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Daikin VRV III, Service Manual

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Ser
vice Man

ual /                    

R-410A Heat Pump ,

 Heat Reco

ver

y RX(E)YQ72-240PYDN,

 PTJU
SiUS34-801A

RXYQ72-240PYDN, PTJU

R-410A Heat Pump 60Hz

REYQ72-240PYDN, PTJU

R-410A Heat Recovery 60Hz

RXYQ72, 96, 120PYDN

RXYQ72, 96, 120PTJU

RXYQ144-240PYDN

RXYQ168-240PTJU

REYQ72, 96, 120PYDN

REYQ72, 96, 120, 144PTJU

RXYQ144PTJU

REYQ144-240PYDN

REYQ168-240PTJU

SiUS34 - 801A_b

SiUS34-801A
Printed in U.S.A. 09/2008 AK

Specifications, designs and other content appearing in this brochure are current as of September 2008 but subject to change without notice.

1645 Wallace Drive, Suite 110

Carrollton, TX75006

[email protected]

www.daikinac.com

AMERICAS

Summary of Contents for VRV III

Page 1: ...TJU RXYQ144 240PYDN RXYQ168 240PTJU REYQ72 96 120PYDN REYQ72 96 120 144PTJU RXYQ144PTJU REYQ144 240PYDN REYQ168 240PTJU SiUS34 801A_b SiUS34 801A Printed in U S A 09 2008 AK Specifications designs and other content appearing in this brochure are current as of September 2008 but subject to change without notice 1645 Wallace Drive Suite 110 Carrollton TX75006 info daikinac com www daikinac com AMERI...

Page 2: ...Specifications 11 1 1 Outdoor Units 11 2 Refrigerant Circuit 17 2 1 RXYQ72P 96P 120P 17 2 2 RXYQ144PTJU 18 3 Functional Parts Layout RXYQ72P 96P 120P 21 3 1 RXYQ144PTJU 21 4 Refrigerant Flow for Each Operation Mode 23 5 Function General 41 5 1 Symbol 41 5 2 Operation Mode 42 6 Basic Control 43 6 1 Normal Operation 43 6 2 Compressor PI Control 44 6 3 Electronic Expansion Valve PI Control 47 6 4 Ste...

Page 3: ...t Operation 72 10 1 Installation Process 72 10 2 Procedure and Outline 73 10 3 Operation when Power is Turned On 91 11 Outdoor Unit PC Board Layout 93 12 Field Settings 94 12 1 Field Settings on the Outdoor Unit 94 Part 3 VRVIII R 410A Heat Recovery 60Hz119 1 Specifications 121 1 1 Outdoor Units 121 1 2 BS Units 126 2 Refrigerant Circuit 128 2 1 REYQ72 96 120PYDN PTJU 128 2 2 REYQ144PTJU 130 2 3 R...

Page 4: ... 9 1 Backup Operation 218 9 2 Demand Operation 218 9 3 Heating Operation Prohibition 218 10 Test Operation 219 10 1 Installation Process 219 10 2 Procedure and Outline 219 10 3 Operation when Power is Turned On 238 11 Outdoor Unit PC Board Layout 240 12 Field Setting 241 12 1 Field Setting from Outdoor Unit 241 Part 4 Indoor Unit 269 1 Specifications 270 2 Refrigerant Circuit 284 3 Operation Flow ...

Page 5: ...n Motor M1F Lock Overload 340 3 5 A7 Indoor Unit Malfunction of Louver Motor M1S 344 3 6 A9 Indoor Unit Electronic Expansion Valve Malfunction Dust Clogging 346 3 7 AF Indoor Unit Drain Level above Limit 350 3 8 AJ Indoor Unit Malfunction of Capacity Determination Device 351 3 9 C4 Indoor Unit Malfunction of Thermistor R2T for Heat Exchanger 352 3 10 C5 Indoor Unit Malfunction of Thermistor R3T fo...

Page 6: ...r Unit Inverter Compressor Starting Failure 400 3 40 LC Outdoor Unit Malfunction of Transmission between Inverter and Control PC Board 403 3 41 P1 Outdoor Unit Inverter Over Ripple Protection 406 3 42 P4 Outdoor Unit Malfunction of Inverter Radiating Fin Temperature Rise Sen sor 408 3 43 PJ Outdoor Unit Faulty Field Setting after Replacing Main PC Board or Faulty Combination of PC Board 410 3 44 U...

Page 7: ... Outdoor Unit 474 1 2 Indoor Unit 484 1 3 BS Unit 486 2 Wiring Diagrams for Reference 487 2 1 Outdoor Unit 487 2 2 Field Wiring 497 2 3 Indoor Unit 505 2 4 BS Unit BSVQ36P 60PVJU 509 3 List of Electrical and Functional Parts 510 3 1 Outdoor Unit 510 3 2 Indoor Side 514 4 Option List 518 4 1 Option List of Controllers 518 4 2 Option Lists Outdoor Unit 519 5 Piping Installation Point 520 5 1 Piping ...

Page 8: ...r serious injury WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury CAUTION Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury It may also be used to alert against unsafe practices NOTE Indicates situations that may result in equipment or property damage accidents only Be sure to read...

Page 9: ...gas leaks during the repair work ventilate the area The refrigerant gas can generate toxic gases when it contacts flames The step up capacitor supplies high voltage electricity to the electrical components of the outdoor unit Be sure to discharge the capacitor completely before conducting repair work A charged capacitor can cause an electrical shock Do not start or stop the air conditioner operati...

Page 10: ...ernal fan rotates at a high speed and can cause injury Do not tilt the unit when removing it The water inside the unit can spill and wet the furniture and floor Be sure to check that the refrigerating cycle section has cooled down sufficiently before conducting repair work Working on the unit when the refrigerating cycle section is hot can cause burns Use the welder in a well ventilated place Usin...

Page 11: ...erminals Improper connections can cause excessive heat generation or fire When connecting the cable between the indoor and outdoor units make sure that the terminal cover does not lift off or dismount because of the cable If the cover is not mounted properly the terminal connection section can cause an electrical shock excessive heat generation or fire Do not damage or modify the power cable Damag...

Page 12: ...connection it can cause an electrical shock or fire If the power cable and lead wires have scratches or have deteriorated be sure to replace them Damaged cable and wires can cause an electrical shock excessive heat generation or fire Do not use a joined power cable or extension cable or share the same power outlet with other electrical appliances since it can cause an electrical shock excessive he...

Page 13: ...the repair and make sure that the resistance is 1 ohm or higher Faulty insulation can cause an electrical shock Be sure to check the drainage of the indoor unit after the repair Faulty drainage can cause the water to enter the room and wet the furniture and floor Caution ...

Page 14: ...II series Heat Pump System Daikin offers a wide range of models to respond to building and office air conditioning needs We are confident that customers will be able to find the models that best suit their needs This service manual contains information regarding the servicing of VRVIII series Heat Pump Heat Recovery System May 2008 After Sales Service Division ...

Page 15: ...SiUS34 801A_b xiv ...

Page 16: ...01A_b General Information 1 Part 1 General Information 1 Model Names of Indoor Outdoor Units 2 2 External Appearance 3 2 1 Indoor Units 3 2 2 Outdoor Units 4 3 Combination of Outdoor Units 5 4 Model Selection 6 ...

Page 17: ...atibility Symbol Heat Recovery Series BSVQ 36P 60P VJU Type Model Name Power Supply Compatibility Symbol 6 ton 8 ton 10 ton 12 ton 14 ton 16 ton 18 ton 20 ton Heat Pump 230V RXYQ 72P 96P 120P 144P 168P 192P 216P 240P TJU 460V RXYQ 72P 96P 120P 144P 168P 192P 216P 240P YDN Heat Recovery 230V REYQ 72P 96P 120P 144P 168P 192P 216P 240P TJU 460V REYQ 72P 96P 120P 144P 168P 192P 216P 240P YDN Model Nam...

Page 18: ...d cassette unit 2 2 FXZQ07M7 FXZQ09M7 FXZQ12M7 FXZQ18M7 Wall mounted type FXAQ07MVJU FXAQ09MVJU FXAQ12MVJU FXAQ18MVJU FXAQ24MVJU Slim ceiling mounted duct type FXDQ07MVJU FXDQ09MVJU FXDQ12MVJU FXDQ18MVJU FXDQ24MVJU Floor standing type FXLQ12MVJU FXLQ18MVJU FXLQ24MVJU Ceiling mounted built in type FXSQ12MVJU FXSQ18MVJU FXSQ24MVJU FXSQ30MVJU FXSQ36MVJU FXSQ48MVJU Concealed floor standing type FXNQ12...

Page 19: ...P 120PYDN RXYQ72P 96P 120PTJU H P 460V H P 230V H P 230V H P 460V H P 230V RXYQ144PTJU RXYQ144P 168P 192P 216P 240PYDN RXYQ168P 192P 216P 240PTJU REYQ72P 96P 120PYDN REYQ72P 96P 120P 144PTJU REYQ144P 168P 192P 216P 240PYDN REYQ168P 192P 216P 240PTJU H R 460V H R 230V H R 460V H R 230V ...

Page 20: ...onnection Piping Kit Option 72 96 120 144 6 ton 1 8 ton 1 10 ton 1 12 ton 230V 1 Ton Number of units Multi Unit Module Outdoor Unit Multi Connection Piping Kit Option 72 96 120 12 ton 460V 2 Heat Pump BHFP22P100U 14 ton 2 16 ton 2 18 ton 2 20 ton 2 Ton Numberof units Single Unit Outdoor Unit Multi Connection Piping Kit Option 72 96 120 144 6 ton 1 8 ton 1 10 ton 1 12 ton 230V Ton Numberof units Mu...

Page 21: ...0P REYQ144PTJU REYQ144P REYQ168P REYQ192P REYQ216P REYQ240P Outdoor unit 1 REYQ72P REYQ96P REYQ120P REYQ144PTJU REMQ72P REMQ72P REMQ72P REMQ96P REMQ120P Outdoor unit 2 REMQ72P REMQ96P REMQ120P REMQ120P REMQ120P Total number of connectable indoor units 12 16 20 24 24 29 33 37 41 Total Capacity Index of Indoor Units to be Connected 36 93 5 48 124 5 60 156 72 187 72 187 84 218 96 249 5 108 280 5 120 ...

Page 22: ... h 12 000 Btu h 18 000 Btu h 24 000 Btu h 30 000 Btu h 36 000 Btu h 48 000 Btu h Equivalent output 0 6 ton 0 8 ton 1 ton 1 5 ton 2 ton 2 5 ton 3 ton 4 ton Capacity of BS unit BSVQ36P BSVQ60P Unit number of connectable indoor unit Five units or less Eight units or less Total capacity of connectable indoor unit Less than 36000 Btu h 36000 Btu h or more less than 60000 Btu h Connectable indoor unit T...

Page 23: ...Model Selection SiUS34 801A_b 8 General Information ...

Page 24: ...on Valve PI Control 47 6 4 Step Control of Outdoor Unit Fans 47 6 5 Outdoor Unit Fan Control in Cooling Operation 48 6 6 Heat Exchanger Control 49 7 Special Control 50 7 1 Startup Control 50 7 2 Large Capacity Start Up Control Heating 51 7 3 Oil Return Operation 52 7 4 Defrost Operation 56 7 5 Pump down Residual Operation 58 7 6 Standby 60 7 7 Stopping Operation 61 8 Protection Control 63 8 1 High...

Page 25: ...eating Operation Prohibition 71 10 Test Operation 72 10 1 Installation Process 72 10 2 Procedure and Outline 73 10 3 Operation when Power is Turned On 91 11 Outdoor Unit PC Board Layout 93 12 Field Settings 94 12 1 Field Settings on the Outdoor Unit 94 ...

Page 26: ... Motor Output Number of Units kW 4 7 1 2 2 4 5 1 3 5 4 5 1 Starting Method Soft Start Soft Start Soft Start Fan Type Propeller Fan Propeller Fan Propeller Fan Motor Output kW 0 75 1 0 75 1 0 75 1 Air Flow Rate cfm 6 530 6 530 7 060 Drive Direct Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe in mm 3 8 9 5 mm C1220T Brazing Connection 3 8 9 5 mm C1220T Brazing Connection 1 2 12 7 mm C1...

Page 27: ...ng Method Soft Start Soft Start Soft Start Fan Type Propeller Fan Propeller Fan Propeller Fan Motor Output kW 0 75 1 0 75 1 0 75 1 0 75 1 0 75 1 0 75 1 Air Flow Rate cfm 6 530 6 530 6 530 6 530 6 530 7 060 Drive Direct Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe 3 in mm φ1 2 12 7 mm C1220T Brazing Connection φ5 8 15 8 mm C1220T Brazing Connection φ5 8 15 8 mm C1220T Brazing Connec...

Page 28: ...s r p m 2900 6300 2 2900 6300 2 Motor Output Number of Units kW 2 2 4 5 1 3 5 4 5 1 3 5 4 5 2 Starting Method Soft Start Soft Start Fan Type Propeller Fan Propeller Fan Motor Output kW 0 75 1 0 75 1 0 75 1 0 75 1 Air Flow Rate cfm 6 530 7 060 7 060 7 060 Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe 3 in mm φ5 8 15 8 mm C1220T Brazing Connection φ5 8 15 8 mm C1220T Brazing Connectio...

Page 29: ... Number of Units kW 4 7 1 2 2 4 5 1 3 5 4 5 1 Starting Method Soft Start Soft Start Soft Start Fan Type Propeller Fan Propeller Fan Propeller Fan Motor Output kW 0 75 1 0 75 1 0 75 1 Air Flow Rate cfm 6 530 6 530 7 060 Drive Direct Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe in mm φ 3 8 9 5 mm C1220T Brazing Connection φ 3 8 9 5 mm C1220T Brazing Connection φ1 2 12 7 mm C1220T Bra...

Page 30: ...00 6300 Motor Output Number of Units kW 3 8 3 8 1 4 7 1 2 2 4 5 1 4 7 1 3 5 4 5 1 Starting Method Soft Start Soft Start Soft Start Fan Type Propeller Fan Propeller Fan Propeller Fan Motor Output kW 0 75 2 0 75 1 0 75 1 0 75 1 0 75 1 Air Flow Rate cfm 8 299 6 530 6 530 6 530 7 060 Drive Direct Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe in mm φ1 2 12 7 mm C1220T Flare Connection φ5...

Page 31: ...volutions r p m 2900 6300 2 2900 6300 2 Motor Output Number of Units kW 2 2 4 5 1 3 5 4 5 1 3 5 4 5 2 Starting Method Soft Start Soft Start Fan Type Propeller Fan Propeller Fan Motor Output kW 0 75 1 0 75 1 0 75 1 0 75 1 Air Flow Rate cfm 6 530 7 060 7 060 7 060 Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe 3 in φ5 8 15 8 mm C1220T Brazing Connection φ5 8 15 8 mm C1220T Brazing Conn...

Page 32: ...increase in the event of a fault 20 S2PH HP pressure switch For STD compressor 1 22 Pressure regulating valve Liquid pipe Used when pressure increases to prevent any damage on components caused by pressure increase in transport or storage 23 Pressure regulating valve Refrigerant regulator Used when pressure increases to prevent any damage on components caused by pressure increase in transport or s...

Page 33: ...efrigerant system diagram Symbol Name Major Function 1 M1C Inverter compressor INV1 Inverter compressor is operated on frequencies between 52Hz and 266Hz by using the inverter The number of operating steps is as follows RXYQ144PTJU 26 step 2 M2C Standard compressor 1 INV2 3 M1F Inverter fan Since the system is the outdoor unit heat exchanging type the fan is operated at 9 step rotation speed by us...

Page 34: ...or Used when pressure increases to prevent any damage on components caused by pressure increase in transport or storage 26 Subcooling heat exchanger Applies subcooling to liquid refrigerant 27 Refrigerant regulator Surplus refrigerant is held according to the operation conditions 28 Capillary tube Used to return the refrigerating oil separated through the oil separator to the INV compressor 29 Cap...

Page 35: ...pe Suction Pipe Stop Valve Stop Valve Stop Valve Gauge Port 50 26 48 8 45 46 18 19 23 33 28 2 41 40 26 39 37 10 35 36 20 12 22 31 3 7 38 17 5 13 25 27 30 16 32 1 21 29 14 15 28 24 9 47 6 4 11 Liquid Pipe INV1 INV2 Right Left S2PH S1NPH S2NPL S1PH Gauge Port Subcool Heat Exchanger 2 Heat Exchanger 2 Subcool Heat Exchanger 1 Heat Exchanger 1 ...

Page 36: ...III R 410A Heat Pump 60Hz 21 GROUND WIRE 16 15 36 37 39 35 12 13 4 6 17 30 14 2 1 3 Functional Parts Layout RXYQ72P 96P 120P Plan Front View Note For reference number refer to page 17 3 1 RXYQ144PTJU REFRIGERANT REGULATOR 11 7 9 25 20 19 33 31 31 10 8 18 40 38 ...

Page 37: ...Plan Front View Note For reference numbers refer to page 18 19 18 11 23 10 17 33 32 22 12 16 15 13 14 36 46 47 48 41 45 4 9 6 8 2 35 1 31 39 37 30 21 20 38 5 3 7 40 COIL FOR EXPANSION VALVE COIL FOR EXPANSION VALVE COIL FOR EXPANSION VALVE COIL FOR EXPANSION VALVE COIL FOR EXPANSION VALVE ...

Page 38: ...ON Theromstat ON Cooling Unit Cooling Unit S1NPH EVM EVT 20SB Tb Tg Tsc TS_A Tsh INVFAN TL SVP 20SA SVE Tf SVO SVL SVG EVJ INV HPS Tdi S1 HPS Tds1 SVT S2NPL Liquid Pipe Stop Valve High Side Equalizer Pipe Stop Valve Low Side Equalizer Pipe Stop Valve Gas Pipe Stop Valve Refrigerant Regulator Gauge Port High temperature high pressure gas High temperature high pressure liquid Low temperature low pre...

Page 39: ...peration OFF Operation ON Theromstat OFF Operation ON Theromstat ON Heating Unit Heating Unit INV HPS Tdi S1 HPS Tds1 SVT S2NPL Liquid Pipe Stop Valve High Side Equalizer Pipe Stop Valve Low Side Equalizer Pipe Stop Valve Gas Pipe Stop Valve Refrigerant Regulator Gauge Port High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure RXYQ72 96 120PYDN PTJU ...

Page 40: ...S Tds1 SVT S2NPL Indoor Unit Cooling Unit Operation ON Theromstat OFF Cooling Unit Cooling Unit Operation ON Theromstat ON Operation OFF Liquid Pipe Stop Valve High Side Equalizer Pipe Stop Valve Low Side Equalizer Pipe Stop Valve Gas Pipe Stop Valve Refrigerant Regulator Gauge Port High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure RXYQ72 96 120P...

Page 41: ...L SVP 20SA SVE Tf SVO SVL SVG EVJ INV HPS Tdi S1 HPS Tds1 SVT S2NPL Liquid Pipe Stop Valve High Side Equalizer Pipe Stop Valve Low Side Equalizer Pipe Stop Valve Gas Pipe Stop Valve Refrigerant Regulator Gauge Port High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure RXYQ72 96 120PYDN PTJU Indoor Unit Heating Unit Operation ON Theromstat OFF Operati...

Page 42: ...ion OFF Operation ON Theromstat OFF Operation ON Theromstat ON Heating Unit Heating Unit S1NPH EVM EVT 20SB Tb Tg Tsc TS_A Tsh INVFAN TL SVP 20SA SVE Tf SVO SVL EVJ INV HPS Tdi S1 HPS Tds1 SVT S2NPL Liquid Pipe Stop Valve High Side Equalizer Pipe Stop Valve Low Side Equalizer Pipe Stop Valve Gas Pipe Stop Valve Refrige Regu Gauge Port High temperature high pressure gas High temperature high pressu...

Page 43: ...A SVE TS_A Tf Ta INV1 Suction Pipe Liquid Pipe Equalizing Pipe Refrigerant Regulator Equalizing Pipe Stop Valve Stop Valve Stop Valve Left Right One Body Type High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Indoor Unit Cooling Unit Thermostat ON Thermostat OFF Cooling Unit Cooling Unit Low Pressure Equalizer Pipe Gas Pipe Liquid Pipe Fan OFF In...

Page 44: ... OFF Indoor unit Operation Fan ON ON Fan LL ON 192pls 192pls OFF S1NPH S2NPL HPS EVM EVT 20SB Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL SVO SVG EVJ HPS EVM EVT Tdi Tb Tg Tsc Tsh 20SA SVE TS_A Tf Ta INV2 INV1 High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Stop Valve Stop Valve Stop Valve Left Right One Body Type Suction Pipe Liquid Pipe Equ...

Page 45: ... Pipe S1NPH S2NPL HPS EVM EVT 20SB Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL SVO SVG EVJ HPS EVM EVT Tdi Tb Tg Tsc Tsh 20SA SVE TS_A Tf Ta INV2 INV1 High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Stop Valve Stop Valve Stop Valve Left Right One Body Type Suction Pipe Liquid Pipe Equalizing Pipe Refrigerant Regulator Equalizing Pipe Fan OFF ...

Page 46: ... Equalizer Pipe Fan LL ON S1NPH INV1 HPS EVM EVT 20SB Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL SVO SVG EVJ HPS EVM EVT Tdi Tb Tg Tsc Tsh 20SA SVE TS_A Tf Ta S2NPL INV2 High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Stop Valve Stop Valve Stop Valve Left Right One Body Type Suction Pipe Liquid Pipe Equalizing Pipe Refrigerant Regulator Equa...

Page 47: ...ualizer Pipe 0pls 160 pls 160 pls S1NPH S2NPL HPS EVM EVT 20SB Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL SVO SVG EVJ HPS EVM EVT Tdi Tb Tg Tsc Tsh 20SA SVE TS_A Tf Ta INV2 INV1 Stop Valve Fan OFF Fan LL High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Stop Valve Stop Valve Left Right One Body Type Suction Pipe Liquid Pipe In operation of def...

Page 48: ...quid Pipe 160 pls 160 pls 0pls S1NPH INV1 HPS EVM EVT 20SB Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL SVO SVG EVJ INV2 HPS EVM EVT Tdi Tb Tg Tsc Tsh 20SA SVE TS_A Tf Ta S2NPL Fan OFF Fan LL Fan LL High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Stop Valve Stop Valve Left Right One Body Type Suction Pipe Liquid Pipe Equalizing Pipe Refrigeran...

Page 49: ... Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Liquid Pipe Stop Valve Gauge Port RXYQ72 96 120PY...

Page 50: ...uid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Liquid Pipe Stop Valve Gauge Port RXYQ72 96 120PYDN P...

Page 51: ...T S2NPL Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Liquid Pipe Stop Valve Gauge Port RXYQ72 9...

Page 52: ...VT S2NPL Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Liquid Pipe Stop Valve Gauge Port RXYQ72 ...

Page 53: ...S Tds1 SVT S2NPL Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Liquid Pipe Stop Valve Gauge Port...

Page 54: ...iquid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Liquid Pipe Stop Valve Gauge Port RXYQ72 96 120PYDN...

Page 55: ...Pressure regulating valve Refrigerant regulator The circuit will be closed when SVL SVO SVG are all closed In this case the increased pressure in the refrigerant regulator will be transferred to the liquid refrigerant pipe side to regulate the pressure Suction Pipe Liquid Pipe Equalizing Pipe Refrigerant Regulator Right S1NPH S2NPL S1PH EVM EVT Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL Pressur...

Page 56: ...at SVE Y6S Y5S Y10S Main bypass solenoid valve SVP Y5S Y4S Solenoid valve for hot gas SVL Y4S Y3S Refrigerant regulator liquid pipe solenoid valve SVG Y1S Refrigerant regulator gas pipe solenoid valve SVO Y7S Refrigerant regulator exhaust pipe solenoid valve SVT Y8S Y6S Refrigerant regulator discharge pipe solenoid valve Ta R1T A1P Outdoor air temperature TsA R8T R10T Suction pipe temperature Tb R...

Page 57: ...n mode changeover Malfunction Standby Thermostat ON After completion of startup control Cooling startup Heating startup Thermostat ON Operation mode changeover No Yes Mode changeover Operation mode changeover Malfunction Standby Indoor unit stop or thermostat OFF Malfunction Standby Malfunction Standby Indoor unit stop or thermostat OFF Indoor unit stop or thermostat OFF Oil return Defrost and Mod...

Page 58: ...xpansion valve Subcooling EVT Y3E PI control PI control Electronic expansion valve Refrigerant charge EVJ Y2E 80 pls 80 pls Four way valve Heat exchanger switch 20SA Y3S OFF Outdoor unit heat exchanger Condenser OFF Outdoor unit heat exchanger Evaporator ON Four way valve High low pressure gas pipe switch 20SB Y2S ON OFF Solenoid valve Main bypass SVE Y6S ON OFF Solenoid valve Hot gas SVP Y5S OFF ...

Page 59: ...or capacity to adjust Te to achieve target value TeS Te Low pressure equivalent saturation temperature F Te set value Make this setting while in Setting mode 2 TeS Target Te value Varies depending on Te setting operating frequency etc On multi outdoor unit systems this control is made according to values of the first priority unit which is detected with the pressure sensor Te setting F L M Normal ...

Page 60: ... ON 27 96Hz ON 28 104Hz ON 29 116Hz ON 30 124Hz ON 31 132Hz ON 32 144Hz ON 33 158Hz ON 34 176Hz ON 35 188Hz ON 36 202Hz ON 37 210Hz ON Initial step RXYQ144PTJU 12 ton STEP No unit 1 INV unit 2 INV 1 52Hz 52Hz 2 56Hz 56Hz 3 62Hz 62Hz 4 66Hz 66Hz 5 70Hz 70Hz 6 74Hz 74Hz 7 80Hz 80Hz 8 88Hz 88Hz 9 92Hz 92Hz 10 96Hz 96Hz 11 104Hz 104Hz 12 110Hz 110Hz 13 116Hz 116Hz 14 124Hz 124Hz 15 132Hz 132Hz 16 144H...

Page 61: ...8 166Hz 166Hz 19 176Hz 176Hz 20 80Hz 80Hz ON1 21 88Hz 88Hz ON1 22 96Hz 96Hz ON1 23 104Hz 104Hz ON1 24 116Hz 116Hz ON1 25 124Hz 124Hz ON1 26 132Hz 132Hz ON1 27 88Hz 88Hz ON2 28 96Hz 96Hz ON2 29 104Hz 104Hz ON2 30 124Hz 124Hz ON2 31 144Hz 144Hz ON2 32 158Hz 158Hz ON2 33 166Hz 176Hz ON2 34 176Hz 158Hz ON2 35 188Hz 188Hz ON2 36 202Hz 202Hz ON2 37 210Hz 210Hz ON2 38 202Hz 202Hz ON2 39 210Hz 210Hz ON2 I...

Page 62: ...e and close the valve after the completion of refrigerant charge For normal operation fully open this electronic expansion valve 6 4 Step Control of Outdoor Unit Fans Used to control the revolutions of outdoor unit fans in the steps listed in table below according to condition changes Figures listed above are all those controlled while in standard mode which vary when the system is set to high sta...

Page 63: ...ure control using the outdoor unit fan to retain appropriate liquid pressure thus ensuring refrigerant circulation rate to be supplied to indoor units Hold the current step on outdoor unit fan 1 step on outdoor unit fan 1 step on outdoor unit fan PI control PI control Lapse of 20 sec Lapse of 20 sec Fan step 7 Pc 446 6psi Pc 461 1psi Fan step 8 Pc 475 6psi Fan step 9 PI control PI control PI contr...

Page 64: ...ts if there is no step for the destination of transition that step will be skipped 1 Condenser 2 Condenser B1 Outdoor unit 1 2 Evaporator Outdoor unit 1 Condenser 2 Condenser Outdoor unit 1 Condenser 2 Condenser Outdoor unit 1 Condenser 2 Evaporator GR 25 GR 20 GR 25 GR 20 GR 25 A3 GR 15 GR 10 B2 Outdoor unit 1 Evaporator 2 Evaporator Outdoor unit 1 Evaporator 2 Evaporator GR 15 GR 10 B3 A4 GR 15 ...

Page 65: ...s Pc Pe 56 55psi Compressor 2 M2C M2C Outdoor unit fan 1 M1F M1F STEP4 Ta 68 F OFF Ta 68 F STEP4 1step 15 sec When Pc_max 313 2psi 1step 15 sec When Pc_max 256 65psi Outdoor unit fan 2 M2F Electronic expansion valve Main EVM Y1E Y1E 0 pls 1375 pls 1375 pls Y3E Electronic expansion valve Subcooling EVT Y2E Y3E 0 pls 0 pls 0 pls Y5E Electronic expansion valve Refrigerant charge EVJ Y4E Y2E 80 pls 80...

Page 66: ...ntrol 20SA OFF 1375 pls Y3E Electronic expansion valve Subcooling EVT Y2E Y3E 0 pls 0 pls 0 pls Y5E Electronic expansion valve Refrigerant charge EVJ Y4E Y2E 80 pls 80 pls 80 pls Four way valve Heat exchanger switch 20SA Y2S Y3S When outdoor heat exchangeris evaporator ON When outdoor heat exchangeris condenser OFF When outdoor heat exchanger is evaporator ON When outdoor heat exchanger is condens...

Page 67: ...ds 7 3 Oil Return Operation Used to recover refrigerant oil that flows out from the compressor to the system side by conducting the oil return operation This prevents the compressor from running out of refrigerant oil 7 3 1 Cooling Oil Return Operation Start conditions Referring to the following conditions start cooling oil return operation Integral oil rise rate is reached to specified level When...

Page 68: ...number of compressors that were used before oil return operation Compressor 2 M2C M2C Outdoor unit fan 1 M1F M1F Cooling fan control Cooling fan control Outdoor unit fan 2 M2F Four way valve for heat exchanger selection 20SA Y2S Y3S OFF OFF Y9S Four way valve for high and low pressure gas pipe selection 20SB Y8S Y2S ON ON Electronic expansion valve main EVM Y1E Y1E 1375pls 1375pls Y3E Electronic e...

Page 69: ...load that was applied before oil return operation When current circulation rate circulation rate required for oil return operation turn ON the STD compressor every 10 seconds up to 3 units at maximum Compressor 2 M2C M2C Outdoor unit fan 1 M1F M1F When outdoor unit heat exchanger is condenser the fan will run under cooling fan control When outdoor unit heat exchanger is evaporator the fan will run...

Page 70: ...s the operation listed in the table above Slave units Operating units conduct the operation listed in the table above Non operating units conduct the operation listed in the table above after the Oil returning process Non operating units stop while in Preparation mode End conditions Pe_min 31 9psi After a lapse of 9 min or ...

Page 71: ...ration Operation after defrosting RXYQ 144PTJU For any model other than that shown on the left Compressor 1 M1C M1C 232Hz ON 232Hz ON Compressor 2 M2C M2C Outdoor unit fan M1F M1F Step 8 M2F Four way valve heat exchanging 20SA Y2S Y3S OFF ON Y9S Four way valve switching between high and low pressure gas pipes 20SB Y8S Y2S ON OFF Electronic expansion valve main EVM Y1E Y1E 1375pls 0pls 200 400pls Y...

Page 72: ...Compressor 1 M1C 210Hz ON 210Hz ON Compressor 2 M2C Outdoor unit fan 1 M1F Four way valve for heat exchanger selection 20SA Y3S OFF OFF Four way valve for high and low pressure gas pipe selection 20SB Y2S Holds Holds Electronic expansion valve main EVM Y1E 1375pls 0pls Electronic expansion valve subcooling EVT Y3E SH control 0pls Electronic expansion valve refilling refrigerant EVJ Y2E 80pls 80pls...

Page 73: ...lectronic expansion valve main EVM Y1E Y1E PI control PI control Y3E Electronic expansion valve subcooling EVT Y2E Y3E SH control 0pls Y5E Electronic expansion valve refilling refrigerant EVJ Y4E Y2E 80pls 80pls Solenoid valve main bypass SVE Y5S Y6S OFF OFF Y10S Solenoid valve hot gas SVP Y4S Y5S OFF OFF Solenoid valve liquid pipe of refrigerant regulator SVL Y3S Y4S 0pls 0pls Solenoid valve gas ...

Page 74: ... Y1S Y1S OFF OFF Solenoid valve Refrigerant regulator exhaust pipe SVO Y7S Y7S OFF OFF Solenoid valve Refrigerant regulator discharge pipe SVT Y6S Y8S OFF OFF Ending conditions 5 min Pe_min 71 05psi Pc_max 426 3psi Master unit Tdi 230 F Master unit Tp 257 F or Actuator Symbol Elect symbol Master unit operation Slave unit operation RXYQ 144PTJU For any model other than that shown on the left Compre...

Page 75: ...valve Refrigerant regulator discharge pipe SVT Y6S Y8S OFF OFF Ending conditions 3 min Pe_min 36 25psi Pc_max 453 85psi Master unit Tdi 230 F Master unit Tp 284 F Actuator Symbol Elect symbol Operation RXYQ 144PTJU For any model other than that shown on the left Compressor 1 M1C M1C OFF Compressor 2 M2C M2C OFF Outdoor unit fan 1 M1F M1F Ta 86 F STEP4 Ta 86 F OFF Outdoor unit fan 2 M2F Ta 86 F STE...

Page 76: ...2C M2C OFF Outdoor unit fan1 M1F M1F OFF Outdoor unit fan2 M2F OFF Electronic expansion valve Main EVM Y1E Y1E 0 pls Y3E Electronic expansion valve Subcooling EVT Y2E Y3E 0 pls Y5E Electronic expansion valve Refrigerant charge EVJ Y4E Y2E 80 pls Four way valve Heat exchanger switch 20SA Y2S Y3S Holds Y9S Four way valve High low pressure gas pipe switch 20SB Y8S Y2S Holds Solenoid valve Main bypass...

Page 77: ... OFF and the malfunction will be determined according to the number of retry times Item Judgment Criteria Malfunction Code 1 Abnormal low pressure level 10 15psi E4 2 Abnormal high pressure level 580psi E3 3 Abnormal discharge pipe temperature level 275 F F3 4 Abnormal power supply voltage Reverse phase power supply U1 5 Abnormal inverter current level 16 1A 260 sec L8 6 Abnormal radiator fin temp...

Page 78: ...es the maximum value within the system Normal Operation Pc_max 503 15psi Pc_max 514 75psi Pc_max 503 15psi Pc_max 469 8psi Pc_max 527 8psi Upper limit compressor step max Max Step When occurring 3 times within 30 min HPS is activated without high pressure standby and the malfunction code E3 is displayed Upper limit compressor step 2 step down After 10 sec Current step maintained Upper limit compre...

Page 79: ...lue within the system Pc_max 426 3psi Pc_max 495 9psi Pc_max 479 95psi Pc_max 479 95psi Pc_max 527 8psi When occurring 3 times within 30 min HPS is activated without high pressure standby and the malfunction code E3 is displayed Normal Operation After 10 sec High pressure standby Compressor step 7 STEP down Set the compressor step to STEP 1 When high pressure is limited ...

Page 80: ...he minimum value within the system Pe_min 49 3psi Pe_min 56 55psi Pe_min 42 05psi Pe_min 36 25psi Pe_min 10 15psi Pe_min 21 75psi When occurring 4 times within 30 min the malfunction code E4 is displayed Normal Operation During the control of low pressure protection Restart standby up to 3 times within a period of 30 min For any model other than 144PTJU 210Hz OFF upper For Model 144PTJU 1 2 of com...

Page 81: ...mal operation Pe_min 24 65psi See 1 Pe_min 39 15psi Pe_min 24 65psi Pe_min 29psi A lapse of 15 sec Pe_min 24 65psi A lapse of 10 sec Pe_min 18 85psi Pe 10 15psi Restart standby up to 3 times within a period of 60 min Stop due to malfunction E4 is displayed Restart standby occurs four times within a period of 60 min Compressor system See 2 1 step up per 15 sec Compressor system See 2 2 step up per ...

Page 82: ...sor OR HTdi 230 F A lapse of 20 sec HTdi 239 F A lapse of 30 sec Matching of frequency HTdi 266 F HTdi 248 F continues for a period of 90 sec OR HTdi 275 F HTdi 248 F continues for a period Stop due to malfunction F3 is displayed Discharge pipe temperature standby occurs 3 times for a period of 100 min INV compressor See 2 1 step up per 20 sec Restart standby 10 min up to 2 times for a period of 1...

Page 83: ...l Perform the following control of integrated for each INV compressor Normal operation During the control of inverter protection Inverter current value 14 7A 460V 26 5A 230V INV upper limit frequency max 210Hz Inverter current value 14 7A 460V 26 5A 230A INV Comp upper limit step 1 step up Inverter current value 14 7A 460V 26 5A 230V continues for 20 seconds Current status maintained 10 seconds IN...

Page 84: ...n During the control of fin temperature protection Tfin 177 8 F INV upper limit frequency max 210Hz Tfin 183 2 F INV Comp upper limit step 1 step up Tfin 177 8 F continues for 3 minutes Current status maintained 10 seconds INV Comp upper limit step 1 step down Tfin 183 2 F Tfin 199 4 F Fin temperature standby When occuring 4 times within 60 min th malfunction code L4 is displayed ...

Page 85: ...hin 90 min the malfunction code E6 is displayed If the power supply is reset while in operation prohibition mode the prohibition timer will continue counting when the power supply is turned ON 460 34 230V 8 5 STD Compressor Overload Protection This control is used to prevent abnormal heating due to overcurrent to the compressor resulting from failures of the STD compressor such as locking ...

Page 86: ...s of operation Disable the compressor with the operation disable setting made from operating and only operate other compressors 9 2 Demand Operation In order to save the power consumption the capacity of outdoor unit is saved with control forcibly by using Demand 1 Setting or Demand 2 Setting To operate the unit with this mode additional setting of Continuous Demand Setting or external input by ex...

Page 87: ...l in the order of the steps shown 3 Selection of Location 4 Inspecting and Handling the Unit 5 Placing the Unit 7 Field Wiring 6 Refrigerant Piping 8 Airtight Test and Vacuum Drying 9 Pipe Insulation 10 Checking of Device and Installation Conditions 11 Additional Refrigerant Charge and Check Operation 13 Test Run Operations which require the power to be turned on ...

Page 88: ...ion 1 2 Do not use a megger tester for other circuits than 200V or 240V circuit 1 Measures to be taken against decreased insulation resistance in the compressor If the compressor is left to stand for an extended period of time after the refrigerant is charged with the stop valve open and the power supply OFF refrigerant may be mixed in the compressor thus decreasing the insulation resistance Heat ...

Page 89: ... size at φ7 8 Total length ft of liquid piping size at φ5 8 Total length ft of liquid piping size at φ3 8 Total length ft of liquid piping size at φ3 4 Total length ft of liquid piping size at φ1 2 Total length ft of liquid piping size at φ1 4 0 249 0 121 0 040 0 175 0 081 0 015 HEAT PUMP SYSTEM MODEL NAME MODEL NAME THE AMOUNT OF REFRIGERANT RXYQ72 120PYDN RXYQ72 120PTJU RXYQ144PTJU RXYQ144 192PY...

Page 90: ...ous wirings Check for failure to open stop valves Check for excessive refrigerant refilling Automatic judgment of piping length Before starting the normal operation after the completion of check operations make sure indoor and outdoor units are operating normally Turn outdoor unit and indoor unit power on Check the LED display of the outdoor unit PC board Conduct check operations Check for normal ...

Page 91: ... and insure sufficient pressure resistance always use the special tools dedicated for R 410A Use charge hose that has a pushing stick for connecting to service port of shutoff valves or refrigerant charge port Vacuum pump The vacuum pump for vacuum drying should be able to lower the pressure to 14 6 psi Take care the pump oil never flows backward into the refrigerant pipe when the pump stops Gauge...

Page 92: ...moisture enters the piping use the following instructions For example if working in a rainy season takes long enough that condensation may form on the inside of the pipes rain might enter the pipes during work After evacuating the system for 2 hours pressurize the system to 7 25 psi vacuum break with nitrogen gas and evacuate the system again using the vacuum pump for 1 hour to 14 6 psi or less va...

Page 93: ...e holes we recommend you remove burrs in the knockout holes See figure 27 and paint the edges and areas around the edges using the repair paint 10 2 5 Additional Refrigerant Charge and Check Operation The outside unit is charged with refrigerant when shipped from the factory but depending on the size and length of the piping when installed it may require additional charging For charging the additi...

Page 94: ... it may cause an explosion or accident R 410A is a mixed refrigerant so charging it as a gas will cause the refrigerant composition to change which may prevent normal operation Other tanks Stand the tank upright and charge The siphon pipe goes all the way inside so the tank does not need be put upside down charge in liquid form Stand the tank upside down and charge ...

Page 95: ...aft counterclockwise with the hexagon wrench 2 Turn it until the shaft stops 3 Make sure to tighten the cap securely For the tightening torque refer to the table Tightening Torque To close 1 Remove the cap and turn the shaft clockwise with the hexagon wrench 2 Securely tighten the valve until the shaft contacts the main body seal 3 Make sure to tighten the cap securely For the tightening torque re...

Page 96: ...nch 8mm 16 6 20 3 φ 1 LED display h OFF i ON j Blinking Uncertain LED display H1P H2P H3P H4P H5P H6P H7P 1 Press the MODE button BS1 once at Setting Mode 1 H1P off and set the MON ITOR MODE H1P Blinking j h h h h h h 2 Press the SET button BS2 the number of times until the LED display matches that at right For checking the number of outside units eight times j h h i h h h For checking the number ...

Page 97: ... refrigerant charging operation while working on the BS and indoor unit When opening the front panel be cautious of the rotating fan After the outside unit stops operating the fan may continue to rotate for a while Note If operation is performed within 12 minutes after the BS indoor and outside units are turned on H2P will be lit on and the compressor will not operate Check the LED display indicat...

Page 98: ...to the failure of Judgment of piping length Check operation must be performed for each refrigerant piping system Checking is impossible if plural systems are being done at once The individual problems of indoor units can not be checked Check these problems with a test run after the check operation is completed Refer to Chaper 13 The check operation cannot be performed in recovery or other service ...

Page 99: ...oling mode or heating mode by the following temperature condition When charging in cooling mode the system will stop operation when the required amount of refrigerant is charged During charging in heating mode a person must manually close valve A and stop operation Beforehand check the remaining refrigerant that is needed to charge based on the additional charging amount in step 2 and the charged ...

Page 100: ...ce if the LED display is not as below Measuring device R 410A tank with siphon Charge hose High side equalizer pipe shutoff valve Valve C Outside unit A Outside unit B Valve A Indoor unit Valve B Gas pipe shutoff valve Low side equalizer pipe shutoff valve Liquid pipe shutoff valve Refrigerant charge port Valve A Field pipings Refrigerant flow when charging Shutoff valve Service port The refrigera...

Page 101: ...em stops operating 9 When the compressor stops working the fan may continue rotation close valve A immediately 8 Check that the LED displays are as below and the remote controller display shows P9 code After checking push the MODE button BS1 once and the charging is complete In case of heating mode 7 Push the TEST button BS4 once within 5 minutes after procedure 5 4 and close all front panels Afte...

Page 102: ...l overcharge Remote controller cooling mode malfunction code Remote controller heating mode malfunction code 6 After completing the additional refrigerant charging record the charging amount on the accessory REQUEST FOR THE INDICATON label Installation records and adhere it to the back side of the front panel Also record the factory charged refrigerant amount additional refrigerant amount in the f...

Page 103: ...gs as needed using the push button BS1 BS5 on the outside unit PC board A1P with the power on See 10 2 6 Onsite Settings 3 Perform the check operation following the Check Operation Method of the Service Precautions label lower on the Electrical Components Box lid See figure 32 The system operation for about 40 60 minutes and automatically stops the check operation If the malfunction code is not di...

Page 104: ...ping work Wiring work Air tight test Vacuum drying Additional refrigerant charge Check operation Check that all work for the BS and indoor units is finished and that it is safe to operate Malfunction code Installation error Remedial action E3 E4 F3 F6 UF The shutoff valve of the outside unit is left closed Open the shutoff valve U1 The phases of the power to the outside unit is reversed Exchange t...

Page 105: ...e following 1 Make sure the indoor and outside units are operating normally 2 Operate each indoor unit one by one and make sure the corresponding outside unit is also operating 3 Check to see if cold or hot air is coming out from the indoor unit 4 Push the fan direction and strength buttons on the remote controller to see if they operate properly ...

Page 106: ...abel on the back side of the front panel Record the installation date Record the installation date on the accessory REQUEST FOR THE INDICATION label in accordance with the IEC60335 2 40 And attach the label on the back side of the front panel Note After the test run when handing the unit over to the customer make sure the Electrical Componets Box lid the inspection door and the unit casing are all...

Page 107: ...se the unit cannot be run for up to 12 minutes to automatically set the address indoor outdoor address etc Status Outdoor unit Test lamp H2P ON Can also be set during operation described above Indoor unit If the ON button is pushed during operation described above the UH or U4 malfunction indicator blinks It returns to normal when the automatic setting is complete R 410A Label R 410A Label RXYQ144...

Page 108: ... display LED LEDs display mode according to the setting 3 Mode setting switch Used to change mode 4 Local setting switch Used to make field settings MODE SET RETURN TEST RESET BS1 BS2 BS3 BS4 BS5 H1P H2P H3P H4P H5P H6P H7P H8P 1 2 3 4 1 2 3 4 F1 F2 F1 F2 Q1 Q2 Indoor Outdoor Outdoor Outdoor Multi outdoor 2 Set mode display LED 3 Mode setting switch 1 Microcomputer normal monitor 4 Local setting s...

Page 109: ...y setting to ON with No 29 106 111 3 Setting of demand operation 1 Used to place limits on the compressor operating frequency to control the upper limit of power consumption 1 Mode 1 of Demand 1 60 or less of rating 2 Mode 2 of Demand 1 70 or less of rating 3 Mode 3 of Demand 1 80 or less of rating 4 Demand 2 40 or less of rating For setting with the use of external control adapter Set the system ...

Page 110: ... failure used to prohibit the operation of outdoor unit s concerned and to conduct emergency operation of the system only with operable or outdoor unit s Make this setting while in Setting mode 2 For system with multiple outdoor units Set with No 38 39 or 40 113 117 8 Additional refrigerant charging If a necessary amount of refrigerant cannot be charged due to the stop of outdoor unit operate the ...

Page 111: ...spare PC board be sure to make settings shown below When you change the main PC board A1P to spare parts PC board please carry out the following setting DIP Switch Detail DS No Item Contents DS1 2 Power supply specification ON 200V class 220V OFF Factory setting of spare PC board 400V class 380V DS1 3 Except Multiple use Number of fans Main PC board control Make the settings according to models of...

Page 112: ...4 DS2 1 DS2 2 and DS2 3 to ON Setting method represents the positions of switches DS1DS2 LED EB 1 2 3 4 DS1 1 2 3 4 DS2 Factory Setting represents the positions of switches ON OFF 1 2 3 4 1 2 3 4 ON OFF 1 2 3 4 1 2 3 4 ON OFF 1 2 3 4 1 2 3 4 ON OFF Set DS1 2 DS1 4 DS2 1 and DS2 4 to ON HEAT PUMP RXYQ96PTJU HEAT PUMP RXYQ120PTJU HEAT PUMP 230V RXYQ72PTJU Application model Set DS1 2 DS1 4 DS2 1 DS2 ...

Page 113: ...2 Mode changing procedure 1 Single outdoor unit system 7 7 8 7 7 7 7 7 Outdoor multi system Master 7 7 8 7 7 7 7 8 Slave 1 7 7 7 7 7 7 7 9 Pushbutton switches Used to change the setting mode Used for onsite setting Used to set up address when wiring is changed or an indoor unit is added Used for check operation and test operation MODE SET RETURN TEST BS1 BS2 BS3 BS4 BS5 REWIRING Setting mode 1 Mon...

Page 114: ... button Press BS3 RETURN button Setting item selection SET button Setting mode 2 Set Select mode with BS2 SET button in each selection step Setting condition selection SET button Setting condition Contents display Press BS3 RETURN button Press BS3 RETURN button Press BS3 RETURN button Press BS1 MODE button Press BS1 MODE button Press BS1 MODE button Press BS1 MODE button for more than 5 sec V2762 ...

Page 115: ... set to any mode other than that push the MODE BS1 button to set the system to Setting mode 1 Check the system for each condition through LED displays Refer to information in table on the right Pushing the RETURN BS3 button will bring the system to the initial state of Setting mode 1 Procedure for checking check items V2763 MODE H1P TEST H2P COOL HEAT select IND H3P MASTER H4P SLAVE H5P Low noise ...

Page 116: ...on in a simple way The operating time is based on Starting set and Ending set 25 Setting of external low noise level Sets low noise level when the low noise signal is input from outside 26 Night time low noise operation start setting Sets starting time of nighttime low noise operation Night time low noise setting is also required 27 Night time low noise operation end setting Sets ending time of ni...

Page 117: ...stat OFF unit or non heating operation unit Make this setting to shorten the BS Cool Heat selection control time However make the setting pay careful attention to the following If the refrigerant piping between each BS unit connected to outdoor unit and indoor unit is not more than 10 m in length this setting will be enabled If the refrigerant piping between BS unit and indoor unit is long in leng...

Page 118: ... 7 7 8 7 7 7 Low Level L 8777778 Normal Level M 8777787 HighN 8777788 HighO 8777877 HighP Level H 8777878 HighQ 8777887 HighR 8777888 9 Tc setting 8 7 7 8 7 7 8 Low 8777778 Normal factory setting 8777787 High 8777877 10 Defrost changeover setting 8 7 7 8 7 8 7 Slow defrost 8777778 Normal factory setting 8777787 Quick defrost 8777877 11 Sequential operation setting 8 7 7 8 7 8 8 OFF 8777778 ON 8777...

Page 119: ...F 8777778 ON 8777787 29 Capacity precedence setting 8 7 8 8 8 7 8 OFF 8777778 ON 8777787 30 Demand setting 1 8 7 8 8 8 8 7 60 demand 8777778 70 demand 8777787 80 demand 8777877 32 Normal demand setting 8 8 7 7 7 7 7 OFF 8777778 Demand 1 8777787 Demand 2 8777877 38 Emergency operation Master unit is inhibited to operate 8 8 7 7 8 8 7 OFF 8777778 Master unit operation Inhibited 8777787 39 Emergency ...

Page 120: ...nected zone units Fixed to 0 9 7 7 7 8 8 8 8 Number of outdoor units 2 9 7 7 8 7 7 7 11 Number of zone units 9 7 7 8 7 8 8 Lower 6 digits 12 Number of terminal units 3 9 7 7 8 8 7 7 Lower 4 digits upper 13 Number of terminal units 3 9 7 7 8 8 7 8 Lower 4 digits lower 14 Contents of malfunction the latest 9 7 7 8 8 8 7 Malfunction code table Refer to page 332 15 Contents of malfunction 1 cycle befo...

Page 121: ...7 9 H 9 7 7 7 7 7 8 Data such as addresses and number of units is expressed as binary numbers the two ways of expressing are as follows The No 1 cool heat unified address is expressed as a binary number consisting of the lower 6 digits 0 63 In the address is 010110 binary number which translates to 16 4 2 22 base 10 number In other words the address is 22 The number of terminal blocks for No 12 an...

Page 122: ... Level 3 for set item No 22 Setting of nighttime low noise level 2 If necessary while in Setting mode 2 select the setting condition i e 20 00 22 00 or 24 00 for set item No 26 Setting of start time of nighttime low noise operation Use the start time as a guide since it is estimated according to outdoor temperatures 3 If necessary while in Setting mode 2 select the setting condition i e 06 00 07 0...

Page 123: ...db target Note1 Above values are reference only measured in silent room Note2 Above values are for 1 module only Operation sound of level 2 Operation sound of level 1 Operation sound of level 3 Operation sound of level 2 Operation sound of level 1 Operation sound of level 3 Rated operation sound Operation sound of level 2 Operation sound of level 1 Operation sound of level 3 Mole 2 precedes Level ...

Page 124: ...etting of constant demand to ON 2 While in Setting mode 2 select the set item No 30 Setting of Demand 1 level and then set the setting condition to targeted mode Description of setting Setting procedure Setting item Condition Description External control adaptor Outdoor unit PC board Demand 1 Level 1 Operate with power of approx 60 or less of the rating Short circuit between 1 and C of the termina...

Page 125: ...setting When the Normal demand setting is set to ON OFF has been set at factory the power consumption can be set with the Demand 1 level setting 70 of rated power consumption has been set at factory Power consumption Rated power consumption 80 of rated power consumption 70 of rated power consumption 60 of rated power consumption V3083 The power consumption set with Demand 1 level setting 0Demand l...

Page 126: ... one time Returns to the setting mode 1 and turns H1P off ON OFF 9 Blink Setting No Setting contents Setting No indication Setting No indication Setting contents Setting contents indication Initial setting H1P H2P H3P H4P H5P H6P H7P H1P H2P H3P H4P H5P H6P H7P H1P H2P H3P H4P H5P H6P H7P 12 External low noise Demand setting NO Factory setting 9 YES 9 22 Night time low noise setting OFF Factory se...

Page 127: ...gerant recovery operation Collect the refrigerant using a refrigerant recovery unit See the instruction attached to the refrigerant recovery unit for more detal Press Mode button BS1 once and reset Setting Mode 2 12 1 6 Setting of Vacuuming Mode In order to perform vacuuming operation at site fully open the expansion valves of indoor and outdoor units and turn on some solenoid valves Operating pro...

Page 128: ...emote controller for 4 seconds or more when the outdoor unit stops because of malfunction state Details of operation Unit stopping Press the TEST button for 5 seconds 10 sec to 10 minutes LED display H1P H7P 8 ON 3 OFF 9 BLINK 3383333 3933338 Pressure equalizing Step 1 20 sec to 2 minutes Stop valve check Stop valve check Wrong wiring check Piping length check 5 minutes 3933383 Cooling start contr...

Page 129: ...on which this emergency operation is possible O Emergency operation by setting outdoor unit PC board In malfunction stop state of the outdoor unit due to defective compressor by setting the relevant compressor or relevant outdoor unit to Disabling operation setting the emergency operation is conducted with operational compressors or outdoor units E3 E4 E5 F3 H9 J2 J3 J5 J6 J7 J9 JA JC L3 L4 L5 L8 ...

Page 130: ...ET button BS2 38 times 8811881 3 Press the RETURN button BS3 once 8111119 Factory setting 4 Press the SET button BS2 once 8111191 5 Press the RETURN button BS3 twice 8111111 6 Press the MODE button BS1 once 1181111 LED display 8 ON 1 OFF 9 Blink Step H1P H7P 1 Press the MODE button BS1 for 5 seconds or more 8111111 2 Press the SET button BS2 39 times 8811888 3 Press the RETURN button BS3 once 8111...

Page 131: ...111111 6 Press the MODE button BS1 once 1181111 LED display 8 ON 1 OFF 9 Blink Step H1P H7P 1 Press and hold the MODE button BS1 for 5 sec or more 8111111 2 Press the SET button BS2 38 times 8811881 3 Press the RETURN button BS3 once 8111191 4 Press the SET button BS2 once 8111119 Factory setting 5 Press the RETURN button BS3 twice 8111111 6 Press the MODE button BS1 once 1181111 LED display 8 ON ...

Page 132: ...utdoor unit 2 operation of setting mode 2 to OFF LED display 8 ON 1 OFF 9 Blink H1P H7P H8P Outdoor unit 1 1181111 8 Outdoor unit 2 1111111 9 LED display 8 ON 1 OFF 9 Blink Step H1P H7P 1 Press and hold the MODE button BS1 for 5 sec or more 8111111 2 Press the SET button BS2 38 times 8811881 3 Press the RETURN button BS3 once 8111191 4 Press the SET button BS2 once 8111119 Factory setting 5 Press ...

Page 133: ...Field Settings SiUS34 801A_b 118 VRVIII R 410A Heat Pump 60Hz ...

Page 134: ...General 185 5 1 Symbol 185 5 2 Operation Mode 187 6 Basic Control 188 6 1 Normal Operation 188 6 2 Compressor PI Control 189 6 3 Electronic Expansion Valve PI Control 193 6 4 Step Control of Outdoor Unit Fans 194 6 5 Outdoor Unit Fan Control in Cooling Operation 194 6 6 Heat Exchanger Control 195 7 Special Control 197 7 1 Startup Control 197 7 2 Large Capacity Start Up Control Heating 198 7 3 Oil ...

Page 135: ...8 9 1 Backup Operation 218 9 2 Demand Operation 218 9 3 Heating Operation Prohibition 218 10 Test Operation 219 10 1 Installation Process 219 10 2 Procedure and Outline 219 10 3 Operation when Power is Turned On 238 11 Outdoor Unit PC Board Layout 240 12 Field Setting 241 12 1 Field Setting from Outdoor Unit 241 ...

Page 136: ...t Soft Start Soft Start Fan Type Propeller Fan Propeller Fan Propeller Fan Motor Output kW 0 35 2 0 35 2 0 35 2 Air Flow Rate cfm 6 700 6 700 7 410 Drive Direct Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe in mm φ 3 8 9 5 mm C1220T Brazing Connection φ 3 8 9 5 mm C1220T Brazing Connection φ1 2 12 7 mm C1220T Brazing Connection Suction Gas Pipe in mm φ3 4 19 1 mm C1220T Brazing Conn...

Page 137: ...g Method Soft Start Soft Start Soft Start Fan Type Propeller Fan Propeller Fan Propeller Fan Motor Output kW 0 75 1 0 75 1 0 75 1 0 75 1 0 75 1 0 75 1 Air Flow Rate cfm 6 350 6 350 6 350 6 530 6 350 7 060 Drive Direct Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe 3 in mm φ1 2 12 7 mm C1220T Brazing Connection φ5 8 15 8 mm C1220T Brazing Connection φ5 8 15 8 mm C1220T Brazing Connect...

Page 138: ...olutions r p m 2900 6300 2 2900 6300 2 Motor Output Number of Units kW 2 2 4 5 1 3 5 4 5 1 3 5 4 5 2 Starting Method Soft Start Soft Start Fan Type Propeller Fan Propeller Fan Motor Output kW 0 75 1 0 75 1 0 75 1 0 75 1 Air Flow Rate cfm 6 530 7 060 7 060 7 060 Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe 3 in φ5 8 15 8 mm C1220T Brazing Connection φ5 8 15 8 mm C1220T Brazing Conne...

Page 139: ...tart Soft Start Soft Start Fan Type Propeller Fan Propeller Fan Propeller Fan Motor Output kW 0 35 2 0 35 2 0 35 2 Air Flow Rate cfm 6 700 6 700 7 410 Drive Direct Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe in mm φ 3 8 9 5 mm C1220T Flare Connection φ 3 8 9 5 mm C1220T Flare Connection φ1 2 12 7 mm C1220T Flare Connection Suction Gas Pipe in mm φ3 4 19 1 mm C1220T Brazing Connect...

Page 140: ...Motor Output Number of Units kW 3 8 3 8 7 1 1 8 4 3 9 1 7 1 1 8 4 6 1 1 Starting Method Direct on Line Soft Start Soft Start Fan Type Propeller Fan Propeller Fan Propeller Fan Motor Output kW 0 75 2 0 75 1 0 75 1 0 75 1 0 75 1 Air Flow Rate cfm 8 299 6 350 6 530 6 350 7 060 Drive Direct Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe in mm φ1 2 12 7 mm C1220T Flare Connection φ5 8 15 ...

Page 141: ...azing Connection High and Low Pressure Gas Pipe 3 in mm φ1 1 8 28 6 mm C1220T Brazing Connection φ1 1 8 28 6 mm C1220T Brazing Connection Pressure Equalizer Tube in mm φ3 4 19 1 mm C1220T Brazing Connection φ3 4 19 1 mm C1220T Brazing Connection Mass Lbs kg 560 560 254 254 kg 560 560 254 254 kg Safety Devices High Pressure Switch Fan Driver Overload Protector Overcurrent Relay Inverter Overload Pr...

Page 142: ...attached pipe and the field pipe must be brazed Connection Range for BS Unit Mass Lbs kg 26 11 8 kg 26 11 8 kg Standard Accessories Installation Manual Attached Pipe Insulation Pipe Cover Clamps Installation Manual Attached Pipe Insulation Pipe Cover Clamps Drawing No 4D058233A 4D058234A Components Outdoor unit BS unit model name Total capacity of connectable indoor units Number of connectable ind...

Page 143: ...itch For INV Functions when pressure increases to stop operation and avoid high pressure increase in the event of a fault 23 S2PH HP pressure switch For STD 24 Pressure regulating valve Liquid pipe Used when pressure increases to prevent any damage on components caused by pressure increase in transport or storage 25 Pressure regulating valve Refrigerant regulator Used when pressure increases to pr...

Page 144: ... S1PH Suction Pipe Dual Pressure Gas Pipe Liquid Pipe Subcool Heat Exchanger 2 Subcool Heat Exchanger 1 Heat Exchanger 2 Heat Exchanger 1 STD S2PH Stop Valve Stop Valve Stop Valve Gauge Port Left Gauge Port 19 18 46 48 50 26 45 47 23 34 29 42 40 24 26 38 36 39 35 37 25 27 30 22 33 28 31 32 S1NPH S2NPL 8 11 6 4 2 9 20 17 7 10 5 3 13 12 1 21 15 14 16 ...

Page 145: ...ns when pressure increases to stop operation and avoid high pressure increase in the event of a fault 24 Pressure regulating valve Liquid pipe Used when pressure increases to prevent any damage on components caused by pressure increase in transport or storage 25 Pressure regulating valve Refrigerant regulator Used when pressure increases to prevent any damage on components caused by pressure incre...

Page 146: ...Pipe Suction Pipe Stop Valve Stop Valve Stop Valve Gauge Port 50 26 48 8 45 46 18 19 23 33 28 2 41 40 26 39 37 10 35 36 20 12 22 31 3 7 38 17 5 13 25 27 30 16 32 1 21 29 14 15 28 24 9 47 6 4 11 Liquid Pipe INV1 INV2 Right Left S2PH S1NPH S2NPL S1PH Gauge Port Subcool Heat Exchanger 2 Heat Exchanger 2 Subcool Heat Exchanger 1 Heat Exchanger 1 ...

Page 147: ...pressure increase in the event of a fault 22 Pressure regulating valve Liquid pipe Used when pressure increases to prevent any damage on components caused by pressure increase in transport or storage 23 Pressure regulating valve Refrigerant regulator Used when pressure increases to prevent any damage on components caused by pressure increase in transport or storage 24 Subcooling heat exchanger App...

Page 148: ...overy 60Hz 133 REMQ72PYDN PTJU S1NPH INV S1PH 7 S2NPL Stop Valve Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Suction Pipe Gauge Port 22 15 36 35 37 23 11 38 24 39 4 17 10 16 8 31 26 19 18 32 1 14 13 12 25 29 30 6 40 9 ...

Page 149: ...pressure increase in the event of a fault 20 S2PH HP pressure switch For STD compressor 1 22 Pressure regulating valve Liquid pipe Used when pressure increases to prevent any damage on components caused by pressure increase in transport or storage 23 Pressure regulating valve Refrigerant regulator Used when pressure increases to prevent any damage on components caused by pressure increase in trans...

Page 150: ...135 REMQ96 120PYDN PTJU 40 7 9 6 Stop Valve Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Suction Pipe Gauge Port 22 15 36 35 37 23 11 38 24 39 4 10 17 16 8 31 26 19 20 18 32 33 14 1 2 27 13 12 25 29 30 INV S1 S1NPH S1PH S2PH S2NPL ...

Page 151: ...pansion valve EVHS Y2E Opens while in heating operation or all indoor units are in cooling operation Max 480pls 4 Electronic expansion valve EVLS Y3E Opens while in cooling operation Max 480pls 5 Electronic expansion valve EVSC Y1E In simultaneous cooling and heating operation it is used to subcool liquid refrigerants when an indoor unit downstream of this BS unit is in heating operation Max 480pl...

Page 152: ...REYQ72P 96P 120P Plan Front View Note For reference numbers refer to page 128 19 18 11 23 10 17 34 33 12 22 16 13 14 15 4 36 46 47 48 42 45 6 8 9 2 40 7 3 5 38 20 21 31 32 37 39 1 35 COIL FOR EXPANSION VALVE COIL FOR EXPANSION VALVE COIL FOR EXPANSION VALVE COIL FOR EXPANSION VALVE COIL FOR EXPANSION VALVE ...

Page 153: ...S34 801A_b 138 VRVIII R 410A Heat Recovery 60Hz 3 2 REYQ144PTJU Plan Front View Note For reference numbers refer to page 130 19 18 11 23 10 17 33 32 22 12 16 15 13 14 36 46 47 48 41 45 4 9 6 8 2 35 1 31 39 37 30 21 20 38 5 3 7 40 ...

Page 154: ...arts Layout VRVIII R 410A Heat Recovery 60Hz 139 3 3 REMQ72P Plan Front View Note For reference numbers refer to page 132 REFRIGERANT REGULATOR 11 7 9 25 19 32 31 10 8 18 40 38 16 15 36 37 39 35 12 13 4 6 17 30 14 1 GROUND WIRE ...

Page 155: ...01A_b 140 VRVIII R 410A Heat Recovery 60Hz 3 4 REMQ96P 120P Plan Front View Note For reference number refer to page 134 REFRIGERANT REGULATOR 11 7 9 25 20 19 33 31 31 10 8 18 40 38 ZGROUND WIRE 16 15 36 37 39 35 12 13 4 6 17 30 14 2 1 ...

Page 156: ...Tf Ta INV Suction Pipe Liquid Pipe Equalizing Pipe Refrigerant Regulator Equalizing Pipe Stop Valve Stop Valve Stop Valve Left Right One Body Type High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure EVH EVL EVHS EVLS EVSC EVH EVL EVHS EVLS EVSC Indoor Unit Cooling Unit Thermostat ON Thermostat OFF Cooling Unit EVH EVL EVHS EVLS EVSC Cooling Unit Su...

Page 157: ...as Pipe Liquid Pipe BS Unit Suction Pipe Fan OFF Indoor unit Operation Fan ON ON Fan LL ON 192pls 192pls OFF S1NPH S2NPL HPS EVM EVT 20SB Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL SVO SVG EVJ HPS EVM EVT Tdi Tb Tg Tsc Tsh 20SA SVE TS_A Tf Ta STD INV High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Stop Valve Stop Valve Stop Valve Left Right ...

Page 158: ...g Unit Dual Pressure Gas Pipe Liquid Pipe BS Unit Suction Pipe 192pls S1NPH S2NPL INV HPS EVM EVT 20SB Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL SVO SVG EVJ STD HPS EVM EVT Tdi Tb Tg Tsc Tsh 20SA SVE TS_A Tf Ta High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Stop Valve Stop Valve Stop Valve Left Right One Body Type Suction Pipe Liquid Pipe ...

Page 159: ...ressure Gas Pipe Liquid Pipe BS Unit Suction Pipe S1NPH S2NPL HPS EVM EVT 20SB Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL SVO SVG EVJ HPS EVM EVT Tdi Tb Tg Tsc Tsh 20SA SVE TS_A Tf Ta STD INV High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Stop Valve Stop Valve Stop Valve Left Right One Body Type Suction Pipe Liquid Pipe Equalizing Pipe Refr...

Page 160: ... EVH EVL EVHS EVLS EVSC Indoor Unit Heating Unit BS Unit Suction Pipe Fan LL ON S1NPH INV HPS EVM EVT 20SB Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL SVO SVG EVJ HPS EVM EVT Tdi Tb Tg Tsc Tsh 20SA SVE TS_A Tf Ta S2NPL STD High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Stop Valve Stop Valve Stop Valve Left Right One Body Type Suction Pipe Li...

Page 161: ...quid Pipe BS Unit Suction Pipe EVH EVL EVHS EVLS EVSC Heating Unit S1NPH S2NPL INV HPS EVM EVT 20SB Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL SVO SVG EVJ HPS EVM EVT Tdi Tb Tg Tsc Tsh 20SA SVE TS_A Tf Ta STD High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Stop Valve Stop Valve Stop Valve Left Right One Body Type Suction Pipe Liquid Pipe Equ...

Page 162: ...s Pipe Dual Pressure Gas Pipe Liquid Pipe Liquid Pipe BS Unit BS Unit Suction Pipe Suction Pipe 0pls 160 pls S1NPH S2NPL HPS EVM EVT 20SB Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL SVO SVG EVJ HPS EVM EVT Tdi Tb Tg Tsc Tsh 20SA SVE TS_A Tf Ta STD INV Stop Valve High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Stop Valve Stop Valve Left Right ...

Page 163: ...sure Gas Pipe Dual Pressure Gas Pipe Liquid Pipe Liquid Pipe BS Unit BS Unit Suction Pipe Suction Pipe 160 pls 0pls S1NPH INV HPS EVM EVT 20SB Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL SVO SVG EVJ STD HPS EVM EVT Tdi Tb Tg Tsc Tsh 20SA SVE TS_A Tf Ta S2NPL High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Stop Valve Stop Valve Left Right One ...

Page 164: ...Liquid Pipe Equalizing Pipe Refrigerant Regulator Equalizing Pipe Stop Valve Stop Valve Stop Valve Left Right One Body Type High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure EVH EVL EVHS EVLS EVSC EVH EVL EVHS EVLS EVSC Indoor Unit Cooling Unit Thermostat ON Thermostat OFF Cooling Unit EVH EVL EVHS EVLS EVSC Cooling Unit Suction Pipe Dual Pressur...

Page 165: ...Pipe Liquid Pipe BS Unit Suction Pipe Fan OFF Indoor unit Operation Fan ON ON Fan LL ON 192pls 192pls OFF S1NPH S2NPL HPS EVM EVT 20SB Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL SVO SVG EVJ HPS EVM EVT Tdi Tb Tg Tsc Tsh 20SA SVE TS_A Tf Ta INV2 INV1 High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Stop Valve Stop Valve Stop Valve Left Right O...

Page 166: ...nit Dual Pressure Gas Pipe Liquid Pipe BS Unit Suction Pipe 192pls S1NPH S2NPL INV1 HPS EVM EVT 20SB Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL SVO SVG EVJ INV2 HPS EVM EVT Tdi Tb Tg Tsc Tsh 20SA SVE TS_A Tf Ta High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Stop Valve Stop Valve Stop Valve Left Right One Body Type Suction Pipe Liquid Pipe E...

Page 167: ...sure Gas Pipe Liquid Pipe BS Unit Suction Pipe S1NPH S2NPL HPS EVM EVT 20SB Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL SVO SVG EVJ HPS EVM EVT Tdi Tb Tg Tsc Tsh 20SA SVE TS_A Tf Ta INV2 INV1 High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Stop Valve Stop Valve Stop Valve Left Right One Body Type Suction Pipe Liquid Pipe Equalizing Pipe Refri...

Page 168: ...H EVL EVHS EVLS EVSC Indoor Unit Heating Unit BS Unit Suction Pipe Fan LL ON S1NPH INV1 HPS EVM EVT 20SB Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL SVO SVG EVJ HPS EVM EVT Tdi Tb Tg Tsc Tsh 20SA SVE TS_A Tf Ta S2NPL INV2 High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Stop Valve Stop Valve Stop Valve Left Right One Body Type Suction Pipe Liq...

Page 169: ... Pipe BS Unit Suction Pipe EVH EVL EVHS EVLS EVSC Heating Unit S1NPH S2NPL INV1 HPS EVM EVT 20SB Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL SVO SVG EVJ HPS EVM EVT Tdi Tb Tg Tsc Tsh 20SA SVE TS_A Tf Ta INV2 High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Stop Valve Stop Valve Stop Valve Left Right One Body Type Suction Pipe Liquid Pipe Equal...

Page 170: ...ipe Dual Pressure Gas Pipe Liquid Pipe Liquid Pipe BS Unit BS Unit Suction Pipe Suction Pipe 0pls 160 pls S1NPH S2NPL HPS EVM EVT 20SB Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL SVO SVG EVJ HPS EVM EVT Tdi Tb Tg Tsc Tsh 20SA SVE TS_A Tf Ta INV2 INV1 Stop Valve High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Stop Valve Stop Valve Left Right O...

Page 171: ... Gas Pipe Dual Pressure Gas Pipe Liquid Pipe Liquid Pipe BS Unit BS Unit Suction Pipe Suction Pipe 160 pls 0pls S1NPH INV1 HPS EVM EVT 20SB Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL SVO SVG EVJ INV2 HPS EVM EVT Tdi Tb Tg Tsc Tsh 20SA SVE TS_A Tf Ta S2NPL High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Stop Valve Stop Valve Left Right One Bo...

Page 172: ...VP 20SA SVE Tf SVT SVO SVL SVG EVJ EVM EVT Tb Tg Tsc TS_A Tsh INVFAN TL 20SA SVE Tf EVJ SVO SVL SVG SVP S2NPL S1NPH Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas H...

Page 173: ... Theromstat ON EVH EVL EVHS EVLS EVSC Heating Unit EVH EVL EVHS EVLS EVSC Heating Unit INV HPS Tdi SVT S2NPL Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas High tem...

Page 174: ...Operation ON Theromstat ON Operation ON Theromstat OFF EVH EVL EVHS EVLS EVSC Heating Unit EVH EVL EVHS EVLS EVSC Heating Unit Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pre...

Page 175: ... OFF EVH EVL EVHS EVLS EVSC Cooling Unit EVH EVL EVHS EVLS EVSC Cooling Unit Operation ON Theromstat ON Operation OFF Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas...

Page 176: ...ssure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Liquid Pipe Stop Valve Gauge Port REMQ72PYDN Multi 6ton REMQ72PYDN Multi 6ton EVH EVL EVHS EVLS EVSC BS Unit Indoor Unit Heating Uni...

Page 177: ...Theromstat ON Operation ON Theromstat OFF Operation ON Theromstat ON EVH EVL EVHS EVLS EVSC Heating Unit EVH EVL EVHS EVLS EVSC Heating Unit 224pls Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High...

Page 178: ...re Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Liquid Pipe Stop Valve Gauge Port REMQ72PYDN Multi 6ton REMQ72PYDN Multi 6ton In operation of defrosting EVH EVL EVHS EVLS EVSC BS Unit...

Page 179: ...re Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Liquid Pipe Stop Valve Gauge Port REMQ72PYDN Multi 6ton REMQ72PYDN Multi 6ton In operation of defrosting EVH EVL EVHS EVLS EVSC BS Unit...

Page 180: ...A SVE Tf SVT SVO SVL SVG EVJ INV HPS EVM EVT Tdi Tb Tg Tsc TS_A Tsh INVFAN TL S1 HPS Tds1 20SA SVE Tf EVJ SVO SVL SVG SVP SVT S2NPL S1NPH S2NPL Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High tem...

Page 181: ...ation OFF Operation ON Theromstat OFF Operation ON Theromstat ON EVH EVL EVHS EVLS EVSC Heating Unit EVH EVL EVHS EVLS EVSC Heating Unit Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperatur...

Page 182: ...t Operation ON Theromstat ON Operation ON Theromstat ON Operation ON Theromstat OFF EVH EVL EVHS EVLS EVSC Heating Unit EVH EVL EVHS EVLS EVSC Heating Unit Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Va...

Page 183: ...Unit Operation ON Theromstat OFF EVH EVL EVHS EVLS EVSC Cooling Unit EVH EVL EVHS EVLS EVSC Cooling Unit Operation ON Theromstat ON Operation OFF Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High t...

Page 184: ...ion Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Liquid Pipe Stop Valve Gauge Port REMQ72P Multi 6ton REMQ96 120P Multi 8 10ton EVH EVL EVHS EVLS EVSC BS...

Page 185: ...it Cooling Unit Operation ON Theromstat ON Operation ON Theromstat OFF Operation ON Theromstat ON EVH EVL EVHS EVLS EVSC Heating Unit EVH EVL EVHS EVLS EVSC Heating Unit 224pls Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pres...

Page 186: ...n Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Liquid Pipe Stop Valve Gauge Port REMQ72P Multi 6ton REMQ96 120P Multi 8 10ton In operation of defrosting ...

Page 187: ... Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Liquid Pipe Stop Valve Gauge Port REMQ72P Multi 6ton REMQ96 120P Multi 8 10ton In operation of defrosting E...

Page 188: ...G EVJ INV HPS EVM EVT Tdi Tb Tg Tsc TS_A Tsh INVFAN TL S1 HPS Tds1 20SA SVE Tf EVJ SVO SVL SVG SVP SVT S1NPH S2NPL Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas Hi...

Page 189: ...stat OFF Operation ON Theromstat ON EVH EVL EVHS EVLS EVSC Heating Unit EVH EVL EVHS EVLS EVSC Heating Unit Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas High temp...

Page 190: ...on ON Theromstat OFF EVH EVL EVHS EVLS EVSC Heating Unit EVH EVL EVHS EVLS EVSC Heating Unit INV HPS Tdi S1 HPS Tds1 SVT S2NPL Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pre...

Page 191: ... Unit EVH EVL EVHS EVLS EVSC Cooling Unit Operation ON Theromstat ON Operation OFF INV HPS Tdi S1 HPS Tds1 SVT S2NPL Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas ...

Page 192: ...sure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Liquid Pipe Stop Valve Gauge Port REMQ96 120P Multi 8 10ton REMQ120P Multi 10ton EVH EVL EVHS EVLS EVSC BS Unit Indoor Unit Heating U...

Page 193: ...Theromstat ON Operation ON Theromstat OFF Operation ON Theromstat ON EVH EVL EVHS EVLS EVSC Heating Unit EVH EVL EVHS EVLS EVSC Heating Unit 224pls Liquid Pipe Stop Valve Equalizing Pipe Stop Valve Suction Pipe Stop Valve Dual Pressure Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High...

Page 194: ...re Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Liquid Pipe Stop Valve Gauge Port REMQ96 120P Multi 8 10ton REMQ120P Multi 10ton In operation of defrosting EVH EVL EVHS EVLS EVSC BS U...

Page 195: ...re Gas Pipe Stop Valve Refrigerant Regulator Gauge Port Equalizing Pipe Stop Valve Suction Pipe Stop Valve Refrigerant Regulator Dual Pressure Gas Pipe Stop Valve High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure Liquid Pipe Stop Valve Gauge Port REMQ96 120P Multi 8 10ton REMQ120P Multi 10ton In operation of defrosting EVH EVL EVHS EVLS EVSC BS U...

Page 196: ...of refrigerant Discharge refrigerant from refrigerant regulator by opening of SVC when the load of the outdoor unit is large Suction Pipe Liquid Pipe Equalizing Pipe Refrigerant Regulator Right S1NPH S2NPL S1PH EVM EVT Tdi Tb Tg Tsc Tsh TL SVP 20SA SVE TS_A Tf SVL Pressure regulating valve SVO SVG Ta INV Pressure regulating valve Suction Pipe Liquid Pipe Equalizing Pipe Refrigerant Regulator Right...

Page 197: ... Heat Recovery 60Hz 3 Pressure regulating valve Refrigerant regulator The circuit will be closed when SVL SVO SVG are all closed In this case the increased pressure in the refrigerant regulator will be transferred to the liquid refrigerant pipe side to regulate the pressure ...

Page 198: ...e the system pressure Finally EVH and EVHS are opened and the electric expansion valve of the indoor unit is opened to start the operation as a heating circuit In cooling operation In equalization To heating operation BS Unit Indoor Unit Cooling Unit EVH EVL EVHS EVLS EVSC Suction Pipe Dual Pressure Gas Pipe Liquid Pipe BS Unit Indoor Unit Close EVH Close EVL Close EVHS Open EVLS Close EVSC Suctio...

Page 199: ... EVL and EVLS are opened and the electric expansion valve of the indoor unit is opened to start the operation as a cooling circuit In heating operation In equalization To cooling operation BS Unit Indoor Unit Heating Unit EVH EVL EVHS EVLS EVSC Suction Pipe Dual Pressure Gas Pipe Liquid Pipe BS Unit Indoor Unit In equalization EVH Close Close EVL Close EVHS Close EVLS Open EVSC Suction Pipe Dual P...

Page 200: ...sion valve for subcooling heat exchanger Y5E Subcooling2 EVJ Y4E Y2E Electronic expansion valve at the refrigerant charge port HTDi Value of INV compressor discharge pipe temperature compensated with outdoor air temperature HTDs Value of STD compressor discharge pipe temperature compensated with outdoor air temperature Pc S1NPH S1NPH Value detected by high pressure sensor Pe S2NPL S2NPL Value dete...

Page 201: ...R15T Liquid pipe2 Tsh R5T Gas pipe1 R5T Temperature detected with the subcooling heat exchanger outlet thermistor R13T Gas pipe2 Tl R6T Liquid pipe1 R6T Liquid pipe temperature detected with the liquid pipe thermistor R14T Liquid pipe2 Tsc R9T R9T Temperature of liquid pipe between liquid shutoff valve and subcooled heat exchanger Tc High pressure equivalent saturation temperature TcS Target tempe...

Page 202: ...tion mode changeover Malfunction Standby Thermostat ON After completion of startup control Cooling startup Heating startup Thermostat ON Operation mode changeover No Yes Mode changeover Operation mode changeover Malfunction Standby Indoor unit stop or thermostat OFF Malfunction Standby Malfunction Standby Indoor unit stop or thermostat OFF Indoor unit stop or thermostat OFF Oil return Defrost and ...

Page 203: ... Y3E Electronic expansion valve Subcooling EVT Y2E Y3E PI control PI control PI control Y5E Electronic expansion valve Refrigerant charge EVJ Y4E Y2E 80 pls 80 pls 80 pls Four way valve Heat exchanger switch 20SA Y2S Y3S OFF Outdoor unit heat exchanger Condenser OFF Outdoor unit heat exchanger Evaporator ON Outdoor unit heat exchanger Condenser OFF Outdoor unit heat exchanger Evaporator ON Y9S Fou...

Page 204: ...ic expansion valve EVL Y5E 760 pls fully opened 0 pls Electronic expansion valve EVHS Y2E 480 pls fully opened 480 pls fully opened Electronic expansion valve EVLS Y3E 480 pls fully opened 0 pls Electronic expansion valve EVSC Y1E 0 pls 0 pls simultaneous Cooling Heating operation PI control Controls compressor capacity to adjust Te to achieve target value TeS Te Low pressure equivalent saturation...

Page 205: ...ubject to information in Operating Priority and Rotation of REYQ72P 96P 120P STD1 INV No 2 No 1 INV Inverter compressor STD1 Standard compressor 1 STD2 Standard compressor 2 Each compressor operates in the following order of priority In the case of multi outdoor unit system each compressor operates in any of Pattern 1 through Pattern 3 according to the rotation of outdoor units Pattern 1 Pattern 2...

Page 206: ...z 16 166Hz 17 176Hz 18 188Hz 19 202Hz 20 210Hz 21 52Hz ON 22 62Hz ON 23 68Hz ON 24 74Hz ON 25 80Hz ON 26 88Hz ON 27 96Hz ON 28 104Hz ON 29 116Hz ON 30 124Hz ON 31 132Hz ON 32 144Hz ON 33 158Hz ON 34 176Hz ON 35 188Hz ON 36 202Hz ON 37 210Hz ON Initial step REYQ144PTJU 12 ton To increase Step No STEP No unit 1 INV unit 2 INV 1 52Hz 52Hz 2 56Hz 56Hz 3 62Hz 62Hz 4 66Hz 66Hz 5 70Hz 70Hz 6 74Hz 74Hz 7 ...

Page 207: ...2Hz 19 96Hz 96Hz 20 104Hz 104Hz 21 110Hz 110Hz 22 116Hz 116Hz 23 124Hz 124Hz 24 132Hz 132Hz 25 52Hz 52Hz ON 26 62Hz 62Hz ON 27 68Hz 68Hz ON 28 74Hz 74Hz ON 29 80Hz 80Hz ON 30 88Hz 88Hz ON 31 96Hz 96Hz ON 32 104Hz 104Hz ON 33 116Hz 116Hz ON 34 124Hz 124Hz ON 35 132Hz 132Hz ON 36 144Hz 144Hz ON 37 158Hz 158Hz ON 38 176Hz 176Hz ON 39 188Hz 188Hz ON 40 202Hz 202Hz ON 41 210Hz 210Hz ON REYQ144PYDN 6 6 ...

Page 208: ...2Hz 62Hz 4 66Hz 66Hz 5 70Hz 70Hz 6 74Hz 74Hz 7 80Hz 80Hz 8 88Hz 88Hz 9 92Hz 92Hz 10 96Hz 96Hz 11 104Hz 104Hz 12 110Hz 110Hz 13 116Hz 116Hz 14 124Hz 124Hz 15 132Hz 132Hz 16 144Hz 144Hz 17 158Hz 158Hz 18 166Hz 166Hz 19 176Hz 176Hz 20 80Hz 80Hz ON1 21 88Hz 88Hz ON1 22 96Hz 96Hz ON1 23 104Hz 104Hz ON1 24 116Hz 116Hz ON1 25 124Hz 124Hz ON1 26 132Hz 132Hz ON1 27 88Hz 88Hz ON2 28 96Hz 96Hz ON2 29 104Hz 1...

Page 209: ... which vary when the system is set to high static pressure or capacity precedence mode 6 5 Outdoor Unit Fan Control in Cooling Operation While in cooling operation if the outdoor temperature is low this mode provides high pressure control using the outdoor unit fan to retain appropriate liquid pressure thus ensuring refrigerant SH Tg Te SH Evaporator outlet superheated degree F Tg Suction pipe tem...

Page 210: ...ep on outdoor unit fan PI control PI control Lapse of 20 sec Lapse of 20 sec Fan step 7 Pc 446 6psi Pc 461 1psi Fan step 8 Pc 475 6psi Fan step 9 PI control PI control PI control Note 1 GR is a numeric value representing the current balanced condition and calculated from target condensing temperature target evaporating temperature current condensing temperature and current evaporating temperature ...

Page 211: ...and current evaporating temperature Note 2 On the system with two outdoor units if there is no step for the destination of transition that step will be skipped Outdoor unit 1 2 Condenser Condenser Outdoor unit 1 2 Condenser Condenser Outdoor unit 1 2 Condenser Condenser Outdoor unit 1 2 Condenser Evaporator Outdoor unit 1 2 Evaporator Outdoor unit 1 2 Evaporator Evaporator Outdoor unit 1 2 Evapora...

Page 212: ...r 2 M2C M2C Outdoor unit fan 1 M1F M1F STEP4 Ta 68 F OFF Ta 68 F STEP4 1step 15 sec When Pc_max 313 2 psi 1step 15 sec When Pc_max 256 5 psi Outdoor unit fan 2 M2F M2F Electronic expansion valve Main EVM Y1E Y3E Y1E 0 pls 1375 pls 1375 pls Electronic expansion valve Subcooling EVT Y2E Y5E Y3E 0 pls 0 pls 0 pls Electronic expansion valve Refrigerant charge EVJ Y4E Y2E 80 pls 80 pls 80 pls Four way ...

Page 213: ...375 pls Electronic expansion valve Subcooling EVT Y2E Y5E Y3E 0 pls 0 pls 0 pls Electronic expansion valve Refrigerant charge EVJ Y4E Y2E 80 pls 80 pls 80 pls Four way valve Heat exchanger switch 20SA Y2S Y9S Y3S When outdoor heat exchanger is evaporator ON When outdoor heat exchanger is condenser OFF When outdoor heat exchanger is evaporator ON When outdoor heat exchanger is condenser OFF When ou...

Page 214: ...Oil Return Operation This function is used to recover refrigerant oil that flows out from the compressor to the system side by conducting oil return operation in order to prevent the compressor from running out of refrigerant oil 7 3 1 Cooling Oil Return Operation Start conditions Referring to the following conditions start cooling oil return operation Integral oil rise rate is reached to specifie...

Page 215: ...t were used before oil return operation Compressor 2 M2C M2C Outdoor unit fan 1 M1F M1F Cooling fan control Cooling fan control Outdoor unit fan 2 M2F M2F Four way valve for heat exchanger selection 20SA Y2S Y9S Y3S OFF OFF Four way valve for high and low pressure gas pipe selection 20SB Y8S Y2S ON ON Electronic expansion valve main EVM Y1E Y3E Y1E 1375pls 1375pls Electronic expansion valve subcoo...

Page 216: ... setting Motorized valve Thermo ON unit Normal opening degree Unit not in operation 192pls Thermo OFF unit Normal opening degree for forced thermostat ON Cooling BS unit actuator Elect symbol Oil return operation Electronic expansion valve EVH Y4E 600pls Electronic expansion valve EVL Y5E 760pls Electronic expansion valve EVHS Y2E 480pls Electronic expansion valve EVLS Y3E 480pls Electronic expans...

Page 217: ...irculation rate required for oil return operation turn ON the STD compressor every 10 seconds up to 3 units at maximum Compressor 2 M2C M2C Outdoor unit fan 1 M1F M1F When outdoor unit heat exchanger is condenser the fan will run under cooling fan control When outdoor unit heat exchanger is evaporator the fan will run at the fan step 7 or 8 Outdoor unit fan 2 M2F M2F Electronic expansion valve mai...

Page 218: ...r Elect symbol Oil return operation Electronic expansion valve EVH Y4E 0pls Electronic expansion valve EVL Y5E 760pls Electronic expansion valve EVHS Y2E 0pls 60pls when Pc_max 413 25psi Electronic expansion valve EVLS Y3E 480pls Electronic expansion valve EVSC Y1E PI control Heating BS unit actuator Elect symbol Oil return operation Electronic expansion valve EVH Y4E 760pls Electronic expansion v...

Page 219: ...valve gas discharge pipe of refrigerant regulator SVG Y1S Y1S 0pls 0pls Solenoid valve drain pipe of refrigerant regulator SVO Y7S Y7S 0pls 0pls Solenoid valve discharge pipe of refrigerant regulator SVT Y6S Y8S 0pls 0pls End conditions REYP72 to 120P by unit REYP144PTJU 6 min and 30 sec Tb 57 8 F continues for a period of 90 consecutive sec Pc_max 440 8psi REMQ72 to 96P by unit 5 min and 30 sec T...

Page 220: ...Y1S 0pls 0pls Solenoid valve drain pipe of refrigerant regulator SVO Y7S Y7S 0pls 0pls Solenoid valve discharge pipe of refrigerant regulator SVT Y6S Y8S 0pls 0pls Cooling indoor unit actuator Defrost operation Fan Thermo ON unit Remote controller setting Unit not in operation OFF Thermo OFF unit Remote controller setting Motorized valve Thermo ON unit Normal opening degree Unit not in operation 0...

Page 221: ... M2C M2C Outdoor unit fan 1 M1F M1F Fan control Fan control Outdoor unit fan 2 M2F M2F Electronic expansion valve Main EVM Y1E Y3E Y1E 1375 pls 1375 pls Electronic expansion valve Subcooling EVT Y2E Y5E Y3E 0 pls 0 pls Electronic expansion valve Refrigerant charge EVJ Y4E Y2E 80 pls 80 pls Four way valve Heat exchanger switch 20SA Y2S Y9S Y3S OFF OFF Four way valve High low pressure gas pipe switc...

Page 222: ...t charge EVJ Y4E Y2E 80 pls 80 pls Four way valve Heat exchanger switch 20SA Y2S Y9S Y3S When outdoor heat exchanger is evaporator ON When outdoor heat exchanger is condenser OFF When outdoor heat exchanger is evaporator ON When outdoor heat exchanger is condenser OFF Four way valve High low pressure gas pipe switch 20SB Y8S Y2S OFF OFF Solenoid valve Main bypass SVE Y5S Y10S Y6S OFF OFF Solenoid ...

Page 223: ...lenoid valve Hot gas SVP Y4S Y5S OFF Solenoid valve Refrigerant regulator liquid pipe SVL Y3S Y4S OFF Solenoid valve Refrigerant regulator gas vent pipe SVG Y1S Y1S OFF Solenoid valve Refrigerant regulator exhaust pipe SVO Y7S Y7S OFF Solenoid valve Refrigerant regulator discharge pipe SVT Y6S Y8S OFF Ending conditions 2 min Actuator Symbol Elect symbol Operation REYQ REMQ REYQ72 144P REMQ72P REMQ...

Page 224: ...or liquid pipe SVL Y3S Y4S OFF Solenoid valve Refrigerant regulator gas vent pipe SVG Y1S Y1S OFF Solenoid valve Refrigerant regulator exhaust pipe SVO Y7S Y7S OFF Solenoid valve Refrigerant regulator discharge pipe SVT Y6S Y8S OFF Ending conditions Indoor unit thermostat is turned ON Item Judgment Criteria Malfunction Code 1 Abnormal low pressure level 10 15psi E4 2 Abnormal high pressure level 5...

Page 225: ...the system Normal Operation Pc_max 503 15psi Pc_max 514 75psi Pc_max 503 15psi Pc_max 469 8 psi Pc_max 527 8psi Upper limit compressor step max Max Step When occurring 3 times within 30 min HPS is activated without high pressure standby thus outputting the malfunction code E3 Upper limit compressor step 2 step down After 10 sec Current step maintained Upper limit compressor step 1 step up After 15...

Page 226: ... to protect compressors against the transient decrease of low pressure In cooling operation Because of common low pressure the following control is performed in the system Pc_max 426 3psi Pc_max 495 9psi Pc_max 479 95psi Pc_max 479 95psi Pc_max 527 8psi When occurring 3 times within 30 min HPS is activated without high pressure standby thus outputting the malfunction code E3 Normal Operation After...

Page 227: ..._min 21 75psi When occurring 4 times within 30 min the malfunction code E4 is output Normal Operation During the control of low pressure protection Low pressure standby Single type Compressor step of the present situation 0 5 Multi type 210Hz OFF upper Single type 8 12HP 52Hz OFF upper limit Multi type 52Hz OFF upper limit Hot gas solenoid valve 1 ON 1 Y4S for single system Y5S for multi system 6 ...

Page 228: ...pressor of single unit as well as multi units Pe_min 10 15psi Pe_min 24 65psi Pe_min 33 35psi Pe_min 24 65psi Pe_min 18 85psi Pe_min 39 15psi When occurring 4 times within 30 min the malfunction code E4 is displayed Normal Operation Upper limit compressor step max Max step Upper limit compressor step 2 step up Upper limit compressor step 1 step up During the control of low pressure protection Comp...

Page 229: ...i 239 F Tp 275 F or HTdi 212 F Tp 230 F HTdi 266 F or HTdi 275 F HTdi 248 F continues for 10 minutes or more or After 30 sec After 20 sec Frequency agreement Tp 275 F HTdi 230 F Tp 257 F 52Hz OFF HTdi 248 F continues for 90 seconds or more When occuring 3 times within 100 min the malfunction code F3 is output Normal operation INV upper limit step max Max step Discharge pipe temperature standby or ...

Page 230: ...4 7A 460V 26 5A 230V INV upper limit frequency max 210Hz Inverter current value 14 7A 460V 26 5A 230A INV Comp upper limit step 1 step up Inverter current value 14 7A 460V 26 5A 230V continues for 20 seconds Current status maintained 10 seconds INV Comp upper limit step 1 step down Inverter current value 14 7A 460V 26 5A 230V Inverter current 16 1 460V continues for 260 seconds Inverter current st...

Page 231: ... to overcurrent to the compressor resulting from failures of STD compressor such as locking Normal operation During the control of fin temperature protection Tfin 177 8 F INV upper limit frequency max 210Hz Tfin 183 2 F INV Comp upper limit step 1 step up Tfin 177 8 F continues for 3 minutes Current status maintained 10 seconds INV Comp upper limit step 1 step down Tfin 183 2 F Tfin 199 4 F Fin te...

Page 232: ...ion current value 15 0A STD compressor OFF for 30 min Demand to operate When occurring 3 times within 90 min the malfunction code E6 is output If the power supply is reset while in operation prohibition mode the prohibition timer will continue counting when the power supply is turned ON 34 230V 460 ...

Page 233: ...ng method refer to page 264 Details of operation Disable the compressor with the operation disable setting and only operate other compressors 9 2 Demand Operation In order to save the power consumption the capacity of outdoor unit is saved with control forcibly by using Demand 1 Setting or Demand 2 Setting To operate the unit with this mode additional setting of Continuous Demand Setting or extern...

Page 234: ...ne Use the following procedure to conduct the initial test operation after installation 3 Selection of Location 4 Inspecting and Handling the Unit 5 Placing the Unit 7 Field Wiring 6 Refrigerant Piping 8 Airtight Test and Vacuum Drying 9 Pipe Insulation 10 Checking of Device and Installation Conditions 11 Additional Refrigerant Charge and Check Operation 13 Test Run Operations which require the po...

Page 235: ...easure to be taken against decreased insulation resistance in the compressor If the compressor is left to stand for an extended period of time after the refrigerant charge with the stop valve open and the power supply OFF the refrigerant may be mixed in the compressor thus decreasing the insulation resistance Heat the compressor as shown on the right and then recheck the insulation Is the pipe siz...

Page 236: ...nt quantity HEAT RECOVER SYSTEM REFRIGERANT AMOUNT FOR EXCEEDING CONNECTION CAPACITY OF INDOOR UNIT MODEL NAME THE AMOUNT OF REFRIGERANT INDOOR CONNECTION CAPACITY MODEL NAME REYQ72 120PYDN 7 9 lb REYQ72 240PYDN REYQ72 240PTJU REYQ72 144PTJU REYQ144 192PYDN 2 2 lb MORE THAN 100 120 OR LESS 1 1 lb REYQ168 192PTJU REYQ216 240PYDN 3 3 lb MORE THAN 120 130 OR LESS 1 1 lb REYQ216 240PTJU R Total length...

Page 237: ...eck for excessive refrigerant refilling Automatic judgment of piping length Before starting the normal operation after the completion of check operations make sure indoor and outdoor units operate normally Turn outdoor unit and indoor unit power on Check the LED display of the outdoor unit PC board Conduct check operations Check for normal operation Make field settings with outdoor unit PC board L...

Page 238: ...dling the shutoff valve The refrigerant charge port is connected to unit pipe When shipped the unit contains the refrigerant so use caution when attaching the charge hose Gauge manifold Charge hose valve To prevent entry of any impurities and to ensure sufficient pressure resistance always use the special tools dedicated for R 410A Use a charge hose that has a pushing stick for connecting to the s...

Page 239: ...ation Insulation of pipes should be done after performing the steps described in Section 10 2 3 Air Tight Test And Vacuum Drying Always insulate the liquid piping the HP LP gas piping the gas piping the equalizer pipe between the outside units for the outdoor multi system and these pipe connections Failing to insulate the pipes may cause leaking or burns IMPORTANT BE SURE to insulate the HP LP gas...

Page 240: ...ou remove burrs in the knock holes See figure 27 and paint the edges and areas around the edges using the repair paint Insulation material Caulking etc figure 26 Piping lead out hole lid Open a knock hole at Block figure 27 Insulation material Caulking etc REYQ72 120PYDN REYQ72 144PTJU REMQ72 120PYDN REMQ72 120PTJU ...

Page 241: ...rom the factory but depending on the size and length of the piping when installed it may require additional charging For charging the additional refrigerant follow the procedure in this chapter and then carry out the check operation 10 2 6 1 Before working About the refrigerant tank Check whether the tank has a siphon pipe before charging and place the tank so that the refrigerant is charged in li...

Page 242: ...ightening Torque To close 1 Remove the cap and turn the shaft clockwise with the hexagon wrench 2 Securely tighten the valve until the shaft contacts the main body seal 3 Make sure to tighten the cap securely For the tightening torque refer to the table Tightening Torque Tightening torque 72P type 96P type 120P 144P type Liquid pipe shutoff valve φ3 8 The 120P type RXYQ144PTJU corresponds to the φ...

Page 243: ...on BS1 once at Setting Mode 1 H1P off and set the MONITOR MODE H1P Blinking j h h h h h h 2 Press the SET button BS2 the number of times until the LED display matches that at right For checking the number of outside units eight times j h h i h h h For checking the number of indoor units five times j h h h i h i 3 Press the RETURN button BS3 and read the number of units from the display of H2P thro...

Page 244: ...See Shutoff valve operation procedure in chapter 10 2 6 1 for details on how to handle shutoff valves When done or when pausing the refrigerant charging operation close the valve of the refrigerant tank immediately The refrigerant charge port of this product has an electric expansion valve The valve will be closed at end of refrigerant charging However the valve will be opened on operation after r...

Page 245: ...ion as follows When charging in cooling mode the system will stop operation when the required amount of refrigerant is charged During charging in heating mode a person must manually close valve A and stop operation Beforehand check the remaining refrigerant that is needed to charge based on the additional charging amount in step 2 and the charged amount in step 3 The refrigerant will be charged ab...

Page 246: ...ys is not as shown in the following diagram H1P H2P H3P H4P H5P H6P H7P h h i h h h h Measuring device R 410A tank with siphon Charge hose Equalizer pipe shutoff valve Valve C Outside unit A Outside unit B Valve A To BS indoor unit Valve B HP LP gas pipe shutoff valve Suction pipe shutoff valve Liquid pipe shutoff valve Refrigerant charge port Valve A The refrigerant will be charged about 66 lb in...

Page 247: ...ED displays are as below and that the remote controller display shows P9 code After checking push the MODE button BS1 once and the charging is complete In case of heating mode 7 Push the TEST button BS4 once within 5 minutes after procedure 5 4 and close all front panels After that open valve A immediately See figure 31 6 and check the charged amount by a measuring device During operation if the r...

Page 248: ...rigerant charging record the charging amount on the accessory REQUEST FOR THE INDICATON label Installation records and adhere it to the back side of the front panel Record the factory charged refrigerant amount additional refrigerant amount in the field and total refrigerant amount of the system to the ADDITIONAL REF CHARGE label and adhere it in the proximity of the refrigerant charge port Code M...

Page 249: ...ngs as needed using the push button BS1 BS5 on the outside unit PC board A1P with the power on See 10 2 7 Onsite Settings 3 Perform the check operation following the Check Operation Method of the Service Precautions label lower on the Electrical Components Box lid See figure 32 The system operates for about 40 60 minutes and then automatically stops the check operation If the malfunction code is n...

Page 250: ...ing work Air tight test Vacuum drying Additional refrigerant charge Check operation Check that all work for the BS and indoor unit is finished and that there is no danger to operate Malfunction code Installation error Remedial action E3 E4 F3 F6 UF The shutoff valve of the outside unit is left closed Open the shutoff valve U1 The phases of the power to the outside unit is reversed Exchange two of ...

Page 251: ...nction code U3 will be displayed in the remote controller Perform the check operation following 10 2 6 2 2 Procedure of Check Operation 10 2 8 3 Checks After Test Run Perform the following checks after the test run is complete Record the contents of the field setting Record them on the accessory REQUEST FOR THE INDICATION label And attach the label on the back side of the front panel Record the in...

Page 252: ... action is necessary to comply 1 Calculate the amount of refrigerant lb charged to each system separately Note Where a single refrigerant facility is divided into 2 entirely independent refrigerant systems use the amount of refrigerant with which each separate system is charged 2 Calculate the smallest room volume ft3 For the following cases calculate the volume of A B as a single room or as the s...

Page 253: ... Unit has been Added or Indoor or Outdoor Unit PC Board has been Changed Be sure to push and hold the RESET button for 5 seconds If not the addition cannot be recognized In this case the unit cannot be run for up to 12 minutes to to allow for automatic setting of the indoor outdoor addresses Status Outdoor unit Test lamp H2P Blinks Can also be set during operation described above Indoor unit If ON...

Page 254: ...SiUS34 801A_b Test Operation VRVIII R 410A Heat Recovery 60Hz 239 R 410A Label R 410A Label ...

Page 255: ...de display LED LEDs display mode according to the setting 3 Mode setting switch Used to change mode 4 Local setting switch Used to make field settings MODE SET RETURN TEST RESET BS1 BS2 BS3 BS4 BS5 H1P H2P H3P H4P H5P H6P H7P H8P 1 2 3 4 1 2 3 4 F1 F2 F1 F2 Q1 Q2 Indoor Outdoor Outdoor Outdoor Multi outdoor 2 Set mode display LED 3 Mode setting switch 1 Microcomputer normal monitor 4 Local setting...

Page 256: ... setting to ON with No 29 256 261 3 Setting of demand operation 1 Used to place limits on the compressor operating frequency to control the upper limit of power consumption 1 Mode 1 of Demand 1 60 or less of rating 2 Mode 2 of Demand 1 70 or less of rating 3 Mode 3 of Demand 1 80 or less of rating 4 Demand 2 40 or less of rating For setting with the use of an External Control Adapter Set the syste...

Page 257: ...tion of outdoor unit s concerned and to conduct emergency operation of the system only with operable or outdoor unit s Make this setting while in Setting mode 2 For system with multiple outdoor units Set with No 38 39 or 40 264 267 8 Additional refrigerant charging If a necessary amount of refrigerant cannot be charged due to the stop of outdoor unit operate the outdoor unit and then refill refrig...

Page 258: ...e parts PC board After the replacement by the spare PC board be sure to make settings shown below When you change the main PC board A1P to spare parts PC board please carry out the following setting DIP Switch Detail DS No Item Contents DS1 2 Power supply specification ON 200V class 220V OFF Factory setting of spare PC board 400V class 380V DS1 3 Except Multiple use Cooling only Heat pump setting ...

Page 259: ...ctory Setting represents the position of switches Single Unit A1P Main ON OFF 1 2 3 4 1 2 3 4 ON OFF 1 2 3 4 1 2 3 4 ON OFF 1 2 3 4 1 2 3 4 ON OFF Set DS1 2 DS1 4 and DS2 1 to ON HEAT RECOVERY 8ton REYQ96PTJU HEAT RECOVERY 10ton REYQ120PTJU HEAT RECOVERY 6ton 230V 460V REYQ72PTJU Application model Set DS1 2 DS1 4 DS2 1 and DS2 2 to ON Set DS1 2 DS1 4 DS2 1 and DS2 3 to ON Setting method represents...

Page 260: ...et DS1 2 DS1 3 DS1 4 and DS2 2 to ON Setting method represents the position of switches 1 2 3 4 1 2 3 4 ON OFF 1 2 3 4 1 2 3 4 ON OFF 1 2 3 4 1 2 3 4 ON OFF HEAT RECOVERY 12ton REYQ144PTJU Set DS1 2 DS1 3 DS1 4 DS2 1 and DS2 3 to ON 1 2 3 4 1 2 3 4 ON OFF Set DS1 3 DS1 4 and DS2 2 to ON HEAT RECOVERY 8ton REYQ96PYDN HEAT RECOVERY 10ton REYQ120PYDN HEAT RECOVERY 6ton REYQ72PYDN Application model Se...

Page 261: ...ositions of switches DS1DS2 LED EB 1 2 3 4 DS1 1 2 3 4 DS2 Factory Setting represents the positions of switches ON OFF 1 2 3 4 1 2 3 4 ON OFF 1 2 3 4 1 2 3 4 ON OFF 1 2 3 4 1 2 3 4 ON OFF Set DS1 2 DS1 4 DS2 1 and DS2 4 to ON HEAT RECOVERY 8ton REMQ96PTJU HEAT RECOVERY 10ton REMQ120PTJU HEAT RECOVERY 6ton 230V REMQ72PTJU Application model Set DS1 2 DS1 4 DS2 1 DS2 2 and DS2 4 to ON Set DS1 2 DS1 4...

Page 262: ...are the following three setting modes Setting mode 1 H1P off Initial status when normal Used to select the cool heat setting Also indicates during abnormal low noise control and demand control Setting mode 2 H1P on Used to modify the operating status and to set program addresses Usually used in servicing the system Monitor mode H1P blinks Used to check the program made in Setting mode 2 Used to ch...

Page 263: ... mode 1 Procedure for checking check items V2763 MODE H1P TEST H2P COOL HEAT select IND H3P MASTER H4P SLAVE H5P Low noise H6P Demand H7P 7 7 8 7 7 7 7 Current operating conditions 7Normal 8Abnormal 9In preparation or in check operation Low noise operating conditions 7In normal operation 8In low noise operation Demand operating conditions 7In normal operation 8In demand operation Check item select...

Page 264: ...est operation Used to forcibly turn ON the ENECUT Be noted that the ENECUT is only functional with outdoor unit in the stopped state Japanese domestic model only 25 Setting of external low noise level Sets low noise level when the low noise signal is input from outside 26 Night time low noise operation start setting Sets starting time of nighttime low noise operation Night time low noise setting i...

Page 265: ... With the BS unit set to default enabling bleed heating prevention setting of outdoor unit will enable the bleed heating prevention setting of all BS units connected to the outdoor unit BS unit default setting To make this setting by BS unit make a change to bleed heating prevention setting of the BS unit In this case enable the outdoor unit setting 42 Setting of BS Cool Heat selection control tim...

Page 266: ...ting 8 7 7 8 7 7 7 Low Level L 8777778 Normal Level M 8777787 HighN 8777788 HighO 8777877 HighP Level H 8777878 HighQ 8777887 HighR 8777888 9 Tc setting 8 7 7 8 7 7 8 Low 8777778 Normal factory setting 8777787 High 8777877 10 Defrost changeover setting 8 7 7 8 7 8 7 Slow defrost 8777778 Normal factory setting 8777787 Quick defrost 8777877 11 Sequentialoperation setting 8 7 7 8 7 8 8 OFF 8777778 ON...

Page 267: ... 7 OFF 8777778 ON 8777787 29 Capacity precedence setting 8 7 8 8 8 7 8 OFF 8777778 ON 8777787 30 Demand setting 1 8 7 8 8 8 8 7 60 demand 8777778 70 demand 8777787 80 demand 8777877 32 Normal demand setting 8 8 7 7 7 7 7 OFF 8777778 Demand 1 8777787 Demand 2 8777877 38 Emergency operation Master unit is inhibited to operate 8 8 7 7 8 8 7 OFF 8777778 Master unit operation Inhibited 8777787 39 Emerg...

Page 268: ... units 1 9 7 7 7 8 7 8 6 Number of connected BS units 2 9 7 7 7 8 8 7 7 Number of connected zone units Fixed to 0 9 7 7 7 8 8 8 8 Number of outdoor units 3 9 7 7 8 7 7 7 9 Number of BS units 4 9 7 7 8 7 7 8 Lower 4 digits upper 10 Number of BS units 4 9 7 7 8 7 8 7 Lower 4 digits lower 11 Number of zone units 9 7 7 8 7 8 8 Lower 6 digits 12 Number of terminal units 5 9 7 7 8 8 7 7 Lower 4 digits u...

Page 269: ...t unified address is expressed as a binary number consisting of the lower 6 digits 0 63 In the address is 010110 binary number which translates to 16 4 2 22 base 10 number In other words the address is 22 The number of terminal blocks for No 12 and 13 is expressed as an 8 digit binary number which is the combination of four upper and four lower digits for No 12 and 13 respectively 0 128 In the add...

Page 270: ...er supply ON NOTE 1 2 1 2 F2 B C A F2 F1 F1 F2 F1 Outside unit TOIN DUNIT TOOUT DUNIT F1 F2 F1 F2 F1 F2 F1 F2 IN D OUT D BS REMOTE CONTROLLER BS unit A F1 F2 F1 F2 IN D OUT D BS BS unit B COOL HEAT selector Branch wiring Use 2 core wires There is no polarity B C A REMOTE CONTROLLER COOL HEAT selector Cool heat selector remote control wiring Use 3 core wires Keep in mind the polarity F1 F2 F1 F2 IN...

Page 271: ...y at night The external control adaptor for outdoor unit is not required 1 While in Setting mode 2 select the setting condition i e Level 1 Level 2 or Level 3 for set item No 22 Setting of nighttime low noise level 2 If necessary while in Setting mode 2 select the setting condition i e 20 00 22 00 or 24 00 for set item No 26 Setting of start time of nighttime low noise operation Use the start time...

Page 272: ...etting Factory setting is AM 8 00 Time set with NIGHTTIME LOW NOISE end setting If capacity precedence is set with the Capacity Precedence setting the fan speed increases according to a heavier load of air conditioning Set with Nighttime Low Noise start setting Factory setting is PM 10 00 Time set with Nighttime Low Noise start setting Rated operation sound Operation sound Operation sound of level...

Page 273: ...2 Setting of constant demand to ON 2 While in Setting mode 2 select the set item No 30 Setting of Demand 1 level and then set the setting condition to targeted mode Description of setting Setting procedure Setting item Condition Description External control adaptor Outdoor unit PC board Demand 1 Level 1 Operate with power of approx 60 or less of the rating Short circuit between 1 and C of the term...

Page 274: ...l setting When the Normal demand setting is set to ON OFF has been set at factory the power consumption can be set with the Demand 1 level setting 70 of rated power consumption has been set at factory Power consumption Rated power consumption 80 of rated power consumption 70 of rated power consumption 60 of rated power consumption V3083 The power consumption set with Demand 1 level setting 0Demand...

Page 275: ...ayed 2 Setting mode 2 H1P on In setting 1 push and hold the BS1 MODE button for more than 5 seconds Setting mode 2 is entered and H1P lights Push the BS2 SET button several times and match the LED display with the Setting No you want Push the BS3 RETURN button one time and the present setting content is displayed Push the BS2 SET button several times and match the LED display with the setting cont...

Page 276: ...ode 1 9 Mode 2 9 Mode 3 9 9 25 External low noise setting Mode 1 9 Mode 2 Factory setting 9 Mode 3 9 26 Night time low noise start setting PM 8 00 9 PM 10 00 Factory setting 9 PM 0 00 9 27 Night time low noise end setting AM 6 00 9 AM 7 00 9 AM 8 00 Factory setting 9 29 Capacity precedence setting Low noise precedence Factory setting 9 Capacity precedence 9 30 Demand setting 1 60 of rated power co...

Page 277: ...igerant recovery operation Collect the refrigerant using a refrigerant recovery unit See the instruction attached to the refrigerant recovery unit for more detal Press Mode button BS1 once and reset Setting Mode 2 12 1 7 Setting of Vacuuming Mode In order to perform vacuuming operation at site fully open the expansion valves of indoor and outdoor units and turn on some solenoid valves Operating pr...

Page 278: ...ck Stop valve check Wrong wiring check Piping length check 5 minutes 3933383 Cooling start control Step 2 3933388 3938338 3938383 Stop valve close check Step 3 Pump down residual operation Step 9 5 minutes Standby for restarting Completion Step 10 Wrong wiring check Correct Refrigerant charge check Piping length check Judgement function Step4 8 CHECK OPERATION FUNCTION Press the MODE button BS1 on...

Page 279: ... the remote controller press the RUN STOP button on the remote controller for 4 seconds or more when the outdoor unit stops because of malfunction state Details of operation Automatically disable the defective outdoor unit from operating and then operate other outdoor units The following section shows malfunction codes on which this emergency operation is possible O Outdoor Unit Setting Procedure ...

Page 280: ... 8811881 3 Press the RETURN button BS3 once 8111119 Factory setting 4 Press the SET button BS2 once 8111191 5 Press the RETURN button BS3 twice 8111111 6 Press the MODE button BS1 once 1181111 LED display 8 ON 1 OFF 9 Blink Step H1P H7P 1 Press the MODE button BS1 for 5 seconds or more 8111111 2 Press the SET button BS2 39 times 8811888 3 Press the RETURN button BS3 once 8111119 Factory setting 4 ...

Page 281: ...the MODE button BS1 once 1181111 LED display 8 ON 1 OFF 9 Blink Step H1P H7P 1 Press and hold the MODE button BS1 for 5 sec or more 8111111 2 Press the SET button BS2 38 times 8811881 3 Press the RETURN button BS3 once 8111191 4 Press the SET button BS2 once 8111119 Factory setting 5 Press the RETURN button BS3 twice 8111111 6 Press the MODE button BS1 once 1181111 LED display 8 ON 1 OFF 9 Blink S...

Page 282: ...e outdoor unit 2 operation of setting mode 2 to OFF LED display 8 ON 1 OFF 9 Blink H1P H7P H8P Outdoor unit 1 1181111 8 Outdoor unit 2 1111111 9 LED display 8 ON 1 OFF 9 Blink Step H1P H7P 1 Press and hold the PAGE button BS1 for 5 sec or more 8111111 2 Press the SET button BS2 38 times 8811881 3 Press the RETURN button BS3 once 8111191 4 Press the SET button BS2 once 8111119 Factory setting 5 Pre...

Page 283: ... the bleed heating prevention setting of every BS unit In this case enable the outdoor unit setting 12 1 11Reduction of Cooling Heating Selection Time of BS Units Make this setting to reduce selection time between cooling and heating of the BS units with careful attention paid to the following points This setting is only enabled in case the refrigerant piping length between every BS unit connected...

Page 284: ...le the Cooling Thermostat is ON 291 5 2 When the Float Switch is Tripped while the Cooling Thermostat is OFF 291 5 3 When the Float Switch is Tripped During Heating Operation 292 5 4 When the Float Switch is Tripped and AF is Displayed on the Remote Con troller 292 6 Control of Electronic Expansion Valve 293 7 Freeze Prevention 294 8 Heater Control Optional PC Board KRP1B is required 295 9 List of...

Page 285: ... Insulation Material Foamed Polystyrene Foamed Polyethylene Foamed Polystyrene Foamed Polyethylene Foamed Polystyrene Foamed Polyethylene Piping Connections Liquid Pipes inch mm φ1 4 6 4 mm Flare Connection φ1 4 6 4 mm Flare Connection φ3 8 9 5 mm Flare Connection Gas Pipes inch mm φ1 2 12 7 mm Flare Connection φ1 2 12 7 mm Flare Connection φ5 8 15 8 mm Flare Connection Drain Pipe inch mm VP25 Ext...

Page 286: ...essor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Foamed Polystyrene Foamed Polyethylene Foamed Polystyrene Foamed Polyethylene Piping Connections Liquid Pipes inch mm φ3 8 9 5 mm Flare Connection φ3 8 9 5 mm Flare Connection Gas Pipes inch mm φ5 8 15 8 mm Flare Connection φ5 8 15 8 mm Flare Connection Drain Pipe ...

Page 287: ...r Cooling and Heating Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Air Filter Resin Net with Mold Resistant Resin Net with Mold Resistant Resin Net with Mold Resistant Piping Connections Liquid Pipes in mm φ1 4 6 4 mmm Flare Connection φ1 4 6 4 mmm Flare Connection φ1 4 6 4 mmm Flare Connection Gas Pipes in mm φ1 2 12 7 mm Flare Connection φ1 ...

Page 288: ...H W D in 10 1 4 11 1 4 x 22 5 8 x 22 5 8 260 286 x 575 x 575 mm Coil Cross Fin Coil Rows Stages FPI 2 10 0 06 Face Area ft 2 9 Fan Model QST32C15M Type Turbo Fan Motor Output High W 55 Air Flow Rate H L cfm 320 247 Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Air Filter Resin Net with Mold Resistant Piping Connections Liquid Pipes in mm φ1 4 6 4 mm Flare...

Page 289: ... Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Foamed Polyethylene Foamed Polyethylene Foamed Polyethylene Air Filter Removal Washable Mildew Proof Removal Washable Mildew Proof Removal Washable Mildew Proof Piping Connections Liquid Pipes in m...

Page 290: ...occo Fan Motor Output kW 0 13 0 13 Air Flow Rate H L cfm 440 350 H L 580 460 H L External Static Pressure 4 wg 0 16 0 06 0 16 0 06 Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Foamed Polyethylene Foamed Polyethylene Air Filter Removal Washable Milde...

Page 291: ...sor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Glass Fiber Glass Fiber Glass Fiber Air Filter Resin Net with Mold Resistant Resin Net with Mold Resistant Resin Net with Mold Resistant Piping Connections Liquid Pipes in mm φ1 4 6 4 mm Flare Connection φ1 4 6 4 mm Flare Connection φ3 8 9 5 mm Flare Connection Gas P...

Page 292: ...tat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Glass Fiber Glass Fiber Glass Fiber Air Filter Resin Net with Mold Resistant Resin Net with Mold Resistant Resin Net with Mold Resistant Piping Connections Liquid Pipes in mm φ3 8 9 5 mm Flare Connection φ3 8 9 5 mm Flare Connection φ3 8 9 5 mm Flare Connection Gas Pipes in mm ...

Page 293: ...3AG1VE 2D11 2D3AF1VE Type Sirocco Fan Sirocco Fan Sirocco Fan Motor Output kW 0 15 0 27 0 43 Air Flow Rate H L cfm 690 565 1 020 810 1 270 1 020 External Static Pressure 4 in Aq 0 66 0 43 0 71 0 43 1 0 0 72 Drive Direct Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat fo...

Page 294: ...ect Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Glass Wool Glass Wool Glass Wool Air Filter Resin Net with Mold Resistant Piping Connections Liquid Pipes in mm φ1 4 6 4 mm Flare Connection φ3 8 9 5 mm Flare Conn...

Page 295: ...ect Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Foamed Polystyrene Foamed Polyethylene Foamed Polystyrene Foamed Polyethylene Foamed Polystyrene Foamed Polyethylene Air Filter Resin Net Washable Resin Net Washable Resin Net ...

Page 296: ...CL9686 QCL9686 Type Cross Flow Fan Cross Flow Fan Motor Output kW 0 04 0 04 Air Flow Rate H L cfm 500 400 635 470 Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Foamed Polystyrene Foamed Polyethylene Foamed Polystyrene Foamed Polyethylene Air Filter R...

Page 297: ... Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Glass Fiber Urethane Foam Glass Fiber Urethane Foam Glass Fiber Urethane Foam Air Filter Resin Net with Mold Resistant Resin Net with Mold Resistant Resin Net with Mold Res...

Page 298: ... Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Glass Fiber Urethane Foam Glass Fiber Urethane Foam Glass Fiber Urethane Foam Air Filter Resin Net with Mold Resistant Resin Net with Mold Resistant Resin Net with Mo...

Page 299: ...gree of gas when cooling and subcooled degree when heating Max 2000 pls O Suction air thermistor R1T Used for thermostat control P Liquid pipe thermistor R2T Used to control superheated degree of gas when cooling and subcooled degree when heating Q Gas pipe thermistor R3T Used for gas superheated degree control when cooling Gas side Piping Liquid side Piping Fan Filter Filter Electronic Expansion ...

Page 300: ...d 20E MA OFF 52H Aux electric heater OFF 52H Humidifier OFF Mu Humidifier OFF Mu OFF ON a b Set temperature Suction air temperature a b 1 a b 0 5 is only available for the FXCQ FXFQ FXHQ and FXKQ series 20E Initialize electronic expansion valve The previous settings of air flow rate wind direction and temperature are displayed Is the safety device activated Is the RUN indicating lamp blinking Pres...

Page 301: ...progress Swing flap Set wind direction Fan Operating with set air flow rate MF Electronic expansion valve Capacity control 20E 20E 20E Fan LL operation MF Fan Operating in L mode MF Fan Stop MF b a 2 4 Suction air temp Set temp b a 3 2 1 3 2 1 Closed Electronic expansion valve Closed DEFROST HOT START indicating lamp OFF Electronic expansion valve Closed Electronic expansion valve Open Is outlet a...

Page 302: ...e preset temperature Ex When cooling Assuming the preset temperature in the figure above is 75 F and the suction temperature has changed from 64 F to 86 F A F This example also assumes there are several other air conditioners the VRV system is off and that temperature changes even when the thermostat sensor is off Body thermostat sensor is used for temperatures from 64 F to 73 F A C Remote control...

Page 303: ... so that the return air temperature is higher than the preset temperature Ex When heating Assuming the preset temperature in the figure above is 75 F and the return air temperature has changed from 64 F to 82 F A D This example also assumes there are several other air conditioners the VRV system is off and that temperature changes even when the thermostat sensor is off Return air sensor is used fo...

Page 304: ...Thermostat Control in Dry Operation While in dry operation the thermostat control is conducted according to a return air temperature at the time of starting the dry operation Assuming that the return air temperature at the time of starting the dry operation is Tro and the return air temperature in operation is Tr While in dry operation mode fans operate at L flow rate stops for a period of six min...

Page 305: ... 6 F 77 F 86 F Set cooling heating temp Heating mode Cooling mode Control temp Differential value set to 1 8 F 78 8 F 76 1 F 84 2 F Set heating temp 80 6 F Set cooling temp Heating mode Cooling mode Control temp Differential value set to 3 6 F 75 2 F 82 4 F Heating mode Cooling mode Control temp Differential value set to 5 4 F 74 3 F Heating mode Cooling mode Control temp 77 F Set heating temp 80 ...

Page 306: ...lowing 4 figures 5 1 When the Float Switch is Tripped while the Cooling Thermostat is ON 1 The objective of residual operation is to completely drain any moisture adhering to the fin of the indoor unit heat exchanger when the thermostat goes off during cooling operation 5 2 When the Float Switch is Tripped while the Cooling Thermostat is OFF ...

Page 307: ...minutes of operation it stops for 5 seconds then for 5 minutes the operation cycle ends then operation resumes until the switch is reset 5 4 When the Float Switch is Tripped and AF is Displayed on the Remote Controller Note If the float switch is tripped five times in succession a drain malfunction is determined to have occurred and AF is then displayed as operation continues ...

Page 308: ... Remote controller set temp return air temp becomes smaller SHS becomes higher Subcooled degree control in heating operation This function is used to adjust the opening of the electronic expansion valve so that the high pressure equivalent saturated temperature Tc which is converted from the detected pressure of the high pressure sensor in the outdoor unit and the subcooled degree SC which is calc...

Page 309: ...itions for starting freeze prevention Temperature is 30 2 F or less for total of 40 min or temperature is 23 F or less for total of 10 min Conditions for stopping freeze prevention Temperature is 44 6 F or more for 10 min continuously Conditions for starting when air flow direction is two way or three way Conditions for starting Temperature is 33 8ºF or less for a total of 15 minutes or 32ºF or le...

Page 310: ...ol ON OFF is conducted by converting the heater temperature into the condensing pressure equivalent saturated temperature Tc according to the temperature detection through the high pressure sensor SINPH of the outside unit Fan residual operation While the heater turns OFF in order to prevent the activation of the thermal protector the fan conducts residual operation for a given period of time afte...

Page 311: ...OFF mode for prevention of cold air Swing LL Horizontal Horizontal Horizontal Wind direction set LL Horizontal Horizontal Horizontal Stop Swing OFF Horizontal Horizontal Totally closed Wind direction set OFF Horizontal Horizontal Totally closed Cooling Thermostat ON in dry operation using micro computer Swing L 1 Swing Swing Swing Wind direction set L 1 Set Set Set Thermostat OFF in dry operation ...

Page 312: ...he start condition 2 is established the operations shown below will be conducted TH2 Temperature F detected with the gas thermistor TC High pressure equivalent saturated temperature Defrost ending or oil return ending or Thermostat ON The fan is not OFF before initiating the hot start LL The fan is OFF before initiating the hot start OFF Hot start control Hot start in progress Normal control Norma...

Page 313: ...e flow multi flow and corner types P0 P1 P2 P4 P3 P0 P1 P2 P4 P3 P0 P0 P1 P2 P4 P4 P2 P1 P0 P4 P4 P3 P2 P1 P0 P3 Existing position Draft prevention position Standard Setting position Ceiling soiling prevention position Not for Multi flow type Draft prevention position Standard position Prohibited Prohibited Dirt prevention position P0 P0 P0 P1 P2 P2 P1 P3 P3 P4 P4 P1 P2 P3 P4 Same as existing posi...

Page 314: ...e normal mode push the button for 4 seconds or more and operation then enters the FIELD SET MODE Select the desired MODE NO with the button 2 During group control and you want to set by each individual indoor unit when mode No 20 21 22 23 25 has been selected push the time mode button and select the indoor unit No to be set Note This operation is not required when setting as a group 3 Push the but...

Page 315: ...the field set mode 2 Select the desired mode No with the button 3 Pushing the button select the first code No 4 Pushing the button select the second code No 5 Push the timer button and check the settings 6 Push the button to return to the normal mode Example When setting the filter sign time to Filter Dirtiness High in all group unit setting set the Mode No to 10 Mode setting No to 0 and setting p...

Page 316: ...door unit mode No 20 22 and 23 have been selected push the BS8 Q BUTTON unit No and select the INDOOR UNIT NO to be set This operation is unnecessary when setting by group 5 Push the BS9 BUTTON R set A and select FIRST CODE NO 6 Push the BS10 BUTTON S set B and select SECOND CODE NO 7 Push the BS7 BUTTON T set cancel once and the present settings are SET 8 Push the BS6 BUTTON U field set to return...

Page 317: ... body thermostat Only remote controller thermostat 3 3 Display time to clean air filter calculation Set when filter sign is not to be displayed Display No display 4 12 22 0 Optional accessories output selection field selection of output for adaptor for wiring Indoor unit turned ON by thermostat Operation output Malfunction output 5 1 ON OFF input from outside Set when ON OFF is to be controlled fr...

Page 318: ...ype Ceiling Suspended type Wall mounted type Floor standing type Concealed Floor standing type Multi flow FXFQ FXZQ FXDQ FXSQ FXMQ FXHQ FXAQ FXLQ FXNQ Filter sign Ultra long life filter sign Remote controller thermostat sensor Set fan speed when thermostat OFF Airflow adjustment Ceiling height Airflow direction Airflow direction adjustment Down flow operation Airflow direction adjustment range Fie...

Page 319: ...When the Second Code No is set to 03 room temperature is controlled by the remote controller thermistor 4 Filter Cleaning Displayed or Not Displayed Whether or not to display Filter Cleaning after operation of certain duration can be selected Filter Specs Setting Standard Long Life Ultra Long Life Filter Contamination Light 200 hrs 2 500 hrs 10 000 hrs Contamination Heavy 100 hrs 1 250 hrs 5 000 h...

Page 320: ...F air flow volume up mode is used careful consideration is required before deciding installation location During heating operation this setting takes precedence over 7 Fan Stop When Thermostat is OFF Mode No First Code No Second Code No Remarks 12 22 0 01 Indoor unit thermostat ON OFF signal is provided 03 Output linked with Start Stop of remote controller is provided 04 In case of Malfunction Dis...

Page 321: ...set to enable Auto restart function after power failure reset use the following cautions 11 Air Flow When Cooling Thermostat is OFF Sets airflow to LL air flow when cooling thermostat is OFF 12 Setting of Normal Air Flow Make the following setting according to the ceiling height The setting position No is set to 01 at the factory In the Case of FXAQ FXHQ Mode No Setting switch No Setting position ...

Page 322: ...ay Outlets 13 23 0 01 Standard N Lower than 9 ft Lower than 10 ft Lower than 12 ft 02 High Ceiling H Lower than 10 ft Lower than 11 ft Lower than 13 ft 03 Higher Ceiling S Lower than 12 ft Lower than 12 ft Mode No First code No Second code No Setting Ceiling height 4 way Outlets 3 way Outlets 2 way Outlets 13 23 0 01 Standard N Lower than 12 ft Lower than 12 ft Lower than 14 ft 02 High Ceiling H L...

Page 323: ...ier and Drain Pump Used to interlock the humidifier with the drain pump When water is drained out of the unit this setting is unnecessary 19 Individual Setting of Ventilation Set to perform individual operation of heat reclaim ventilation using the remote controller central unit if the option is available Mode No First Code No Second Code No Setting 15 25 1 01 02 Setting of humidifier Mode No Firs...

Page 324: ...ton to inspect the group No display 4 Set the group No for each group with the button The group No increases in the manner of 1 00 1 01 1 15 2 00 4 15 However the unified ON OFF controller displays only the group No within the range selected by the switch for setting each address 5 Push the timer button to define the selected group No 6 Push the button to return to the normal mode Even if not usin...

Page 325: ...ntralized control 1 When in the normal mode push the button for 4 seconds or more and operation then enters the field set mode 2 Set mode No 00 with the button 3 Set the group No for each group with the buttons advance backward 4 Enter the selected group numbers by pushing the button 5 Push the button and return to the normal mode ...

Page 326: ... about 1 minute on the liquid crystal display This is not an operational flaw Centoral Remote Controller F1 F2 F1 F2 F1 F2 F1 F2 P1 P2 RC RC RC RC RC F1 F2 P1 P2 F1 F2 P1 P2 F1 F2 P1 P2 F1 F2 P1 P2 F1 F2 P1 P2 F1 F2 P1 P2 F1 F2 P1 P2 No Remote Controller Group Control by Remote Contoller autmatic unit address 1 03 1 00 1 01 Main Sub 1 02 1 04 Indoor Outdoor Outdoor Outdoor F1 F2 F1 F2 Indoor Outdo...

Page 327: ...temperature and operation mode setting by remote controller can be set and displayed by operation modes 0 through 19 ON OFF control cannot be performed with the remote controller Used when you want to turn on off by central remote controller only OFF control only possible by remote controller Used when you want to turn on by central remote controller only and off by remote controller only Centrali...

Page 328: ...controller Control mode Operation OFF Temperature control Operation mode setting Unified operation individual operation by central remote controller or operation controlled by timer Unified OFF individual stop by central remote controller or timer stop ON OFF control impossible by remote controller Rejection Example Rejection Example Rejection Example Rejection Acceptance 0 Rejection 10 Acceptance...

Page 329: ...Field Setting SiUS34 801A_b 314 Indoor Unit ...

Page 330: ...nger 352 3 10 C5 Indoor Unit Malfunction of Thermistor R3T for Gas Pipes 353 3 11 C9 Indoor Unit Malfunction of Thermistor R1T for Suction Air 354 3 12 CJ Indoor Unit Malfunction of Thermostat Sensor in Remote Controller 355 3 13 E1 Outdoor Unit PC Board Defect 356 3 14 E2 Outdoor Unit Detection of ground leakage by leak detection PC board ass y357 3 15 E3 Outdoor Unit Actuation of High Pressure S...

Page 331: ...ng after Replacing Main PC Board or Faulty Combination of PC Board 410 3 44 U0 Outdoor Unit Gas Shortage Alert 412 3 45 U1 Reverse Phase Open Phase 414 3 46 U2 Outdoor Unit Power Supply Insufficient or Instantaneous Failure 415 3 47 U3 Outdoor Unit Check Operation not Executed 418 3 48 U4 Malfunction of Transmission between Indoor Units 419 3 49 U5 Indoor Unit Malfunction of Transmission between R...

Page 332: ...iUS34 801A_b Troubleshooting 317 5 1 Operation Lamp Blinks 453 5 2 Display Under Centralized Control Blinks Repeats Single Blink 455 5 3 Display Under Centralized Control Blinks Repeats Double Blink 458 ...

Page 333: ...sources e g OA equipment located in a room 4 System does not operate The system stops and immediately restarts operation If the OPERATION lamp on the remote controller turns ON the system will be normal These symptoms indicate that the system is controlled so as not to put unreasonable loads on the system Normal operation The system will automatically start operation after a lapse of five minutes ...

Page 334: ...rection is not corresponding to that displayed on the remote controller The louver does not swing Automatic control Normal operation 10 A white mist emits from the system Indoor unit In cooling operation the ambient humidity is high Indoor unit is installed in a place with a lot of oil or dust Uneven temperature distribution due to heavy stain of the inside of the indoor unit Clean the inside of t...

Page 335: ...m the system In operation Odors in a room are absorbed into indoor unit and then blown out The inside of the indoor unit should be cleaned 14 Outdoor unit fan does not rotate In operation Fan revolutions are controlled for optimum performance Normal operation 15 LCD display 88 appears on the remote controller Immediately after turning ON the power supply System is checking if remote controller is ...

Page 336: ...ration button for more than 4 seconds Press Inspection Test Operation button once Press Inspection Test Operation button once Or after 30 minutes After 10 seconds Press Inspection Test Operation button once Press Inspection Test Operation button once Indoor unit settings can be made Filter sign time Air flow direction Others Following codes can be checked Malfunction codes Indoor model code Outdoo...

Page 337: ...o tell what kind of malfunction caused operation to stop See page 115 for malfunction codes and the corresponding problem Note 1 Pressing the INSPECTION TEST button will blink to indicate checking mode 2 While in check mode pressing and holding the ON OFF button for a period of five seconds or more will clear the failure history indication shown above In this case on the codes display the malfunct...

Page 338: ...owing operations 1 short beep Conduct steps 3 and 4 Continue the operation in step 4 until a buzzer remains ON The continuous buzzer indicates that the malfunction code is confirmed Continuous beep No abnormality 3 Press the MODE selector button The left 0 upper digit indication of the malfunction code flashes 4 Malfunction code upper digit diagnosis Press the UP or DOWN button and change the malf...

Page 339: ...Troubleshooting by Remote Controller SiUS34 801A_b 324 Troubleshooting The lower digit of the code changes as shown below when the UP and DOWN buttons are pressed ...

Page 340: ...SiUS34 801A_b Troubleshooting by Remote Controller Troubleshooting 325 ...

Page 341: ...A A 3 A 9 2 A A 5 A A A A 9 6 A 9 F Outdoor model code Model RSXYP RXYP RSEYP RSXYP L RXYQ M REYQM RXYQ PYDN RXYQ PTJU REYQ PYDN REYQ PTJU Unit Malfunction code Inspection Normal display No display 0 L 0 Malfunction code blinks when a malfunction occurs Unit Malfunction code Inspection Inspection mode Push the button Inspection test operation Push the button Inspection test operation Push the butt...

Page 342: ...For wireless remote controller Mode 43 only can be set 2 Select the unit No For group control only Select the indoor unit No to be set with the time mode For wireless remote controller button 3 Make the settings required for each mode Modes 41 44 45 In case of Mode 44 45 push button to be able to change setting before setting work LCD code blinks For details refer to the table in next page 4 Defin...

Page 343: ...ach unit When you want to search for the unit No By selecting the unit No with the button you can turn the fan of each indoor unit on forced ON individually 44 Individual setting Set the fan speed and air flow direction by each unit Select the unit No with the time mode button Set the fan speed with the button Set the air flow direction with the button 45 Unit No transfer Transfer unit No Select t...

Page 344: ...oller Self Diagnosis Function The remote controller switches are equipped with a self diagnosis function to ensure appropriate maintenance If a malfunction occurs during operation the operation lamp malfunction code location and unit number are displayed When there is a stop due to malfunction the contents of the malfunction given below can be diagnosed by a combination of operation lamp INSPECTIO...

Page 345: ...9 9 Actuation of high pressure switch 360 E4 9 9 9 Actuation of low pressure sensor 361 E5 9 9 9 Compressor motor lock 364 E6 9 9 9 Standard compressor lock or over current 365 E7 9 9 9 Malfunction of outdoor unit fan motor 367 E9 9 9 9 Malfunction of moving part of electronic expansion valve Y1E Y2E Y3E 370 F3 9 9 9 Abnormal discharge pipe temperature 372 F6 9 9 9 Refrigerant overcharged 374 F9 9...

Page 346: ...controllers malfunction of sub remote controller 431 U9 9 9 9 Malfunction of transmission between indoor unit and outdoor unit in the same system 432 UA 9 9 9 Improper combination of indoor and outdoor units indoor units and remote controller 433 UC 8 8 8 Address duplication of central remote controller 439 UE 9 9 9 Malfunction of transmission between central remote controller and indoor unit 440 ...

Page 347: ...r for fan 2 DC fan motor lock detected for fan 2 Electronic expansion valve malfunction EVM E9 EV2 EVT Positioning signal malfunction of outdoor unit fan motor DC fan motor positioning signal malfunction for fan 1 H7 DC fan motor positioning signal malfunction for fan 2 Abnormal outdoor temperature Ta sensor malfunction short circuited H9 Ta sensor malfunction open Abnormal discharge pipe temperat...

Page 348: ...9 9 8 8 7 7 F3 9 9 7 7 9 7 9 9 7 8 7 7 9 9 9 8 7 7 7 7 7 9 8 8 7 7 F6 9 7 8 7 9 9 7 9 8 7 7 7 7 7 9 8 8 7 7 9 9 J2 9 9 7 7 9 9 7 9 7 8 7 7 9 7 9 8 7 7 7 7 7 9 8 8 7 7 1 9 8 7 7 7 7 7 9 8 8 7 9 J3 9 7 8 7 7 9 9 9 8 7 7 7 7 7 9 8 8 7 7 9 8 7 7 7 7 7 9 8 8 7 9 9 8 7 7 7 7 7 9 8 8 9 7 9 8 7 7 7 7 9 9 8 8 7 7 9 8 7 7 7 7 9 9 8 8 7 9 9 8 7 7 7 7 9 9 8 8 9 7 J4 9 7 8 7 9 7 7 9 8 7 7 7 7 7 9 8 8 7 7 9 8 7...

Page 349: ...V transmission malfunction LC Open phase and unbalanced power supply Unbalanced INV power supply voltage P1 Switch box inside temperature sensor malfunction INV box temperature thermistor malfunction P3 INV radiation fin temperature sensor malfunction INV fin thermistor malfunction P4 Faulty combination of INV and fan driver Faulty combination of INV PJ Faulty combination of fan driver 1 Faulty co...

Page 350: ...9 9 7 7 7 7 9 9 7 U0 9 9 7 9 7 7 9 9 7 7 7 7 9 7 7 7 7 9 7 7 9 9 U1 9 7 7 7 9 9 7 7 7 7 9 7 7 1 U2 9 7 7 9 7 9 7 7 7 7 9 7 7 9 7 7 7 7 9 7 9 U3 9 7 7 9 9 9 7 7 7 7 9 7 7 9 9 9 7 7 7 7 9 7 9 9 9 U4 9 7 9 7 7 9 7 7 7 7 9 7 7 9 9 9 7 7 7 7 9 7 9 9 9 U7 9 7 9 9 9 9 7 7 7 7 9 7 9 9 9 9 7 7 7 7 9 7 7 9 9 9 7 7 7 7 9 9 7 9 9 9 7 7 7 7 9 9 9 9 9 9 7 7 7 9 9 7 7 9 9 9 7 7 7 9 9 7 9 9 9 9 7 7 7 9 9 9 7 9 9 ...

Page 351: ...minals with the remote controller set to external ON OFF terminal Supposed Causes Actuation of external protection device Improper field set Defect of indoor unit PC board Troubleshooting V2776 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Indoor unit PC board replacement Actuation of external protection device Change the second cod...

Page 352: ...eceived from the E PROM E PROM Type of nonvolatile memory Maintains memory contents even when the power supply is turned off Supposed Causes Defect of indoor unit PC board Troubleshooting Turn power supply OFF then power ON again Does the system return to normal YES Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Replace the indoor un...

Page 353: ...Q FXMQ FXHQ Option FXAQ Option Method of Malfunction Detection By float switch OFF detection Malfunction Decision Conditions When rise of water level is not a condition and the float switch goes OFF Supposed Causes 220 240V power supply is not provided Defect of float switch or short circuit connector Defect of drain pump Drain clogging upward slope etc Defect of indoor unit PC board Loose connect...

Page 354: ... indoor unit PC board Loose connection of connector NO NO NO YES YES NO NO YES NO YES NO NO The float switch is connected to X8A of the indoor unit PC board NO The drain pump works when the power supply is reset for the indoor unit The drain pump is connected to X25A or terminals Y1 and Y2 of the indoorunit PC board The voltage of terminals Y1 and Y2 or X25A is 220 240 V within 5minutes of resetti...

Page 355: ...When the fan revolutions do not increase Supposed Causes Broken wires in short circuit of or disconnection of connectors from the fan motor harness Faulty fan motor Broken wires or faulty insulation Abnormal signal output from the fan motor Faulty circuit Faulty PC board Instantaneous disturbance in the power supply voltage Fan motor lock Due to motor or external causes The fan does not rotate due...

Page 356: ... 5 6 7 Red FG Vsp Vcc GND Vdc Vdc 1 GND 2 3 3 FG 4 Vsp 1 2 5 Vcc Measuring point FG GND Vsp GND Vcc GND Vdc GND Criteria Not less than 1MΩ Not less than 100kΩ Not less than 100Ω Not less than 100kΩ Judgment Criteria FXAQ 20 63MAVE FXFQ 25 125MVE Disconnect the connector from the fan motor and then make measurement of resistance between pins 2 Turn OFF the power supply and then wait for a period of...

Page 357: ...Faulty indoor fan motor Broken wires Faulty contact Troubleshooting Is the power of approx 12VDC supplied between the Pins1 and 3 when the X27A is disconnected and the power supply turns ON YES NO NO YES Are the X4A and X27A connectors securely connected At this time check for any faulty connector contact or broken wires Check the indoor unit fan motor and the wiring circuits of the motor Replace ...

Page 358: ... operation Supposed Causes Faulty power supply for the indoor unit fan motor Clogged drain piping Actuation of the indoor unit safety device Faulty contact in the fan wiring circuit Troubleshooting NO NO YES Is the power supply cable of the indoor unit fan properly connected YES Is the fan normally running Restart the fan Properly connect the cable It is supposed that the indoor unit fan motor sto...

Page 359: ...mit switch when the motor turns Malfunction Decision Conditions When ON OFF of the microswitch for positioning cannot be reversed even though the louver motor is energized for a specified amount of time about 30 seconds Error code is displayed but the system operates continuously Supposed Causes Defect of swing motor Defect of connection cable power supply and limit switch Defect of airflow direct...

Page 360: ...gain Replace indoor unit PC board NO NO YES NO YES NO YES YES NO Indoor unit is a model equipped with a swing flap function The swing motor works when the power supply is turned off and then back on When the air flow direction flap s cam mechanism is disconnected from the swing motor operation is normal when turned on again The connecting cable has no continuity After turning the swing flap ON and...

Page 361: ...electronic expansion valve main body by using microcomputer Malfunction Decision Conditions Pin input for electronic expansion valve coil is abnormal when initializing microcomputer Either of the following conditions is seen caused occurs while the unit stops operation Temperature of suction air R1T temperature of liquid pipe of heat exchanger R2T 46 4 F Temperature of liquid pipe of heat exchange...

Page 362: ... valve main body When power is supplied YES YES 1 How to check the coil of electronic expansion valve drive Remove the connector for electronic expansion valve X7A from PC board Measure the resistance value between pins and check the continuity to judge the condition 1 White 2 Yellow 3 Orange 4 Blue 6 Brown 5 Red The normal products will show the following conditions No continuity between 1 and 2 ...

Page 363: ...ls Indoor units except FXFQ models Method of Malfunction Detection Check coil condition of electronic expansion valve by using microcomputer Malfunction Decision Conditions Pin input for electronic expansion valve coil is abnormal when initializing microcomputer Supposed Causes Defective drive of electronic expansion valve Defective PC board of indoor unit Defective relay cables Troubleshooting ...

Page 364: ...ution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred YES 1 How to check the coil of electronic expansion valve drive Remove the connector for electronic expansion valve X7A from PC board Measure the resistance value between pins and check the continuity to judge the condition 1 White 2 Yellow 3 Orange 4 Blue 6 Brown 5 Red The normal products...

Page 365: ...ON to OFF while the compressor is in non operation Error code is displayed but the system operates continuously Supposed Causes Humidifier unit optional accessory leaking Defect of drain pipe upward slope etc Defect of indoor unit PC board Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Defect of indoor unit PC board M...

Page 366: ... abnormal Malfunction Decision Conditions When the capacity code is not contained in the PC board s memory and the capacity setting adaptor is not connected Supposed Causes The capacity setting adaptor was not installed Defect of indoor unit PC board Troubleshooting V2783 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Install a capac...

Page 367: ...efect of thermistor R2T for liquid pipe Defect of indoor unit PC board Troubleshooting Refer to the Thermistor Resistance Temperature Characteristics table on Page 523 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Remove the thermistor from the indoor unit PC board and then insert it again Remove the thermistor from the indoor unit ...

Page 368: ...r unit thermistor R3T for gas pipe Defect of indoor unit PC board Troubleshooting Refer to the Thermistor Resistance Temperature Characteristics table on Page 529 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Remove the thermistor from the indoor unit PC board and then insert it again Remove the thermistor from the indoor unit PC bo...

Page 369: ...d or shorted while the unit is running Supposed Causes Defect of indoor unit thermistor R1T for air inlet Defect of indoor unit PC board Troubleshooting Refer to the Thermistor Resistance Temperature Characteristics table on Page 529 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Remove the thermistor from the indoor unit PC board an...

Page 370: ...ntroller thermistor Defect of remote controller PC board Troubleshooting Note 1 How to delete the record of malfunction codes Press the Operate Stop button for 4 seconds or more while the malfunction code is displayed in the inspection mode Refer to the Thermistor Resistance Temperature Characteristics table on Page 529 Clear the malfunction code history While in inspection mode press and hold the...

Page 371: ...s in the hardware section between the indoor unit and the outdoor unit are not normal Supposed Causes Defect of outdoor unit PC board A1P Defective connection of inside outside relay wires Troubleshooting Turn off the power once and turn on again Return to normal Check if inside outside relay wires of outdoor main PC board is disconnected YES Caution Be sure to turn off power switch before connect...

Page 372: ...on PC board ass y Remote Controller Display E2 Applicable Models RXYQ72P 240PYDN PTJU REYQ72P 240PYDN PTJU Method of Malfunction Detection Failure is to be detected by using leak detection PC board assembly Malfunction Decision Conditions Leakage is detected under the conditions outside of the scope of HPS operation Supposed Causes Defect of compressor ...

Page 373: ...e earth leakage detection PC board A7P or A9P 2 for any broken wire in it Reinstall all wirings Turn ON the power supply Check whether there is continuity between both X3A ends of the earth leakage detection PC board Check whether there is continuity between both ends of HPS Normal No continuity 2 No continuity Replace the earth leakage detection PC board A7P or A9P 2 Replace the HPS It is suppose...

Page 374: ...d when the contact of the high pressure protection switch opens Malfunction Decision Conditions Error is generated when the HPS activation count reaches the number specific to the operation mode Reference Operating pressure of high pressure switch Operating pressure 580psi Reset pressure 413 25psi Supposed Causes Actuation of outdoor unit high pressure switch Defect of High pressure switch Defect ...

Page 375: ...igh pressure sensor The high pressure sensor is normal and the pressure detected with the PC board is also normal The high pressure has really become high CHECK 5 Referring to information on P464 remove the causes by which the high pressure has become high 1 Make a comparison between the voltage of the pressure sensor and that read by the pressure gauge As to the voltage of the pressure sensor mak...

Page 376: ...Q72P 240PYDN PTJU Method of Malfunction Detection Abnormality is detected by the pressure value with the low pressure sensor Malfunction Decision Conditions Error is generated when the low pressure is dropped under compressor operation Operating pressure 10 15psi Supposed Causes Abnormal drop of low pressure Lower than 10 15psi Defect of low pressure sensor Defect of outdoor unit PC board Stop val...

Page 377: ...rmation on P465 remove the causes by which the low pressure has become low 1 Make a comparison between the voltage of the pressure sensor and that read by the pressure gauge As to the voltage of the pressure sensor make measurement of voltage at the connector and then convert it to pressure according to information on P533 2 Make measurement of voltage of the pressure sensor Caution Be sure to tur...

Page 378: ...akes the position signal from UVW line connected between the inverter and compressor and the malfunction is detected when any abnormality is observed in the phase current waveform Malfunction Decision Conditions This malfunction will be output when the inverter compressor motor does not start up even in forced startup mode Supposed Causes Inverter compressor lock High differential pressure 72 5psi...

Page 379: ...n of wires Restart and check the operation Check if the condition occurs again Check if the start mode is in the high differential pressure not less than 72 5psi Check if the inverter output voltage between 3 phases is within 5V The insulation resistance of the compressor is low not more than 100kΩ YES YES U V W Check if the wiring has any error in mistake for inverter compressor Remove the connec...

Page 380: ...DN PTJU REYQ72P 240PYDN PTJU Method of Malfunction Detection Detects the overcurrent with current sensor CT Malfunction Decision Conditions Malfunction is decided when the detected current value exceeds the following value for 2 seconds 400 V unit 15 0 A Supposed Causes Closed stop value Obstacles at the air outlet Improper power voltage Faulty magnetic switch Faulty compressor Faulty current sens...

Page 381: ...ists around the air outlet YES Is the power supply voltage normal NO NO NO YES NO Is the magnetic switch K2M K3M normal 1 Is above wiring correct NO Is current sensor correct 1 Check the wiring from power supply current sensor A6P A7P MgS K2M K3M compressor Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Open the stop valve Remove the...

Page 382: ...sed on the number of rotation detected by hole IC during the fan motor operation Malfunction Decision Conditions Overcurrent is detected for INVERTER PC board A2P or fan INVERTER PC board A5P System down is caused by 4 times of detection In the condition of fan motor rotation the number of rotation is below the fixed number for more than 6 seconds System down is caused by 4 times of detection Supp...

Page 383: ...atus of the connectors Fan motor 1 relay connector or X1A X2A X501A X502A of compressor inverter PC board Fan motor 2 relay connector or X1A X2A X501A X502A of fan inverter PC board Check the color of relay connectors Fan motor 1 Both power supply wire and signal wire are all white Fan motor 2 Both power supply wire and signal wire are red in the PC board side and white in the motor side Cut the p...

Page 384: ...onnector of the fan motor NO Replace the corresponding fan motor YES Resistance value between the power supply wire terminal of fan motor and the motor frame metal is 1MΩ and below NO Replace the corresponding fan motor YES The resistance value between UVW phases of fan motor is out of balance or short circuit between UVW phases Check 1 Check fan motor connector power supply wire Check 2 Check fan...

Page 385: ...YDN PTJU REYQ72P 240PYDN PTJU Method of Malfunction Detection Check disconnection of connector To be detected based on continuity of of electronic expansion valve coil Malfunction Decision Conditions No current is detected in the common COM when power supply is ON Supposed Causes Disconnection of connectors for electronic expansion valve Y1E Defect of moving part of electronic expansion valve Defe...

Page 386: ...tronic expansion valve is connected Replace the connecting cable Replace outdoor unit PC board A1P YES YES NO Ensure correct connection External factor other than malfunction for example noise etc NO The coil resistance of electronic expansion valve isnormal Refer to 1 NO Check the electronic expansion valve corresponding to the malfunction code E9 in the monitor mode Refer to P334 335 for how to ...

Page 387: ...od of Malfunction Detection Temperature detected by the discharge pipe temperature sensor Malfunction Decision Conditions When the discharge pipe temperature rises to an abnormally high level 275 F and above When the discharge pipe temperature rises suddenly 248 F and above for10 successive minutes Supposed Causes Faulty discharge pipe temperature sensor Faulty connection of discharge pipe tempera...

Page 388: ... YES Discharge pipe thermister is normal and the temperature detection of the main PC board is also normal Actually the temperature of discharge pipe is high Check 3 Remove the factor of overheat operation referring to P462 Service Checker Connect the service checker to compare the temperature of discharge pipe by using service checker with actual measurement value of discharge pipe thermister Ref...

Page 389: ... of the outside air thermistor Misalignment of the heat exchanging deicer thermistor Misalignment of the liquid pipe thermistor Troubleshooting Refer to the Thermistor Resistance Temperature Characteristics table on Page 523 V2797 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Are the above thermistor installed on pipes correctly Che...

Page 390: ...able Models RXYQ72P 240PYDN PTJU REYQ72P 240PYDN PTJU Method of Malfunction Detection Abnormal signal from fan motor Malfunction Decision Conditions In case of detection of abnormal signal at starting fan motor Supposed Causes Abnormal fan motor signal circuit malfunction Broken short or disconnection connector of fan motor connection cable Fan Inverter PC board malfunction A2P ...

Page 391: ...W are balanced Check the connector of the fan motor 1 Cut the power supply off 1 Check procedure for fan motor connector 1 Power OFF the fan motor 2 Remove the connector X2A or X4A on the PC board to measure the following resistance value Judgment criteria resistance value between each phase is within 20 Connector for signal wires X2A or X4A Check the fan motor corresponding to the malfunction cod...

Page 392: ...onnection Defect of thermistor R1T for outdoor air Defect of outdoor unit PC board A1P Troubleshooting Refer to the Thermistor Resistance Temperature Characteristics table on Page 523 V3070 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Resistance is normal when measured after disconnecting the thermistor R1T from the outdoor unit PC...

Page 393: ...ble Models RXYQ72P 240PYDN PTJU REYQ72P 240PYDN PTJU Method of Malfunction Detection Current value detected by current sensor Malfunction Decision Conditions When the current value detected by current sensor becomes 5A or lower or 40A or more during standard compressor operation Supposed Causes Faulty current sensor A6P A8P Faulty outdoor unit PC board Defective compressor ...

Page 394: ... A1P Replace current sensor or outdoor unit PC board Connect the connector and operate unit again NO NO Mount the current sensor correctly and operate unit again YES Correct the connections between the current sensors and the STD compressors Applicable compressor coil wire is broken YES Replace compressor NO NO YES YES Check the current sensor corresponding to the malfunction code J2 in the monito...

Page 395: ...ect of outdoor unit PC board A1P Defect of thermistor connection Troubleshooting The alarm indicator is displayed when the fan is being used also Refer to the Thermistor Resistance Temperature Characteristics table on Page 523 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Resistance is normal when measured after disconnecting the th...

Page 396: ... of thermistor Defective thermistor Defective outdoor unit PC board Troubleshooting Refer to the Thermistor Resistance Temperature Characteristics table on Page 523 V3070 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Resistance is normal when measured after disconnecting the thermistor R2T or R11T from the outdoor unit PC board 1 8k...

Page 397: ...0T for outdoor unit suction pipe Defect of outdoor unit PC board A1P Defect of thermistor connection Troubleshooting Refer to the Thermistor Resistance Temperature Characteristics table on Page 523 V3073 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Resistance is normal when measured after dis connecting the thermistor R8T or R10T f...

Page 398: ...T or R12T for outdoor unit coil Defect of outdoor unit PC board A1P Defect of thermistor connection Troubleshooting Refer to the Thermistor Resistance Temperature Characteristics table on Page 523 V3074 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Resistance is normal when measured after disconnecting the thermistor R4T or R12T fro...

Page 399: ...1 R6T R9T or R14T Faulty outdoor unit PC board Defect of thermistor connection Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P523 V3075 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the resistance measured after removing the thermistor R6T R9T or R14T from outdoor unit PC board normal 1 8kΩ t...

Page 400: ...tor 2 R7T or R15T Faulty outdoor unit PC board Defect of thermistor connection Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P523 V3075 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the resistance measured after removing the thermistor R7T or R15T from outdoor unit PC board normal 1 8kΩ to 80...

Page 401: ...s Faulty subcooling heat exchanger gas pipe thermistor R5T or R13T Faulty outdoor unit PC board Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P523 V3075 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the resistance measured after removing the thermistor R5T or R13T from outdoor unit PC board n...

Page 402: ...Method of Malfunction Detection Malfunction is detected from the pressure detected by the high pressure sensor Malfunction Decision Conditions When the high pressure sensor is short circuit or open circuit Not less than 611 9psi or 1 45psi and below Supposed Causes Defect of high pressure sensor system Connection of low pressure sensor with wrong connection Defect of outdoor unit PC board Defectiv...

Page 403: ...e main PC board Replace the high pressure sensor YES NO Replace the main PC board NO Replace the high pressure sensor YES NO Are the characteristics of the high pressure sensor normal Make a comparison between the voltage characteristics 2 and the gauge pressure YES If the PC board pressure detection normal Make a comparison between the checker pressure data and the voltage characteristics 2 1 Set...

Page 404: ...PTJU Method of Malfunction Detection Malfunction is detected from pressure detected by low pressure sensor Malfunction Decision Conditions When the low pressure sensor is short circuit or open circuit Not less than 256 65psi or 1 45psi and below Supposed Causes Defect of low pressure sensor system Connection of high pressure sensor with wrong connection Defect of outdoor unit PC board Defective co...

Page 405: ...C board NO Replace the low pressure sensor YES NO Are the characteristics of the low pressure sensor normal Make a comparison between the voltage characteristics 1 and the gauge pressure YES If the PC board pressure detection normal Make a comparison between the checker pressure data and the voltage characteristics 1 1 Set the low pressure gauge upright 2 Connect the checker for VRV to the gauge C...

Page 406: ... Malfunction is detected based on the current value during waveform output before starting compressor Malfunction is detected based on the value from current sensor during synchronous operation when starting the unit Malfunction Decision Conditions Overcurrent OCP flows during waveform output Malfunction of current sensor during synchronous operation IPM failure Supposed Causes Inverter PC board A...

Page 407: ...YES YES NO Replace the lead wires Replace the compressor and compressor inverter PC board A2P at the same time Replace the inverter PC board A2P Replace the compressor inverter PC board A2P and fan inverter PC board A5P Replace the inverter PC board A2P Does the power supply normally come back ON Is the single system applied to the outdoor unit YES NO It is supposed that the malfunction results fr...

Page 408: ...lay L4 Applicable Models RXYQ72P 240PYDN PTJU REYQ72P 240PYDN PTJU Method of Malfunction Detection Fin temperature is detected by the thermistor of the radiation fin Malfunction Decision Conditions When the temperature of the inverter radiation fin increases above 188 6 F Supposed Causes Actuation of fin thermal Actuates above 188 6 F Defect of inverter PC board Defect of fin thermistor ...

Page 409: ...d control PC board 3 While in monitor mode check the outdoor unit concerned Single system Multi system Is the thermistor resistance normal NO YES Replace the thermistor Does the malfunction recur when the power supply turns ON to start the compressor NO Replace the compressor inverter PC board Continue operation It is supposed that the radiation fin temperature became high due to some field factor...

Page 410: ...SiUS34 801A_b Troubleshooting by Indication on the Remote Controller Troubleshooting 395 Inverter PC board for compressor Refer to Thermistor Resistance Temperature Characteristics table on P523 ...

Page 411: ...N PTJU REYQ72P 240PYDN PTJU Method of Malfunction Detection Malfunction is detected from current flowing in the power transistor Malfunction Decision Conditions When an excessive current flows in the power transistor Instantaneous overcurrent also causes activation Supposed Causes Defect of compressor coil disconnected defective insulation Compressor start up malfunction mechanical lock Defect of ...

Page 412: ...ES YES NO NO YES YES YES YES NO NO Power OFF Check if the stop valve is open Check if the compressor lead wires are normal Check if the wiring and connection to the compressor are normal Insulation resistance of the compressor is 100 kΩ or below Check 4 Check if the power transistor is normal Failure occurs again after restarting the unit Compressor coils are disconnected YES Replace inverter comp...

Page 413: ...flowing in the power transistor Malfunction Decision Conditions When overload in the compressor is detected Inverter secondary current 16 1A For 460V units 1 19 0A and over continues for 5 seconds 2 16 1A and over continues for 260 seconds For 230V units 1 A current of 33 5A or more continues for a period of consecutive 5 sec 2 A current of 27 6A or more continues for a period of consecutive 260 s...

Page 414: ...the compressor is 100 kΩ or below Compressor coils are disconnected Connect the compressor lead wires then restart the operation Check 4 Check if the power transistor is normal Malfunction code L8 is displayed again Checkifthe pressuredifferencebetweenhigh pressureandlowpressurebefore restartingis29psi orbelow YES YES Open the stop valve Replace compressor lead wires Correct the wiring and connect...

Page 415: ...P 240PYDN PTJU REYQ72P 240PYDN PTJU Method of Malfunction Detection Detect the failure based on the signal waveform of the compressor Malfunction Decision Conditions Starting the compressor does not complete Supposed Causes Failure to open the stop valve Defective compressor Wiring connection error to the compressor Large pressure difference before starting the compressor Defective inverter PC boa...

Page 416: ...stance of the compressor is more than 100kΩ Check if the compressor lead wires are disconnected Go on to the next page Starting failure due to aged operation Charge a right amount of refrigerant Open the stop valve Cancel the sleeping state of refrigerant Cancel the sleeping state of refrigerant Fix the compressor lead wire Correct the wiring then supply power to restart NO NO NO YES NO YES NO YES...

Page 417: ... for more than 6 hours Check if the insulation resistance of the compressor is 100kΩ or over Broken inside the compressor Cancel the sleeping state of refrigerant Replace the inverter compressor Replace the inverter compressor Replace the compressor inverter PC board Recheck the compressor refrigerant circuit NO NO NO YES NO YES YES YES Check 4 Check if the power transistor is normal Check 4 Refer...

Page 418: ...ommunication state between inverter PC board and control PC board by micro computer Malfunction Decision Conditions When the correct communication is not conducted in certain period Supposed Causes Malfunction of connection between the inverter PC board and outdoor main PC board Defect of outdoor main PC board transmission section Defect of inverter PC board Defect of noise filter Faulty fan inver...

Page 419: ... of the inverter PC board main PC board and sub PC board all securely connected Is the type of the inverter PC board correct 1 The INV compressor has insulation resistance of not more than 100kΩ The fan motor has insulation resistance of not more than 1MΩ Replace it with a correct PC board Properly connect the connectors Replace the compressor M1C Replace the fan motor NO NO NO YES YES NO YES YES ...

Page 420: ...layed malfunction code Not the LC malfunction Check the malfunction code again Replace the main PC board A1P Continue operation It is supposed that the malfunction results from causes such as instantaneous power failure Replace the inverter PC board A4P If the replaced PC board has significant damage the compressor is probably get faulty In this case carry out inspections on the compressor again N...

Page 421: ...apacitor in the inverter Consequently the increased ripple is detected Malfunction Decision Conditions When the resistance value of thermistor becomes a value equivalent to open or short circuited status Malfunction is not decided while the unit operation is continued P1 will be displayed by pressing the inspection button When the amplitude of the ripple exceeding a certain value is detected for c...

Page 422: ...ly voltage imbalance Even if the power supply voltage is not unbalanced when measuring it there are many cases where it gets unbalanced during nighttime around 6 00PM to 10 00PM No abnormalities are observed in the power supply but the imbalance in voltage recurs Explanation for users Fix power supply voltage imbalance Replace the inverter PC board YES YES NO Is an imbalance in supply voltages in ...

Page 423: ...ssing the inspection button Supposed Causes Defect of radiator fin temperature sensor Defect of inverter PC board Faulty inverter compressor Faulty fan motor Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Replace the inverter PC board NO YES NO NO YES NO Measure resistance value of the radiation fin thermistor Is the ...

Page 424: ...SiUS34 801A_b Troubleshooting by Indication on the Remote Controller Troubleshooting 409 Inverter PC board for compressor Refer to Thermistor Resistance Temperature Characteristics table on P523 ...

Page 425: ...lay PJ Applicable Models RXYQ72P 240PYDN PTJU REYQ72P 240PYDN PTJU Method of Malfunction Detection This malfunction is detected according to communications with the inverter Malfunction Decision Conditions Make judgment according to communication data on whether or not the type of the inverter PC board is correct Supposed Causes Faulty or no field setting after replacing main PC board Mismatching ...

Page 426: ...S YES YES YES NO NO NO Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Make correct setting of DIP switch For setting procedure refer to information on page 97 244 Replace it with the correct compressor inverter PC board Was the PC board A1P replaced with a substitute PC board Is the type of the compressor inverter PC board correct 1 ...

Page 427: ...pipe and heat exchanger Malfunction Decision Conditions In cooling mode Low pressure becomes 14 5psi or below In heating mode The degree of superheat of suction gas becomes 36 degrees and over SH Ts1 Te Ts1 Suction pipe temperature detected by thermistor Te Saturated temperature corresponding to low pressure Malfunction is not determined The unit continues operation Supposed Causes Gas shortage or...

Page 428: ...3 Replace the thermister Replace the main PC board With individual systems replace the control PC board 1 A1P or the control PC board 3 A3P With multi systems replace the main PC board A1P NO NO YES Reset the operation using the remote controller then restart Set up a pressure gauge at the service port on the low pressure side Reset the operation using the remote controller then restart 3 Compare ...

Page 429: ...rse phase Power supply open phase Defect of outdoor PC board A1P Troubleshooting V2820 Operation is normal if one place of power supply line phase is replaced Fix the open phase Requires inspection of field power supply section Reverse phase Counter measure of the problem is completed by phase replacement Replace outdoor unit PC board A1P With single systems replace the control PC board 1 A1P or t...

Page 430: ...n the inverter and power supply voltage Malfunction Decision Conditions When the voltage aforementioned is not less than 780V or not more than 320V or when the current limiting voltage does not reach 200V or more or exceeds 740V For 230V units When the voltage aforementioned is not more than 190V Supposed Causes Power supply insufficient Instantaneous power failure Open phase Defect of inverter PC...

Page 431: ...rrect the unbalanced loads to eliminate the unbalanced state Unbalanced voltage will cause extremely unbalanced current thus impairing the service life of or resulting in the malfunction of the equipment NO NO YES YES YES YES YES YES NO NO NO NO NO NO Check for power supply voltage Voltage between phases 380 to 415V Phase voltage 220 to 240V Unbalanced power supply Not more than 2 Phase voltage of...

Page 432: ...replace it if necessary End of measures The malfunction may temporarily result from on site causes Causes Instantaneous power failure open phase noises or else YES YES YES YES YES NO NO NO NO NO Check for connector connections Remove and insert the connectors shown below Furthermore check the connectors for terminal conditions and continuity X1M power receiving terminal X400A A3P A3P X401A X10A A4...

Page 433: ...osed Causes Check operation is not executed Troubleshooting V3052 Performs the chech operation again and completes the check operation When a leakage detection function is needed normal operation of charging refrigerant must be completed And then start once again and complete a check operation Has the check operation performed on Outdoor unit PC board Press and hold BS4 on the outdoor master PC bo...

Page 434: ...smission between indoor and outdoor units is normal Malfunction Decision Conditions When transmission is not carried out normally for a certain amount of time Supposed Causes Indoor to outdoor outdoor to outdoor transmission wiring F1 F2 disconnection short circuit or wrong wiring Outdoor unit power supply is OFF System address doesn t match Defect of indoor unit PC board Defect of outdoor unit PC...

Page 435: ...ion wiring YES NO NO YES Has the indoor or outdoor unit PC board been replaced or has the indoor outdoor or outdoor outdoor unit transmission wiring been modified All indoor unit remote controllers of the same refrigerant system display U4 NO Outdoor unit PC board microcomputer monitor HAP blinks NO NO NO Operation ready lamp H2P is blinking Lamp does not go off for 12 minutes or more Is indoor ou...

Page 436: ...sure sensor is connected to X32A of outdoor unit PC board A1P Connect low pressure sensor property and restart system YES NO The low pressure sensor is connected to X31A blue of outdoor unit PC board A1P The relationship between the 1 VH and high pressure is normal see 2 when voltage is measured between X32A pins 1 and 3 of outdoor unit PC board A1P see 1 Replace the low pressure sensor NO The rel...

Page 437: ...ore connect or disconnect connector or parts damage may be occurred The relationship between the 1 VH and high pressure is normal see 2 when voltage is measured between X32A pins 1 and 3 of outdoor unit PC board A1P see 1 Replace the high pressure sensor Connect the high pressure sensor and turn on again NO NO Replace outdoor unit PC board A1P YES YES The high pressure sensor is connected to X32A ...

Page 438: ... connect or disconnect connector or parts damage may be occurred The relationship between the 3 VH and low pressure is normal see 4 when voltage is measured between X31A pins 2 and 3 of outdoor unit PC board A1P see 3 Replace the low pressure sensor Connect low pressure sensor property and restart system NO NO Replace outdoor unit PC board A1P YES YES The low pressure sensor is connected to X31A b...

Page 439: ...trollers Defect of indoor unit PC board Defect of remote controller PC board Malfunction of transmission caused by noise Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred V2823 NO NO NO YES NO Replace indoor unit PC board Set one remote controller to SUB turn the power supply off once and then back on There is possibilit...

Page 440: ...s Malfunction Decision Conditions When transmission is not carried out normally for a certain amount of time Supposed Causes Connection error in connecting wires between outdoor unit and outdoor unit outside control adapter Connection error in connecting wires across outdoor units Setting error in switching cooling heating Integrated address setting error for cooling heating function unit outdoor ...

Page 441: ... the slave unit 2 Go on to the Diagnosis Flow 5 Multi connection REYQ units Go on to the Diagnosis Flow 6 Erroneous manual address settings of the slave units 1 and 2 Go on to the Diagnosis Flow 7 Connection of four or more outdoor units to the same circuit Go on to the Diagnosis Flow 8 Faulty auto address of the slave units 1 and 2 Check the LED lamps for Check 3 corresponding to the malfunction ...

Page 442: ...ace the outdoor unit main PC board NO YES NO Correct the connecting wiring with the outside control adapter Diagnosis Flow 1 Check if any disconnection or connection error is detected in connecting wires with outside control adapter Supply power to the outdoor unit Check if power is supplied to the outdoor units Check if the normal condition monitor LED for the outdoor unit PC board blinks Check i...

Page 443: ...mal condition monitor LED for the outdoor unit main PC board blinks Check if the outdoor unit is powered on Check if the power supply wire for the external control adaptor for outdoor unit is connected to 5V supply line Check if the normal condition monitor LED for the external control adaptor for outdoor unit blinks Set the cooling heating switch of the external control adaptor for outdoor unit t...

Page 444: ...ng wires of Multi Slave 2 with outdoor multi Check if the wiring is disconnected or is about to be disconnected Check if the outdoor unit REYQ8 16PY1 is connected to multi system Check 3 Check the connection status of connecting wires of Multi Slave 1 with outdoor multi Check if the wiring is disconnected or is about to be disconnected Replace the outdoor unit main PC board of the Multi Slave 1 Co...

Page 445: ...door unit Correct the connecting wires of the outdoor multi and then reset the power supply Diagnosis Flow 7 Diagnosis Flow 8 Check the connection status of one of the connecting wires of Outdoor Multi Check if the wiring is broken or disconnected YES NO Correct the manual address settings For detail refer to information in the AirNet Installation Manual Are manual address settings of the slave un...

Page 446: ...not continue for specified period Supposed Causes Malfunction of transmission between main and sub remote controller Connection between sub remote controllers Defect of remote controller PC board Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred V2825 SS1 of both remote controllers is set to SUB Set SS1 to MAIN the power...

Page 447: ...mission within or outside of other system Malfunction of electronic expansion valve in indoor unit of other system Defect of PC board of indoor unit in other system Improper connection of transmission wiring between indoor and outdoor unit Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred The outdoor unit PC board indica...

Page 448: ... the type of refrigerant between indoor and outdoor units The number of indoor units is out of the allowable range Incorrect signals are transmitted among the indoor unit BS unit and outdoor unit Malfunction Decision Conditions The malfunction decision is made as soon as either of the abnormalities aforementioned is detected Supposed Causes Excess of connected indoor units Defect of outdoor unit P...

Page 449: ... Check 4 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred To Diagnosis Flow 4 Faulty wiring in units dedicated to multi connections Check 3 Check 4 To Diagnosis Flow 5 Connection of erroneous models of BS units Check 3 Check 4 To Diagnosis Flow 6 Faulty wiring between outdoor units and BS units Check 3 Check 4 To Diagnosis Flow 7 Fault...

Page 450: ...e the main PC board of the outdoor unit With single systems replace the control PC board 1 A1P With multi systems replace the main PC board A1P Match the refrigerant types of the outdoor unit and the indoor unit Check 3 Check 4 Diagnosis Flow 1 Check 3 Check 4 Diagnosis Flow 2 The number of indoor units connected to the same refrigerant circurt system should not be more than 64 units Check if the ...

Page 451: ...arts PC board Check if the unit is not connected to outdoor units of different models Check if the outdoor unit PC board is replaced with PC board for spare parts Check if the spare parts PC board setting is correct Check 3 Check 3 Check 4 Check 4 NO YES Is a correct substitute PC board procured Replace it with the correct substitute PC board NO YES Correct the connection wirings Replace the main ...

Page 452: ... model BSVQ P Replace the outdoor unit PC board as shown below With single systems replace the control PC board 1 A1P With multi systems replace the main PC board A1P Is the model BSVQ P connected Check 3 Check 3 Check 4 Check 4 YES NO Correct the wiring Replace the outdoor unit PC board as shown below With single systems replace the control PC board 1 A1P With multi systems replace the main PC bo...

Page 453: ...iring between the BS units correct Check 3 Check 3 Check 4 Check 4 YES NO Correct the connection wiring Replace the indoor unit or BS unit PC board Is the connection wiring between the indoor unit and the BS unit correct Diagnosis Flow 9 Check 3 Check 4 YES YES NO Replace PC board Remove the BS unit Is the BS unit connected by heat pump equipment Diagnosis Flow 10 Check 3 Check 4 NO Replace PC boa...

Page 454: ...nit detects the same address as that of its own on any other indoor unit Malfunction Decision Conditions The malfunction decision is made as soon as the abnormality aforementioned is detected Supposed Causes Address duplication of centralized controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Make setting chang...

Page 455: ...Detection Microcomputer checks if transmission between indoor unit and centralized controller is normal Malfunction Decision Conditions When transmission is not carried out normally for a certain amount of time Supposed Causes Malfunction of transmission between optional controllers for centralized control and indoor unit Connector for setting master controller is disconnected or disconnection of ...

Page 456: ...ing length types of cables and wires number of units connected and others If no problems replace the indoor unit PC board NO YES Continued to A on the following page YES Check the indoor unit for which UE is displayed Is the the transmission malfunction UE caused on all indoor units Is the power supply of the indoor unit on which the UE occurred turned ON Has the setting of central control group N...

Page 457: ...ertoP 466 A Has the master unit central setting connector been connected NO Correct the wiring Abnormal Correct the connection of the connector NO YES YES Check the transmission wiring with the master unit central equipment for any broken wire For details refer to information in the Procedure for checking broken wires section RefertoP 466 Disconnect the transmission wiring of the master unit centr...

Page 458: ...e to execute check operation Defect of indoor unit PC board Stop valve is left in closed Troubleshooting Note Wiring check operation may not be successful if carried out after the outdoor unit has been off for more than 12 hours or if it is not carried out after running all connected indoor units in the fan mode for at least an hour Caution Be sure to turn off power switch before connect or discon...

Page 459: ...RXYQ72P 240PYDN PTJU REYQ72P 240PYDN PTJU Method of Malfunction Detection Detect an indoor unit with no address setting Malfunction Decision Conditions The malfunction decision is made as soon as the abnormality aforementioned is detected Supposed Causes Improper connection of transmission wiring between indoor outdoor units and outdoor outdoor units Defect of indoor unit PC board Defect of outdoo...

Page 460: ...nnect the outdoor outdoor unit transmission wiring to create the one system status and then check whether or not the system is normal NO Does a UH malfunction occur for all indoor units in the system YES NO Does a malfunction occur even after 12 minutes elapses from the time when electricity is introduced to indoor and outdoor units YES Replace indoor unit PC board Replace outdoor unit PC board A1...

Page 461: ...d at the same time Supposed Causes Defect of central remote controller PC board Defect of Intelligent Touch Controller PC board Defect of Schedule timer PC board Troubleshooting Replace the central remote controller Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the M1 displayed again Replace the central equipment Central equipmen...

Page 462: ...ntroller Schedule timer Method of Malfunction Detection DIII NET transmission data The system will be automatically reset Malfunction Decision Conditions When no master controller is present at the time of the startup of slave controller When the connected centralized controller shows no response Supposed Causes Malfunction of transmission between optional controllers for centralized control Defec...

Page 463: ...ndoor unit NO Have power supplies to every central equipment been turned ON Is the display of LCD OK NO YES Nothing is displayed on the LCD by operating intelligent Touch controller 1 NO Has the Reset switch located inside of equipment SS1 been set to the Normal side Reset the power supplies of every central equipment YES Abnormal Were any changes made to the number of units of central equipment T...

Page 464: ...er Method of Malfunction Detection DIII NET transmission dataMalfunction Decision Conditions When the schedule timer is set to individual use mode but other central components are present When multiple master controllers are present When the remote control adapter is present Supposed Causes Improper combination of optional controllers for centralized control More than one master controller is conn...

Page 465: ...central connector is connected and then reset power supplies of every central equipment Disconnect the master unit central setting connector and connect this connector to different central equipment and then reset power supplies of every central equipment Central equipment to which the master unit central setting connector is connected at the time when the malfunction code is cleared is faulty Rep...

Page 466: ... Touch Controller Schedule timer Method of Malfunction Detection DIII NET transmission dataMalfunction Decision Conditions Two or more units of central remote controllers and Intelligent Touch Controllers are connected and all of them are set to master unit central setting or slave unit central setting Two units of schedule timers are connected Supposed Causes Address duplication of centralized co...

Page 467: ... intelligent Touch controller Is the Master Slave setting of the central equipment correct Was the central equipment connected once and then disconnected or was additional central equipment installed Is the MC displayed again With MC displayed Without MC displayed Is the Master Slave setting of the central equipment correct YES YES If the intelligent Touch controller is used correct the setting of...

Page 468: ...le Models All model of indoor units Unified ON OFF controller Method of Malfunction Detection DIII NET transmission dataMalfunction Decision Conditions Malfunction of transmission between optional central controller and indoor unit Supposed Causes Connector for setting master controller is disconnected Defect of unified ON OFF controller PC board Defect of indoor unit PC board Malfunction of air c...

Page 469: ...aster controller disconnected Set the group No correctly Replace the central PC board Fix the wiring correctly Fix the wiring correctly Connect the connector correctly Replace the central PC board Reset power supply for all optional controllers for centralized control simultaneously NO YES NO YES NO NO NO Turn the power supply of the indoor unit on YES NO YES YES YES YES NO Has a once connected in...

Page 470: ...ralized controller which was connected once shows no response The control ranges are overlapped When multiple master central controller are present When the schedule timer is set to individual use mode other central controller is present When the wiring adaptor for electrical appendices is present Supposed Causes Address duplication of optional controllers for centralized control Improper combinat...

Page 471: ...r or schedule timer NO YES YES NO NO Fix the wiring correctly Set reset switch to normal NO NO YES YES YES Is the power supply turned on for all optional controllers for centralized control Reset power supply simultaneously for all optional controllers for centralized control NO YES Has a once connected optional controller for centralized control been disconnected or its address changed Is the cen...

Page 472: ...ontroller for centralized control and reset the power supply for all optional controllers for centralized control simultaneously Disconnect the connector for setting master controller from the master controller connect to another optional controller for centralized control and simultaneously reset all optional controllers for centralized control again The controller connected by the connector for ...

Page 473: ...ddress group No is not set for indoor unit Improper control range setting switch Improper wiring of transmission wiring Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred V2844 Is the control range setting switch set correctly Is the transmission wiring disconnected or wired incorrectly Replace the unified ON OFF controll...

Page 474: ...HECK 2 1 Turn off the power supply 2 While disconnected measure the resistance between Vcc and each phase of U V W and GND and each phase at the motor side connectors five core wire to check that the values are balanced within the range of 20 To use a multiple meter for measurement connect the probe of negative pole to Vcc and that of positive pole to GND Red White Black U V W Measure the resistan...

Page 475: ...ister resistance property is normal Check if the piping temperature connected to the 4 way switch valve is normal Check if the pressure value given by the service checker corresponding to actual measurement value by the sensor Check if coil resistance and insulation are normal Check if the connector is connected properly Check if the thermister resistance property is normal Check if the connector ...

Page 476: ...alue mode in the range of multiplying 1kΩ Point of Measurement Judgment Criteria Remarks No 15kΩ and above including 2 15kΩ 2 15kΩ Due to condenser charge and so on resistance measurement may require some time P2 P2 P2 U V W N3 N3 N3 U V W 1 2 3 4 5 6 7 8 9 10 11 12 P2 P2 P2 U V W U V W N3 N3 N3 Point of Measurement Judgment Criteria Remarks No 0 3 0 7V 1 2V and over 1 2V and over Due to condenser...

Page 477: ...orresponding to the measurement of the pressure sensor In cooling High suction air temperature of the condenser In heating High suction air temperature of outdoor unit Short circuit High ambient temperature Is the suction air temperature not more than 109 4 F Is the outdoor temperature not more than 109 4 F High suction air temperature of indoor unit High ambient temperature Is the suction air tem...

Page 478: ...k for the thermistor resistance and connection In cooling Low suction air temperature of the evaporator In heating Low suction air temperature of indoor unit Short circuit Is the suction air temperature not less than 57 2 F Is the indoor temperature not more than 57 2 F Low ambient temperature Faulty suction air thermistor of indoor unit Is the connector properly connected Are the thermistor resis...

Page 479: ... in places before the said place with continuity 2 Procedure for checking indoor outdoor unit transmission wiring for broken wires of the Outdoor Unit C for broken wires Turn OFF the power supply to all equipment short circuit between the indoor outdoor unit terminal parts F1 and F2 in the Outdoor Unit C and then conduct continuity checks between the transmission wirings F1 and F2 of the Indoor Un...

Page 480: ...hedule timer are not available for combined use 2 The intelligent Touch controller central remote controller and the unified ON OFF controller have been set to Provided with the master unit central setting connector at the factory The schedule timer has been set to Not provided with the master unit central setting connector at the factory which is attached to the casing of the main unit Pattern Ce...

Page 481: ...ith those described in the list of Setting of master unit central setting connector 1 2 3 4 Pattern 1 00 4 15 Master Slave 5 00 8 15 Master Slave 1 00 4 15 Master Slave 5 00 8 15 Master Slave N CRC Master CRC Master CRC Slave CRC Slave O CRC Master CRC Slave P Intelligent Touch controller Master Intelligent Touch controller Slave Q CRC Master Intelligent Touch controller Slave R Intelligent Touch ...

Page 482: ...ce and insulation Refer to information in the Check 11 section Are the voltage characteristics normal Is the connector correctly connected Does the thermistor have normal resistance characteristics Is the pressure reading of the service checker corresponding to the actual measurement of the sensor Can the fan motor be rotated by hand Does the fan motor coil have normal resistance and insulation Do...

Page 483: ...emperature of outlet air passing through the subcooled section becomes lower Cooling High pressure Low pressure Frequency High pressure drooping control LP is maintained at a constant level To maintain LP frequency increases under the capacity control HP gradually rises with increase in frequency Frequency comes to the minimum level Supercooled degree becomes higher Liquid connection pipe temperat...

Page 484: ... larger Either of the motorized valves becomes fully open Frequency comes to the minimum level Fan control is activated for HP protection under cooling control at low outdoor temperature i e the fan is hunting at HP HP drops with decrease in compressor capacity If frequency comes to the minimum level LP cannot be maintained LP rises as the opening degree of the indoor unit motorized valve becomes ...

Page 485: ...ssor at the degree of vacuum of 14 60psi or less for a period of one hour or more and then check to be sure that the vacuum gauge reading does not rise If the reading rises moisture may have remained in the system or there may be refrigerant leakage P Refrigerant charge Purge air from the manifold gauge connection hoses and then charge the appropriate quantity of refrigerant Special vacuuming and ...

Page 486: ...he compressor motor fails to start up Liquid sealing or faulty compressor Excessive oil or refrigerant Faulty inverter PC board E5 Inverter compressor lock The compressor is in the locked status does not rotate Faulty compressor L4 Radiator fin temperature rise The radiator fin temperature reaches 188 6 F or more while in operation Malfunction of fan Running in overload for an extended period of t...

Page 487: ...ions between the main PC board and the inverter PC board are not normal Main Control PC board Weak current part Heavy current part Power transmission etc Inverter PC board Compressor Power supply 3 phase 460VAC 3 phase 230VAC Current Time L5 L8 L8 Instantaneous overcurrent Compressor overcurrent Electronic thermal 2 Compressor overcurrent Electronic thermal 1 Max control When the heavy current par...

Page 488: ...it 509 3 List of Electrical and Functional Parts 510 3 1 Outdoor Unit 510 3 2 Indoor Side 514 4 Option List 518 4 1 Option List of Controllers 518 4 2 Option Lists Outdoor Unit 519 5 Piping Installation Point 520 5 1 Piping between Outside Units 520 6 Thermistor Resistance Temperature Characteristics 523 7 Pressure Sensor 525 8 Method of Checking the Inverter s Power Transistors and Diode Modules ...

Page 489: ...Piping Diagrams SiUS34 801A_b 474 Appendix 1 Piping Diagrams 1 1 Outdoor Unit Heat Pump 460V RXYQ72 96 120PYDN 3D058636A ...

Page 490: ...SiUS34 801A_b Piping Diagrams Appendix 475 Heat Pump 230V RXYQ72 96 120PTJU 3D058636A ...

Page 491: ...Piping Diagrams SiUS34 801A_b 476 Appendix Heat Pump 230V RXYQ144PTJU 3D058640 ...

Page 492: ...SiUS34 801A_b Piping Diagrams Appendix 477 Heat Recovery 460V REYQ72 96 120PYDN 3D058639A ...

Page 493: ...Piping Diagrams SiUS34 801A_b 478 Appendix Heat Recovery 460V REMQ72PYDN 3D058637A ...

Page 494: ...SiUS34 801A_b Piping Diagrams Appendix 479 Heat Recovery 460V REMQ96 120PYDN 3D058638A ...

Page 495: ...Piping Diagrams SiUS34 801A_b 480 Appendix Heat Recovery 230V REYQ72 96 120PTJU 3D058639A ...

Page 496: ...SiUS34 801A_b Piping Diagrams Appendix 481 Heat Recovery 230V REYQ144PTJU 3D058640 ...

Page 497: ...Piping Diagrams SiUS34 801A_b 482 Appendix Heat Recovery 230V REMQ72PTJU 3D058637A ...

Page 498: ...SiUS34 801A_b Piping Diagrams Appendix 483 Heat Recovery 230V REMQ96 120PTJU 3D058638A ...

Page 499: ...M 09M 12M 18M 24MVJU FXLQ 12M 18M 24MVJU FXNQ 12M 18M 24MVJU R1T Thermistor for return air temperature R2T Thermistor for liquid line temperature R3T Thermistor for gas line temperature J DU220 602J Heat exchanger Gas piping connection port Liquid piping connection port Fan R3T R1T Electronic expansion valve Filter Filter R2T Capacity GAS Liquid 07 09 12 18M φ1 2 φ1 4 24 30 36 48M φ5 8 φ3 8 ...

Page 500: ...SiUS34 801A_b Piping Diagrams Appendix 485 FXDQ Refrigerant pipe connection port diameters 4D043864J Model Gas Liquid FXDQ07M 09M 12M 18MVJU φ1 2 φ1 4 FXDQ24MVJU φ5 8 φ3 8 ...

Page 501: ...Piping Diagrams SiUS34 801A_b 486 Appendix 1 3 BS Unit 4D057985A ...

Page 502: ...ISCHARGE A1P WHT W U V 5 X18A T2A N 1 P1 N1 MAGNETIC CONTACTOR M1C A4P H4P BLU ELECTRONIC EXPANSION VALVE SUBCOOL A1P MAGNETIC RELAY E1HC A1P F2 MAGNETIC CONTACTOR M2C t POWER SUPPLY K1R PRINTED CIRCUIT BOARD MAIN THERMISTOR HEAT EXC LIQUID A1P X3A X12A X401A N3 RED WHT BLK POWER MODULE A5P P P PRINTED CIRCUIT BOARD NOISE FILTER X9A t t X1A HAP THERMISTOR AIR A1P X4A R90 FUSE T 6 3A 250V A3P A1 S2...

Page 503: ... PHASE REVERSAL DETECT CIRCUIT A1P Y3S R8T PRINTED CIRCUIT BOARD INV FAN R112 R502 SWITCHING POWER SUPPLY A1P A3P Z1F A1P MAGNETIC RELAY K2M A1P MOTOR COMPRESSOR A3P Y7S PS R2T POWER MODULE A3P K1R S1PH S2PH Y5S Y3E K1M K2M R9T Y4S K2R MAGNETIC RELAY CURRENT LIMITING A3P K7R K8R REACTOR A3P DIODE BRIDGE A3P F1U F2U FUSE 16A DC450V A3P HAP MAGNETIC RELAY Y8S A2P MAGNETIC RELAY FOR OPTION A2P R7T TE...

Page 504: ...L 1 ELECTRONIC EXPANSION VALVE MAIN 2 ELECTRONIC EXPANSION VALVE CHARGE ELECTRONIC EXPANSION VALVE SUBCOOL 2 SOLENOID VALVE RMTG X501A 6 X23A HAP Y8S BLK X504A X7A UNIT IN D TO BLU K2R A5P F1 F2 indoor L1 V2R K5R M1C F1 F2 outdoor R12T Y9S X3A C1 X23A X1M V1R X20A BLU L2A M t NOTE 4 N 3 Z3C WHT BS5 X8A BLK K7R POWER SUPPLY M F1U RED X37A R11T X7A F1 UNIT MULTI TO K84R X502A H8P 5 BLK X7A V3R K11R ...

Page 505: ...R PRINTED CIRCUIT BOARD INV PRINTED CIRCUIT BOARD FAN PRINTED CIRCUIT BOARD FAN PRINTED CIRCUIT BOARD CURRENT SENSOR PRINTED CIRCUIT BOARD GROUND LEAKAGE DETECTOR PUSH BUTTON SWITCH MODE SET RETURN TEST RESET CAPACITOR CAPACITOR CRANKCASE HEATER A1P CRANKCASE HEATER A3P FUSE T 3 15A 250V A1P A3P FUSE T 3 15A 250V A2P FUSE 8A DC650V A6P A7P FUSE T 6 3A 250V A4P MAGNETIC RELAY A5P MAGNETIC CONTACTOR...

Page 506: ...Y2E Z1C 9C K2R K3 K6R K1R K3R M1F R90 R95 R1T K3R PS R10 K4 K4R Q1RP K5R K11R K7R R50 R59 L1R K5R M1C CURRENT SENSOR A7P THERMISTOR SUB COOL HEAT EXC GAS A1P TRANSFORMER 460V 230V THERMISTOR LIQUID A2P PRESSURE SENSOR LOW A1P THERMISTOR SUB COOL HEAT EXC LIQUID A1P THERMISTOR FIN A4P POWER MODULE A4P CONNECTOR M1F CONNECTOR CONNECTOR CONNECTOR THERMISTOR SUCTION A2P THERMISTOR M1C DISCHARGE A1P TH...

Page 507: ... T2A N 1 P1 N1 MAGNETIC CONTACTOR M1C A4P H4P BLU ELECTRONIC EXPANSION VALVE SUBCOOL A1P MAGNETIC RELAY E1HC A1P F2 MAGNETIC CONTACTOR M2C t POWER SUPPLY K1R PRINTED CIRCUIT BOARD MAIN THERMISTOR HEAT EXC LIQUID A1P X3A X12A X401A N3 RED WHT BLK POWER MODULE A5P P P PRINTED CIRCUIT BOARD NOISE FILTER X9A t t X1A HAP THERMISTOR AIR A1P X4A R90 FUSE T 6 3A 250V A3P A1 S2PH PRESSURE SWITCH HIGH A1P A...

Page 508: ... SAFETY DEVICES INPUT A1P A3P THERMISTOR SUB COOL HEAT EXC GAS 2 A3P THERMISTOR LIQUID 2 A3P THERMISTOR HEAT EXC LIQUID 2 A3P CONNECTOR DIODE BRIDGE A4P PRESSURE SWITCH HIGH A1P ELECTRONIC EXPANSION VALVE MAIN 1 A1P CURRENT SENSOR A6P POWER MODULE A5P TERMINAL STRIP POWER SUPPLY ELECTRONIC EXPANSION VALVE SUBCOOL 1 A1P TERMINAL STRIP CONTROL A1P A3P ELECTRONIC EXPANSION VALVE MAIN 2 A3P PRESSURE S...

Page 509: ...OOL 1 ELECTRONIC EXPANSION VALVE MAIN 2 ELECTRONIC EXPANSION VALVE CHARGE ELECTRONIC EXPANSION VALVE SUBCOOL 2 SOLENOID VALVE RMTG X501A 6 X23A HAP Y8S BLK X504A X7A UNIT IN D TO BLU K2R A5P F1 F2 indoor L1 V2R K5R M1C F1 F2 outdoor R12T Y9S X3A C1 X23A X1M V1R X20A BLU L2A M t NOTE 4 N 3 Z3C WHT BS5 X8A BLK K7R POWER SUPPLY M F1U RED X37A R11T X7A F1 UNIT MULTI TO K84R X502A H8P 5 BLK X7A V3R K11...

Page 510: ...E TEST FLICKERING MALFUNCTION DETECTION LIGHT UP PILOT LAMP SERVICE MONITOR GREEN A1P A2P MAGNETIC RELAY M1C A3P MAGNETIC RELAY Y5S A2P MAGNETIC RELAY Y6S A2P X1A R1T BS3 Q1RP X4A A4P Y8S BLU M BLU A2P X7A t X2A P R5T K4R A1P Y1E BLK Q2 F1 K1M Y5S WHT H7P N 3 Z3C 5 F1U V2R X21A M1F R2T R31T R4T R5T R6T R7T R8T R9T S1NPH S2NPL S1PH T2A V1CP V1R V2R V3R X1A X2A X3A X1M t NOTE 4 H5P X2A X3A R31T THER...

Page 511: ...5 PHASE REVERSAL DETECT CIRCUIT A1P Y3S R8T PRINTED CIRCUIT BOARD INV FAN R112 R502 SWITCHING POWER SUPPLY A1P A3P Z1F A1P MAGNETIC RELAY K2M A1P MOTOR COMPRESSOR A3P Y7S PS R2T POWER MODULE A3P K1R S1PH S2PH Y5S Y3E K1M K2M R9T Y4S K2R MAGNETIC RELAY CURRENT LIMITING A3P K7R K8R REACTOR A3P DIODE BRIDGE A3P F1U F2U FUSE 16A DC450V A3P HAP MAGNETIC RELAY Y8S A2P MAGNETIC RELAY FOR OPTION A2P R7T T...

Page 512: ...sts the possibility of reversed phase lose phase momentary blackout or the power goes on and off while the product is operating attach a reversed phase protection circuit locally Running the product in reversed phase may break the compressor and other parts L2 FUSE L1 TRANSMISSION LINE SWITCH L2 L1 L2 TRANSMISSION LINE L2 TRANSMISSION LINE Notes 1 All wiring components and materials to be procured...

Page 513: ... this system consists of the equipment utilizing the multiple power sources 10 The capacity of UNIT1 must be larger than UNIT2 when the power source is connected in series between the units 11 If there exists the possibility of reversed phase lose phase momentary blackout or the power goes on and off while the product is operating attach a reversed phase protection circuit locally Running the prod...

Page 514: ...e possibility of reversed phase lose phase momentary blackout or the power goes on and off while the product is operating attach a reversed phase protection circuit locally Running the product in reversed phase may break the compressor and other parts L2 FUSE L1 TRANSMISSION LINE SWITCH L2 L1 L2 TRANSMISSION LINE L2 TRANSMISSION LINE Notes 1 All wiring components and materials to be procured on th...

Page 515: ...his system consists of the equipment utilizing the multiple power sources 10 The capacity of UNIT1 must be larger than UNIT2 when the power source is connected in series between the units 11 If there exists the possibility of reversed phase lose phase momentary blackout or the power goes on and off while the product is operating attach a reversed phase protection circuit locally Running the produc...

Page 516: ...rials to be procured on the site must comply with the applicable local and national codes 2 Use copper conductors only 3 As for details see wiring diagram 4 Install ground fault circuit interrupter for safety 5 All field wiring and components must be provided by licensed electrician 6 Unit shall be grounded in compliance with the applicable local and national codes 7 Wiring shown are general point...

Page 517: ...s 1 All wiring components and materials to be procured on the site must comply with the applicable local and national codes 2 Use copper conductors only 3 As for details see wiring diagram 4 Install ground fault circuit interrupter for safety 5 All field wiring and components must be provided by licensed electrician UNIT 1 UNIT 2 POWER SUPPLY POWER SUPPLY L1 L2 L1 L2 L3 L3 L1 L2 L3 COOLING ONLY UN...

Page 518: ...terials to be procured on the site must comply with the applicable local and national codes 2 Use copper conductors only 3 As for details see wiring diagram 4 Install ground fault circuit interrupter for safety 5 All field wiring and components must be provided by licensed electrician 6 Unit shall be grounded in compliance with the applicable local and national codes 7 Wiring shown are general poi...

Page 519: ... 1 All wiring components and materials to be procured on the site must comply with the applicable local and national codes 2 Use copper conductors only 3 As for details see wiring diagram 4 Install ground fault circuit interrupter for safety 5 All field wiring and components must be provided by licensed electrician UNIT 1 UNIT 2 POWER SUPPLY POWER SUPPLYL1 L2 L1 L2 L3 L3 L1 L2 L3 COOLING ONLY UNIT...

Page 520: ...LLATION MANUAL ATTACHED THE UNIT 5 REMOTE CONTROLLER MODEL VARIES ACCORDING TO THE COMBINATION SYSTEM CONFIRM ENGINEERING MATERIALS AND CATALOGS ETC BEFORE CONNECTING 6 SYMBOLS SHOW AS FOLLOWS RED RED BLK BLACK WHT WHITE YLW YELLOW PNK PINK ORG ORANGE GRN GREEN BLU BLUE THERMISTOR COIL LIQUID MOTOR DRAIN PUMP LIGHT EMITTING DIODE DEFROST ORANGE TRIAC CONNECTOR WIRING ADAPTOR FOR ELECTORICAL APPEND...

Page 521: ...Wiring Diagrams for Reference SiUS34 801A_b 506 Appendix FXDQ07M 09M 12M 18M 24MVJU FXSQ12M 18M 24M 30M 36M 48MVJU 3D050501A 3D043177A ...

Page 522: ...SiUS34 801A_b Wiring Diagrams for Reference Appendix 507 FXMQ30M 36M 48MVJU FXAQ07M 09M 12M 18M 24MVJU 3D043176A 3D046039C ...

Page 523: ...Wiring Diagrams for Reference SiUS34 801A_b 508 Appendix FXHQ12M 24M 36M FXLQ12M 18M 24MVJU FXNQ12M 18M 24MVJU 3D048116 3D045644A ...

Page 524: ...E ELECTRIC EXPANSION VALVE SUB SUCTION DS1 DS2 ELECTRIC EXPANSION VALVE MAIN SUCTION TERMINAL STRIP C H SELECTOR SWITCHING POWER SUPPLY A1P TERMINAL STRIP POWER X2A HAP CONNECTOR WIRING EXTERNAL CONTROL ADAPTOR FOR OUTDOOR UNIT BSVQ60PVJU BSVQ36PVJU OFF ON DS1 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 DS2 DS2 DS1 OFF ON FOR USING DIP SWITCH DS1 2 REFER TO INSTALLATION MANUAL OR SERVICE PRECAUTION LABEL ON E...

Page 525: ...nt charge Y2E Fully closed 0pls Fully open 480pls Electronic expansion valve Subcool Y3E Fully closed 0pls Fully open 480pls Pressure protection Highpressure switch For M1C S1PH OFF 580 psi ON 435 21 75psi For M2C S2PH OFF 580 psi ON 435 21 75psi Low pressure sensor SENPL OFF 10 15psi Temperature protection Discharge gas temperature protection Discharge pipe thermistor R3T OFF 275 F Inverter fin t...

Page 526: ...n valve Subcool Y2E Fully closed 0pls Fully open 480pls Electronic expansion valve Refrigerant charge EV 0 480pls Pressure protection Highpressure switch For M1C S1PH OFF 580 psi ON 435 21 75psi For M2C S2PH OFF 580 psi ON 435 21 75psi Low pressure sensor SENPL OFF 10 15psi Temperature protection Discharge gas temperature protection Discharge pipe thermistor R3T OFF 275 F Inverter fin temperature ...

Page 527: ...closed 0pls Fully open 480pls Electronic expansion valve Subcool Y3E Fully closed 0pls Fully open 480pls Pressure protection Highpressure switch For M1C S1PH OFF 580 psi ON 435 21 75psi For M2C S2PH Low pressure sensor SENPL OFF 10 15psi Temperature protection Discharge gas temperature protection Discharge pipe thermistor R3T OFF 275 F Inverter fin temperature protection Radiator fin thermistor R1...

Page 528: ... closed 0pls Fully open 480pls Electronic expansion valve Subcool Y3E Fully closed 0pls Fully open 480pls Pressure protection Highpressure switch For M1C S1PH OFF 580 psi ON 435 21 75psi For M2C S2PH OFF 580 psi ON 435 21 75psi Low pressure sensor SENPL OFF 10 15psi Temperature protection Discharge gas temperature protection Discharge pipe thermistor R3T OFF 275 F Inverter fin temperature protecti...

Page 529: ...8605 3 φ8 L630 20kΩ 77 F Thermistor Heat Exchanger R2T ST8602A 3 φ6 L630 20kΩ 77 F Others Float Switch S1L FS 0211 Fuse F1U 250V 5A φ5 2 Transformer T1R TR25H25R0 Parts Name Symbol Model Remark FXZQ 07M7VJU FXZQ 09M7VJU FXZQ 12M7VJU FXZQ 18M7VJU Remote Controller Wired Remote Controller BRC1D71 Option Wireless Remote Controller BRC7E530W Motors Fan Motor M1F 1φ55W 4P Thermal Protector 266 41 F OFF...

Page 530: ... ST8602A 4 φ6 L800 20kΩ 77 F Others Float Switch S1L FS 0211 Fuse F1U 250V 5A φ5 2 Transformer T1R TR25H25R0 Parts Name Symbol Model Remark FXSQ 12MVJU FXSQ 18MVJU FXSQ 24MVJU FXSQ 30MVJU FXSQ 36MVJU FXSQ 48MVJU Remote Controller Wired Remote Controller BRC1D71 Option Wireless Remote Controller BRC4C82 Motors Fan Motor M1F 1φ50W 4P 1φ85W 4P 1φ125W 4P 1φ225W 4P Thermal Fuse 305 6 F Thermal protecto...

Page 531: ...W 1φ130W Thermal protector 266 F OFF 176 F ON Capacitor for Fan Motor C1R 3 0μF 450V 9 0μF 450V Swing Motor M1S MT8 L 3P058751 1 AC200 240V Thermistors Thermistor Return Air R1T ST8601A 1 φ4 L250 20kΩ 77 F Thermistor for Heat Exchanger High Temp R3T ST8605 6 φ8 L 1250 20kΩ 77 F ST8605 6 φ8 L 1250 20kΩ 77 F Thermistor Heat Exchanger R2T ST8602A 6 φ6 L 1250 20kΩ 77 F ST8602A 6 φ6 L 1250 20kΩ 77 F Ot...

Page 532: ... φ8 L2500 20kΩ 77 F Thermistor for Heat Exchanger R2T ST8602A 9 φ6 L2500 20kΩ 77 F Others Fuse F1U AC250V 5A Transformer T1R TR25H25R0 Parts Name Symbol Model Remark FXNQ 12MVJU FXNQ 18MVJU FXNQ 24MVJU Remote Controller Wired Remote Controller BRC1D71 Option Wireless Remote Controller Motors Fan Motor M1F 1φ25W 1φ35W Thermal protector 275 F OFF 248 F ON Capacitor for Fan Motor C1R 0 5μF 450V 1 5μF...

Page 533: ...No Function intelligent Touch Controller basic Hardware intelligent Touch Controller DCS601C71 Air Conditioning management system that can be controlled by a compact all in one unit Option Software Web DCS004A71 Monitors and controls the air conditioning system using the Internet and Web browser application on a PC Communication Line 2 Interface for use in BACnet DMS502A71 Interface unit to allow ...

Page 534: ...H Max 8 branch KHRP26M72H Max 8 branch KHRP26M73HU Max 8 branch Refnet joint Model KHRP26M22T KHRP26M33T KHRP26M22T KHRP26M33T KHRP26M72TU KHRP26M22T KHRP26M33T KHRP26M72TU KHRP26M73TU Outdoor unit multi connection piping kit Model BHFP22P100U Series VRV III Models Optional accessories REYQ72PYDN REYQ96PYDN REYQ120PYDN REYQ144PYDN REYQ168PYDN REYQ192PYDN REYQ216PYDN REYQ240PYDN Distributive piping...

Page 535: ...igure below Pattern 1 Pattern 2 Prohibited pattern Change to pattern 1 or pattern 2 to indoor unit to indoor unit to indoor unit to indoor unit Piping between outside units to indoor unit Piping between outside units Downward inclination Downward inclination Oil remains in piping Front connections Side bottom connections Front connections Side bottom connections Front connections Side bottom conne...

Page 536: ... indoor unit to indoor unit Oil remains in the unit A when system stops Change as shown in the figure below Rising height 8 in or more Unit B Unit B Unit A Unit A Unit A Unit B Unit B Unit A Unit A Unit A Unit B Unit B Unit A Unit A Unit B Unit B Connect straightly Oil remains in the unit B when system stops Change as shown in the figure below Connect straightly Put rising to indoor unit to indoor...

Page 537: ...Piping Installation Point SiUS34 801A_b 522 Appendix ...

Page 538: ... 41 0 5 51 09 131 0 55 6 41 42 8 6 48 61 132 8 56 6 18 44 6 7 46 26 134 6 57 5 95 46 4 8 44 05 136 4 58 5 74 48 2 9 41 95 138 2 59 5 14 50 0 10 39 96 140 0 60 4 96 51 8 11 38 08 141 8 61 4 79 53 6 12 36 30 143 6 62 4 62 55 4 13 34 62 145 4 63 4 46 57 2 14 33 02 147 2 64 4 30 59 0 15 31 50 149 0 65 4 16 60 8 16 30 06 150 8 66 4 01 62 6 17 28 70 152 6 67 3 88 64 4 18 27 41 154 4 68 3 75 66 2 19 26 1...

Page 539: ...8 71 33 92 249 8 121 7 26 71 6 22 228 05 161 6 72 32 78 251 6 122 7 06 73 4 23 218 24 163 4 73 31 69 253 4 123 6 87 75 2 24 208 90 165 2 74 30 63 255 2 124 6 69 77 0 25 200 00 167 0 75 29 61 257 0 125 6 51 78 8 26 191 53 168 8 76 28 64 258 8 126 6 33 80 6 27 183 46 170 6 77 27 69 260 6 127 6 16 82 4 28 175 77 172 4 78 26 79 262 4 128 6 00 84 2 29 168 44 174 2 79 25 91 264 2 129 5 84 86 0 30 161 45...

Page 540: ...PL PH Detected Pressure High Side PL Detected Pressure Low Side VH Output Voltage High Side VDC VL Output Voltage Low Side VDC PH 1 38V 0 69 PL 0 57V 0 28 PH High pressure VL Low pressure V Voltage V Output Voltage VH VL Detected Pressure V3053 psi 652 580 507 435 362 290 217 145 72 0 72 725 ...

Page 541: ...f a multiple tester Items to be prepared 1 Multiple tester Prepare the analog of multiple tester For the digital multiple tester check the diode function Test points 1 Turn OFF the power supply Then after a lapse of 10 minutes or more make measurement of resistance Preparation 1 To make measurement disconnect all connectors and terminals Inverter PC board Electronic circuit P3 U V W N3 J1 J2 J3 P1...

Page 542: ...ing It may take time to determine the resistance due to capacitor charge 4 U P3 0 3 to 0 7V 5 V P3 5 V P3 6 W P3 6 W P3 7 N3 U 7 N3 U 8 N3 V 8 N3 V 9 N3 W 9 N3 W 10 U N3 2 to 15kΩ 10 U N3 Not less than 1 2V including It may take time to determine the voltage due to capacitor charge 11 V N3 11 V N3 12 W N3 12 W N3 When using the analog type of multiple tester make measurement in resistance measurem...

Page 543: ...Pressure Sensor SiUS34 801A_b 528 Appendix ...

Page 544: ... b c d e o 540 ft Example 6 a b h 540 ft 8 a i j 540 ft Example 8 a i 540 ft Equivalent pipe length between outside unit 2 and indoor unit 620 ft Note 1 Assume eqivalent pipe length of REFNET joint to be 1 6 ft that of REFNET header to be 3 3 ft for calculation purposes Total piping length from outside unit 2 to all indoor unit 3280 ft Actual pipe length from first outside unit multi connection pi...

Page 545: ...y index 72 72 111 111 Number of outside unit 2 units Connecting piping kit name BHFP22P100U Refrigerant branch kit name KHRP26M22H or KHRP26M33H KHRP26M33H KHRP26M72H Example for indoor units connected downstream Example REFNET joint C Indoor units 5 6 7 8 Example REFNET joint B Indoor units 7 8 Example REFNET header Indoor units 1 2 3 4 5 6 Example REFNET header indoor units 1 2 3 4 5 6 7 8 The t...

Page 546: ...d piping size at φ1 4 0 249 0 121 0 040 0 175 0 081 0 015 HEAT PUMP SYSTEM MODEL NAME MODEL NAME THE AMOUNT OF REFRIGERANT RXYQ72 120PYDN RXYQ72 120PTJU RXYQ144PTJU RXYQ144 192PYDN RXYQ168 192PTJU RXYQ216 240PYDN RXYQ216 240PTJU 7 9 lb 2 2 lb 3 3 lb REFRIGERANT AMOUNT FOR EXCEEDING CONNECTION CAPACITY OF INDOOR UNIT INDOOR CONNECTION CAPACITY MORE THAN 100 120 OR LESS MORE THAN 120 130 OR LESS RXY...

Page 547: ...a b 540 ft 8 a m n p 540 ft Example 8 a o 540 ft Equivalent pipe length between outside unit 2 and indoor unit 620 ft Note 1 Assume eqivalent pipe length of REFNET joint to be 1 6 ft that of REFNET header to be 3 3 ft that of BSVQ36 60 to be 13 ft for calculation purposes Total piping length from outside unit 2 to all indoor unit 3280 ft Actual pipe length from first outside unit multi connection ...

Page 548: ...90U 3 pipes KHRP25M33H KHRP25M72H 2 pipes KHRP26M22H or KHRP26M33H KHRP26M33H KHRP26M72H Refrigerant branch kit name Example for indoor units connected downstream Example REFNET joint C Indoor units 5 6 7 8 Example REFNET joint B Indoor units 7 8 Example REFNET header Indoor units 1 2 3 4 5 6 Example REFNET header Indoor units 1 2 3 4 5 6 7 8 The thickness and material shall be selected in accorda...

Page 549: ...length ft of liquid piping size at φ1 4 0 249 0 121 0 040 0 175 0 081 0 015 1 02 HEAT RECOVER SYSTEM MODEL NAME THE AMOUNT OF REFRIGERANT REYQ72 120PYDN REYQ72 144PTJU REYQ144 192PYDN REYQ168 192PTJU REYQ216 240PYDN REYQ216 240PTJU REFRIGERANT AMOUNT FOR EXCEEDING CONNECTION CAPACITY OF INDOOR UNIT MORE THAN 100 120 OR LESS MORE THAN 120 130 OR LESS INDOOR CONNECTION CAPACITY MODEL NAME REYQ72 240...

Page 550: ...SiUS34 801A_b Precautions for New Refrigerant R 410A 535 Part 7 Precautions for New Refrigerant R 410A 1 Precautions for New Refrigerant R 410A 536 1 1 Service Tools 538 ...

Page 551: ...nt mixture of two or more refrigerants having similar boiling points 3 The design pressure is different at each product Please refer to the installation manual for each product Reference 1 MPa 10 19716 kgf cm2 1 MPa 145 psi HFC units Units using new refrigerants HCFC units Refrigerant name R 407C R 410A R 22 Composing substances Non azeotropic mixture of HFC32 HFC125 and HFC134a 1 Quasi azeotropic...

Page 552: ...or New Refrigerant R 410A 537 Thermodynamic characteristic of R 410A Temperature Steam pressure kPa Liquid Vapor Density kg m3 Liquid Vapor Specific heat at constant pressure kJ kgK Liquid Vapor Specific enthalpy kJ kg Liquid Vapor Specific entropy kJ KgK Liquid Vapor ...

Page 553: ...ools for R 22 and R 410A 2Thread specification differs for R 410A and R 407C Gas detector 2The same tool can be used for HFCs Vacuum pump pump with reverse flow preventive function 2To use existing pump for HFCs vacuum pump adaptor must be installed Weighting instrument Flaring tool Clutch type 2For R 410A flare gauge is necessary Torque wrench 2Torque up for 1 2 and 5 8 Pipe cutter Pipe expander ...

Page 554: ...to 0 5 32mm was provided for flaring For R 410A air conditioners perform pipe flaring with a pipe extension margin of 1 32 to 1 5 32mm l For clutch types only a conventional tool with pipe extension margin adjustment can be used Flare gauge Nominal size 1 4 3 8 1 2 5 8 3 4 Tube O D Do 6 35 9 52 12 70 15 88 19 05 Class 2 R 410A 9 1 32 13 2 32 16 6 32 19 7 32 3 4 Class 1 Conventional 9 0 32 13 0 32 ...

Page 555: ...um degree of vacuum 50 l min 50Hz Select a vacuum pump which is able to keep 60 l min 60Hz the vacuum degree of the system in excess of 2 Suction port UNF7 16 20 1 4 Flare 14 6 psi 5 torr or 5000 micron or 755 mmHg UNF1 2 20 5 16 Flare with adapter Differences 2 Designed to prevent reverse oil flow 2 Previous vacuum pump can be used by installing an adapter Nominal size Class 1 Class 2 Previous 1 ...

Page 556: ...ince HFCs do not contain chlorine the new tester detects hydrogen 5 Refrigerant oil Specifications 2 Contains synthetic oil therefore it can be used for piping work of every refrigerant cycle 2 Offers high rust resistance and stability over long period of time Differences 2 Can be used for R 410A and R 22 units 6 Gauge manifold for R 410A Specifications 2 High pressure gauge 15 to 770 psi 76 cmHg ...

Page 557: ...essure 3685 psi 259 kg cm2 2 Available with and without hand operate valve that prevents refrigerant from outflow Differences 2 Pressure proof hose 2 Change in service port diameter 2 Use of nylon coated material for HFC resistance 8 Weigher for refrigerant charge Specifications 2 High accuracy TA101A for 10 kg cylinder 2g TA101B for 20 kg cylinder 5g 2 Equipped with pressure resistant sight glass...

Page 558: ...ant R 410A Precautions for New Refrigerant R 410A 543 Regarding purchasing of service tools please contact following address Daikin U S Corporation Dallas Office 1645 Wallace Dr Ste 110 Carrollton TX 75006 Tel 1 972 245 1510 Fax 1 972 245 1038 ...

Page 559: ...Precautions for New Refrigerant R 410A SiUS34 801A_b 544 Precautions for New Refrigerant R 410A ...

Page 560: ...pply Cable 461 Check the Factors of Overheat Operation 462 Concept of Inverter related Malfunction Codes 474 Connectable Indoor Unit 6 Connectable Indoor Units Number and Capacity 6 Cooling Only Heat pump Setting 244 Current Sensor Malfunction 380 D Defective Inverter PC Board 393 Detailed Explanation of Setting Modes 306 Detection of earth leakage by leak detection PC board ass y 359 Display Unde...

Page 561: ... Pressure Sensor 391 Malfunction of Moving Part of Electronic Expansion Valve Y1E Y5E 372 Malfunction of Outdoor Unit Fan Motor 369 Malfunction of Subcooling Heat Exchanger Gas Pipe Thermistor R5T or R13T 388 Malfunction of Swing Flap Motor M1S 346 Malfunction of System Refrigerant System Address Undefined 446 Malfunction of Temperature Sensor for Heat Exchanger Gas R2T or R11T 383 Malfunction of ...

Page 562: ...peration Mode 141 REYQ144PTJU 149 REYQ144PYDN 157 REYQ168P 192P 165 REYQ216P 240P 173 REYQ72P 96P 120P 141 RXYQ144 168 192 216 240PYDN RXYQ168 192 216 240PTJU 34 RXYQ144PTJU 28 RXYQ72 96 120PYDN PTJU 23 Refrigerant Overcharged 376 Reverse Phase Open Phase 416 S Set Mode Display LED 94 241 Setting Mode 1 101 249 Setting Mode 2 102 250 Setting at Replacement by Spare PC Board 97 244 Setting by Push ...

Page 563: ...SiUS34 801A_b iv Index ...

Page 564: ...ntrol Modes How to Select Operation Mode 315 Current Sensor Malfunction 380 D Defective Inverter PC Board 393 Detailed Setting Procedure of Low Noise Operation and Demand Control 112 261 Discharge Pipe Protection Control 215 Display Under Centralized Control Blinks Repeats Double Blink 460 Display Under Centralized Control Blinks Repeats Single Blink 457 Drain Level above Limit 352 Drain Pump Cont...

Page 565: ...83 Malfunction of Thermistor R1T for Outdoor Air 379 Malfunction of Thermistor R1T for Suction Air 356 Malfunction of Thermistor R2T for Heat Exchanger 354 Malfunction of Thermistor R3T for Gas Pipes 355 Malfunction of Thermistor R4T or R12T for Outdoor Unit Heat Exchanger 385 Malfunction of Thermistor R8T or R10T for Suction Pipe 384 Malfunction of Thermostat Sensor in Remote Controller 357 Malfu...

Page 566: ...tting of Low Noise Operation and Demand Operation 108 257 Image of Operation in the Case of A 109 111 258 260 Image of Operation in the Case of A and B 109 111 258 260 Image of Operation in the Case of B 109 111 258 260 Simplified Remote Controller 303 BRC2A51 BRC2C51 303 STD Compressor Motor Overcurrent Lock 367 STD Compressor Overload Protection 71 218 System is not Set yet 445 T Test Operation ...

Page 567: ...YQ72 96 120PTJU RXYQ144 240PYDN RXYQ168 240PTJU REYQ72 96 120PYDN REYQ72 96 120 144PTJU RXYQ144PTJU REYQ144 240PYDN REYQ168 240PTJU SiUS34 801A_b Printed in U S A 11 2009 AK Specifications designs and other content appearing in this brochure are current as of November 2009 but subject to change without notice 1645 Wallace Drive Suite 110 Carrollton TX75006 info daikinac com www daikinac com AMERIC...

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