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Protection Control

Si39-306

82

Function

4.3

Discharge Pipe Protection Control

This discharge pipe protection control is used to protect the compressor internal temperature
against a malfunction or transient increase of discharge pipe temperature.

Each compressor performs the discharge pipe temperature protection control individually
in the following sequence.

[INV compressor]

[STD compressor]

In discharge pipe temp.

protection control

HTdi>110˚C
Tp>115˚C

HTdi :Value of INV compressor discharge pipe

temperature (Tdi) compensated with
outdoor air temperature

Tp :

Value of compressor port temperature
calculated by Tc and Te, and suction
superheated degree.

or

Discharge pipe temp.

protection control not limited

Discharge pipe

temp.control standby

INV upper limit frequency:

1-step down from current

compressor frequency

INV upper limit frequency: 1-step up
from current compressor frequency

INV62 Hz + OFF + OFF

HTdi>110˚C
Tp>115˚C

or

Every 30 sec.

HTdi>135˚C
HTdi>115˚C for 10 min. or more.

or

HTdi<105˚C
Tp<115˚C

&

Every 60 sec.

HTdi>130˚C
HTdi>115˚C

for 90 sec.

or more.

Tp>130˚C

or

HTdi<95˚C
Tp<100˚C

&

When occurring 3 times within 100 minutes,
the malfunction code “F3” is output.

• HTds>115˚C continues for 5 min. or more.
• HTds>135˚C
• Tp>115˚C continues for 10 min. or more.
• Tp>130˚C

or

Applicable STD

compressor stops.

10 min.

Discharge pipe temp.

protection control not limited

HTds : Value of STD compressor discharge

pipe temperature (

Tds) compensated

with outdoor air temperature

Tp:

Value of compressor port temperature
calculated by Tc and Te , and suction
superheated degree.

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Содержание VRV II REYQ10MY1B

Страница 1: ...an Tokyo office Shinjuku Sumitomo Bldg 6 1 Nishi Shinjuku 2 chome Shinjuku ku Tokyo 163 0235 Japan Zandvoordestraat 300 B 8400 Oostende Belgium l For further improvement specifications or designs are subject to change without prior notice Printed in Singapore 12 2003 COS Service Manual R410A Heat Recovery 50Hz Si39 306 ...

Страница 2: ... 1 1 Outdoor Units 10 1 2 Indoor Units 21 1 3 BS Units 40 Part 3 Refrigerant Circuit 41 1 Refrigerant Circuit 42 1 1 REYQ8 10 12M 42 1 2 REYQ14 16M 44 1 3 BSVQ100 160 250M 46 2 Functional Parts Layout 47 2 1 REYQ8 10 12M 47 2 2 REYQ14 16M 49 3 Refrigerant Flow for Each Operation Mode 51 Part 4 Function 57 1 Operation Mode 58 2 Basic Control 59 2 1 Normal Operation 59 2 2 Compressor PI Control 60 2...

Страница 3: ...troller 92 6 4 Freeze Prevention 94 Part 5 Test Operation 95 1 Test Operation 96 1 1 Procedure and Outline 96 1 2 Operation When Power is Turned On 99 2 Outdoor Unit PC Board Layout 100 3 Field Setting 101 3 1 Field Setting from Remote Controller 101 3 2 Field Setting from Outdoor Unit 113 Part 6 Troubleshooting 133 1 Troubleshooting by Remote Controller 135 1 1 The INSPECTION TEST Button 135 1 2 ...

Страница 4: ...ge Pipe Thermistor R31 33T 177 2 26 J4 Malfunction of Heat Exchanger Gas Pipe Thermistor R81 82T 178 2 27 J5 Outdoor Unit Malfunction of Thermistor R2T for Suction Pipe 179 2 28 J6 Outdoor Unit Malfunction of Thermistor R4T for Outdoor Unit Heat Exchanger 180 2 29 J7 Malfunction of Receiver Outlet Liquid Pipe Thermistor R6T 181 2 30 J8 Malfunction of Oil Equalizing Pipe Thermistor R7T 182 2 31 J9 ...

Страница 5: ...Transmission between Optional Controllers for Centralized Control 216 3 4 MA Improper Combination of Optional Controllers for Centralized Control 217 3 5 MC Address Duplication Improper Setting 219 4 Troubleshooting OP Schedule Timer 220 4 1 UE Malfunction of Transmission between Centralized Remote Controller and Indoor Unit 220 4 2 M1 PC Board Defect 222 4 3 M8 Malfunction of Transmission between...

Страница 6: ...g Installation Point 268 5 2 The Example of a Wrong Pattern 269 6 REFNET Pipe System 270 6 1 Layout Example 270 6 2 Max Refrigerant Piping Length 271 6 3 Example of Connection R410A Type REYQ8 48M Heat Recovery 273 7 Thermistor Resistance Temperature Characteristics 275 8 Pressure Sensor 277 9 Method of Replacing The Inverter s Power Transistors and Diode Modules 278 Part 9 Precautions for New Ref...

Страница 7: ...plug socket before disassembling the equipment for a repair Working on the equipment that is connected to a power supply can cause an electrical shook If it is necessary to supply power to the equipment to conduct the repair or inspecting the circuits do not touch any electrically charged sections of the equipment If the refrigerant gas discharges during the repair work do not touch the dischargin...

Страница 8: ...he applicable model and appropriate tools to conduct repair work Never attempt to modify the equipment The use of inappropriate parts or tools can cause an electrical shock excessive heat generation or fire When relocating the equipment make sure that the new installation site has sufficient strength to withstand the weight of the equipment If the installation site does not have sufficient strengt...

Страница 9: ...ice valve to prevent the refrigerant gas from leaking into the room The refrigerant gas itself is harmless but it can generate toxic gases when it contacts flames such as fan and other heaters stoves and ranges When replacing the coin battery in the remote controller be sure to disposed of the old battery to prevent children from swallowing it If a child swallows the coin battery see a doctor imme...

Страница 10: ...l shock Be sure to measure the insulation resistance after the repair and make sure that the resistance is 1 Mohm 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 Icon Type of Information Description Note Note A note provides information t...

Страница 11: ...I series Heat Recovery 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 VRVII series Heat Recovery System Dec 2003 After Sales Service Division ...

Страница 12: ...06 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 ...

Страница 13: ...ling mounted built in type FXSQ 20M 25M 32M 40M 50M 63M 80M 100M 125M Ceiling mounted duct type FXMQ 40M 50M 63M 80M 100M 125M 200M 250M Ceiling suspended type FXHQ 32M 63M 100M Wall mounted type FXAQ 20M 25M 32M 40M 50M 63M Floor standing type FXLQ 20M 25M 32M 40M 50M 63M Concealed Floor standing type FXNQ 20M 25M 32M 40M 50M 63M Type Model Name Power Supply Heat Recovery Series BSVQ 100M 160M 25...

Страница 14: ...0M FXAQ63M Ceiling mounted cassette type Multi flow FXFQ25M FXFQ32M FXFQ40M FXFQ50M FXFQ63M FXFQ80M FXFQ100M FXFQ125M Floor standing type FXLQ20M FXLQ25M FXLQ32M FXLQ40M FXLQ50M FXLQ63M Ceiling mounted cassette corner type FXKQ25M FXKQ32M FXKQ40M FXKQ63M Concealed floor standing type FXNQ20M FXNQ25M FXNQ32M FXNQ40M FXNQ50M FXNQ63M Ceiling mounted built in type FXSQ20M FXSQ25M FXSQ32M FXSQ40M FXSQ5...

Страница 15: ...tion 2 2 Outdoor Units H R REYQ8M 10M H R REYQ12M 14M 16M 8 10HP 12 14 16HP H R REYQ18M 20M H R REYQ22M 24M 26M 18 20HP 22 24 26HP H R REYQ28M 30M 32M H R REYQ34M 36M 28 30 32HP 34 36HP H R REYQ38M 40M 42M H R REYQ44M 46M 48M 38 40 42HP 44 46 48HP ...

Страница 16: ...Outdoor Units Up to a maximum 48HP are realized by combining 8 10 12 14 and 16HP System Capacity Number of units Module 8 10 12 14 16 8HP 1 10HP 1 12HP 1 14HP 1 16HP 1 18HP 2 20HP 2 22HP 2 24HP 2 26HP 2 28HP 2 30HP 2 32HP 2 34HP 3 36HP 3 38HP 3 40HP 3 42HP 3 44HP 3 46HP 3 48HP 3 ...

Страница 17: ...r unit 3 Total number of connectable indoor units 20 22 32 32 32 32 Total capacity of connectable indoor units kW 28 0 72 8 30 8 80 0 34 0 88 4 36 5 94 9 39 3 102 1 42 5 110 5 HP 32HP 34HP 36HP 38HP 40HP 42HP System name REYQ32M REYQ34M REYQ36M REYQ38M REYQ40M REYQ42M Outdoor unit 1 REYQ16M REYQ10M REYQ10M REYQ10M REYQ10M REYQ10M Outdoor unit 2 REYQ16M REYQ10M REYQ10M REYQ12M REYQ14M REYQ16M Outdo...

Страница 18: ...3M 80M 100M 125M Ceiling mounted cassette corner FXKQ 25M 32M 40M 63M Ceiling mounted built in type FXSQ 20M 25M 32M 40M 50M 63M 80M 100M 125M Ceiling mounted duct type FXMQ 40M 50M 63M 80M 100M 125M 200M 250M Ceiling suspended type FXHQ 32M 63M 100M Wall mounted type FXAQ 20M 25M 32M 40M 50M 63M Floor standing type FXLQ 20M 25M 32M 40M 50M 63M Concealed Floor standing type FXNQ 20M 25M 32M 40M 50...

Страница 19: ...Model Selection Si39 306 8 General Information ...

Страница 20: ...Si39 306 Specifications 9 Part 2 Specifications 1 Specifications 10 1 1 Outdoor Units 10 1 2 Indoor Units 21 1 3 BS Units 40 ...

Страница 21: ...tarting Method Soft start Soft start Fan Type Propeller Fan Propeller Fan Motor Output kW 0 75 1 0 75 1 Air Flow Rate m min 175 180 Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe mm φ9 5 Flare Connection φ9 5 Flare Connection Suction Gas Pipe mm φ19 1 Brazing Connection φ22 2 Brazing Connection Discharge Gas Pipe mm φ15 9 Flare Connection φ19 1 Brazing Connection Oil Equalizing Pipe ...

Страница 22: ...d Soft start Soft start Fan Type Propeller Fan Propeller Fan Motor Output kW 0 75 1 0 75 1 Air Flow Rate m min 210 210 Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe mm φ12 7 Flare Connection φ12 7 Flare Connection Suction Gas Pipe mm φ28 6 Brazing Connection φ28 6 Brazing Connection Discharge Gas Pipe mm φ19 1mm Brazing Connection φ22 2 Brazing Connection Oil Equalizing Pipe mm Mach...

Страница 23: ...t start Soft start Fan Type Propeller Fan Propeller Fan Motor Output kW 0 75 1 0 75 2 Air Flow Rate m min 210 175 180 Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe mm φ12 7 Flare Connection φ15 9 Brazing Connection Suction Gas Pipe mm φ28 6 Brazing Connection φ28 6 Brazing Connection Discharge Gas Pipe mm φ22 2 Brazing Connection φ22 2 Brazing Connection Oil Equalizing Pipe mm φ6 4 ...

Страница 24: ...arting Method Soft start Soft start Fan Type Propeller Fan Propeller Fan Motor Output kW 0 75 2 0 75 2 Air Flow Rate m min 180 180 180 210 Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe mm φ15 9 Brazing Connection φ15 9 Brazing Connection Suction Gas Pipe mm φ28 6 Brazing Connection φ28 6 Brazing Connection Discharge Gas Pipe mm φ28 6 Brazing Connection φ28 6 Brazing Connection Oil E...

Страница 25: ...5 2 7 4 5 3 0 4 5 4 5 Starting Method Soft start Soft start Fan Type Propeller Fan Propeller Fan Motor Output kW 0 75 2 0 75 2 Air Flow Rate m min 180 210 180 210 Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe mm φ15 9 Brazing Connection φ19 1 Brazing Connection Suction Gas Pipe mm φ34 9 Brazing Connection φ34 9 Brazing Connection Discharge Gas Pipe mm φ28 6 Brazing Connection φ28 6 ...

Страница 26: ... 5 3 0 4 5 4 5 Starting Method Soft start Soft start Fan Type Propeller Fan Propeller Fan Motor Output kW 0 75 2 0 75 2 Air Flow Rate m min 210 210 210 2 Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe mm φ19 1 Brazing Connection φ19 1 Brazing Connection Suction Gas Pipe mm φ34 9 Brazing Connection φ34 9 Brazing Connection Discharge Gas Pipe mm φ28 6 Brazing Connection φ28 6 Brazing C...

Страница 27: ...7 4 5 2 7 4 5 2 0 4 5 4 5 Starting Method Soft start Soft start Fan Type Propeller Fan Propeller Fan Motor Output kW 0 75 2 0 75 3 Air Flow Rate m min 210 2 180 180 210 Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe mm φ19 1 Brazing Connection φ19 1 Brazing Connection Suction Gas Pipe mm φ34 9 Brazing Connection φ34 9 Brazing Connection Discharge Gas Pipe mm φ28 6 Brazing Connection ...

Страница 28: ...5 2 7 4 5 4 2 4 5 3 0 4 5 4 5 Starting Method Soft start Soft start Fan Type Propeller Fan Propeller Fan Motor Output kW 0 75 3 0 75 3 Air Flow Rate m min 180 180 210 180 210 210 Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe mm φ19 1 Brazing Connection φ19 1 Brazing Connection Suction Gas Pipe mm φ41 3 Brazing Connection φ41 3 Brazing Connection Discharge Gas Pipe mm φ28 6 Brazing C...

Страница 29: ... 4 5 2 7 4 5 3 0 4 5 4 5 2 Starting Method Soft start Soft start Fan Type Propeller Fan Propeller Fan Motor Output kW 0 75 3 0 75 3 Air Flow Rate m min 180 210 210 180 210 210 Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe mm φ19 1 Brazing Connection φ19 1 Brazing Connection Suction Gas Pipe mm φ41 3 Brazing Connection φ41 3 Brazing Connection Discharge Gas Pipe mm φ34 9 Brazing Conn...

Страница 30: ... 5 3 0 4 5 4 5 2 Starting Method Soft start Soft start Fan Type Propeller Fan Propeller Fan Motor Output kW 0 75 3 0 75 3 Air Flow Rate m min 210 210 210 210 210 210 Drive Direct Drive Direct Drive Connecting Pipes Liquid Pipe mm φ19 1 Brazing Connection φ19 1 Brazing Connection Suction Gas Pipe mm φ41 3 Brazing Connection φ41 3 Brazing Connection Discharge Gas Pipe mm φ34 9 Brazing Connection φ34...

Страница 31: ...nt m h 13 72 10 47 10 47 3 Number of Revolutions r p m 6480 2900 2 3 Motor Output Number of Units kW 3 0 4 5 4 5 3 Starting Method Soft start Fan Type Propeller Fan Motor Output kW 0 75 3 Air Flow Rate m min 210 210 210 Drive Direct Drive Connecting Pipes Liquid Pipe mm φ19 1 Brazing Connection Suction Gas Pipe mm φ41 3 Brazing Connection Discharge Gas Pipe mm φ34 9 Brazing Connection Oil Equalizi...

Страница 32: ...ol Urethane Foam Piping Connections Liquid Pipes mm φ6 4 Flare Connection φ6 4 Flare Connection φ6 4 Flare Connection φ6 4 Flare Connection Gas Pipes mm φ12 7 Flare Connection φ12 7 Flare Connection φ12 7 Flare Connection φ12 7 Flare Connection Drain Pipe mm VP25 External Dia 32 Internal Dia 25 VP25 External Dia 32 Internal Dia 25 VP25 External Dia 32 Internal Dia 25 VP25 External Dia 32 Internal ...

Страница 33: ...ss Wool Urethane Foam Piping Connections Liquid Pipes mm φ6 4 Flare Connection φ9 5 Flare Connection φ9 5 Flare Connection φ9 5 Flare Connection Gas Pipes mm φ12 7 Flare Connection φ15 9 Flare Connection φ15 9 Flare Connection φ15 9 Flare Connection Drain Pipe mm VP25 External Dia 32 Internal Dia 25 VP25 External Dia 32 Internal Dia 25 VP25 External Dia 32 Internal Dia 25 VP25 External Dia 32 Inte...

Страница 34: ...or Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Foamed Polystyrene Foamed Polyethylene Foamed Polystyrene Foamed Polyethylene Foamed Polystyrene Foamed Polyethylene Piping Connections Liquid Pipes mm φ6 4 Flare Connection φ6 4 Flare Connection φ6 4 Flare Connection Gas Pipes mm φ12 7 Flare Connection φ12 7 Flare Connection φ12 7 Flare Connection Drain Pipe mm VP20...

Страница 35: ...4 353 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 Piping Connections Liquid Pipes mm φ6 4 Flare Connection φ6 4 Flare Connection Gas Pipes mm φ12 7 Flare Connection φ12 7...

Страница 36: ...Polyurethane Form Polyurethane Form Polyurethane Form Polyurethane Form Piping Connections Liquid Pipes mm φ6 4 Flare Connection φ6 4 Flare Connection φ6 4 Flare Connection φ6 4 Flare Connection Gas Pipes mm φ12 7 Flare Connection φ12 7 Flare Connection φ12 7 Flare Connection φ12 7 Flare Connection Drain Pipe mm VP25 External Dia 32 Internal Dia 25 VP25 External Dia 32 Internal Dia 25 VP25 Externa...

Страница 37: ...ation Material Polyurethane Form Polyurethane Form Polyurethane Form Polyurethane Form Piping Connections Liquid Pipes mm φ9 5 Flare Connection φ9 5 Flare Connection φ9 5 Flare Connection φ9 5 Flare Connection Gas Pipes mm φ15 9 Flare Connection φ15 9 Flare Connection φ15 9 Flare Connection φ15 9 Flare Connection Drain Pipe mm VP25 External Dia 32 Internal Dia 25 VP25 External Dia 32 Internal Dia ...

Страница 38: ...ion φ6 4 Flare Connection φ6 4 Flare Connection φ9 5 Flare Connection Gas Pipes mm φ12 7 Flare Connection φ12 7 Flare Connection φ12 7 Flare Connection φ15 9 Flare Connection Drain Pipe mm VP25 External Dia 32 Internal Dia 25 VP25 External Dia 32 Internal Dia 25 VP25 External Dia 32 Internal Dia 25 VP25 External Dia 32 Internal Dia 25 Machine Weight kg 31 31 31 34 5 Sound Level H L 220V dBA 38 33 ...

Страница 39: ...xternal pressure Pa 88 39 20 88 39 20 64 39 15 Drive Direct Drive Direct 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 Glass Fiber Glass Fiber Air Filter Resin Net with Mold Resistant Resin Net with Mo...

Страница 40: ...c external pressure Pa 88 49 20 88 59 29 88 49 20 Drive Direct Drive Direct 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 Glass Fiber Glass Fiber Air Filter Resin Net with Mold Resistant Resin Net with...

Страница 41: ...28 5 Static external pressure Pa 113 82 107 75 78 39 Drive Direct Drive Direct 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 Glass Fiber Glass Fiber Air Filter Resin Net with Mold Resistant Resin Net w...

Страница 42: ...ir Flow Rate H L m min 14 11 5 14 11 5 14 11 5 19 5 16 cfm 494 406 494 406 494 406 688 565 External Static Pressure Pa 157 157 118 108 4 157 157 118 108 4 157 157 118 108 4 157 160 108 98 4 Drive Direct Drive Direct Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Co...

Страница 43: ... Fan Sirocco Fan Motor Output Number of Units W 270 1 430 1 380 2 380 2 Air Flow Rate H L m min 29 23 36 29 58 50 72 62 cfm 1 024 812 1 271 1 024 2 047 1 765 2 542 2 189 External Static Pressure Pa 157 172 98 98 4 191 245 152 172 4 221 270 132 4 270 191 147 4 Drive Direct Drive Direct Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocess...

Страница 44: ...ive Direct Drive Direct 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 Resin Net with Mold Resistant Resin Net with Mold Resistant Piping Co...

Страница 45: ...cfm 265 159 282 177 318 194 Drive Direct Drive Direct 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 Foamed Polystyrene Foamed Polyethylene Foamed Polystyrene Foamed Polyethylene Foamed Polystyrene Foamed Polyethyl...

Страница 46: ...cfm 424 318 530 424 671 494 Drive Direct Drive Direct 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 Foamed Polystyrene Foamed Polyethylene Foamed Polystyrene Foamed Polyethylene Foamed Polystyrene Foamed Polyethyl...

Страница 47: ...247 212 247 212 282 212 Drive Direct Drive Direct 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 Resistan...

Страница 48: ...2 cfm 388 300 494 388 565 424 Drive Direct Drive Direct 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 Re...

Страница 49: ... 6 cfm 247 212 247 212 282 212 Drive Direct Drive Direct 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 R...

Страница 50: ...4 11 16 12 cfm 388 300 494 388 565 424 Drive Direct Drive Direct 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 wit...

Страница 51: ...quid Pipes φ 9 5mm Flare Connection 1 φ 9 5mm Flare Connection φ 9 5mm Flare Connection Gas Pipes φ 15 9mm Flare Connection 1 φ 15 9mm Flare Connection φ 22 2mm Flange Connection 2 Outdoor Unit Liquid Pipes φ 9 5mm Flare Connection 1 φ 9 5mm Flare Connection φ 9 5mm Flare Connection Suction Gas Pipes φ 15 9mm Flare Connection 1 φ 15 9mm Flare Connection φ 22 2mm Flange Connection 2 Discharge Gas P...

Страница 52: ... 41 Part 3 Refrigerant Circuit 1 Refrigerant Circuit 42 1 1 REYQ8 10 12M 42 1 2 REYQ14 16M 44 1 3 BSVQ100 160 250M 46 2 Functional Parts Layout 47 2 1 REYQ8 10 12M 47 2 2 REYQ14 16M 49 3 Refrigerant Flow for Each Operation Mode 51 ...

Страница 53: ...Low pressure sensor Used to detect low pressure S S1PH HP pressure switch For INV compressor In order to prevent the increase of high pressure when a malfunction occurs this switch is activated at high pressure of 3 8 MPa or more to stop the compressor operation T S2PH HP pressure switch For STD compressor 1 V Fusible plug In order to prevent the increase of pressure when abnormal heating is cause...

Страница 54: ...Si39 306 Refrigerant Circuit Refirgerant Circuit 43 REYQ8 10 12M V F E 10 O P D 1 K M J G W L Z N H Q T S A R I B Y X 4 9 3 2 7 11 ...

Страница 55: ...essure S S1PH HP pressure switch For INV compressor In order to prevent the increase of high pressure when a malfunction occurs this switch is activated at high pressure of 3 8 MPa or more to stop the compressor operation T S2PH HP pressure switch For STD compressor 1 U S3PH HP pressure switch For STD compressor 2 V Fusible plug In order to prevent the increase of pressure when abnormal heating is...

Страница 56: ...Si39 306 Refrigerant Circuit Refirgerant Circuit 45 REYQ14 16M V F E 10 O P D 1 6 K M J G W L Z N H Q T S A R I B C Y X 8 4 5 U 9 3 2 7 11 ...

Страница 57: ... Refirgerant Circuit 1 3 BSVQ100 160 250M No Symbol Name Major function A Y1S Solenoid valve 20RT Used to sub cool the liquid refrigerant B Y3S Solenoid valve 20RH Used to changeover the cooling and heating operation of indoor units ...

Страница 58: ...ompressor INV Oil equalizing pipe stop valve Suction gas side stop valve Discharge gas side stop valve Electronic expansion valve Sub Y2E Electronic expansion valve Main Y1E Electronic expansion valve Subcooling Y3E 4 way valve Main 20S1 Solenoid valve Oil equalizing of multi outdoor system Y2S Solenoid valve Hot gas Y1S Solenoid valve Discharge gas pipe closing Y5S Solenoid valve High pressure ga...

Страница 59: ...pe R7T Pressure sensor Low pressure S2NPL Thermistor Heat exchanger deicer R4T Thermistor Main heat exchanger gas pipe R81T Thermistor Suction pipe R2T Thermistor Sub cooling heat exchanger outlet R5T Pressure sensor High pressure S1NPH Pressure switch High pressure INV S1PH Pressure switch High pressure STD1 S2PH Thermistor Discharge pipe STD1 R32T Thermistor Discharge pipe INV R31T Thermistor Am...

Страница 60: ...p valve Electronic expansion valve Sub Y2E Electronic expansion valve Main Y1E Electronic expansion valve Subcooling Y3E 4 way valve Main 20S1 Compressor INV Liquid side stop valve Suction gas side stop valve Discharge gas side stop valve Compressor STD1 Compressor STD2 Solenoid valve Hot gas Y1S Solenoid valve Discharge gas pipe closing Y5S Solenoid valve High pressure gas pipe pressure reduction...

Страница 61: ... heat exchanger gas pipe R81T Thermistor Oil equalizer pipe R7T Thermistor Heat exchanger deicer R4T Thermistor Suction pipe R2T Pressure sensor Low pressure S2NPL Pressure sensor High pressure S1NPH Pressure switch High pressure INV S1PH Pressure switch High pressure STD1 S2PH Thermistor Discharge pipe STD1 R32T Thermistor Discharge pipe STD2 R33T Thermistor Discharge pipe INV R31T Pressure switc...

Страница 62: ...er High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure liquid or gas Indoor unit operation Oil equalizer pipe to other outdoor units Liquid piping to other outdoor units Discharge gas piping to other outdoor units Suction gas piping to other outdoor units Check valve Capillary tube Capillary tube Three way valve Capillary tube Check valve Solenoid ...

Страница 63: ...s High temperature high pressure liquid Low temperature low pressure liquid or gas Indoor unit operation Oil equalizer pipe to other outdoor units Liquid piping to other outdoor units Discharge gas piping to other outdoor units Suction gas piping to other outdoor units 4D042070A Bs unit Bs unit Bs unit Check valve Capillary tube Capillary tube Three way valve Capillary tube Check valve Solenoid va...

Страница 64: ...as High temperature high pressure liquid Low temperature low pressure liquid or gas Indoor unit operation Oil equalizer pipe to other outdoor units Liquid piping to other outdoor units Discharge gas piping to other outdoor units Suction gas piping to other outdoor units 4D042070A Bs unit Bs unit Bs unit Check valve Capillary tube Capillary tube Three way valve Capillary tube Check valve Solenoid v...

Страница 65: ...Filter High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure liquid or gas Indoor unit operation Oil equalizer pipe to other outdoor units Liquid piping to other outdoor units Discharge gas piping to other outdoor units Suction gas piping to other outdoor units 4D042070A Bs unit Bs unit Bs unit Check valve Capillary tube Capillary tube Three way valv...

Страница 66: ... valve Filter Filter High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure liquid or gas Indoor unit operation Oil equalizer pipe to other outdoor units Liquid piping to other outdoor units Discharge gas piping to other outdoor units Suction gas piping to other outdoor units 4D042070A Bs unit Bs unit Bs unit Check valve Capillary tube Capillary tube ...

Страница 67: ...rature high pressure liquid Low temperature low pressure liquid or gas Indoor unit operation Oil equalizer pipe to other outdoor units Liquid piping to other outdoor units Discharge gas piping to other outdoor units Suction gas piping to other outdoor units 4D042070A Bs unit Bs unit Bs unit Check valve Capillary tube Capillary tube Three way valve Capillary tube Check valve Solenoid valve Check va...

Страница 68: ...rol 74 3 5 Pump down Residual Operation 75 3 6 Restart Standby 76 3 7 Stopping Operation 77 3 8 Pressure Equalization Prior to Startup 79 4 Protection Control 80 4 1 High Pressure Protection Control 80 4 2 Low Pressure Protection Control 81 4 3 Discharge Pipe Protection Control 82 4 4 Inverter Protection Control 83 4 5 STD Compressor Overload Protection 84 5 Other Control 85 5 1 Outdoor Unit Rotat...

Страница 69: ...eration Compressor PI control Motorized valve PI control Protection control Indoor unit thermostat ON Defrost IN conditions are met No Yes Defrosting operation Cooling or heating operation Outdoor unit rotation Indoor unit thermostat ON Indoor unit stop or thermostat OFF Indoor unit stop or thermostat OFF Malfunction Standby Malfunction Standby In the event indoor unit stops or the thermostat turn...

Страница 70: ...on when outdoor temperature is low Receiver gas discharge valve SVG OFF Discharge pipe stop valve SVR OFF Non operating unit liquid pipe stop valve SVSL OFF High pressure gas pipe pressure reduction valve SVC ON Actuator Operation Remarks Compressor Compressor PI control Used for high pressure control low pressure protection control discharge pipe temperature protection control and compressor oper...

Страница 71: ...ion Controls compressor capacity to adjust Te to achieve target value TeS Te Low pressure equivalent saturation temperature C Te setting TeS Target Te value Varies depending on Te setting operating frequency etc L M Normal factory setting H 3 6 9 Controls compressor capacity to adjust Tc to achieve target value TcS Tc High pressure equivalent saturation temperature C Tc setting TcS Target Tc value...

Страница 72: ...EYQ40 42 44M REYQ24 26 28M REYQ30 32M REYQ8 10 12M REYQ14 16M INV STD1 No 1 No 2 INV STD1 STD2 No 1 No 2 No 3 INV STD1 No 1 No 3 INV STD1 No 2 No 4 INV STD1 No 1 No 3 INV STD1 STD2 No 2 No 4 No 5 Pattern 1 Pattern 2 Pattern 3 No 2 No 4 No 1 No 3 No 2 No 4 No 1 No 3 No 5 INV STD1 No 1 No 4 INV STD1 STD2 No 3 No 6 No 7 No 3 No 6 No 2 No 5 No 7 INV STD1 No 2 No 5 No 1 No 4 No 2 No 5 No 1 No 4 No 7 No...

Страница 73: ... 29 210Hz 189Hz OFF OFF 30 52Hz 189Hz ON OFF 31 88Hz 189Hz ON OFF 32 124Hz 189Hz ON OFF 33 158Hz 189Hz ON OFF 34 189Hz 189Hz ON OFF 35 210Hz 189Hz ON OFF 36 52Hz 189Hz ON ON 37 88Hz 189Hz ON ON 38 124Hz 189Hz ON ON 39 158Hz 189Hz ON ON 40 189Hz 189Hz ON ON 41 210Hz 189Hz ON ON 42 210Hz 210Hz ON ON REYQ24 26 28M STEP Master unit INV Slave unit INV STD unit No 1 STD unit No 2 STD unit No 3 1 52Hz OF...

Страница 74: ...FF OFF 6 81Hz OFF OFF OFF OFF OFF OFF 7 88Hz OFF OFF OFF OFF OFF OFF 8 96Hz OFF OFF OFF OFF OFF OFF 9 104Hz OFF OFF OFF OFF OFF OFF 10 110Hz OFF OFF OFF OFF OFF OFF 11 116Hz OFF OFF OFF OFF OFF OFF 12 124Hz OFF OFF OFF OFF OFF OFF 13 133Hz OFF OFF OFF OFF OFF OFF 14 143Hz OFF OFF OFF OFF OFF OFF 15 158Hz OFF OFF OFF OFF OFF OFF 16 165Hz OFF OFF OFF OFF OFF OFF 17 177Hz OFF OFF OFF OFF OFF OFF 18 1...

Страница 75: ...F 32 124Hz 189Hz 189Hz OFF OFF OFF OFF OFF 33 158Hz 189Hz 189Hz OFF OFF OFF OFF OFF 34 189Hz 189Hz 189Hz OFF OFF OFF OFF OFF 35 210Hz 189Hz 189Hz OFF OFF OFF OFF OFF 36 52Hz 189Hz 189Hz ON OFF OFF OFF OFF 37 88Hz 189Hz 189Hz ON OFF OFF OFF OFF 38 124Hz 189Hz 189Hz ON OFF OFF OFF OFF 39 158Hz 189Hz 189Hz ON OFF OFF OFF OFF 40 189Hz 189Hz 189Hz ON OFF OFF OFF OFF 41 210Hz 189Hz 189Hz ON OFF OFF OFF ...

Страница 76: ...Hz 189Hz 189Hz OFF OFF OFF OFF OFF OFF 35 210Hz 189Hz 189Hz OFF OFF OFF OFF OFF OFF 36 52Hz 189Hz 189Hz ON OFF OFF OFF OFF OFF 37 88Hz 189Hz 189Hz ON OFF OFF OFF OFF OFF 38 124Hz 189Hz 189Hz ON OFF OFF OFF OFF OFF 39 158Hz 189Hz 189Hz ON OFF OFF OFF OFF OFF 40 189Hz 189Hz 189Hz ON OFF OFF OFF OFF OFF 41 210Hz 189Hz 189Hz ON OFF OFF OFF OFF OFF 42 52Hz 189Hz 189Hz ON ON OFF OFF OFF OFF 43 104Hz 189...

Страница 77: ...but varies depending on the discharge pipe superheated degree of inverter compressor Sub cooling Motorized Valve EV3 Control Makes PI control of the motorized valve Y2E to keep the superheated degree of the outlet gas pipe on the evaporator side for the full use of the sub cooling heat exchanger SH Ts Te SH Evaporator outlet superheated degree C Ts Suction pipe temperature detected by thermistor R...

Страница 78: ...EP8 STEP7 STEP6 STEP5 STEP4 STEP3 STEP2 STEP1 STEP9 Pc 2 8MPa Pc HP pressure sensor detection value Pc 3 1MPa Pc 3 3MPa Pc 1 8MPa Pc 2 7MPa Pc 1 8MPa Pc 2 7MPa Pc 1 8MPa Pc 2 7MPa Pc 1 8MPa Pc 2 7MPa Pc 1 8MPa Pc 2 7MPa Pc 1 8MPa Pc 2 7MPa Pc 2 3MPa Pc 2 7MPa Fan Steps REYQ 8 and 10M REYQ 12 to 16M STEP1 0rpm 0rpm STEP2 300rpm 300rpm STEP3 320rpm 325rpm STEP4 345rpm 355rpm STEP5 385rpm 400rpm STEP...

Страница 79: ...e unit 2 Main heat exchanger Sub heat exchanger Not used Condenser Not used Not used Condenser Not used Master unit Slave unit 1 Slave unit 2 Main heat exchanger Sub heat exchanger Evaporator Condenser Not used Not used Not used Not used Step B3 GR 900 GR 250 GR 250 GR 250 GR 250 GR 250 GR 250 GR 250 GR 250 GR 250 Master unit Slave unit 1 Slave unit 2 Main heat exchanger Sub heat exchanger Evapora...

Страница 80: ...equency increases by 1 step until Pc Pe 0 4MPa Outdoor unit fan High pressure control Initial compressor operating frequency is set to STEP1 1 step increases with Pc 2 2 MPa 1 step decreases with Pc 1 8 MPa Four way valve 1 OFF Four way valve 2 OFF Main motorized valve EV1 1400 pls Sub motorized valve EV2 1400 pls Sub cooling motorized valve EV3 0 pls Hot gas bypass valve SVP ON Oil equalization v...

Страница 81: ...ON Oil equalization valve SVO ON In the case of multi outdoor unit system this valve repeats ON OFF operation at regular intervals of time Receiver gas charging valve SVL OFF Receiver gas discharge valve SVG OFF Discharge pipe stop valve SVR ON Non operating unit liquid pipe stop valve SVSL ON High pressure gas pipe pressure reduction valve SVC OFF Ending conditions 200 sec Pc Pe 0 4 MPa Actuator ...

Страница 82: ...ns listed in the table above from the oil return operation Actuators are based on REYQ16M Actuator Oil return preparation operation Oil return operation Post oil return operation Compressor Upper limit control 124 Hz ON OFF 52 Hz OFF OFF Outdoor unit fan Fan control Fan control Fan control Four way valve 1 OFF OFF OFF Four way valve 2 OFF OFF OFF Main motorized valve EV1 1400 pls 1400 pls 1400 pls...

Страница 83: ...ation Post oil return operation Compressor Upper limit control 124 Hz ON OFF 1 step increase from 74Hz OFF OFF to Pc Pe 0 4 MPa time Outdoor unit fan STEP8 or STEP9 OFF STEP9 Four way valve 1 Heat exchange mode OFF ON Four way valve 2 Heat exchange mode OFF OFF Main motorized valve EV1 Four way valve 1 OFF 1400 pls ON SH control 0 pls 180 pls Sub motorized valve EV2 Four way valve 2 OFF 1400 pls O...

Страница 84: ...max 2 hours Actuator Defrost preparation operation Defrost operation Post defrost operation Compressor Upper limit control 143 Hz ON ON 1 step increase from 74Hz OFF OFF to Pc Pe 0 4 MPa Outdoor unit fan STEP8 or STEP9 OFF STEP9 Four way valve 1 Heat exchange mode OFF ON Four way valve 2 Heat exchange mode OFF OFF Main motorized valve EV1 Four way valve 1 OFF 1400 pls ON SH control 1400 pls 180 pl...

Страница 85: ...tor Pressure equalizing preparation operation Equalization operation Compressor PI control 74 Hz OFF OFF Outdoor unit fan Heat exchange mode STEP8 Four way valve 1 Heat exchange mode ON Four way valve 2 Heat exchange mode OFF Main motorized valve EV1 Four way valve 1 OFF 1400 pls ON SH control 180 pls Sub motorized valve EV2 Four way valve 2 OFF 1400 pls ON SH control 1400 pls Sub cooling motorize...

Страница 86: ...alization valve SVO ON OFF Receiver gas charging valve SVL OFF OFF Receiver gas discharge valve SVG OFF OFF Discharge pipe stop valve SVR OFF OFF Non operating unit liquid pipe stop valve SVSL OFF ON High pressure gas pipe pressure reduction valve SVC OFF OFF Ending conditions 5 min Pe 0 5 MPa Td 110 C Indoor unit EV opening 0 pls or Actuator Master unit operation Slave unit operation Compressor 1...

Страница 87: ...OFF Four way valve 1 Holds ON Four way valve 2 Holds ON Main motorized valve EV1 0 pls Sub motorized valve EV2 0 pls Sub cooling motorized valve EV2 0 pls Hot gas bypass valve SVP OFF Oil equalization valve SVO ON In the case of slave units this valve turns OFF Receiver gas charging valve SVL OFF Receiver gas discharge valve SVG OFF Discharge pipe stop valve SVR Holds ON Non operating unit liquid ...

Страница 88: ... valve 1 Holds ON Four way valve 2 Holds ON Main motorized valve EV1 0 pls Sub motorized valve EV2 0 pls Sub cooling motorized valve EV3 0 pls Hot gas bypass valve SVP OFF Oil equalization valve SVO OFF Receiver gas charging valve SVL OFF Receiver gas discharge valve SVG OFF Discharge pipe stop valve SVR Holds ON Non operating unit liquid pipe stop valve SVSL ON High pressure gas pipe pressure red...

Страница 89: ...it liquid pipe stop valve SVSL OFF ON High pressure gas pipe pressure reduction valve SVC ON ON Mode transition conditions To Mode B when Tc Tl 0 27 Tc Ta 6 To Mode A when gas shortage signal is sent from indoor unit Ending conditions Slave units are required to operate Actuator Mode A operation Mode B operation Compressor OFF OFF Outdoor unit fan Incorporated INVFIN temperature control Incorporat...

Страница 90: ...EYQ16M Actuator Operation Compressor OFF Outdoor unit fan Cooling OFF Heating STEP 4 Four way valve 1 Holds ON Four way valve 2 Holds ON Main motorized valve EV1 0 pls Sub motorized valve EV2 0 pls Sub cooling motorized valve EV3 0 pls Hot gas bypass valve SVP OFF Oil equalization valve SVO OFF Receiver gas charging valve SVL OFF Receiver gas discharge valve SVG OFF Discharge pipe stop valve SVR H...

Страница 91: ...ure standby INV upper limit frequency 210 Hz High pressure limited Pc 3 48MPa Pc 3 58MPa Pc 3 2MPa Pc 3 53MPa STD compressor standby for 5 mins Pc HP pressure sensor detection value for each outdoor unit When occurring 3 times within 30 min HPS is activated without high pressure standby thus outputting the malfunction code E3 INV upper limit frequency 3 step 10 sec down from current compressor fre...

Страница 92: ...Low pressure not limited Pe 0 35MPa Low pressure standby Low pressure limited All STD compressors stop Master unit 52 Hz OFF OFF Slave unit Stop Pe 0 25MPa Pe 0 40MPa Pe 0 07MPa Pe LP pressure sensor detection value for master unit When occurring 3 times within 30 min the malfunction code E4 is output Pe 0 16MPa Pe 0 13MPa Pe 0 25MPa INV upper limit frequency 210 Hz Pe 0 07MPa Low pressure not lim...

Страница 93: ... protection control not limited Discharge pipe temp control standby INV upper limit frequency 1 step down from current compressor frequency INV upper limit frequency 1 step up from current compressor frequency INV62 Hz OFF OFF HTdi 110 C Tp 115 C or Every 30 sec HTdi 135 C HTdi 115 C for 10 min or more or HTdi 105 C Tp 115 C Every 60 sec HTdi 130 C HTdi 115 C for 90 sec or more Tp 130 C or HTdi 95...

Страница 94: ...frequency INV upper limit frequency 1 step up from current compressor frequency Invertercurrent Ia Inverter current Ia continues for 3 min or more Inverter current Ib continues for 260 sec Inverter current Ic continues for 5 sec or 200 V unit 400 V unit Ia Ib Ic 25A 13 5 A 26 1 A 31A 16 5 A When occurring 3 times within 60 min the malfunction code L8 is output When occurring 3 times within 30 min ...

Страница 95: ...ting due to overcurrent to the compressor resulting from failures of STD compressor such as locking STD compressor ON CT detection current value A for more than 3 sec STD compressor OFF for 30 min Demand to operate A 200 V unit 28 8A 400 V unit 15 0A When occurring 3 times within 90 minutes the malfunction code E6 is output ...

Страница 96: ... outdoor unit rotation in combination of 3 outdoor units Master unit slave unit 1 and slave unit 2 in this section are the names for installation They are determined in installation work and not changed thereafter These names are different from master unit and slave unit for control The outdoor unit connected the control wires F1 and F2 for the indoor unit should be designated as master unit Conse...

Страница 97: ... STD2 compressors from operating Set setting mode 2 from No 19 to No 2 REYQ8M to REYQ16M Procedure 1 Press and hold the MODE button BS1 for 5 sec or more 2 Press the SET button BS2 19 times 3 Press the RETURN button BS3 once 4 Press the SET button BS2 once 5 Press the RETURN button BS3 twice 6 Press the MODE button BS1 once To inhibit STD2 compressor from operating Set setting mode 2 from No 19 to...

Страница 98: ...nhibition of operation is set with each outdoor unit Make the following settings with the master unit Setting with the slave unit becomes disabled Discriminate the operating status of the master unit slave units through the following LED display To inhibit the master unit from operating Set setting mode 2 from No 38 to No 2 Procedure 1 Press and hold the MODE button BS1 for 5 sec or more 2 Press t...

Страница 99: ...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 external control adapter is required Demand 1 setting Demand 2 setting Other protection control functions have precedence over the above operation 5 4 Heating Operation Prohibition Heating operation is prohibited above 24 C ambient temperature LED di...

Страница 100: ...button 1 4 given in the figure below 6 1 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 6 1 2 When the Float Switch is Tripped During Cooling OFF by Thermostat ...

Страница 101: ...set even after the 5 minutes operation 5 seconds stop 5 minutes operation cycle ends operation continues until the switch is reset 6 1 4 When the Float Switch is Tripped and AF is Displayed on the Remote Controller Notes If the float switch is tripped five times in succession a drain malfunction is determined to have occurred AF is then displayed as operation continues ...

Страница 102: ...w 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 position ...

Страница 103: ...t temperature Ex When cooling Assuming the preset temperature in the figure above is 24 C and the suction temperature has changed from 18 C to 30 C 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 18 C to 23 C A C Remote controller the...

Страница 104: ...n be used so that suction temperature is higher than the preset temperature Ex When heating Assuming the preset temperature in the figure above is 24 C and the suction temperature has changed from 18 C to 28 C 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 Body thermostat sensor is use...

Страница 105: ...e unit enters freeze prevention operation in accordance with the following conditions and is also set in accordance with the conditions given below Conditions for starting freeze prevention Temperature is 1 C or less for total of 40 min or temperature is 5 C or less for total of 10 min Conditions for stopping freeze prevention Temperature is 7 C or more for 10 min continuously Ex Case where temper...

Страница 106: ... Operation 1 Test Operation 96 1 1 Procedure and Outline 96 1 2 Operation When Power is Turned On 99 2 Outdoor Unit PC Board Layout 100 3 Field Setting 101 3 1 Field Setting from Remote Controller 101 3 2 Field Setting from Outdoor Unit 113 ...

Страница 107: ...he design pressure of this product is 3 8MPa Are pipe insulation materials installed securely Liquid and gas pipes need to be insulated Otherwise causes water leak Are respective stop valves on liquid gas and oil equalizing lines securely open Is refrigerant charged up to the specified amount If insufficient charge the refrigerant from the service port of stop valve on the liquid side with outdoor...

Страница 108: ...p on outdoor unit PC board H2P flickers test operation 2Remote controller Indicates On Centralized Control on upper right Indicates Test Operation on lower left LED display 7 ON 7 7 OFF 9 9 Blink H1P H7P H8P Factory set Master Slave 1 Slave 2 77 7777777 7777 7 7777777 7777777 9 9 7777777 7 7777777 7 Cause of trouble due to faulty installation work Alarm code Countermeasure Closed stop valve of out...

Страница 109: ...at the indoor outdoor units can be operated normally When an abnormal noise due to liquid compression by the compressor can be heard stop the unit immediately and turn on the crankcase heater to heat up it sufficiently then start operation again Operate indoor unit one by one to check that the corresponding outdoor unit operates Confirm that the indoor unit discharges cold air or warm air Operate ...

Страница 110: ...inutes to automatically set the address indoor outdoor address etc Status Outdoor unit Test lamp H2P Blinks Can also be set during operation described above Indoor unit If ON button is pushed during operation described above the UH malfunction indicator blinks Returns to normal when automatic setting is complete Outdoor unit Test lamp H2P Blinks Can also be set during operation described above Ind...

Страница 111: ...door Outdoor Multi outdoor 2 Set mode display LED 3 Mode setting switch 1 Microcomputer normal monitor 4 Local setting switch Connection terminal for transmission use DS1 DS2 DS3 HAP V3054 1 Microcomputer normal monitor This monitor blinks while in normal operation and turns on or off when a malfunction occurs 2 Set mode display LED LEDs display mode according to the setting 3 Mode setting switch ...

Страница 112: ... mode push the button for 4 seconds or more and operation then enters the field set mode 2 Select the desired mode No with the button 3 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 4 Push the button an...

Страница 113: ... 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 position No to...

Страница 114: ... the FIELD SET MODE 3 Select the mode No 00 with BS2 BUTTON temperature setting and BS3 BUTTON temperature setting 4 Select the group No with BS9 BUTTON set A and BS10 BUTTON set B Group Nos increase in the order of 1 00 1 01 1 15 2 00 4 15 However the unified ON OFF controller displays only group No set within the range of control 5 Press BS7 BUTTON set cancel to set group No 6 Press BS6 BUTTON f...

Страница 115: ...n Set when filter sign is not to be displayed Display No display 12 22 0 Optional accessories output selection field selection of output for adaptor for wiring Indoor unit turned ON by thermostat Operationoutput Malfunction output 1 ON OFF input from outside Set when ON OFF is to be controlled from outside Forced OFF ON OFF control 2 Thermostat differential changeover Set when remote sensor is to ...

Страница 116: ... Floor standing type Concealed Floor standing type Multi flow Double flow Corner type FXFQ FXCQ FXKQ FXSQ FXMQ FXHQ FXAQ FXLQ FXNQ Filter sign Ultra long life filter sign Remote controller thermostat sensor Set fan speed when thermostat OFF Air flow adjustment Ceiling height Air flow direction Air flow direction adjustment Down flow operation Air flow direction adjustment range Field set fan speed...

Страница 117: ... air conditioners with the setting the units may start automatically after power failure reset or the main power supply turned on again return to the same operation condition as that of before power failure For the above reasons when the unit is set enabling to utilize Auto restart function after power failure reset utmost care should be paid for the occurrence of the following situation Filter Sp...

Страница 118: ...mounted type Standard 02 Wall mounted type Slight increase 03 Wall mounted type Normal increase 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 2 7 m Lower than 3 0 m Lower than 3 5 m 02 High Ceiling H Lower than 3 0 m Lower than 3 3 m Lower than 3 8 m 03 Higher Ceiling S Lower than 3 5 m Lower than 3 5 m Mode N...

Страница 119: ...ate switching at discharge grille for field air flow rate switching When the optional parts high performance filter etc is installed sets to change fan speed for securing air flow rate Follow the instruction manual for the optional parts to enter the setting numbers Mode No First Code No Second Code No Setting 13 23 4 01 Upward Draft prevention 02 Standard 03 Downward Ceiling soiling prevention ...

Страница 120: ...ays 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 using a remote controller connect the remote controller when setting the group No set the group No for centralized control and disconnect after making the setting Set the group No after turning on t...

Страница 121: ...bout 1 minute on the liquid crystal display This is not an operative fault Centralized 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...

Страница 122: ...tion mode setting by remote controller can be set and displayed by operation modes 0 through 19 ON OFF control impossible by remote controller Used when you want to turn on off by central remote controller only Cannot be turned on off by remote controller 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...

Страница 123: ...l by remote 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 1...

Страница 124: ...4 ON Not used Do not change the factory settings OFF Factory set DS2 1 4 ON Not used Do not change the factory settings OFF Factory set DS3 1 2 ON Not used Do not change the factory settings OFF Factory set Caution DIP switch Setting after changing the main P C Board A1P to spare parts P C B When you change the main P C Board A1P to spare parts P C B please carry out the following setting DIP Swit...

Страница 125: ... H1P Push the BS1 MODE button one time Blinking MODE MODE Off H1P Setting mode 2 MODE On H1P Push and hold the BS1 MODE button for 5 seconds Push the BS1 MODE button one time Normal V2761 Using the MODE button the modes can be changed as follows Check item selection Set Contents display Monitor mode Setting mode 1 Initial condition Press BS3 RETURN button Press BS3 RETURN button Setting item selec...

Страница 126: ... Malfunction 7 8 8 7 7 7 7 Preparing Test run 7 9 8 7 7 7 7 Normal 7 7 8 7 7 7 7 During low noise operation 7 7 8 7 7 8 7 Normal 7 7 8 7 7 7 7 During demand operation 7 7 8 7 7 7 8 8 ON 7 OFF 9 Blinking a Setting mode 1 Selection of setting items Push the SET button BS2 and set LED display to a setting item you want l Regarding setting item No 1 5 6 only the present status is displayed For the res...

Страница 127: ...n a simple way The operating time is based on Starting set and Ending set 25 Low noise setting Sets low noise level when the low noise signal is input from outside 26 Night time low noise control starting setting Sets starting time of nighttime low noise operation Nighttime low noise setting is also required 27 Night time low noise control ending setting Sets ending time of nighttime low noise ope...

Страница 128: ... applicable outdoor unit from operating should there be any faulty part in multi outdoor unit system Since the comfortable environment is extremely impaired prompt replacement of the part is required 39 Emergency operation Setting for the slave unit 1 operation prohibition in multi outdoor unit system 40 Emergency operation Setting for the slave unit 2 operation prohibition in multi outdoor unit s...

Страница 129: ...777778 ON 8777787 12 External low noise demand setting 8 7 7 8 8 7 7 External low noise demand NO 8777778 External low noise demand YES 8777787 13 Airnet address 8 7 7 8 8 7 8 Address 0 8777777 Binary number 1 8777778 6 digits 63 8788888 18 High static pressure setting 8 7 8 7 7 8 7 High static pressure setting OFF 8777778 High static pressure setting ON 8777787 19 Emergency operation STD compress...

Страница 130: ...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 Continuous demand setting 8 8 7 7 7 7 7 OFF 8777778 ON 8777787 38 Emergency operation Master unit with multi outdoor unit system is inhibited to operate 8 8 7 7 8 8 7 OFF 8777778 Master unit operation Inhibited 8777787 3...

Страница 131: ...Contents of malfunction the latest 8 7 7 8 8 8 7 Malfunction code table Refer page 150 151 15 Contents of malfunction 1 cycle before 8 7 7 8 8 8 8 16 Contents of malfunction 2 cycle before 8 7 8 7 7 7 7 20 Contents of retry the latest 8 7 8 7 8 7 7 21 Contents of retry 1 cycle before 8 7 8 7 8 7 8 22 Contents of retry 2 cycle before 8 7 8 7 8 8 7 Number of units for sequential start 1 unit 9 7 7 7...

Страница 132: ... 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 d the address for No 12 is 0101 the address for No 13 is 0110 and the combination of the two is 01010110 binary number which translat...

Страница 133: ...E 1 2 1 2 F2 B C A F2 F1 F1 F2 F1 Outdoor 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 D OUT D BS B C ...

Страница 134: ...e low noise instructions are neglected to switch to normal operation Set by Setting Mode 2 B When the low noise operation is carried out automatically at night The outdoor unit external control adapter is not required 1 Set Night time low noise setting on the outdoor unit PC board Set by Setting Mode 2 Lower noise operation can be carried out by Mode 2 than by Mode 1 and by Mode 3 than by Mode 2 2...

Страница 135: ...Field Setting Si39 306 124 Test Operation Image of operation in the case of A Image of operation in the case of B Image of operation in the case of A B ...

Страница 136: ...he External low noise Demand YES Set by Setting Mode 2 Set the Demand 1 level setting on the outdoor unit PCB as the need arises During the demand level 1 instruction the power consumption can be saved to 80 70 or 60 of the rated value respectively B When the continuous demand operation is carried out Use of the outdoor unit external control adapter is not required Set the Continuous demand settin...

Страница 137: ... 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 40 of rated power consumption Forced thermostat OFF Fan operation V3083 The power consumption set with Demand ...

Страница 138: ...H1P on c In setting 1 push and hold the BS1 MODE button for more than 5 seconds Setting mode 2 is entered and H1P lights d Push the BS2 SET button several times and match the LED display with the Setting No you want e 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 content as shown bel...

Страница 139: ...z z PM 8 00 z z z z z PM 10 00 Factory setting z z z z z PM 0 00 z z z z z 27 Night time low noise end setting z z AM 6 00 z z z z z AM 7 00 z z z z z AM 8 00 Factory setting z z z z z 29 Capacity precedence setting z z Low noise precedence Factory setting z z z z z Capacity precedence z z z z z 30 Demand setting 1 z z 60 of rated power consumption z z z z z 70 of rated power consumption Factory s...

Страница 140: ...il equalizing Stop valve closed Is all refrigerant charged Is all refrigerant charged YES YES NO Turn off the power Charge through Service port of LIQ Stop valve Open DISCHARGE LIQUID SUCTION Oil equalizing Stop valve Open LIQUID Stop valve Disconnect charge hose END of charge method STOP refrigerant charge model STEP 1 Additional charge without Compressor operation Open DISCHARGE SUCTION Stop val...

Страница 141: ...ot complete within 30 minutes set the A Additional refrigerant charging operation again to start charging When the charging immediately stops even by restarting the refrigerant is charged excessively The refrigerant cannot be charged any more g Do not fail to fully open the stop valve on the liquid side as soon as disconnecting the refrigerant charging hose The piping may be burst due to the liqui...

Страница 142: ... 3 2 7 Check Operation To prevent any trouble in the period of installation at site the system is provided with a test operation mode enabling check for incorrect wiring stop valve left in closed coming out or misplacing with suction pipe thermistor of discharge pipe thermistor and judgment of piping length refrigerant overcharging and learning for the minimum opening degree of motorized valve Uni...

Страница 143: ...ly during inverter operation The waveform can be checked by disconnecting the wiring of compressor After the completion of checks return the system to the previous mode and wait for 30 seconds or more until the discharge of capacitor is completed Then conduct a subsequent work Notes Be sure to disconnect the compressor wiring when conducting the check operation mentioned above When the output volt...

Страница 144: ...nit Malfunction of Thermistor R1T for Suction Air 161 2 12 CJ Indoor Unit Malfunction of Thermostat Sensor in Remote Controller 162 2 13 E1 Outdoor Unit PC Board Defect 163 2 14 E3 Outdoor Unit Actuation of High Pressure Switch 164 2 15 E4 Outdoor Unit Actuation of Low Pressure Sensor 165 2 16 E5 Compressor Motor Lock INV Compressor 166 2 17 E6 Compressor Motor Overcurrent Lock STD Compressor 167 ...

Страница 145: ...Indoor and Outdoor Units in the Same System 206 2 51 UA Excessive Number of Indoor Units 208 2 52 UC Address Duplication of Centralized Remote Controller 209 2 53 UE Malfunction of Transmission between Centralized Remote Controller and Indoor Unit 210 2 54 UF Refrigerant System not Set Incompatible Wiring Piping 212 2 55 UH Malfunction of System Refrigerant System Address Undefined 213 3 Troublesh...

Страница 146: ...ion 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 Outdoor m...

Страница 147: ... malfunction the remote controller s operation LED blinks and malfunction code is displayed Even if stop operation is carried out malfunction contents are displayed when the inspection mode is entered The malfunction code enables you to tell what kind of malfunction caused operation to stop See page 143 for malfunction code and malfunction contents ...

Страница 148: ... the following 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...

Страница 149: ...Troubleshooting by Remote Controller Si39 306 138 Troubleshooting The lower digit of the code changes as shown below when the UP and DOWN buttons are pressed ...

Страница 150: ...Si39 306 Troubleshooting by Remote Controller Troubleshooting 139 ...

Страница 151: ...Q FXFQ FXHQ FXSQ FXLQ FXMQ FXNQ FXZQ Type VRV System Inverter K Series R407C VRV PLUS Series VRV Heat Recovery Series High COP type R407C L Series VRV II VRV II Heat Recovery Display A A 1 A A 3 A 9 2 A A 5 A A A A 9 6 Outdoor model code Model RSXYP RXYP RSEYP RSXYP L RXYQ M REYQ M Unit Malfunction code Inspection Normal display No display 0 L 0 Malfunction code blinks when a malfunction occurs Un...

Страница 152: ...r 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 Define the setting contents Modes 44 45 Define by pushing the timer button After de...

Страница 153: ...u 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 the unit No with ...

Страница 154: ...If a malfunction occurs during operation the operation lamp malfunction code and display of malfunctioning unit No let you know the contents and location of the malfunction When there is a stop due to malfunction the contents of the malfunction given below can be diagnosed by a combination of operation lamp INSPECTION display of the liquid crystal display and display of malfunction code It also le...

Страница 155: ...E9 9 9 9 Malfunction of moving part of electronic expansion valve Y1E 3E 170 F3 9 9 9 Abnormal discharge pipe temperature 172 F6 9 9 9 Refrigerant overcharged 173 H3 8 7 9 Malfunction of High pressure switch H4 9 9 9 Actuation of Low pressure switch H7 9 9 9 Abnormal outdoor fan motor signal 174 H9 9 9 9 Malfunction of thermistor R1T for outdoor air loose connection disconnection short circuit fai...

Страница 156: ...of transmission between indoor unit and outdoor unit in the same system 206 UA 9 9 9 Excessive number of indoor units etc 208 UC 8 8 8 Address duplication of central remote controller 209 UE 9 9 9 Malfunction of transmission between central remote controller and indoor unit 210 214 220 UF 9 9 9 Refrigerant system not set incompatible wiring piping 212 UH 9 9 9 Malfunction of system refrigerant sys...

Страница 157: ...Abnormal connection with excessive number of indoor units Conflict of refrigerant type in indoor units Incorrect wiring Auto address error Malfunction of multi level converter abnormality in conflict check E3 E4 E5 E6 E7 E9 H7 H9 HC HJ HF F3 F6 J2 J3 J4 J5 J6 J7 J8 J9 JA JC L4 L5 L8 L9 LC P1 P3 P4 PJ U0 U1 U2 U3 U4 U7 U9 UA UH UJ UF Abnormal discharge pressure Abnormal suction pressure Compressor ...

Страница 158: ...play section Malfunction location Master Slave 1 Slave 2 Malfunction code Confirmation of malfunction 1 Confirmation of malfunction 2 Confirmation of malfunction 3 LED1 LED2 LED3 LED4 LED5 LED6 LED7 E3 E4 E5 E6 E7 E9 H7 H9 HC HJ HF F3 F6 J2 J3 J4 J5 J6 J7 J8 J9 JA JC L4 L5 L8 L9 LC P1 P3 P4 PJ U0 U1 U2 U3 U4 U7 U9 UA UH UJ Malfunction code 1st digit display section ...

Страница 159: ...al 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 code No to 01 or 02 External protection device is connected to terminals T1 and T2 of the indoor unit te...

Страница 160: ... be correctly received 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 Extern...

Страница 161: ...Q FXKQ FXHQ Option FXMQ 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...

Страница 162: ...oor 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 resetting t...

Страница 163: ... output voltage to the fan is maximum Supposed Causes Fan motor lock Disconnected or faulty wiring between fan motor and PC board Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Connect the wiring and turn on again Fix the wiring and turn on again YES NO NO NO YES YES Replace the indoor unit PC board Replace the fan mo...

Страница 164: ...Detection Utilizes ON OFF of the limit switch when the motor turns Malfunction Decision Conditions When ON OFF of the micro switch for positioning cannot be reversed even though the swing flap motor is energized for a specified amount of time about 30 seconds Supposed Causes Defect of swing motor Defect of connection cable power supply and limit switch Defect of air flow direction adjusting flap c...

Страница 165: ...ace 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 then sto...

Страница 166: ...lectronic expansion valve Defect of indoor unit PC board Defect of connecting cable Troubleshooting V2781 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred After connecting turn the power supply off and then back on Replace the moving part of the electronic expansion valve YES YES NO NO Replace the connecting cable If you turn the power...

Страница 167: ...tronic expansion valve Discount the electronic expansion valve from the PC board and check the continuity between the connector pins Normal Continuity No continuity Pin No 1 White 2 Yellow 3 Orange 4 Blue 5 Red 6 Brown 1 White Approx 300Ω Approx 150Ω 2 Yellow Approx 300Ω Approx 150Ω 3 Orange Approx 150Ω 4 Blue Approx 150Ω 5 Red 6 Brown ...

Страница 168: ...the float switch changes from ON to OFF while the compressor is in non operation 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 Modify the drain piping YES NO N...

Страница 169: ...en the capacity code is not contained in the PC board s memory and the capacity setting adaptor is not connected 2 When a capacity that doesn t exist for that unit is set Supposed Causes You have forgotten to install the capacity setting adaptor 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 b...

Страница 170: ...cted or shorted while the unit is running Supposed Causes Defect of thermistor R2T for liquid pipe Defect of indoor unit PC board Troubleshooting 2 Refer to thermistor resistance temperature characteristics table on P 275 V2784 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Replace the indoor unit PC board Connect the thermistor and ...

Страница 171: ...ed while the unit is running Supposed Causes Defect of indoor unit thermistor R3T for gas pipe Defect of indoor unit PC board Troubleshooting 2 Refer to thermistor resistance temperature characteristics table on P 275 V2785 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Replace the indoor unit PC board Connect the thermistor and turn...

Страница 172: ...nnected 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 2 Refer to thermistor resistance temperature characteristics table on P 275 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Replace the indoor unit PC board Connect the thermist...

Страница 173: ...omes disconnected or shorted while the unit is running Supposed Causes Defect of remote controller thermistor Defect of remote controller PC board Troubleshooting Notes In case of remote controller thermistor malfunction unit is still operable by suction air thermistor on indoor unit 2 Refer to thermistor resistance temperature characteristics table on P 275 Turn power supply OFF then power ON aga...

Страница 174: ...orrectly received 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 outdoor unit PC board A1P Troubleshooting Turn off the power once and turn on again Return to normal YES Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred External factor other ...

Страница 175: ...s power failure Faulty high pressure sensor Troubleshooting 1 Actuation of high pressure switch HPS The outdoor unit PC board s connector is disconnected Is the outdoor unit heat exchanger dirty Defect of outdoor fan Is the refrigerant over charged Faulty high pressure sensor Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Operation i...

Страница 176: ...pened Troubleshooting 1 Voltage measurement point 2 Refer to pressure sensor pressure voltage characteristics table on P 277 V2791 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Low pressure at stop due to malfunction is 0 15 MPa Measure the voltage VL of X45A pin No 2 3 of outdoor PC board A2P 1 Is the relationship between low volta...

Страница 177: ... detected Supposed Causes Compressor lock High differential pressure 0 5MPa or more Incorrect UVWN wiring Faulty inverter PC board Stop valve is left in closed Troubleshooting Check the installation conditions Is the stop valve open NO Is the UVWN wiring normal NO NO NO NO Is high differential pressure starting 0 5MPa or more YES YES YES Check and see whether compressor is short circuited or groun...

Страница 178: ...oned value for 2 seconds 400 V unit 15 0 A Supposed Causes Closed stop value Obstacles at the discharge port Improper power voltage Faulty magnetic switch Faulty compressor Troubleshooting Is the stop valve open NO Obstacle exists around the air discharge port YES Is the power supply voltage normal NO NO YES NO Is the magnetic switch K2M normal Caution Be sure to turn off power switch before conne...

Страница 179: ... system shuts down Supposed Causes Malfunction of fan motor The harness connector between fan motor and PC board is left in disconnected or faulty connector Fan does not run due to foreign matters tangled Clearing condition Operate for 5 minutes normal Troubleshooting Connector of fan motor is disconnected YES NO NO NO Harness connector between compressor inverter PCB and fan inverter PCB A2P A3P ...

Страница 180: ...ower supply cable YES Is the LED HAP on fan inverter PCB blinking NO Check No 9 Check on connector of fan motor Signal wire YES Are the resistance values between phases of U V W balanced Is there any short circuiting between phases of U V W NO Is the resistance value between Vcc and UVW and GND and UVW balanced NO Replace the fan inverter PCB Replace the fan motor of outdoor unit Replace the fan m...

Страница 181: ...rd A1P Defect of connecting cable Troubleshooting V3067 YES Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Return to normal Turn power supply off and turn power supply on again Electronic expansion valve is connected to X26A to X28A of outdoor unit PC board A1P Normal when coil check 1 of the moving part of the electronic expansion v...

Страница 182: ... part of the electronic expansion valve Disconnect the electronic expansion valve from the PC board and check the continuity between the connector pins Normal Continuity Approx 300Ω Continuity Approx 150Ω No continuity Pin No 1 White 2 Yellow 3 Orange 4 Blue 5 Red 6 Brown 1 White 2 Yellow 3 Orange 4 Blue 5 Red 6 Brown ...

Страница 183: ...ge pipe temperature rises suddenly Supposed Causes Faulty discharge pipe temperature sensor Faulty connection of discharge pipe temperature sensor Faulty outdoor unit PCB Troubleshooting 2 Refer to thermistor resistance temperature characteristics table on P 275 V3068 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Discharge pipe temp...

Страница 184: ... gas pipe temperature is lower than evaporating temperature during test operation Supposed Causes Refrigerant overcharge Disconnection of the receiver gas pipe thermistor Troubleshooting V2797 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the receiver gas pipe temperature thermistor installed the gas relief pipe on top of receive...

Страница 185: ...or connection cable Fan Inverter PC board malfunction Troubleshooting 1 Disconnect connector X2A and measure the following resistance V3069 Turn power off Check of fan motor connector H1 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the fan motor connector X2A connected to PC board for Fan inverter correctly The resistance of fan...

Страница 186: ...t of thermistor R1T for outdoor air Defect of outdoor unit PC board A1P Troubleshooting The alarm indicator is displayed when the fan only is being used also 2 Refer to thermistor resistance temperature characteristics table on P 275 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 disconn...

Страница 187: ...ecomes 5A or lower or 40A or more during standard compressor operation Supposed Causes Faulty current sensor Faulty outdoor unit PC board Troubleshooting V3071 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the current sensor mounted on the T phase wire Is the connector for current sensor connected to X30A X31A on outdoor unit PC ...

Страница 188: ...Defect of thermistor R31T R32T or R33T for outdoor unit discharge pipe Defect of outdoor unit PC board A1P Troubleshooting The alarm indicator is displayed when the fan is being used also Notes 8 12 HP class R31T R32T 14 16Hp class R31T R32T and R33T V3072 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Resistance is normal when measu...

Страница 189: ...upposed Causes Faulty heat exchanger gas pipe thermistor R81 82T Faulty outdoor unit PC board Troubleshooting 2 Refer to thermistor resistance temperature characteristics table on P 275 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 R81 or 82T from outdoor unit PC board n...

Страница 190: ...ature thermistor is detected Supposed Causes Defect of thermistor R2T for outdoor unit suction pipe Defect of outdoor unit PC board A1P Troubleshooting 2 Refer to thermistor resistance temperature characteristics table on P 275 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 disconnecting...

Страница 191: ...change thermistor is detected Supposed Causes Defect of thermistor R4T for outdoor unit coil Defect of outdoor unit PC board A1P Troubleshooting 2 Refer to thermistor resistance temperature characteristics table on P 275 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 th...

Страница 192: ...or open Supposed Causes Faulty receiver outlet liquid pipe thermistor R6T Faulty outdoor unit PC board Troubleshooting 2 Refer to thermistor resistance temperature characteristics table on P 275 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 from outdoor unit PC board...

Страница 193: ...pen Supposed Causes Faulty oil equalizing pipe thermistor R7T Faulty outdoor unit PC board Troubleshooting 2 Refer to thermistor resistance temperature characteristics table on P 275 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 from outdoor unit PC board normal 3 5 ...

Страница 194: ...en Supposed Causes Faulty receiver gas pipe thermistor R5T Faulty outdoor unit PC board Troubleshooting 2 Refer to thermistor resistance temperature characteristics table on P 275 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 from outdoor unit PC board normal 3 5 kΩ ...

Страница 195: ...nection of low pressure sensor with wrong connection Defect of outdoor unit PC board Troubleshooting 1 Voltage measurement point 2 Refer to pressure sensor pressure voltage characteristics table on P 277 V2806 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred The relationship between the 1 VH and high pressure is normal see 2 when volta...

Страница 196: ...high pressure sensor with wrong connection Defect of outdoor unit PC board Troubleshooting 1 Voltage measurement point 2 Refer to pressure sensor pressure voltage characteristics table on P 277 V2808 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred The relationship between the 1 VH and low pressure is normal see 2 when voltage is measu...

Страница 197: ...Actuation of fin thermal Actuates above 89 C Defect of inverter PC board Defect of fin thermistor Troubleshooting 2 Refer to thermistor resistance temperature characteristics table on P 275 V2811 Resistance check of the radiator fin thermistor Defect of power unit radiation Intake port is clogged Radiator fin is dirty Outdoor temperature is high NO Replace the thermistor YES Abnormal Is reset poss...

Страница 198: ...r voltage than actual is displayed when the inverter output voltage is checked by tester Refer check 13 to P 234 V2812 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Inverter output voltage check Inverter output voltage is not balanced Normal if within 10V Must be measured when frequency is stable Replace the compressor Compressor in...

Страница 199: ...nector or parts damage may be occurred Inverter output voltage check Inverter output voltage is not balanced Normal if within 10V Must be measured when frequency is stable Compressor overload Inspection of the compressor and refrigerant system is required Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and operating status of the compressor NO Replace th...

Страница 200: ...n off power switch before connect or disconnect connector or parts damage may be occurred Inverter output voltage check Inverter output voltage is not balanced Normal if within 10V Must be measured when frequency is stable Unsatisfactory pressure equalization Check refrigerant system Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and operating status of...

Страница 201: ...unction Detection Check the communication 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 control PC board Defect of outdoor control PC board transmission section Defect of inverter PC board Defe...

Страница 202: ...microcomputer monitor green on the inverter P C B is blinking The voltage between red and white of X1A on the inverter unit is 220 240 V YES Defect of outdoor main PC board or defect of inverter PC board Check the noise filter Z1F for disconnection and check the power supply wiring or the inverter PC board Replace inverter PC board When the LC malfunction occur again replace control PC board YES T...

Страница 203: ...efect After turning the power supply OFF check and repair the main circuit wiring or parts 1 Loose or disconnected wiring between power supply and inverter 2 K1M contact disposition fusion or contact is poor 3 Loose or disconnected noise filter Using a device capable of constant recording of power supply voltage record power supply voltage between 3 phases L1 L2 L2 L3 L3 L1 for about one continuou...

Страница 204: ...s Malfunction is not decided while the unit operation is continued P4 will be displayed by pressing the inspection button Supposed Causes Defect of radiator fin temperature sensor Defect of inverter PC board Troubleshooting 2 Refer to thermistor resistance temperature characteristics table on P 275 V2818 After resetting restart YES YES Is the resistance of thermistor correct Is the resetting possi...

Страница 205: ... C Board is correct type or not by using communication data Supposed Causes Mismatching of Inverter Fan driver P C Board type Defect of initial setting Troubleshooting YES YES Is the P C Board type correct Replace to correct inverter PC board Replace P C Board Is the P C Board replaced NO NO Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occu...

Страница 206: ...aracteristics table on P 275 2 Refer to pressure sensor pressure voltage characteristics table on P 277 V2819 The suction pipe temperature minus coil temperature is 20 C or higher Resistance is normal when measured with the suction pipe thermistor R2T and coil thermistor R4T disconnected from the outdoor unit PC board 1 Out of gas or refrigerant system is clogged Requires check of refrigerant syst...

Страница 207: ...Malfunction Decision Conditions Supposed Causes Power supply reverse 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 boar...

Страница 208: ...y U2 Applicable Models REYQ8 48M Method of Malfunction Detection Detection of voltage of main circuit capacitor built in the inverter and power supply voltage Malfunction Decision Conditions Supposed Causes Power supply insufficient Instantaneous failure Open phase Defect of inverter PC board Defect of outdoor control PC board Defect of K1M Main circuit wiring defect ...

Страница 209: ...ard YES NO NO Does the voltage between terminals P and N gradually rise to 556 VDC Y1 after turning on Monitor field power supply Replace the inverter PC board The voltage between the P and N terminals is 380 VDC Y1 or morewhen the compressor is running Is connection wire connected between the connector X21A and X6A YES NO Is 220 240 V at the connector X1A of outdoor PC board side Check the transm...

Страница 210: ...ns Malfunction is decided when the unit starts operation without check operation Supposed Causes Check operation is not executed Troubleshooting V3052 Has the check operation performed on Outdoor unit P C B Press the BS4 on P C board on the master outdoor unit for 5 seconds or more to execute check operation Replace the main P C board on the outdoor unit NO YES Caution Be sure to turn off power sw...

Страница 211: ... Detection Microcomputer checks if transmission 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 ...

Страница 212: ...door unit transmission 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 o...

Страница 213: ...nit 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 YES YES NO Replace indoor unit PC board Set one remote controller to SLAVE turn the power supply off once and then back on There is possibility of malfunction caused by ...

Страница 214: ...ormal Malfunction Decision Conditions When transmission is not carried out normally for a certain amount of time Supposed Causes Improper connection of transmission wiring between outdoor unit and outdoor unit outside control adaptor Improper cool heat selection Improper cool heat unified address outdoor unit external control adaptor for outdoor unit Defect of outdoor unit PC board A1P Defect of o...

Страница 215: ...LECT to IND YES Fix the outdoor units multi connection transmission wiring and reset power NO Is the outdoor units multi connection transmission wiring normal Is the indoor outdoor unit transmission wiring normal NO YES Fix the indior outdoor unit transmission wiring The cool heat unified address for outdoor units in outdoor outdoor unit transmission is duplicated Set the address correctly YES NO ...

Страница 216: ...ntinue 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 setto SUB Set SS1 to MAIN the power supply...

Страница 217: ...splay U9 Applicable Models All models of indoor units Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Malfunction of transmission 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 ...

Страница 218: ...tes or more NO NO Refer to failure diagnosis for U4 malfunction code YES YES U9 has been displayed for 2 minutes or more NO Turn on all indoor units Refer to failure diagnosis for A1 malfunction code NO YES The A1 display blinks on the remote controllers of otherunits within the same refrigerant system NO Refer to failure diagnosis for UA malfunction code YES The UA display blinks on the remote co...

Страница 219: ...a single outdoor unit system depends on the type of outdoor unit Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred V2827 The total of indoor units displaying UA and indoor units connected to the same refrigerant system is within connectable number of unit Normal NO NO There are too many indoor units within the same refrigerant system Pu...

Страница 220: ...itions Supposed Causes Address duplication of centralized remote controller 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 V2828 Replace indoor unit PC board Address duplication of centralized remote controller The setting must be changed so that the centralized remote control address is...

Страница 221: ...Malfunction Detection Microcomputer checks if transmission between indoor unit and centralized remote 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 F...

Страница 222: ...wired incorrectly Is the master controller s connector for setting master controller disconnected Set the group No correctly Replace indoor unit PC board Fix the wiring correctly Fix the wiring correctly Connect the connector correctly Replace the central PC board Reset power supply simultaneously for all optional controllers for centralized control YES YES NO YES YES YES YES Turn indoor unit s po...

Страница 223: ...oor 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 disconnect connector or parts damage may be occurred V2830 Is indoor outdoor and outdoor outdoor unit transmission wiring normal Replace indoor unit PC board Test operation may not have been...

Страница 224: ...831 NO YES YES After fixing incorrect wiring push and hold the RESET button on the master outdoor unit PC board for 5 seconds Normal NO Is electricity being introduce for the first time after installationor after an indoor or outdoorunit PC board has been replaced Is indoor outdoor and outdoor outdoor unit transmission wiring normal YES Normal NO Does a malfunction occur NO Does a UH malfunction o...

Страница 225: ...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 Is the power supply turned on for indoor units displaying malfunction Is transmission wiring disconnected or wired incorrectly Is the transmission wiring with the master controller disconnected or wired incorrectly Is the master controller s...

Страница 226: ...C Board Defect Remote Controller Display M1 Applicable Models Centralized remote controller Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Defect of centralized remote controller PC board Troubleshooting Replace the centralized remote controller PC board ...

Страница 227: ... transmission wiring disconnected or wired incorrectly The PC board of one of the optional controllers for centralized control is defective Try turning on off using each optional controllers for centralized control and replace the PC board of the one that is unable to control the indoor unit NO NO Fix the wiring correctly YES YES Has a once connected optional controller for centralized control bee...

Страница 228: ...d Control Remote Controller Display MA Applicable Models Centralized remote controller Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Improper combination of optional controllers for centralized control More than one master controller is connected Defect of PC board of optional controller for centralized control ...

Страница 229: ... the power supply for all optional controllers for centralized control simultaneously Arrange so that the connector for setting master control is connected to one controller for centralized control and reset the power supply for all optional controllers for centralized control simultaneously Disconnect the connector for setting master control from the master controller connect to another optional ...

Страница 230: ...Conditions Supposed Causes Address duplication of centralized remote controller Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Are two or more centralized remote controllers connected Disconnect all centralized remote controllers except one and reset the power supply of the centralized remote controller Reset power su...

Страница 231: ...ection Microcomputer checks if transmission between indoor unit and centralized remote 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 centralized remote controller and indoor unit Disconnection of connector for setting master controller or individual combined switchi...

Страница 232: ...d incorrectly Is the master controller s connector for setting master controller disconnected Set the group No correctly Replace indoor unit PC board Fix the wiring correctly Fix the wiring correctly Connect the connector correctly Replace the central PC board Reset power supply simultaneously for all optional controllers for centralized control NO YES NO YES YES NO NO Turn indoor unit s power sup...

Страница 233: ...tection Malfunction Decision Conditions Supposed Causes Defect of schedule timer PC board Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Reset power supply Does the system return to normal YES NO External factor other than equipment malfunction noise etc Replace the indoor unit PC board V2837 ...

Страница 234: ...transmission wiring disconnected or wired incorrectly The PC board of one of the optional controllers for centralized control is defective Try turning on off using each optional controllers for centralized control and replace the PC board of the one that is unable to control the indoor unit YES NO Fix the wiring correctly YES NO Has a once connected optional controller for centralized control been...

Страница 235: ...te Controller Display MA Applicable Models All models of indoor units schedule timer Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Improper combination of optional controllers for centralized control More than one master controller is connected Defect of PC board of optional controller for centralized control ...

Страница 236: ... optional controllers for centralized control simultaneously YES YES NO Is the schedule timer connected Are there two or more optional controllers for centralized control connected with the connector for setting master control YES Is the schedule timer s individual combined connector connected NO NO Cannot be used in combination with a wiring adaptor for electrical appendices Remove the wiring ada...

Страница 237: ...on Conditions Supposed Causes Address duplication of optional controller for centralized control Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred V2840 Are two or more centralized controller connected Reset the power supply for the centralized controller Disconnect all centralized controller except one and reset the cen...

Страница 238: ...mp blinks Applicable Models All models of indoor units Unified ON OFF controller Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Malfunction of transmission between optional controller and indoor unit Connector for setting master controller is disconnected Defect of unified ON OFF controller Defect of indoor unit PC board Malfunction of air conditioner ...

Страница 239: ...ter controller disconnected Set the group No correctly Replace indoor unit 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 YES NO YES Turn the power supply of the indoor unit on YES NO NO YES NO YES NO Has a once connected indo...

Страница 240: ...nified ON OFF controller Centralized controller Schedule timer Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Address duplication of centralized remote controller Improper combination of optional controllers for centralized control Connection of more than one master controller Malfunction of transmission between optional controllers for centralized control Defect o...

Страница 241: ...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 centrali...

Страница 242: ...multaneously Arrange so that the connector for setting master control is connected to one controller for centralized control and reset the power supply for all optional controllers for centralized control simultaneously Disconnect the connector for setting master control from the master controller connect to another optional controller for centralized control and simultaneously reset all optional ...

Страница 243: ...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 switch for setting each address set correctly Is the transmission wiring disconnected or wired incorrectly Replace the PC board of the unified ON OFF controller Fix the wiring correctly Set by remote controller the centralized control addr...

Страница 244: ...g while connector or relay connector is disconnected Check No 9 1 Turn off the power supply 2 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 while connector or relay connector is disconnected Red White Black U V W Measure the resistance values between phases U...

Страница 245: ... the service mode setting enables not to judge the position detection signal malfunction but to output waveform only during inverter operation The waveform can be checked by disconnecting the wiring of compressor After the completion of checks return the system to the previous mode and wait for 30 seconds or more until the discharge of capacitor is completed Then conduct a subsequent work Notes Be...

Страница 246: ...re Replacement Procedure Replacement Procedure Replacement Procedure for INV Compressor for INV Compressor for INV Compressor for INV Compressor VRV II REYQ8M to 48M VRV II REYQ8M to 48M VRV II REYQ8M to 48M VRV II REYQ8M to 48M 1 Replacement Procedure for INV Compressor VRV II REYQ8M 48M 236 1 1 Replacement Procedure 236 ...

Страница 247: ... compressor 8 Remove the rubber caps put on the suction and discharge pipe of the new compressor to release the sealing nitrogen gas Take note that oil may spout due to the pipe inside pressure if the plug put on the equalizing seat is removed before removing of rubber cap 9 Remove the plug put on the equalizing seat of the new compressor 10 Install the outlet pipe on the equalizing seat of the ne...

Страница 248: ...tdoor Unit 259 3 2 Indoor Side 260 4 Option List 265 4 1 Option List of Controllers 265 4 2 Option Lists Outdoor Unit 267 5 Piping Installation Point 268 5 1 Piping Installation Point 268 5 2 The Example of a Wrong Pattern 269 6 REFNET Pipe System 270 6 1 Layout Example 270 6 2 Max Refrigerant Piping Length 271 6 3 Example of Connection R410A Type REYQ8 48M Heat Recovery 273 7 Thermistor Resistanc...

Страница 249: ...Piping Diagrams Si39 306 238 Appendix 1 Piping Diagrams 1 1 Outdoor Unit REYQ8MY1B REYQ10MY1B REYQ12MY1B 4D042069A ...

Страница 250: ...Si39 306 Piping Diagrams Appendix 239 REYQ14MY1B REYQ16MY1B 4D042070A ...

Страница 251: ...e temperature R3T Thermistor for gas line temperature DU220 602D Heat exchanger Gas piping connection port Liquid piping connection port Flare connection Flare connection φ15 9 or less Attached piping Above φ19 1 Fan R3T R1T Electronic expansion valve Filter Filter R2T mm Capacity GAS Liquid 20 25 32 40 50M φ12 7 φ6 4 63 80 100 125M φ15 9 φ9 5 200M φ19 1 φ9 5 250M φ22 2 φ9 5 ...

Страница 252: ...Si39 306 Piping Diagrams Appendix 241 1 3 BS Unit BSVQ100MV1 BSVQ160MV1 BSVQ250MV1 4D042115 ...

Страница 253: ...Wiring Diagrams for Reference Si39 306 242 Appendix 2 Wiring Diagrams for Reference 2 1 Outdoor Unit REYQ8MY1B REYQ10MY1B REYQ12MY1B 3D038581 ...

Страница 254: ...Si39 306 Wiring Diagrams for Reference Appendix 243 REYQ14MY1B REYQ16MY1B 3D038572 ...

Страница 255: ...Wiring Diagrams for Reference Si39 306 244 Appendix 2 2 Field Wiring REYQ8 10 12 14 16MY1B 3D043435 ...

Страница 256: ...Si39 306 Wiring Diagrams for Reference Appendix 245 REYQ18 20 22 24 26 28 30 32MY1B 3D043436 ...

Страница 257: ...Wiring Diagrams for Reference Si39 306 246 Appendix REYQ34 36 38 40 42 44 46 48MY1B 3D043437 ...

Страница 258: ...Si39 306 Wiring Diagrams for Reference Appendix 247 2 3 Indoor Unit FXCQ20M 25M 32M 63MVE 3D039556A ...

Страница 259: ...Wiring Diagrams for Reference Si39 306 248 Appendix FXCQ40M 50M 80M 125MVE 3D039557A ...

Страница 260: ...Si39 306 Wiring Diagrams for Reference Appendix 249 FXZQ20M 25M 32M 40M 50MVE 3D038359 ...

Страница 261: ...Wiring Diagrams for Reference Si39 306 250 Appendix FXFQ25M 32M 40M 50M 63M 80M 100M 125MVE 3D039600 ...

Страница 262: ...Si39 306 Wiring Diagrams for Reference Appendix 251 FXKQ25M 32M 40M 63MVE 3D039564A ...

Страница 263: ...Wiring Diagrams for Reference Si39 306 252 Appendix FXSQ20M 25M 32M 40M 50M 63M 80M 100M 125MVE 3D039561A ...

Страница 264: ...Si39 306 Wiring Diagrams for Reference Appendix 253 FXMQ40M 50M 63M 80M 100M 125MVE 3D039620A ...

Страница 265: ...Wiring Diagrams for Reference Si39 306 254 Appendix FXMQ200M 250MVE 3D039621A ...

Страница 266: ...Si39 306 Wiring Diagrams for Reference Appendix 255 FXHQ32M 63M 100MVE 3D039801C ...

Страница 267: ...Wiring Diagrams for Reference Si39 306 256 Appendix FXAQ20M 25M 32MVE 40M 50M 63MVE 3D034206A ...

Страница 268: ...Si39 306 Wiring Diagrams for Reference Appendix 257 FXLQ20M 25M 32M 40M 50M 63MVE FXNQ20M 25M 32M 40M 50M 63MVE 3D039826A ...

Страница 269: ...Wiring Diagrams for Reference Si39 306 258 Appendix 2 4 BS Unit BSVQ100MV1 BSVQ160MV1 BSVQ250MV1 3D039903 ...

Страница 270: ...0DQ2 Solenoid valve Receiver gas charge SVL Y3S TEV1620DQ2 Solenoid valve Receiver gas discharge SVG Y4S TEV1620DQ2 Solenoid valve Discharge gas pipe closing SVR Y5S BPV1706 Solenoid valve Non operating unit liquid pipe closing SVSL Y6S VPV 803DXF Solenoid valve High pressure gas pipe pressure reduction SVC Y7S BPV1706 4 way selector valve 20S1 Main Y8S VT40110 4 way selector valve 20S2 Sub Y9S VH...

Страница 271: ...nger R2T ST8602A 5 φ6 L1000 20kΩ 25 C Others Float Switch S1L FS 0211B Fuse F1U 250V 5A φ5 2 Thermal Fuse TFu Transformer T1R Parts Name Symbol Model Remark FXCQ 20MVE FXCQ 25MVE FXCQ 32MVE FXCQ 40MVE FXCQ 50MVE FXCQ 63MVE FXCQ 80MVE FXCQ 125MVE Remote Controller Wired Remote Controller BRC1A61 Option Wireless Remote Controller BRC7C62 Option Motors Fan Motor M1F AC 220 240V 50Hz 1φ10W 1φ15W 1φ20W...

Страница 272: ... Heat Exchanger R2T ST8602A 3 φ6 L630 20kΩ 25 C Others Float Switch S1L FS 0211 Fuse F1U 250V 5A φ5 2 Transformer T1R TR22H21R8 Parts Name Symbol Model Remark FXKQ 25MVE FXKQ 32MVE FXKQ 40MVE FXKQ 63MVE Remote Controller Wired Remote Controller BRC1A61 Option Wireless Remote Controller BRC4C61 Motors Fan Motor M1F AC 220 240V 50Hz 1φ15W 4P 1φ20W 4P 1φ45W 4P Thermal Fuse 146 C Thermal protector 120...

Страница 273: ...0kΩ 25 C Others Float Switch S1L FS 0211B Fuse F1U 250V 5A φ5 2 Transformer T1R TR22H21R8 Parts Name Symbol Model Remark FXMQ 40MVE FXMQ 50MVE FXMQ 63MVE FXMQ 80MVE FXMQ 100MVE FXMQ 125MVE FXMQ 200MVE FXMQ 250MVE Remote Controller Wired Remote Controller BRC1A62 Option Wireless Remote Controller BRC4C62 Motors Fan Motor M1F AC 220 240V 50Hz 1φ100W 1φ160W 1φ270W 1φ430W 1φ380W 2 Thermal protector 13...

Страница 274: ...20kΩ 25 C Thermistor Heat Exchanger R2T ST8602A 6 φ6 L 1250 20kΩ 25 C ST8602A 6 φ6 L 1250 20kΩ 25 C Others Fuse F1U 250V 5A φ5 2 Transformer T1R TR22H21R8 Parts Name Symbol Model Remark FXAQ 20MVE FXAQ 25MVE FXAQ 32MVE FXAQ 40MVE FXAQ 50MVE FXAQ 63MVE Remote Controller Wired Remote Controller BRC1A61 Option Wireless Remote Controller BRC7E618 Option Motors Fan Motor M1F AC 220 240V 50Hz 1φ40W 1φ43...

Страница 275: ... L2500 20kΩ 25 C Thermistor for Heat Exchanger R2T ST8602A 9 φ6 L2500 20kΩ 25 C Others Fuse F1U AC250V 5A Transformer T1R TR22H21R8 Parts Name Symbol Model Remark FXNQ 20MVE FXNQ 25MVE FXNQ 32MVE FXNQ 40MVE FXNQ 50MVE FXNQ 63MVE Remote Controller Wired Remote Controller BRC1A62 Option Wireless Remote Controller BRC4C62 Motors Fan Motor M1F AC 220 240V 50Hz 1φ15W 1φ25W 1φ35W Thermal protector 135 C...

Страница 276: ...A104A61 No Part name Model No Function 1 Adaptor for wiring KRP1B61 KRP1B57 KRP1B59 KRP1B3 PC board when equipped with auxiliary electric heater in the indoor unit 2 DIII NET Expander Adaptor DTA109A51 Up to 1024 units can be centrally controlled in 64 different groups Wiring restrictions max length 1000m total wiring length 2000m max number of branches 16 apply to each adaptor No Part name Model ...

Страница 277: ...ay DMS502A51 to provide 3 more DIII NET communication ports Not usable independently 3 2 Optional Di board DAM412A1 Expansion kit installed on the BACnet Gateway DMS502A51 to provide 16 more wattmeter pulse input points Not usable independently 4 DMS IF for use in LON WORKS networks DMS504B51 Interface unit to allow communications between VRV and BMS Operation and monitoring of air conditioning sy...

Страница 278: ...M73T Outdoor unit multi connection piping kit BHFP26M90 Pipe size reducer KHRP25M72TP KHRP25M72HP KHRP25M73TP KHRP26M73HP BHFP22M90P Kit of air discharge duct KPF26B280 2 KPF26B280 KPF26B450 KPF26B450 2 KPF26B450 2 Central drain pan kit KWC26B280 2 KWC26B280 KWC26B450 KWC26B450 2 KWC26B450 2 Refrigerant leak detector kit Field Supply Optional accessories REYQ34MY1B REYQ36MY1B REYQ38MY1B REYQ40MY1B...

Страница 279: ... or go up to an outdoor unit and to make a slope V3036 When the piping length between the multi connection kits or between multi connection kit and outdoor unit is 2m or more prepare a vertical projection part 200mm or more as shown below only on the gas pipe line location less than 2m from multi connection kit The projection part between multi connection piping kits Less than 2m In the case of 2m...

Страница 280: ...ndoor Unit Actual piping length 40m or less Allowable Level Difference Outdoor Unit Outdoor Unit 5m or less Outdoor Unit Indoor Unit 50m or less when an outdoor unit is lower than indoor units 40m or less Indoor Unit Indoor Unit 15m or less Oil is collected to the outdoor unit at the time of a stop because of bottom omission of piping Wrong V3039 Oil is collected to the low level outdoor unit at t...

Страница 281: ...urther branches cannot be included in the system below the REFNET header branch Notes When the capacity ratio of the indoor system to the outdoor unit is more than 100 and when all the indoor units are in operation at the same time then the rated capacity of each unit will be somewhat reduced Special purpose REFNET pipe components must be used for all the pipe work For further details concerning c...

Страница 282: ...d under the indoor unit the level difference is a maximum of 40m V1924 H3 H4 a Outdoor Unit 1 Outdoor Unit 2 Outdoor Unit 3 First Outdoor Branch First Branch c Indoor Units Indoor Units BS Units BS Units BS Units Indoor Units b b H1 H2 First outdoor Branch Outdoor units a First Branch Indoor Units c Outdoor Units Indoor Units b c Max Refrigerant Piping Length m 10m or less than 10m 40m or less tha...

Страница 283: ...REFNET Pipe System Si39 306 272 Appendix ...

Страница 284: ...Si39 306 Appendix 273 DPSOH RI RQQHFWLRQ 5 7 SH 5 4 0 HDW 5HFRYHU ...

Страница 285: ...Si39 306 274 Appendix ...

Страница 286: ... 61 43 9 42 9 24 18 26 6 6 90 17 87 79 44 9 06 8 88 20 24 3 5 85 49 83 25 45 8 71 8 54 22 22 2 4 81 08 78 97 46 8 37 8 21 24 20 3 3 76 93 74 94 47 8 05 7 90 26 18 5 2 73 01 71 14 48 7 75 7 60 28 17 0 1 69 32 67 56 49 7 46 7 31 30 15 6 0 65 84 64 17 50 7 18 7 04 32 14 2 1 62 54 60 96 51 6 91 6 78 34 13 1 2 59 43 57 94 52 6 65 6 53 36 12 0 3 56 49 55 08 53 6 41 6 53 38 11 1 4 53 71 52 38 54 6 65 6 5...

Страница 287: ... 233 14 71 33 92 33 35 121 7 26 7 16 22 228 05 223 08 72 32 78 32 23 122 7 06 6 97 23 218 24 213 51 73 31 69 31 15 123 6 87 6 78 24 208 90 204 39 74 30 63 30 12 124 6 69 6 59 25 200 00 195 71 75 29 61 29 12 125 6 51 6 42 26 191 53 187 44 76 28 64 28 16 126 6 33 6 25 27 183 46 179 57 77 27 69 27 24 127 6 16 6 08 28 175 77 172 06 78 26 79 26 35 128 6 00 5 92 29 168 44 164 90 79 25 91 25 49 129 5 84 ...

Страница 288: ... Low Pressure PL PH Detected Pressure High Side MPa PL Detected Pressure Low Side MPa 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 MPa VL Low pressure MPa V Voltage V Output Voltage VH VL Detected Pressure V3053 ...

Страница 289: ...lacing the Inverter s Power Transistors and Diode Modules Decision according to continuity check by analog tester Before checking disconnect the electric wiring connected to the power transistor and diode module Inverter PC board AIP X10A L1 P1 Electronic circuit Inverter P C Board P2 IGBT X11A U V W N L1 L2 L3 X10A DM N3 Fasten Tab P3 L2 L3 PC0208 X11A Pin U V W N P2 P1 P3 N3 V2895 ...

Страница 290: ...erter PC Board Decision If other than given above the power unit is defective and must be replaced Notes If using a digital tester and continuity may be reversed Diode Module Decision If other than given above the diode module is defective and must be replaced Notes If using a digital tester and continuity may be reversed ...

Страница 291: ...Method of Replacing The Inverter s Power Transistors and Diode Modules Si39 306 280 Appendix ...

Страница 292: ...ons for New Precautions for New Precautions for New Precautions for New Refrigerant R410 Refrigerant R410 Refrigerant R410 Refrigerant R410 1 Precautions for New Refrigerant R410 282 1 1 Outline 282 1 2 Refrigerant Cylinders 284 1 3 Service Tools 285 ...

Страница 293: ... mixture refrigerant 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 HFC units Units using new refrigerants HCFC units Refrigerant name R407C R410A R22 Composing substances Non azeotropic mixture of HFC32 HFC125 and HFC134a 1 Quasi azeotropi...

Страница 294: ... New Refrigerant R410 283 Thermodynamic characteristic of R410A 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 ...

Страница 295: ...ed in high pressure vessels Although those vessels are durable and strong careless handling can cause damage that can lead to unexpected accidents Do not drop vessels let them fall apply impact or roll them on the ground 3 Storage Although R410A is not flammable it must be stored in a well ventilated cool and dark place in the same way as any other high pressure gases It should also be noted that ...

Страница 296: ... tools for R22 and R410A 2Thread specification differs for R410A and R407C Charging cylinder 2Weighting instrument used for HFCs 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 Charge mouthpiece 2Seal material is different between R22 and HFCs 2Thread sp...

Страница 297: ... pipe extension margin of 0 to 0 5mm was provided for flaring For R410A air conditioners perform pipe flaring with a pipe extension margin of 1 0 to 1 5mm For clutch type only 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 R410A 9 1 13 2 16 6 19 7 24 0 Class 1 Conventional 9 0 13 0 16 ...

Страница 298: ...check valve Specifications 2 Discharge speed z Maximum degree of vacuum 50 l min 50Hz 100 7 kPa 5 torr 755 mmHg 60 l min 60Hz 2 Suction port UNF7 16 20 1 4 Flare UNF1 2 20 5 16 Flare with adapter Differences 2 Equipped with function to prevent reverse oil flow 2 Previous vacuum pump can be used by installing adapter Nominal size Class 1 Class 2 Previous 1 2 24 26 24 5 8 27 29 27 Dimension B For cl...

Страница 299: ...gen 5 Refrigerant oil Air compal 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 R410A and R22 units 6 Gauge manifold for R410A Specifications 2 High pressure gauge 0 1 to 5 3 MPa 76 cmHg to 53 kg cm2 2 Low pressure gauge 0 1 to 3 8 MPa 76 c...

Страница 300: ...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 Charging cylinder Specifications 2 Use weigher for refrigerant charge listed below to charge directly from refrigerant cylinder Differences 2 The cylinder can not be used for mixed refrigerant since mixing...

Страница 301: ...liquid refrigerant charging 2 A manifold with separate ports for HFCs and previous refrigerants is equipped as standard accessories Differences 2 Measurement is based on weight to prevent change of mixing ratio during charging 10 Charge mouthpiece Specifications 2 For R410A 1 4 5 16 2min 2 5min 2 Material is changed from CR to H NBR Differences 2 Change of thread specification on hose connection s...

Страница 302: ...r Units in the Same System 206 UA Excessive Number of Indoor Units 208 UC Address Duplication of Centralized Remote Controller 209 UE Malfunction of Transmission between Centralized Remote Controller and Indoor Unit 210 214 220 UF Refrigerant System not Set Incompatible Wiring Piping 212 UH Malfunction of System Refrigerant System Address Undefined 213 A A0 148 A1 149 A3 150 A6 152 A7 153 A9 155 A...

Страница 303: ...t PCB 146 Malfunction of Capacity Determination Device 158 Malfunction of Discharge Pipe Pressure Sensor 184 Malfunction of Drain Level Control System S1L 150 Malfunction of Inverter Radiating Fin Temperature Rise 186 Malfunction of Inverter Radiating Fin Temperature Rise Sensor 193 Malfunction of Moving Part of Electronic Expansion Valve Y1E Y2E Y3E 170 Malfunction of Receiver Outlet Liquid Pipe ...

Страница 304: ... 285 Setting by dip switches 113 Setting by pushbutton switches 113 Setting Contents and Code No 104 Setting mode 1 115 Setting mode 2 116 Setting of Refrigerant Additional Charging Operation 129 Special Control 69 Specifications 10 BS Units 40 Outdoor Units 10 Startup Control 69 STD Compressor Overload Protection 84 Stopping Operation 77 T Test Operation 96 Procedure and Outline 96 Thermistor Res...

Страница 305: ...Si39 306 iv Index ...

Страница 306: ...20 UF Refrigerant System not Set Incompatible Wiring Piping 212 UH Malfunction of System Refrigerant System Address Undefined 213 A Abnormal Discharge Pipe Temperature 172 Actuation of High Pressure Switch 164 Actuation of Low Pressure Sensor 165 Additional refrigerant charge total flow 129 C Centralized Control Group No Setting 109 BRC1A Type 109 BRC7C Type 109 Group No Setting Example 110 Charge...

Страница 307: ...nsistors and Diode Modules 278 Diode Module 279 Power Transistor IGBT On Inverter PC Board 279 O Operation Lamp Blinks 227 Outdoor Unit PC Board Layout 100 P PC Board Defect 149 163 222 Piping Diagrams 238 BS Unit 241 Indoor Unit 240 Outdoor Unit 238 Piping Installation Point 268 Pressure Sensor 277 Procedure and Outline 96 R REFNET Pipe System Example of Connection R410A Type 273 Layout Example 2...

Страница 308: ... vii W Weigher for refrigerant charge 290 Wired Remote Controller 101 Wireless Remote Controller Indoor Unit BRC7C type 102 Wiring Diagrams for Reference 242 BS Unit 258 Field Wiring 244 Indoor Unit 247 Outdoor Unit 242 ...

Страница 309: ...an Tokyo office Shinjuku Sumitomo Bldg 6 1 Nishi Shinjuku 2 chome Shinjuku ku Tokyo 163 0235 Japan Zandvoordestraat 300 B 8400 Oostende Belgium l For further improvement specifications or designs are subject to change without prior notice Printed in Singapore 12 2003 COS Service Manual R410A Heat Recovery 50Hz Si39 306 ...

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