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Daikin VRV III-S RXYMQ36 48PVJU, Service Manual

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Daikin VRV III-S RXYMQ36 48PVJU Service Manual Download Page 161

Troubleshooting by Indication on the Remote Controller

SiUS34-907

152

Troubleshooting

3.27

“

JA

”

 Malfunction of High Pressure Sensor

Remote 
Controller 
Display

JA

Applicable 
Models

RXYMQ36 · 48PVJU

Method of 
Malfunction 
Detection

Malfunction is detected from the pressure detected by the high pressure sensor.

Malfunction 
Decision 
Conditions

When the high pressure sensor is short circuit or open circuit
(Not less than 612psi, or 1.45psi and below)

Supposed 
Causes

Defect of high pressure sensor system

Connection of low pressure sensor with wrong connection

Defect of outdoor unit PCB

Defective connection of high pressure sensor

Summary of Contents for VRV III-S RXYMQ36 48PVJU

Page 1: ...RXYMQ36 48PVJU R 410A Heat Pump 60Hz SiUS34 907...

Page 2: ...Indoor Units 7 Part 3 List of Electrical and Functional Parts 20 1 List of Electrical and Functional Parts 21 1 1 Outdoor Unit 21 1 2 Indoor Unit 22 Part 4 Refrigerant Circuit 26 1 Refrigerant Circui...

Page 3: ...ield Setting from Remote Controller 59 3 2 Field Setting from Outdoor Unit 73 Part 7 Troubleshooting 90 1 Symptom based Troubleshooting 92 2 Troubleshooting by Remote Controller 95 2 1 Self diagnosis...

Page 4: ...alfunction of Inverter Radiation Fin Temperature Rise 159 3 31 L5 Inverter Compressor Abnormal 162 3 32 L8 Inverter Current Abnormal 164 3 33 L9 Inverter Compressor Start up Error 166 3 34 P1 High Vol...

Page 5: ...206 5 3 Display Under Centralized Control Blinks Repeats Double Blink 209 Part 8 Appendix 222 1 Piping Diagrams 223 1 1 Outdoor Unit 223 1 2 Indoor Unit 224 2 Wiring Diagrams 227 2 1 Outdoor Unit 227...

Page 6: ...as The refrigerant gas may cause frostbite Use only pipes flare nuts tools and other materials designed specifically for R410A refrigerant systems Never use tools or materials designed for R22 refrige...

Page 7: ...atches or have become deteriorated have them replaced Damaged cable and wires may cause an electrical shock or fire Do not use a joined power cable or an extension cord or share the same power outlet...

Page 8: ...VIII S series Heat Pump System Daikin offers a wide range of models to respond to building and office air conditioning needs We are confident that customers will be able to find the models that best s...

Page 9: ...SiUS34 907 Safety Considerations viii...

Page 10: ...SiUS34 907 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 3 3 Capacity Range 4...

Page 11: ...M VJ 4 Way Ceiling Mounted Cassette Type Unit 2 2 FXZQ 07M 09M 12M 18M Slim Ceiling Mounted Duct Type FXDQ 07M 09M 12M 18M 24M Ceiling Mounted Duct Type FXMQ 07P 09P 12P 18P 24P 30P 36P 48P Ceiling Su...

Page 12: ...nted cassette unit 2 2 FXZQ07M7 FXZQ09M7 FXZQ12M7 FXZQ18M7 Wall mounted type FXAQ07MVJU FXAQ09MVJU FXAQ12MVJU FXAQ18MVJU FXAQ24MVJU Slim ceiling mounted duct type FXDQ07MVJU FXDQ09MVJU FXDQ12MVJU FXDQ...

Page 13: ...ton 1 5ton 2ton 2 5ton 3ton 4ton Capacity Index 7 5 9 5 12 18 24 30 36 48 Ceiling Mounted Cassette Type Multi Flow FXFQ 12M 18M 24M 30M 36M 4 Way Ceiling Mounted Cassette Type Unit 2 2 FXZQ 07M 09M 12...

Page 14: ...SiUS34 907 Specifications 5 Part 2 Specifications 1 Specifications 6 1 1 Outdoor Units 6 1 2 Indoor Units 7...

Page 15: ...ions r p m 6480 6480 Motor Output 2 2kW 60rps kW 2 5 3 0 Starting Method Direct on line Direct on line Fan Type Propeller Fan Propeller Fan Motor Output kW 0 070 2 0 070 2 Airflow Rate cfm 3 740 3 740...

Page 16: ...r Cooling and Heating Sound Absorbing Thermal Insulation Material Foamed Polystyrene Foamed Polyethylene Foamed Polystyrene Foamed Polyethylene Foamed Polystyrene Foamed Polyethylene Piping Connection...

Page 17: ...ive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Foamed...

Page 18: ...or Cooling and Heating Microprocessor Thermostat for Cooling and Heating Air Filter Resin Net with Mold Resistant Resin Net with Mold Resistant Resin Net with Mold Resistant Resin Net with Mold Resist...

Page 19: ...0 0015 Drive Direct Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat f...

Page 20: ...44 0 7 Fan Model Type Sirocco Fan Sirocco Fan Motor Output kw 0 13 0 13 Airflow Rate H L cfm 440 350 H L 580 460 H L External Static Pressure 4 psi 0 0064 0 0022 0 0064 0 0022 Drive Direct Drive Dire...

Page 21: ...Sirocco Fan Sirocco Fan Sirocco Fan Motor Output HPkw 0 09 0 09 0 09 Airflow Rate HH H L cfm 317 264 229 317 264 229 335 282 246 External Static Pressure 4 Wg 0 4 0 12 0 4 0 12 0 4 0 12 Drive Direct...

Page 22: ...Sirocco Fan Sirocco Fan Sirocco Fan Motor Output kw 0 04 0 04 0 04 Airflow Rate HH H L cfm 635 582 529 688 618 565 882 794 706 External Static Pressure 4 Wg 0 80 0 20 0 80 0 20 0 80 0 20 Drive Direct...

Page 23: ...x 1400 x 700 11 13 16 55 1 8 27 9 16 300 x 1400 x 700 Coil Cross Fin Coil Rows Stages FPI 3 16 15 3 16 15 Face Area ft m 4 12 1 3 4 12 1 3 Fan Model Type Sirocco Fan Sirocco Fan Motor Output kw 0 04...

Page 24: ...fm 410 340 710 600 830 670 Drive Direct Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Micropro...

Page 25: ...260 160 280 175 300 180 Drive Direct Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Microproces...

Page 26: ...Face Area ft m 2 29 0 7 2 29 0 7 Fan Model QCL9686 QCL9686 Type Cross Flow Fan Cross Flow Fan Motor Output kw 0 043 0 043 Airflow Rate H L cfm 500 400 635 470 Drive Direct Drive Direct Drive Temperat...

Page 27: ...210 490 380 560 420 Drive Direct Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Microprocessor...

Page 28: ...80 210 490 380 560 420 Drive Direct Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Microprocess...

Page 29: ...SiUS34 907 20 List of Electrical and Functional Parts Part 3 List of Electrical and Functional Parts 1 List of Electrical and Functional Parts 21 1 1 Outdoor Unit 21 1 2 Indoor Unit 22...

Page 30: ...3A1 A1P X25A Solenoid valve Hot gas Y2S TEV 1620DQ2 A1P X26A Solenoid valve Unload circuit Y3S TEV 1620DQ2 A1P X27A Pressure related parts Pressure switch INV S1PH ACB 4UB10 OFF 580 0 21 8psi ON 435 2...

Page 31: ...Temp R3T ST8605A 4 8 L800 20k 77 F Thermistor Heat Exchanger R2T ST8602 5 6 L1000 20k 77 F Others Float Switch S1L FS 0211B Fuse F1U 250V 5A 5 2 Transformer T1R TR25H25R0 Parts Name Symbol Model Rema...

Page 32: ...F Thermistor Heat Exchanger R2T ST8602A 4 6 L800 20k 77 F Others Float Switch S1L FS 0211B Fuse F1U 250V 5A 5 2 Transformer T1R TR25H25R0 Parts Name Symbol Model Remark FXMQ 07PVJU FXMQ 09PVJU FXMQ 1...

Page 33: ...77 F ST8605A 4 8 L 800 20k 77 F Thermistor Heat Exchanger R2T ST8602A 4 6 L 800 20k 77 F ST8602A 4 6 L 800 20k 77 F Others Fuse F1U 250V 5A Transformer T1R TR25H25R0 Parts Name Symbol Model Remark FXA...

Page 34: ...emp R3T ST8605 9 8 L2500 20k 77 F Thermistor for Heat Exchanger R2T ST8602A 9 6 L2500 20k 77 F Others Fuse F1U AC250V 5A Transformer T1R TR25H25R0 Parts Name Symbol Model Remark FXNQ 12MVJU FXNQ 18MVJ...

Page 35: ...SiUS34 907 26 Refrigerant Circuit Part 4 Refrigerant Circuit 1 Refrigerant Circuit 27 1 1 RXYMQ36 48P 27 2 Functional Parts Layout 29 2 1 RXYMQ36 48P 29...

Page 36: ...essure of 580psi or more to stop the compressor operation S Fusible plug In order to prevent the increase of pressure when abnormal heating is caused by fire or others the fusible part of the plug is...

Page 37: ...Refrigerant Circuit SiUS34 907 28 Refrigerant Circuit S1PH S1NPH C 3D065366 A P G N M O H F S E T D D S1NPL...

Page 38: ...S34 907 Functional Parts Layout Refrigerant Circuit 29 2 Functional Parts Layout 2 1 RXYMQ36 48P THERMISTOR SUCTION 2 R5T MARKING COLOR GREEN S1PH PRESSURE SWITCH FOUR WAY VALVE FOUR WAY VALVE LEAD WI...

Page 39: ...ation 40 3 5 Restart Standby 41 3 6 Stopping Operation 41 4 Protection Control 42 4 1 High Pressure Protection Control 42 4 2 Low Pressure Protection Control 43 4 3 Discharge Pipe Protection Control 4...

Page 40: ...rmal operation Compressor PI control Electronic expansion valve PI control Protection control Indoor unit thermostat ON Defrost IN conditions are met No Yes Defrosting operation Cooling or heating ope...

Page 41: ...ay valve Y1S OFF Main electronic expansion valve EV1 480 pls Subcooling electronic expansion valve EV3 PI control Hot gas bypass valve SVP OFF This valve turns on with low pressure protection control...

Page 42: ...ting TcS Target Tc value Varies depending on Tc setting operating frequency etc L M Normal factory setting H 43 46 49 STn INV Full load INV Unload STn INV Full load INV Unload STn INV Full load INV Un...

Page 43: ...discharge pipe superheated degree of inverter compressor Subcooling Electronic Expansion Valve EV3 Control Makes PI control of the electronic expansion valve Y3E to keep the superheated degree SH of t...

Page 44: ...tep 5 or higher When the outdoor temperature 54 F it will run in Step 1 or higher 850rpm 715rpm 580rpm 445rpm 360rpm 285rpm 400rpm 250rpm 0 rpm M1F 815rpm 680rpm 545rpm 410rpm 325rpm 250rpm 0 rpm 0 rp...

Page 45: ...is achieved Outdoor unit fan STEP 7 Ta 68 F OFF Ta 68 F STEP 4 1 step 15 sec when Pc 313 psi 1 step 15 sec when Pc 257 psi Four way valve Y1S Holds OFF OFF Main electronic expansion valve EV1 0 pls 4...

Page 46: ...or Oil return preparation operation Oil return operation Post oil return operation Compressor Take the current step as the upper limit 52 Hz Full load Low pressure constant control Same as the oil ret...

Page 47: ...inute to reduce noise on changing of the four way valve Outdoor Unit Actuator Oil return preparation operation Oil return operation Post oil return operation Compressor Upper limit control 140 Hz Full...

Page 48: ...he compressor stops for 1 minute to reduce noise on changing of the four way valve Outdoor unit actuator Defrost preparation operation Defrost operation Post Defrost operation Compressor Upper limit c...

Page 49: ...esidual Operation in Heating Operation Actuator Pump down residual operation Step 1 Pump down residual operation Step 2 Compressor 124 Hz Full load 52 Hz Full load Outdoor unit fan Fan control Fan con...

Page 50: ...ks Compressor OFF Outdoor unit fan Ta 86 F STEP 4 Ta 86 F OFF Four way valve Y1S Keep former condition Main electronic expansion valve EV1 0 pls Subcooling electronic expansion valve EV3 0 pls Hot gas...

Page 51: ...sure sensor detection value INV upper limit frequency 3 step down from current When occurring 10 times within 60 minutes high pressure switch is activated without high pressure standby thus outputting...

Page 52: ...3 times within 30 min the malfunction code E4 is output Pe 21 8 psi Pe 43 5 psi Hot gas SVP OFF Hot gas SVP ON Ts Teg 14 4 degree Pe 8 7 psi Pe 13 1 psi or After 10 sec Pe 24 7 psi Pe 24 7 psi Pe 29...

Page 53: ...oor air temperature Tp Value of compressor port temperature calculated by Tc and Te and suction superheated degree or Discharge pipe protection control not limited INV upper limit frequency 1 step dow...

Page 54: ...ing 4 times within 60 min the malfunction code L8 is output INV upper limit frequency 1 step down from current compressor frequency INV upper limit frequency 1 step up from current compressor frequenc...

Page 55: ...Control The drain pump is controlled by the ON OFF buttons 4 button 1 4 given in the figure below 6 1 1 When the Float Switch is Tripped while the Cooling Thermostat is ON 1 Normal operation The objec...

Page 56: ...r conditioner will come to an abnormal stop if the float switch is turned OFF and not turned ON again within 5 minutes while the cooling thermo is OFF 6 1 3 When the Float Switch is Tripped during Hea...

Page 57: ...tion residual 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 5 Malfunction residual The remote c...

Page 58: ...factory setting position is standard position 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 Ceili...

Page 59: ...t control is carried out using a body thermostat sensor or using the sensor in the remote controller near the position of the user when the suction temperature is near the preset temperature Ex When c...

Page 60: ...an be used so that suction temperature is higher than the preset temperature Ex When heating Assuming the preset temperature in the figure above is 75 F and the suction temperature has changed from 64...

Page 61: ...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...

Page 62: ...LL Level Level Level Halt Swinging OFF Level Level Level Setting the wind direction OFF Level Level Level Cooling Thermostat of micro computer dry is on Swinging L 1 Swinging Swinging Swinging Settin...

Page 63: ...Test Operation 1 Test Operation 55 1 1 Procedure and Outline 55 1 2 Operation when Power is Turned On 57 2 Outdoor Unit PCB Layout 58 3 Field Setting 59 3 1 Field Setting from Remote Controller 59 3 2...

Page 64: ...ger tester for other circuits than 208 230V circuit Are the setscrews of wiring not loose Is the electrical component box covered with an insulation cover completely Is pipe size proper The design pre...

Page 65: ...t refrigerant Check if the additional refrigerant charge has been finished correctly Recalculate the required amount of refrigerant from the piping length and add an adequate amount of refrigerant F3...

Page 66: ...SET BS5 button on the outdoor unit PCB Operation becomes possible for about 2 minutes If you do not push the RESET button the unit cannot be run for up to 10 minutes to automatically set master power...

Page 67: ...Outdoor Unit PCB Layout SiUS34 907 58 Test Operation 2 Outdoor Unit PCB Layout Outdoor unit PCB Caution Cover electric parts with an insulating sheet during inspection to prevent electric shock...

Page 68: ...using Up Down button In the case of group total setting this operation is not needed In the case of individual setting per indoor unit current settings are displayed And SECOND CODE NO means no funct...

Page 69: ...on twice Backlight goes out and 10 Checking the connection Please stand by is displayed for initialization After the initializa tion the basic screen returns Installation of optional accessories on th...

Page 70: ...e field set mode 2 Select the desired mode No with the button 3 Pushing the button select the first code No 4 Pushing the button select the second code No 5 Push the timer button and check the setting...

Page 71: ...indoor unit mode No 20 22 and 23 have been selected push the BS8 Q BUTTON unit No and select the INDOOR UNIT NO to be set This operation is unnecessary when setting by group 5 Push the BS9 BUTTON R se...

Page 72: ...thermostat Only remote controller thermostat 3 3 Display time to clean air filter calculation Set when filter sign is not to be displayed Display No display 4 12 22 0 Optional accessories output selec...

Page 73: ...spended type Wallmounted type Floor standing type Concealed floor standing type Multi flow FXFQ FXZQ FXDQ FXMQ FXHQ FXAQ FXLQ FXNQ Filter sign Ultra long life filter sign Remote controller thermostat...

Page 74: ...t Switching Using this setting operation output signal and abnormal output signal can be provided Output signal is output between terminals K1 and K2 of customized wiring adaptor an optional accessory...

Page 75: ...s it possible to change differential values for mode selection while in automatic operation mode The automatic operation mode setting is made by the use of the Operation Mode Selector button Mode No F...

Page 76: ...f FXFQ36 Caution 1 The air conditioner starts operation suddenly after power failure reset or the main power supply turned on again Consequently the user might be surprised with question for the reaso...

Page 77: ...on between Humidifier and Drain Pump This is used to interlock the humidifier with the drain pump When water is drained out of the unit this setting is unnecessary 19 Individual Setting of Ventilation...

Page 78: ...iring adaptor for other air conditioners refer to the instruction manual attached NOTICE Enter the group No and installation place of the indoor unit into the attached installation table Be sure to ke...

Page 79: ...er for centralized control 1 When in the normal mode push button for 4 seconds or more and operation then enters the field set mode 2 Set mode No 00 with button 3 Set the group No for each group with...

Page 80: ...displayed by operation modes 0 through 19 ON OFF control impossible by remote controller Used when you want to turn on off by centralized remote controller only Cannot be turned on off by remote cont...

Page 81: ...y remote controller Control mode Operation OFF Temperature control Operation mode setting Unified operation individual operation by centralized remote controller or operation controlled by timer Unifi...

Page 82: ...ing field settings are made by dip switches on PCB Dipswitch Setting item Description No Setting DS1 1 ON Cool Heat change over setting Used to set cool heat change over setting by remote controller e...

Page 83: ...ting Please Attach the Capacity Setting Adaptor corresponding to Capacity Class ex 112 140 160 in connector X51A See Below Capacity Setting Adaptor Capacity Class 4 112 5 140 6 160 CAPACITY SETTING AD...

Page 84: ...ESET Setting mode 1 Monitor mode 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 on...

Page 85: ...S1 button to set the system to Setting mode 1 Normally Setting mode 1 is set In case of other status push MODE BS1 button one time and set to Setting mode 1 Check the system for each condition through...

Page 86: ...low noise signal is input from outside 26 Night time low noise operation start setting Sets starting time of nighttime low noise operation Night time low noise setting is also required 27 Night time...

Page 87: ...h h h h k h Low k h h h h h k 9 Tc setting k h h k h h k High k h h h k h h Normal factory setting k h h h h k h Low k h h h h h k 10 Defrost changeover setting k h h k h k h Quick defrost k h h h k h...

Page 88: ...with 4 step or lower k h h h k h h 26 Night time low noise operation start setting k h k k h k h About 20 00 k h h h h h k About 22 00 factory setting k h h h h k h About 24 00 k h h h k h h 27 Night...

Page 89: ...code table Refer to P 103 15 Contents of malfunction 1 cycle before k h h k k k k 16 Contents of malfunction 2 cycle before k h k h h h h 20 Contents of retry the latest k h k h k h h 21 Contents of...

Page 90: ...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...

Page 91: ...ANGEOVER UNDER CONTROL is flashing in all connected remote controllers Select an indoor unit to be used as the master unit in accordance with the request from the customer It is recommended to select...

Page 92: ...for Each Outdoor Unit System by Cool Heat Switching Remote Controller It does not matter whether or not there is outdoor outdoor unit wiring Set outdoor unit PCB DS1 1 to OUT factory setting Set cool...

Page 93: ...hile in Setting mode 2 select the setting condition i e 20 00 22 00 or 24 00 for set item No 26 Setting of start time of nighttime low noise operation Use the start time as a guide since it is estimat...

Page 94: ...2 H1P on In setting 1 push and hold the BS1 MODE button for more than 5 seconds Setting mode 2 is entered and H1P lights Push the BS2 SET button several times and match the LED display with the Setti...

Page 95: ...OFF Factory setting Mode 1 l Mode 2 l Mode 3 l l 26 Night time low noise start setting PM 8 00 l PM 10 00 Factory setting l PM 0 00 l 27 Night time low noise end setting AM 6 00 l AM 7 00 l AM 8 00 Fa...

Page 96: ...e to the service port for additionally charging the refrigerant In the stopped status set to ON the refrigerant additional charging operation A in set mode 2 H1P Turn on The operation is automatically...

Page 97: ...frigerant Recovery Vacuuming mode to ON The respective expansion valve of indoor and outdoor units are fully opened TEST OPERATION and UNDER CENTRALIZED CONTROL are displayed on the remote controller...

Page 98: ...lation 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 or discharge pipe t...

Page 99: ...alfunction of Thermistor R3T for Gas Pipe 126 3 11 C9 Malfunction of Thermistor R1T for Suction Air 127 3 12 CJ Malfunction of Thermostat Sensor in Remote Controller 128 3 13 E1 PCB Defect 129 3 14 E3...

Page 100: ...nd Sub Remote Controllers 185 3 42 U9 Malfunction of Transmission between Indoor Units and Outdoor Units in the Same System 186 3 43 UA Improper Combination of Indoor and Outdoor Units etc 187 3 44 UC...

Page 101: ...ources e g OA equipment located in a room 4 The system does not operate The system stops and immediately restarts operation If the OPERATION lamp on the remote controller turns ON the system will be n...

Page 102: ...is brought to fan LL operation so that no one gets cold air Furthermore if fan operation mode is selected when other indoor unit is in heating operation the system will be brought to fan LL operation...

Page 103: ...hat the compressor changes the operating frequency Normal operation 12 Dust comes out from the system Dust comes out from the system when it restarts after the stop for an extended period of time Dust...

Page 104: ...Test Operation Maintenance Contact Field Settings Energy Saving Options Prohibit Buttons Min Setpoints Differential Group Address Indoor unit AirNet Address Outdoor unit AirNet Address Error History I...

Page 105: ...for the particular model 1 Checking a error or warning Mode Fan Speed Cancel Menu OK Screen Operation lamp Operation Status Display Abnormal shutdown The system stops operating The operation lamp gree...

Page 106: ...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 abno...

Page 107: ...Troubleshooting by Remote Controller SiUS34 907 98 Troubleshooting The right side digit of the code changes as shown below when the UP and DOWN buttons are pressed...

Page 108: ...nter the Maintenance Mode Maintenance Mode Operation Method 1 Select the mode No Select the desired item from the Maintenance menu and then press Menu OK button 2 Select the Item 2 Select the desired...

Page 109: ...idifier ON OFF 9 TBF Anti freezing control ON OFF 10 FLOAT 11 T1 T2 12 Unit No Select the Unit No you want to check SkyAir VRV 13 Th1 Suction air thermistor Suction air thermistor 14 Th2 Heat exchange...

Page 110: ...can be transferred to another 2 Transfer Unit No 8 Addressed Sensor Value Unit No 0 15 Select the Unit No you want to check Code 00 01 02 03 04 05 06 07 08 09 Remote controller thermistor F Suction ai...

Page 111: ...n Mode Fan Speed Cancel Menu OK Screen Operation lamp Operation Status Display Abnormal shutdown The system stops operating The operation lamp green starts to blink The message Error Press Menu button...

Page 112: ...l Malfunction of Outdoor Unit Fan Motor 138 E9 l Malfunction of Moving Part of Electronic Expansion Valve Y1E Y2E 141 F3 l Abnormal Discharge Pipe Temperature 143 F6 l Refrigerant Overcharged 145 H3...

Page 113: ...of Centralized Controller 190 UE l Malfunction of Transmission between Centralized Controller and Indoor Unit 191 UF l System is not Set yet 194 UH l Malfunction of System Refrigerant System Address U...

Page 114: ...abnormal lock of outdoor unit fan Detection of DC fan 1 motor lock E7 Detection of DC fan 2 motor lock Malfunction of electronic expansion valve EV1 E9 EV3 Faulty sensor of outdoor air temperature Fa...

Page 115: ...F6 l h l l h l h h h h l h h l l J3 l h l l h l h h l l l h h h h l h h 1 J5 l h l h l l h h h h l h h l h h h h l h l J6 l h l l h l h h h h l h h J7 l h l l l l h h h h l h h J9 l l h h l l h h h h...

Page 116: ...ntents of malfunction Malfunction code Open phase Power supply imbalance Imbalance of inverter power supply voltage P1 Faulty temperature sensor of inverter radiation fin Faulty thermistor of inverter...

Page 117: ...h h h h l h h l l U2 l h h l h l h h h h l h h 1 l h h h h h l l h h h h l h h l h l h h h h l h h h l U3 l h h l l l h h h h l h h l l l h h h h l h l l l U4 l h l h h l h h h h l h h l l l h h h h l...

Page 118: ...Actuation of external protection device Improper field set Defect of indoor unit PCB Troubleshooting Actuation of external protection device Check the setting state of the ON OFF input from outside by...

Page 119: ...PROM E PROM Type of nonvolatile memory Maintains memory contents even when the power supply is turned off Supposed Causes Defect of indoor unit PCB External factors such as noise Troubleshooting Does...

Page 120: ...HQ Option FXAQ Option Method of Malfunction Detection By float switch OFF detection Malfunction Decision Conditions When rise of water level is not a condition and the float switch goes OFF Supposed C...

Page 121: ...B NO NO A short circuit connector is connected to X8A or X15A The float switch is connected to X8A or X15A of the indoor unit PCB NO NO Connect either a short circuit connector or float switch and tur...

Page 122: ...hen the fan revolutions do not increase Supposed Causes Broken wires in short circuit of or disconnection of connectors from the fan motor harness Faulty fan motor Broken wires or faulty insulation Ab...

Page 123: ...YES Properly connect the connector Is the connector X20A or X4A for the fan motor properly connected to the indoor unit PCB 1 NO NO Replace the fan motor By disconnecting the connector X20A or X4A for...

Page 124: ...t voltage to the fan Supposed Causes Faulty indoor fan motor Broken wires Faulty contact Troubleshooting Properly connect the connectors At this time check for any faulty connector contact or broken w...

Page 125: ...the fan motor Detection from the current flow on the fan PCB when the fan motor starting operation Malfunction Decision Conditions An overcurrent flows The RPM is less than a certain level for 6 secon...

Page 126: ...ed YES NO NO Replace the fan PCB A2P The fuse F3U white on the fan PCB A2P has no continuity NO NO Replace the fan motor The fan can be moved lightly by hand after the fan motor connector of the fan P...

Page 127: ...and VCC HW HV or HU terminals of the motor connector with five conductors A Replace the fan motor The resistors among U V and W are unbalanced or short circuited NO Remove the signal connector from t...

Page 128: ...on 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 energ...

Page 129: ...in YES NO Replace the limit switch connecting cable The connecting cable is short circuited or disconnected YES Replace the swing motor The limit switch functions normally NO Caution Be sure to turn o...

Page 130: ...ctronic expansion valve Defect of indoor unit PCB Defect of connecting cable Troubleshooting After connecting turn the power supply off and then back on The electronic expansion valve is connected to...

Page 131: ...electronic expansion valve Discount the electronic expansion valve from the PCB and check the continuity between the connector pins Normal Continuity No continuity Pin No 1 White 2 Yellow 3 Orange 4...

Page 132: ...t 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 PCB Trou...

Page 133: ...ration and 1 When the capacity code is not saved to the PCB and the capacity setting adaptor is not connected 2 When a capacity that does not exist for that unit is set Supposed Causes You have forgot...

Page 134: ...es Defect of connection of thermistor Defect of thermistor R2T for liquid pipe Defect of indoor unit PCB Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P 241 3 5 k...

Page 135: ...connection of thermistor Defect of indoor unit thermistor R3T for gas pipe Defect of indoor unit PCB Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P 241 0 6 kW to...

Page 136: ...auses Defect of connection of thermistor Defect of indoor unit thermistor R1T for air inlet Defect of indoor unit PCB Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table o...

Page 137: ...ses Defect of remote controller thermistor Defect of remote controller PCB Troubleshooting Note 1 How to delete the record of malfunction codes Press the On Off button for 4 seconds and more while the...

Page 138: ...tion between the indoor unit and the outdoor unit are not normal Supposed Causes Defect of outdoor unit PCB A1P Defective connection of indoor outdoor transmission wiring Troubleshooting Connect the i...

Page 139: ...he high pressure protection switch opens Malfunction Decision Conditions Error is generated when the high pressure switch activation count reaches the number specific to the operation mode Reference O...

Page 140: ...s the high pressure switch have continuity Mount a pressure gauge on the high pressure service port Reset the operation using the remote controller and then restart the operation Rectify defective poi...

Page 141: ...pressure gauge For the pressure sensor voltage measure voltage at the connector and then convert it to pressure according to information on P 243 2 Take the measurement of voltage of the pressure sen...

Page 142: ...Method of Malfunction Detection Abnormality is detected by the pressure value with the low pressure sensor Malfunction Decision Conditions Error is generated when the low pressure is dropped under spe...

Page 143: ...ow pressure service port Reset the operation using the remote controller and then restart the operation Open the stop valve NO Replace the low pressure sensor NO YES Connect the service checker to com...

Page 144: ...UVW line connected between the inverter and compressor and the malfunction is detected when any abnormality is observed in the phase current waveform Malfunction Decision Conditions This malfunction w...

Page 145: ...NO Defect of pressure equalizing Check the refrigerant circuit Check if the start mode is in the high differential pressure not less than 73 psi YES Caution Be sure to turn off the power switch befor...

Page 146: ...e starting 2 The quality of power transistors diode modules can be judged by executing P 213 Power OFF Power ON Replace the inverter PCB Check if the inverter output voltage between 3 phases is within...

Page 147: ...f rotation detected by hole IC during the fan motor operation Malfunction Decision Conditions Overcurrent is detected for inverter PCB A2P or fan inverter PCB A3P System down is caused by 4 times of d...

Page 148: ...to check Check in the monitor mode Check if any foreign substances around the fan Remove the foreign substances YES Fan motor 1 X106A of PCB Fan motor 2 X107A of PCB NO Cut the power supply OFF and w...

Page 149: ...ance value between the power supply wire terminal of fan motor and the motor frame metal is 145 psi and below NO Check fan motor connector power supply wire NO CHECK 5 Refer to P 215 Replace the corre...

Page 150: ...Method of Malfunction Detection Check disconnection of connector To be detected based on continuity existence of coil of electronic expansion valve Malfunction Decision Conditions No current is detec...

Page 151: ...PCB A1P for electronic expansion valve is connected Ensure correct connection NO YES The coil resistance of electronic expansion valve is normal 1 Replace the connecting cable NO Replace the outdoor u...

Page 152: ...ction Abnormality is detected according to the temperature detected by the discharge pipe thermistor Malfunction Decision Conditions When the discharge pipe temperature rises to an abnormally high lev...

Page 153: ...in Check if discharge pipe thermistor property is normal 1 Replace the discharge pipe thermistor R2T NO YES Connect the service checker to compare the temperature of discharge pipe by using service ch...

Page 154: ...stor Misalignment of the heat exchanging deicer thermistor Misalignment of the liquid pipe thermistor Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P 241 Replace...

Page 155: ...hermistor connection Defect of thermistor R1T for outdoor air Defect of outdoor unit PCB A1P Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P 241 Replace the therm...

Page 156: ...harge pipe Defect of outdoor unit PCB A1P Defect of thermistor connection Troubleshooting The alarm indicator is displayed when the fan is being used also Refer to Thermistor Resistance Temperature Ch...

Page 157: ...R3T or R5T for outdoor unit suction pipe Defect of outdoor unit PCB A1P Defect of thermistor connection Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P 241 Replac...

Page 158: ...thermistor R4T for outdoor unit coil Defect of outdoor unit PCB A1P Defect of thermistor connection Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P 241 Replace t...

Page 159: ...e thermistor 1 R7T Faulty outdoor unit PCB Defect of thermistor connection Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P 241 Replace the thermistor R7T Is the r...

Page 160: ...y subcooling heat exchanger gas pipe thermistor R6T Faulty outdoor unit PCB Troubleshooting Refer to Thermistor Resistance Temperature Characteristics table on P 241 Replace the thermistor R6T Is the...

Page 161: ...on Detection Malfunction is detected from the pressure detected by the high pressure sensor Malfunction Decision Conditions When the high pressure sensor is short circuit or open circuit Not less than...

Page 162: ...place the main PCB If the PCB pressure detection normal Make a comparison between the checker pressure data and the voltage characteristics 1 NO Replace the high pressure sensor Are the characteristic...

Page 163: ...unction Detection Malfunction is detected from pressure detected by low pressure sensor Malfunction Decision Conditions When the low pressure sensor is short circuit or open circuit Not less than 257p...

Page 164: ...rmal Make a comparison between the checker pressure data and the voltage characteristics 1 NO Replace the low pressure sensor Are the characteristics of the low pressure sensor normal NO YES Caution B...

Page 165: ...Troubleshooting by Indication on the Remote Controller SiUS34 907 156 Troubleshooting 1 Voltage measurement point 2 Refer to Pressure Sensor Pressure Voltage Characteristics table on P 243...

Page 166: ...ed based on the current value during waveform output before starting compressor Malfunction is detected based on the value from current sensor during synchronous operation when starting the unit Malfu...

Page 167: ...e malfunction results from external causes other than failures e g external noises or thunder Does the power supply normally come back ON YES Replace the main PCB A1P at the same time Check if insulat...

Page 168: ...roller Display L4 Applicable Models RXYMQ36 48PVJU Method of Malfunction Detection Fin temperature is detected by the thermistor of the radiation fin Malfunction Decision Conditions When the temperatu...

Page 169: ...oints Stained radiation fin Airflow obstructed with dirt or foreign matters Damage to fan impellers Too high outdoor temperature YES Replace the main PCB A1P Does the malfunction recur when the power...

Page 170: ...SiUS34 907 Troubleshooting by Indication on the Remote Controller Troubleshooting 161 Main PCB Refer to Thermistor Resistance Temperature Characteristics table on P 241...

Page 171: ...U Method of Malfunction Detection Malfunction is detected from current flowing in the power transistor Malfunction Decision Conditions When an excessive current flows in the power transistor Instantan...

Page 172: ...damaged YES Replace the compressor lead wires Check if the compressor lead wires are normal NO YES Correct the wiring and connection Check if the wiring and connection to the compressor are normal NO...

Page 173: ...JU Method of Malfunction Detection Malfunction is detected by current flowing in the power transistor Malfunction Decision Conditions When overload in the compressor is detected Inverter secondary cur...

Page 174: ...the wiring and connection Check if the wiring and connection to the compressor are normal NO YES Replace the inverter compressor Insulation resistance of the compressor is 100 kW or below YES NO Repla...

Page 175: ...s RXYMQ36 48PVJU Method of Malfunction Detection Detect the failure based on the signal waveform of the compressor Malfunction Decision Conditions Starting the compressor does not complete Supposed Ca...

Page 176: ...ged YES Charge a right amount of refrigerant Check if a right amount of refrigerant is charged NO YES Open the stop valve Check if the stop valve is open NO YES Cancel the inactive state of refrigeran...

Page 177: ...sor refrigerant circuit Replace the main PCB A1P NO Cancel the inactive state of refrigerant Refrigerant is inactive The unit is out of power supply for more than 6 hours NO A YES YES Replace the inve...

Page 178: ...unction Detection Imbalance in supply voltage is detected in PCB Malfunction Decision Conditions When the imbalance in the power supply voltage becomes more than 6V The unit operation is continued wit...

Page 179: ...and inverter 2 Loose or disconnected noise filter Replace the inverter PCB YES Explanation for users In accordance with notification of inspection results accompanying spare parts Give the user a cop...

Page 180: ...on button Supposed Causes Defect of radiator fin temperature sensor Defect of main PCB A1P Faulty inverter compressor Faulty fan motor Troubleshooting Replace the main PCB A1P Is the thermistor resist...

Page 181: ...Troubleshooting by Indication on the Remote Controller SiUS34 907 172 Troubleshooting Main PCB Refer to Thermistor Resistance Temperature Characteristics table on P 241...

Page 182: ...s In cooling mode Low pressure becomes 14 5psi or below In heating mode The degree of superheat of suction gas becomes 36 degrees and over SH Ts1 Te Ts1 Suction pipe temperature detected by thermistor...

Page 183: ...r Check if the property of low pressure sensor is normal 2 Check if the low pressure is 14 5 psi or below 1 Replace the main PCB A1P NO NO YES Caution Be sure to turn off the power switch before conne...

Page 184: ...ain circuit capacitor built in the inverter and power supply voltage Malfunction Decision Conditions When the voltage aforementioned is not less than 780V or not more than 320V or when the current lim...

Page 185: ...ed power supply Not more than 2 Phase voltage of not more than approx 5V NO YES Replace the compressor The insulation resistance is low i e not more than 100kW YES NO Replace the fan motor Replace the...

Page 186: ...the power supply If there is no problem with the power supply replace the main PCB A1P If the PCB replaced is badly damaged compressor is likely to fail To make sure recheck the compressor YES Stop s...

Page 187: ...eck operation is not executed Troubleshooting Press and hold BS4 on the outdoor master PCB for 5 seconds or more or turn ON the local setting mode 2 3 to conduct a check operation Has the check operat...

Page 188: ...of Malfunction Detection Micro computer checks if transmission between indoor and outdoor units is normal Malfunction Decision Conditions When transmission is not carried out normally for a certain a...

Page 189: ...connecting wires are normal YES YES NO Check if all the indoor remote controllers within the same refrigerant circuit display U4 NO YES Check if the voltage between RS terminals on the outdoor unit P...

Page 190: ...1 Check if the indoor outdoor outdoor outdoor connecting wires are normal NO YES Correct the connecting wires Check if the operation is normal with 1 circuit after outdoor outdoor connecting wires are...

Page 191: ...ure according to the corresponding malfunction codes NO YES YES Caution Be sure to turn off the power switch before connecting or disconnecting the connector or parts may be damaged Continued from the...

Page 192: ...llers check the system using a micro computer to ensure that the signal transmission between the indoor unit and the remote controllers main and sub is normal Malfunction Decision Conditions Normal tr...

Page 193: ...ution Be sure to turn off the power switch before connecting or disconnecting the connector or parts may be damaged NO Normal Replace the indoor unit PCB Operation returns to normal when the power is...

Page 194: ...n does not continue for specified period Supposed Causes Malfunction of transmission between main and sub remote controller Connection between sub remote controllers Defect of remote controller PCB Tr...

Page 195: ...ndoor and outdoor unit Malfunction of electronic expansion valve in indoor unit of other system Defect of PCB of indoor unit in other system Improper connection of transmission wiring between indoor a...

Page 196: ...utdoor unit PCB A1P Mismatching of the refrigerant type of indoor and outdoor unit Setting of outdoor PCB was not conducted after replacing with spare PCB Troubleshooting To Diagnosis Flow 1 Excessive...

Page 197: ...to the same refrigerant circuit system should not be more than 64 units The number of indoor units exceeds the standard Check the connection to correct YES NO Replace the main PCB of the outdoor unit...

Page 198: ...rent models Check if the outdoor unit PCB is replaced with PCB for spare parts Check the model of the outdoor unit NO NO YES Caution Be sure to turn off the power switch before connecting or disconnec...

Page 199: ...ress as that of its own on any other indoor unit Malfunction Decision Conditions The malfunction decision is made as soon as the abnormality is detected Supposed Causes Address duplication of centrali...

Page 200: ...Detection Micro computer checks if transmission between indoor unit and centralized remote controller is normal Malfunction Decision Conditions When transmission is not carried out normally for a cer...

Page 201: ...rol group No YES YES YES Has the setting of central control group No been made with the indoor unit on which the UE occurred Can the setting of central control group No be made NO YES Check outdoor un...

Page 202: ...central setting connector been connected NO Correct the connection of the connector YES A Disconnect the transmission wiring of the master unit centralized remote controller and then check the voltage...

Page 203: ...te check operation Defect of indoor unit PCB Stop valve is left in closed position Troubleshooting Note Wiring check operation may not be successful if carried out after the outdoor unit has been off...

Page 204: ...icable Models All indoor unit models RXYMQ36 48PVJU Method of Malfunction Detection Detect an indoor unit with no auto address setting Malfunction Decision Conditions The malfunction decision is made...

Page 205: ...Be sure to turn off the power switch before connecting or disconnecting the connector or parts may be damaged NO YES Is indoor outdoor unit transmission wiring normal After fixing incorrect wiring pu...

Page 206: ...me Supposed Causes Defect of centralized remote controller PCB Defect of intelligent Touch Controller PCB Defect of Schedule timer PCB Troubleshooting Replace the centralized remote controller Caution...

Page 207: ...Method of Malfunction Detection Detect the malfunction according to DIII NET transmission data The system will be automatically reset Malfunction Decision Conditions When no master controller is prese...

Page 208: ...or parts may be damaged NO YES YES NO Have power supplies to every centralized remote controller been turned ON Turn ON the power supply of the centralized remote controller NO NO Replace the intellig...

Page 209: ...Malfunction Detection Detect the malfunction according to DIII NET transmission data Malfunction Decision Conditions When the schedule timer is set to individual use mode another central component is...

Page 210: ...r been connected YES YES YES Not available for combined use of the schedule timer and the interface for LONWORKS Dismount either of them and then reset power supplies of every centralized remote contr...

Page 211: ...chedule timer Method of Malfunction Detection Detect the malfunction according to DIII NET transmission data Malfunction Decision Conditions Two or more units of centralized remote controllers and int...

Page 212: ...tion of master and slave units and then reset the power supplies of every centralized remote controller Was the centralized remote controller connected once and then disconnected or was additional cen...

Page 213: ...del of indoor units Unified ON OFF controller Method of Malfunction Detection Detect the malfunction according to DIII NET transmission data Malfunction Decision Conditions Supposed Causes Malfunction...

Page 214: ...ddress changed YES Correct the wiring Is the transmission wiring with the master controller disconnected or wired incorrectly NO YES NO Turn the power supply of the indoor unit on Is the power supply...

Page 215: ...tralized controller which was connected once shows no response The control ranges are overlapped When multiple master central controllers are present When the schedule timer is set to individual use m...

Page 216: ...ntrol NO Set reset switch to normal Is the reset switch of all optional controllers for centralized control set to normal NO YES YES Correct the wiring Is transmission wiring disconnected or wired inc...

Page 217: ...e power supply for all optional controllers for centralized control simultaneously YES Arrange so that the connector for setting master controller is connected to one controller for centralized contro...

Page 218: ...No is not set for indoor unit Improper control range setting switch Improper wiring of transmission wiring Troubleshooting Set by remote controller the central control address for all indoor units co...

Page 219: ...rol PCB Are the electrical characteristics normal In the connector properly connected Are the thermistor resistance characteristics normal Is the pressure value checked with the Service Checker corres...

Page 220: ...ecker corresponding to the measurement of the pressure sensor Faulty outdoor unit electronic expansion valve Faulty valve coil Faulty valve body Are the coil resistance and insulation normal In heatin...

Page 221: ...otor connector disconnected measure the resistance between each pin then make sure that the resistance is more than the value mentioned in the following table CHECK 3 Measurement point Judgement 1 4 1...

Page 222: ...ment in the resistance value mode in the range of multiplying 1k To use digital tester Measurement is executed in the diode check mode No Point of Measurement Judgement Criteria Remarks No Point of Me...

Page 223: ...SiUS34 907 214 Troubleshooting PCB and Circuit Diagram P3 U V W N3 J1 J2 J3 P1 P1 P2 IGBT X11A U V W L1 L2 L3 X10A DM K2 P3 N3 J1 J2 J3...

Page 224: ...ure 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 o...

Page 225: ...ermistor resistance property is normal Check if the piping temperature connected to the 4 way switch valve is normal Check if the pressure value given by the service checker corresponding to actual me...

Page 226: ...for checking indoor outdoor unit transmission wiring for broken wires for checking the indoor outdoor unit transmission wiring of the Outdoor Unit C for broken wires Turn OFF the power supply to all...

Page 227: ...he intelligent Touch Controller centralized remote controller and the unified ON OFF controller have been set to Provided with the master unit central setting connector at the factory The schedule tim...

Page 228: ...st of Setting of master unit central setting connector CHECK 10 1 2 3 4 Master Slave 1 2 3 4 Pattern 1 00 4 15 Master Slave 5 00 8 15 Master Slave 1 00 4 15 Master Slave 5 00 8 15 Master Slave N CRC M...

Page 229: ...iconductors mounted on the inverter PCB by the use of a multiple tester Items to be prepared h Multiple tester Prepare the digital type of multiple tester with diode check function Preparation h Turn...

Page 230: ...llowing abnormalities are also doubted besides the PCB abnormality h Faulty compressor ground fault ground leakage h Faulty fan motor ground leakage Tester terminal Criterion Remark C U Not less than...

Page 231: ...or Unit 224 2 Wiring Diagrams 227 2 1 Outdoor Unit 227 2 2 Field Wiring 228 2 3 Indoor Unit 229 3 Option List 236 3 1 Option List of Controllers 236 3 2 Option List of Outdoor Unit 237 4 Example of Co...

Page 232: ...SiUS34 907 Piping Diagrams Appendix 223 1 Piping Diagrams 1 1 Outdoor Unit RXYMQ36 48PVJU C 3D65366 S1NPL S1PH S1NPH...

Page 233: ...heating operation 2 Suction air temperature thermistor R1T Used for thermostat control 3 Liquid pipe temperature thermistor R2T Used for gas superheated degree control while in cooling operation or su...

Page 234: ...225 FXZQ Refrigerant pipe connection port diameters FXDQ Refrigerant pipe connection port diameters 4D040157 in Model Gas Liquid FXZQ07 09 12 18MVJU 1 2 1 4 4D043864M in Model Gas Liquid FXDQ07 09 12...

Page 235: ...s SiUS34 907 226 Appendix FXMQ FXLQ FXNQ Refrigerant pipe connection port diameters 4D034245D in Model Gas Liquid FXMQ07 09 12 18PVJU FXLQ12 18MVJU FXNQ12 18MVJU 1 2 1 4 FXMQ24 30PVJU FXLQ24MVJU FXNQ2...

Page 236: ...SiUS34 907 Wiring Diagrams Appendix 227 2 Wiring Diagrams 2 1 Outdoor Unit 2 1 1 Heat Pump RXYMQ36 48PVJU 3D065263...

Page 237: ...Wiring Diagrams SiUS34 907 228 Appendix 2 2 Field Wiring RXYMQ36 48PVJU 3D065370...

Page 238: ...SiUS34 907 Wiring Diagrams Appendix 229 2 3 Indoor Unit FXFQ12M 18M 24M 30M 36MVJU 3D042620C...

Page 239: ...Wiring Diagrams SiUS34 907 230 Appendix FXZQ07M 09M 12M 18MVJU 3D059263...

Page 240: ...SiUS34 907 Wiring Diagrams Appendix 231 FXDQ07M 09M 12M 18M 24MVJU 3D050501A...

Page 241: ...Wiring Diagrams SiUS34 907 232 Appendix FXMQ07P 09P 12P 18P 24P 30P 36P 48PVJU 3D065984A...

Page 242: ...SiUS34 907 Wiring Diagrams Appendix 233 FXHQ12M 24M 36MVJU 3D048116A...

Page 243: ...Wiring Diagrams SiUS34 907 234 Appendix FXAQ07M 09M 12M 18M 24MVJU 3D046039D...

Page 244: ...SiUS34 907 Wiring Diagrams Appendix 235 FXLQ12M 18M 24MVJU FXNQ12M 18M 24MVJU 3D045644A...

Page 245: ...tion intelligent Touch Controller Basic Hardware intelligent Touch Controller DCS601C71 Air Conditioning management system that can be controlled by a compact all in one unit Option Software Web DCS00...

Page 246: ...ssories RXYMQ36MVJU RXM48MVJU Cool Heat Selector KRC19 26A Fixing box KJB111A Distributive Piping REFNET header KHRP26M22H KHRP26M33H MAX 4 branch MAX 8 branch REFNET joint KHRP26M22T Central drain pl...

Page 247: ...Option List SiUS34 907 238 Appendix...

Page 248: ...g p 130ft Pipe length from first refrigerant branch kit either REFNET joint or REFNET header to indoor unit 130ft Example unit 8 i 130ft Example unit 6 b h 130ft unit 8 i k 130ft Refrigerant branch ki...

Page 249: ...Example of Connection 240...

Page 250: ...8 44 6 7 46 26 134 6 57 5 95 46 4 8 44 05 136 4 58 5 74 48 2 9 41 95 138 2 59 5 14 50 0 10 39 96 140 0 60 4 96 51 8 11 38 08 141 8 61 4 79 53 6 12 36 30 143 6 62 4 62 55 4 13 34 62 145 4 63 4 46 57 2...

Page 251: ...2 249 8 121 7 26 71 6 22 228 05 161 6 72 32 78 251 6 122 7 06 73 4 23 218 24 163 4 73 31 69 253 4 123 6 87 75 2 24 208 90 165 2 74 30 63 255 2 124 6 69 77 0 25 200 00 167 0 75 29 61 257 0 125 6 51 78...

Page 252: ...r High Pressure PH Low Pressure PL VH Output Voltage High Side VDC VL Output Voltage Low Side VDC PH 1 38VH 0 69 PL 0 57VL 0 28 PH High pressure MPa PL Low pressure MPa Output Voltage VH VL Detected P...

Page 253: ...907 244 Precautions for New Refrigerant R 410A Part 9 Precautions for New Refrigerant R 410A 1 Precautions for New Refrigerant R 410A 245 1 1 Outline 245 1 2 Refrigerant Cylinders 247 1 3 Service Too...

Page 254: ...erant 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 1...

Page 255: ...56 19 34 21 27 23 34 25 56 27 95 30 51 33 26 36 19 39 31 42 64 46 19 49 96 53 97 58 22 62 72 67 48 72 51 77 83 83 44 89 36 95 59 102 14 109 03 116 26 123 86 131 82 140 16 148 90 158 04 167 60 177 59...

Page 256: ...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 rol...

Page 257: ...s for R 410A and R 407C Charging cylinder Weighting instrument used for HFCs Gas detector The same tool can be used for HFCs Vacuum pump pump with reverse flow preventive function To use existing pump...

Page 258: ...pipe extension margin of 0 to 0 02in was provided for flaring For R 410A air conditioners perform pipe flaring with a pipe extension margin of 0 04 to 0 06in For clutch type only Conventional tool wi...

Page 259: ...imum degree of vacuum 50 l min 50Hz Select a vacuum pump which is able to keep the vacuum degree 60 l min 60Hz of the system in excess of 14 6 psi 5 torr 755 mmHg Suction port UNF7 16 20 1 4 Flare UNF...

Page 260: ...ers detected chlorine Since HFCs do not contain chlorine new tester detects hydrogen 5 Refrigerant oil Air cCompal Specifications Contains synthetic oil therefore it can be used for piping work of eve...

Page 261: ...pressure 737 psi 51 8 kg cm2 Rupture pressure 3684 psi 259 kg cm2 Available with and without hand operate valve that prevents refrigerant from outflow Differences Pressure proof hose Change in service...

Page 262: ...heck liquid refrigerant charging A manifold with separate ports for HFCs and previous refrigerants is equipped as standard accessories Differences Measurement is based on weight to prevent change of m...

Page 263: ...Precautions for New Refrigerant R 410A SiUS34 907 254 Precautions for New Refrigerant R 410A...

Page 264: ...e auspices of the American Society of Heating Refrigeratin and Air Conditioning Engineers ASHRAE Daikin Industries Ltd s products are manufactured for export to numerous countries throughout the world...

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