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GREE ELECTRIC GMV(L)-Pd100W/NaB-K, Service Manual

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GREE ELECTRIC GMV(L)-Pd100W/NaB-K Service Manual Download Page 204

DC INVERTER MULTI VRF                                                                                                                        MAINTENANCE 

 

201

3 Power Distribution 

3.1 Principle of Power Distribution 

 

(The coarse line refer to control line and the fine line refers to control line) 

 
 
 
 
 
 

Air switch

 

Filter 

board

 

Compres

sor

 

Control  signals  for  4-way  valve,  air 
bypass and electric heater

 

Indoor 

unit

 

Mainboard

 

Control  signals  for  temperature  sensor, 
electronic  expansion  valve  and  HV/LV 
switch

 

Summary of Contents for GMV(L)-Pd100W/NaB-K

Page 1: ...1 DC INVERTER MULTI VRF Service Manual GREE ELECTRIC APPLIANCES INC OF ZHUHAI ...

Page 2: ...2 6 1 Function 62 6 2 Operation View 62 6 3 Display View 64 6 4 Connection Between Controller and Unit 65 6 5 Case Study 错误 错误 错误 错误 未定义书签 未定义书签 未定义书签 未定义书签 7 MONITORING SOFTWARE 79 7 1 Function 79 7 2 Connection Between the Computer and the Unit 79 7 3 Hardware 81 INSTALLATION 错误 错误 错误 错误 未定义书签 未定义书签 未定义书签 未定义书签 1 PRECAUTIONS FOR INSTALLATION_ 错误 错误 错误 错误 未定义书签 未定义书签 未定义书签 未定义书签 1 1 Precautions f...

Page 3: ...错误 错误 错误 未定义书签 未定义书签 未定义书签 未定义书签 8 3Installation of Drainage Pipe for Different Types of Indoor Unit 错误 错误 错误 错误 未定义书签 未定义书签 未定义书签 未定义书签 8 4 Test for Condensate Pipe 错误 错误 错误 错误 未定义书签 未定义书签 未定义书签 未定义书签 8 5 Requirements of Heat Insulation 149 9 ELECTRICAL INSTALLATION 150 MAINTENANCE 157 1 LIST OF UNIT ERRORS 157 2 FLOW CHART OF TROUBLESHOOTING 161 3 POWER DISTRIBUTION 201 4 DISASSEMBLY AND ASSEMBL...

Page 4: ...GREE COMMERCIAL AIR CONDITIONER DC INVERTER MULTI VRF 1 PRODUCT ...

Page 5: ... 240V 50Hz Note 1Ton 12000Btu h 3 517kW Notes a Cooling only unit GMVL type has no items on heating b Noise was tested in semi silenced room so the actual noise value will be a little higher for change of ambient c The charge amount of R410A in the list is only the sealed amount when outdoor unit outgoing When installing calculate the additional charge amount according to actual length of pipe and...

Page 6: ...P Na K 15354 GMVL R40P Na K 13649 GMV R45P Na K 17060 GMVL R45P Na K 15355 GMV R50P Na K 19790 GMVL R50P Na K 17061 GMV R56P Na K 21496 GMVL R56P Na K 19108 GMV R63P Na K 23884 GMVL R63P Na K 21496 GMV R71P Na K 27296 GMVL R71P Na K 24226 GMV R80P Na K 30026 GMVL R80P Na K 27297 GMV R90P Na K 34120 GMVL R90P Na K 30709 GMV R100P Na K 37532 GMVL R100P Na K 34121 GMV R112P Na K 42650 GMVL R112P Na K...

Page 7: ...8P NaB K 10918 GMVL R28P NaB K 9554 GMV R36P NaB K 13648 GMVL R36P NaB K 12284 GMV R45P NaB K 17060 GMVL R45P NaB K 15355 GMV R56P NaB K 21496 GMVL R56P NaB K 19108 GMV R71P NaB K 27296 GMVL R71P NaB K 24226 GMV R90P NaB K 34120 GMVL R90P NaB K 30709 GMV R112P NaB K 42650 GMVL R112P NaB K 38216 GMV R140P NaB K 51180 GMVL R140P NaB K 47770 R410A 220 240V 50Hz Conversion Formula Btu h kW 3412 ...

Page 8: ... R28T Na K 10900 GMVL R28T Na K 9550 GMV R36T Na K 13650 GMVL R36T Na K 12280 GMV R45T Na K 17060 GMVL R45T Na K 15360 GMV R50T Na K 19790 GMVL R50T Na K 17060 GMV R56T Na K 21500 GMVL R56T Na K 19100 GMV R63T Na K 23880 GMVL R63T Na K 21500 GMV R71T Na K 27300 GMVL R71T Na K 24230 GMV R80T Na K 30030 GMVL R80T Na K 27300 GMV R90T Na K 34120 GMVL R90T Na K 30700 GMV R112T Na K 42650 GMVL R112T Na ...

Page 9: ...0919 GMVL R28G NaB K 9554 GMV R36G NaB K 13649 GMVL R36G NaB K 12284 GMV R45G NaB K 17061 GMVL R45G NaB K 15355 GMV R50G NaB K 19790 GMVL R50G NaB K 17061 GMV R56G NaB K 21496 GMVL R56G NaB K 19108 GMV R22G NaC K 8530 GMVL R22G NaC K 7507 GMV R28G NaC K 10919 GMVL R28G NaC K 9554 GMV R36G NaC K 13649 GMVL R36G NaC K 12284 GMV R45G NaC K 17061 GMVL R45G NaC K 15355 GMV R71G Na K 27297 GMVL R71G Na ...

Page 10: ... R90Zd Na K 34121 GMVL R90Zd Na K 30709 GMV R112Zd Na K 42652 GMVL R112Zd Na K 38216 GMV R125Zd Na K 46064 GMVL R125Zd Na K 42652 R410A 220 240V 50Hz Conversion Formula Btu h kW 3412 Notes a Cooling only unit GMVL type has no items on heating b Noise was tested in semi silenced room so the actual noise value will be a little higher for change of ambient c Nominal capacities are based on the follow...

Page 11: ...f indoor unit GMV L R 36 P Na B 1 2 3 4 5 6 7 8 9 NO Description Options 1 Code for type GMV Gree Multi Variable 2 Code for weather Default T1 T2 T2 weather T3 T3 weather 3 Code for model L Cooling Only Default Heat pump 4 Code for function R R R series 5 Nominal cooling capacity 36 represents 3 6kW Btu h kW 3412 6 Code for unit type P Duct type T Cassette type G Wall mounted Zd Floor ceiling 7 Re...

Page 12: ...ortable Air Conditioning Timer Selector Fresh Return air inlet Directly from The Unit Drain Pump Long Life Filter Ultra Long life Filter Option Mold Resistant Treatment for Filter Filter Sign Mold Resistant Drain Pan Emergency Operation For Easy Construction and Maintenance Self Diagnoses Function Set Back Time Clock Double Remote Control Group Control By 1 Remote Controller Control By External Co...

Page 13: ...verter dual rotor type compressor 1 Moisture protection IP 4 IP 4 Climate Type T1 T1 mm φ15 9 φ15 9 Gas Pipe Inch 5 8 5 8 mm φ9 52 φ9 52 Liquid Pipe Inch 3 8 3 8 Connection Method Flare Connection Flare Connection Connection Pipes Max NO of Indoor Unit 5 6 Power input kW 0 136 0 136 m3 h 6000 6000 Air Flow Rate CFM 3538 3538 Fan Step 3 3 Recommended Power Lines mm2 Number 6 0 3 6 0 3 Circuit break...

Page 14: ...onnection Pipes Max NO of Indoor Unit 7 8 Power input kW 0 136 0 184 m3 h 6000 6800 Air Flow Rate CFM 3538 4010 Fan Step 3 3 Recommended Power Lines mm2 Number 10 0 3 10 0 3 Circuit breaker A 40 40 Dimensions of Installation mm 1650 590 1700 1650 590 1700 Width mm 950 950 Depth mm 340 340 Unit Dimensions Height mm 1250 1250 Width mm 1110 1110 Depth mm 450 450 Dimensions of Package Height mm 1280 1...

Page 15: ... 35 φ6 35 φ6 35 Liquid Pipe inch 1 4 1 4 1 4 Connecting Pipes Connection Method Flare Connection Flare Connection Flare Connection Drain Pipes External Dia Thickness mm φ20 1 5 φ20 1 5 φ20 1 5 Unit Dimensions W D H mm 875 680 220 875 680 220 875 680 220 Package Dimensions W D H mm 1012 708 275 1012 708 275 1012 708 275 Weight Net Gross kg 27 31 27 31 27 31 Notes Refer to the product nameplate for ...

Page 16: ...id Pipe inch 1 4 1 4 1 4 Connecting Pipes Connection Method Flare Connection Flare Connection Flare Connection Drain Pipes External Dia Thickness mm φ20 1 5 φ20 1 5 φ30 1 5 Unit Dimensions W D H mm 875 680 220 875 680 220 980 736 266 Package Dimensions W D H mm 1012 708 275 1012 708 275 1068 766 320 Weight Net Gross kg 27 31 27 31 36 39 Notes Refer to the product nameplate for parameters and speci...

Page 17: ...uid Pipe inch 1 4 1 4 3 8 Connecting Pipes Connection Method Flare Connection Flare Connection Flare Connection Drain Pipes External Dia Thickness mm φ30 1 5 φ30 1 5 φ30 1 5 Unit Dimensions W D H mm 980 736 266 980 736 266 1112 756 300 Package Dimensions W D H mm 1068 766 320 1068 766 320 1245 785 360 Weight Net Gross kg 36 39 36 39 55 59 Notes Refer to the product nameplate for parameters and spe...

Page 18: ...quid Pipe inch 3 8 3 8 3 8 Connecting Pipes Connection Method Flare Connection Flare Connection Flare Connection Drain Pipes External Dia Thickness mm φ30 1 5 φ30 1 5 φ30 1 5 Unit Dimensions W D H mm 1112 756 300 1112 756 300 1112 756 300 Package Dimensions W D H mm 1245 785 360 1245 785 360 1245 785 360 Weight Net Gross kg 55 59 55 59 55 59 Notes Refer to the product nameplate for parameters and ...

Page 19: ... 52 Liquid Pipe inch 3 8 3 8 3 8 Connecting Pipes Connection Method Flare Connection Flare Connection Flare Connection Drain Pipes External Dia Thickness mm φ30 1 5 φ30 1 5 φ30 1 5 Unit Dimensions W D H mm 1385 736 300 1385 736 300 1385 736 300 Package Dimensions W D H mm 1514 795 360 1514 795 360 1514 795 360 Weight Net Gross kg 75 79 75 79 75 79 Notes Refer to the product nameplate for parameter...

Page 20: ...h 3 8 3 8 Connecting Pipes Connection Method Flare Connection Flare Connection Drain Pipes External Dia Thickness mm φ30 1 5 φ30 1 5 Unit Dimensions W D H mm 1385 736 300 1385 736 300 Package Dimensions W D H mm 1514 795 360 1514 795 360 Weight Net Gross kg 75 79 75 79 Notes Refer to the product nameplate for parameters and specification of the unit The model with GMVL code is cooling only unit wh...

Page 21: ...1 4 1 4 Connecting Pipes Connection Method Flare Connection Flare Connection Drain Pipes External Dia Thickness mm φ20 1 5 φ20 1 5 Unit Dimensions W D H mm 875 680 260 875 680 260 Package Dimensions W D H mm 1012 780 315 1012 780 315 Weight Net Gross kg 27 31 27 31 Notes Refer to the product nameplate for parameters and specification of the unit The model with GMVL code is cooling only unit while ...

Page 22: ...5 Liquid Pipe inch 1 4 1 4 1 4 Connecting Pipes Connection Method Flare Connection Flare Connection Flare Connection Drain Pipes External Dia Thickness mm φ20 1 5 φ20 1 5 Φ30 1 5 Unit Dimensions W D H mm 875 680 260 875 680 260 980 736 266 Package Dimensions W D H mm 1012 780 315 1012 780 315 1068 766 320 Weight Net Gross kg 27 31 27 31 34 37 Notes Refer to the product nameplate for parameters and...

Page 23: ...52 Liquid Pipe inch 3 8 3 8 3 8 Connecting Pipes Connection Method Flare Connection Flare Connection Flare Connection Drain Pipes External Dia Thickness mm Φ30 1 5 Φ30 1 5 Φ30 1 5 Unit Dimensions W D H mm 1112 756 300 1112 756 300 1425 756 300 Package Dimensions W D H mm 1245 785 360 1245 785 360 1514 785 360 Weight Net Gross kg 49 56 49 56 62 71 Notes Refer to the product nameplate for parameters...

Page 24: ...nch 3 8 3 8 Connecting Pipes Connection Method Flare Connection Flare Connection Drain Pipes External Dia Thickness mm Φ30 1 5 Φ30 1 5 Unit Dimensions W D H mm 1425 756 300 1463 756 300 Package Dimensions W D H mm 1514 785 360 1555 810 345 Weight Net Gross kg 62 71 63 5 73 Notes Refer to the product nameplate for parameters and specification of the unit The model with GMVL code is cooling only uni...

Page 25: ...2 mm Φ6 35 Φ6 35 Liquid Pipe inch 1 4 1 4 Connecting Pipes Connection Method Flare Connection Flare Connection Drain Pipes External Dia Thickness mm Φ30 1 5 Unit Dimensions W D H mm Main body 570 570 230 Panel 650 650 50 Package Dimensions W D H mm Main body 848 728 310 Panel 730 670 102 Net Weight Main body Panel kg 20 5 Gross Weight Main body Panel kg 27 10 Notes Refer to the product nameplate f...

Page 26: ... 4 Connecting Pipes Connection Method Flare Connection Flare Connection Flare Connection Drain Pipes External Dia Thickness mm Φ30 1 5 Φ30 1 5 Φ30 1 5 Unit Dimensions W D H mm Main body 840 840 190 Panel 950 950 60 Package Dimensions W D H mm Main body 960 960 257 Panel 1040 1025 115 Net Weight Main body Panel kg 25 6 5 Gross Weight Main body Panel kg 33 10 Notes Refer to the product nameplate for...

Page 27: ...onnection Flare Connection Flare Connection Drain Pipes External Dia Thickness mm Φ30 1 5 Φ30 1 5 Φ30 1 5 Unit Dimensions W D H mm Main body 840 840 190 Panel 950 950 60 Main body 840 840 240 Panel 950 950 60 Package Dimensions W D H mm Main body 960 960 257 Panel 1040 1025 115 Main body 960 960 310 Panel 1040 1025 115 Net Weight Main body Panel kg 25 6 5 30 6 5 Gross Weight Main body Panel kg 33 ...

Page 28: ...Connection Flare Connection Flare Connection Drain Pipes External Dia Thickness mm Φ30 1 5 Φ30 1 5 Φ30 1 5 Unit Dimensions W D H mm Main body 840 840 240 Panel 950 950 60 Main body 840 840 320 Panel 950 950 60 Package Dimensions W D H mm Main body 960 960 310 Panel 1040 1025 115 Main body 960 960 394 Panel 1040 1025 115 Net Weight Main body Panel kg 30 6 5 38 6 5 Gross Weight Main body Panel kg 38...

Page 29: ...Method Flare Connection Flare Connection Drain Pipes External Dia Thickness mm Φ30 1 5 Φ30 1 5 Unit Dimensions W D H mm Main body 840 840 320 Panel 950 950 60 Package Dimensions W D H mm Main body 960 960 394 Panel 1040 1025 115 Net Weight Main body Panel kg 38 6 5 Gross Weight Main body Panel kg 46 10 Notes Refer to the product nameplate for parameters and specification of the unit The model with...

Page 30: ...Method Flare Connection Flare Connection Drain Pipes External Dia Thickness mm Φ30 1 5 Φ30 1 5 Unit Dimensions W D H mm Main body 840 840 320 Panel 950 950 60 Package Dimensions W D H mm Main body 960 960 394 Panel 1040 1025 115 Net Weight Main body Panel kg 38 6 5 Gross Weight Main body Panel kg 46 10 Notes Refer to the product nameplate for parameters and specification of the unit The model with...

Page 31: ...5 Φ6 35 Liquid Pipe inch 1 4 1 4 1 4 Connecting Pipes Connection Method Flare Connection Flare Connection Flare Connection Drain Pipes External Dia Thickness mm Φ20 1 5 Φ20 1 5 Φ20 1 5 Unit Dimensions W D H mm 830 189 285 830 189 285 830 189 285 Package Dimensions W D H mm 995 394 268 995 394 268 995 394 268 Weight Net Gross kg 8 14 3 8 14 3 11 15 8 Notes Refer to the product nameplate for paramet...

Page 32: ...pe inch 1 4 1 4 3 8 Connecting Pipes Connection Method Flare Connection Flare Connection Flare Connection Drain Pipes External Dia Thickness mm Φ20 1 5 Φ30 1 5 Φ30 1 5 Unit Dimensions W D H mm 830 189 285 1020 228 310 1020 228 310 Package Dimensions W D H mm 1006 385 265 1178 325 390 1178 325 390 Weight Net Gross kg 11 15 8 15 5 20 5 15 5 20 5 Notes Refer to the product nameplate for parameters an...

Page 33: ...d Pipe inch 1 4 1 4 1 4 Connecting Pipes Connection Method Flare Connection Flare Connection Flare Connection Drain Pipes External Dia Thickness mm φ20 1 5 φ20 1 5 φ20 1 5 Unit Dimensions W D H mm 770 190 250 770 190 250 830 189 285 Package Dimensions W D H mm 955 330 272 955 272 330 1006 395 295 Weight Net Gross kg 8 14 3 8 14 3 11 15 8 Notes Refer to the product nameplate for parameters and spec...

Page 34: ... Pipe inch 1 4 3 8 3 8 Connecting Pipes Connection Method Flare Connection Flare Connection Flare Connection Drain Pipes External Dia Thickness mm Φ30 1 5 φ30 1 5 φ30 1 5 Unit Dimensions W D H mm 830 189 285 1178 227 326 1178 227 326 Package Dimensions W D H mm 1006 395 295 1365 417 333 1365 417 333 Weight Net Gross kg 11 15 8 17 5 23 17 5 23 Notes Refer to the product nameplate for parameters and...

Page 35: ...Liquid Pipe inch 1 4 1 4 1 4 Connecting Pipes Connection Method Flare Connection Flare Connection Flare Connection Drain Pipes External Dia Thickness mm Φ17 1 75 Φ17 1 75 Φ17 1 75 Unit Dimensions W D H mm 840 238 695 840 238 695 840 238 695 Package Dimensions W D H mm 1035 295 805 1035 295 805 1035 295 805 Weight Net Gross kg 28 37 28 37 28 37 Notes Refer to the product nameplate for parameters an...

Page 36: ...onnecting Pipes Connection Method Flare Connection Flare Connection Drain Pipes External Dia Thickness mm Φ17 1 75 Φ17 1 75 Unit Dimensions W D H mm 1300 188 600 1590 238 695 Package Dimensions W D H mm 1514 248 724 1714 330 830 Weight Net Gross kg 34 38 44 53 Notes Refer to the product nameplate for parameters and specification of the unit The model with GMVL code is cooling only unit while the m...

Page 37: ...nection Flare Connection Drain Pipes External Dia Thickness mm Φ17 1 75 Φ17 1 75 Unit Dimensions W D H mm 1590 238 695 1590 238 695 Package Dimensions W D H mm 1714 330 830 1714 330 830 Weight Net Gross kg 44 53 44 53 Notes Refer to the product nameplate for parameters and specification of the unit The model with GMVL code is cooling only unit while the model with GMV code is heat pump unit the co...

Page 38: ...trifugal Fan Electronic Expansion Valve Heat Exchanger with Centrifugal Fan Electronic Expansion Valve extra condenser Heat Exchanger with Axial Flow Fan M Electromagnetic valve Capillary Oil separator Outdoor side Capillary High pressure switch Compressor Stop valve Indoor side Accumulator Receiver ...

Page 39: ...ve Heat exchanger with centrifugal fan Indoor side Stop valve cooling heating Compressor 1 way valve Outdoor side Oil separator Capillary Electricmagnetic valve 4 way valve Filter M Extra condenser Heat exchanger with axial flow fan Heat exchanger with centrifugal fan Electronic expansion valve Accumulator Receiver ...

Page 40: ...GREE COMMERCIAL AIR CONDITIONER DC INVERTER MULTI VRF 37 CONTROL ...

Page 41: ...DC INVERTER MULTI VRF CONTROL 38 CONTROL 1 OPERATION FLOWCHART ...

Page 42: ...ectronic Expansion Valve Capacity Control A There Is Not There Is Yes Yes No No Go To The Previous Page Electronic Expansion Valve Close Fan Motor Stop Temperature Adjustment In The Process Of Preventing Restart Operation 3 Minutes Guide Louver Cooling Operation Guide Louvers Swing ...

Page 43: ...DC INVERTER MULTI VRF CONTROL 40 1 2 Heating Operation ...

Page 44: ...e iOFF q Rated capacity of indoor unit in OFF state i A Setting temperature correction of indoor and outdoor ambient temperature i B Capacity compensation under heating when indoor unit in OFF state 2 Compressor Start Control The shortest operating time of the compressor is 6 minutes But when the switching off signal or the protection signal is received the compressor must stop even if the operati...

Page 45: ... it running for 3min at 60Hz and then switch to the target frequency The dwell time is separately 5min and 5 min when the frequency passes 75 Hz and 90 Hz If high pressure frequency reducing and exhausting frequency reducing happens during the process you should quit the initial action and deal with according to their separate frequency reducing ...

Page 46: ...own one grade not including stopping windshield Remain Turn up one grade For ultra high fan speed you couldn t turn up the grade anymore Heating Mode The fan should run at high fan speed for 35s before the compressor is started meanwhile it is not allowed to turn up to ultra high fan speed within the earlier 3 minutes after the compressor started but it could be switched to low speed and stopping ...

Page 47: ... 2 hours Defrosting Stop Conditions Outdoor coil pipe temperature is higher than 15 or the defrosting is running for 10 minutes continuously Defrosting Movements The defrosting is made by switching four way valve to cooling mode The action time for unit defrosting operation is shown as the following figure Timing diagram of the defrosting process Intermediate sensor temperature ...

Page 48: ...ty requirement is not 0 you should open the electronic expansion valve 膨胀阀OFF 膨胀阀ON 室内设定温度 1 1 室内环境温度 If all the indoor units temperatures of a unit are up to temperature spot then the capacity needs is o the outdoor unit will stop the compressor and all the indoor electromagnetic expansion valve will be closed Indoor Fan Action When the indoor unit is opened and the fan is not set at automatic fa...

Page 49: ...Please refer to cooling operation 室内设定温度 1 1 室内环境温度 低风档 If the indoor fan is closed at first the fan will be forced to run at high fan for 8s after start up then changed to setting speed 2 Heating Operation Heating Capacity Outdoor unit will determine the compressor capacity output according to the capacity requirements of indoor unit Indoor unit will determine the opening of indoor electronic exp...

Page 50: ...the following conditions If the indoor unit evaporator temperature t evaporator has reached the valve value T v evaporator then the indoor fan will run at the set fan speed after running 8 seconds at high speed If the indoor unit evaporator temperature t evaporator has still not reached the valve value T v evaporator after 1 min the indoor fan will be forced to run at high speed for 3s and then ru...

Page 51: ...sidual heat s Model Stop Reaching the temperature point Entering into the defrosting Malfunction stop Duct Type Series 100 60 100 60 60 Wall Mounting Type Series 50 10 50 10 10 Cassette Type Series 60 Low wind non stop 20 20 Special case For the indoor units of cassette series it will run at low fan speed when it reaches the temperature point and do not need to stop the fan 3 Compensation for Heat...

Page 52: ...ng function will be started and the swing louver begins to swing from current position When the wired controller or remote controller sends a stopping swing signal the automatic swing function will be stopped and the swing louver stops at current position Others When the indoor unit receives the shutdown signal detecting the fault signal and defrosting signal unless the auxiliary electric heating ...

Page 53: ...g to keep suitable superheating degree the unit will control the jaw opening of indoor electronic expansion valve according to the difference between entry temperature and setting superheating value of indoor unit evaporator It will be detected every 40 seconds This process will stop when powering off stop after reaching temperature point and malfunction Controlling of supercooling degree in heati...

Page 54: ... address of indoor unit at the same units is not allowed to repeat The address of the same indoor unit should conform to the address of remote controller The address setting of indoor unit and remote controller should use address DIP switch which is set on the mainboard of indoor unit and remote control and has the sign of address The address which DIP switch refers to is listed as follows Dial up...

Page 55: ...t temperature sensor Only for ducted units A Selecting of mainboard ambient temperature sensor TAmbient and receiver head temperature sensor TAmbient1 B This function will be effective when mainboard controlled without wired controller Ambient temperature sensor on mainboard is selected Ambient temperature sensor on receiver head is selected Functional description of master slave indoor unit This ...

Page 56: ... the button to turn on the unit Press the button once again to turn off the unit and cancal the timer SWING FAN AUTO FAN MODE TIMER ONOFF AUTOFAN NOTE The cooling only units have no mode Press the button to change the mode according to the following order MODE button Set temp 16 c 30 c Set temp 16 c 30 c Set temp 16 c 30 c Set temp 16 c 30 c Set temp increases 1 c by pressing and decreases 1 c by ...

Page 57: ... by pressing button once The indoor temp can be set in the range of 16 30 Press the Timer OFF TIMER ON button at operating stopping to set the off on time Press Timer OFF TIMER ON once to increase 0 5 hour for the set time The Max value of setting time could be 24 hours when repressed it the setting time will be canceled Operation procedure Normal procedure 1 Press ON OFF button after connected wi...

Page 58: ... the batteries is about one year 3 Don t confuse the new and worn or different types of batteries 4 Remove batteries when the remote control is not in use for a longtime to avoid mal function caused by liquid leakage 5 The remote control should be placed about 1m or more from the TV set or any other electric appliances 6 The remote control should be used in the receivable range the reception range...

Page 59: ...ay 10 Timer button 3 Ambient temp display Malfunction display 11 Sleep button 4 Fan control display automatic high media low 12 Swing display 5 Set Temp display 13 Fan control button 6 Defrosting display 14 Temp Timer decrease button 7 Timer display 15 Temp Timer increase button 8 Signal receptor 16 Mode button 4 2 Dimension Fig 4 2 1 Outline Dimension Fig 4 2 2 Installation Dimension 54 21 5 85 6...

Page 60: ...h power on 2 Get one end of the 4 core communication cable and put it through the rectangular hole on the base board on the wired controller 3 Hold the base board of controller on the wall and then fix it to the wall with M4x25 screw 4 Plug the 4 core communication cable into the slot on the wired controller and then fix the controller panel with base board together SN 1 2 3 4 Name Casing base ins...

Page 61: ...lected by the personnel who performance the installation with the requirements of users Please refer to Project Debugging Setting section for the details Note If the controller is set to be region wired controller the wired controller of the selected indoor unit must be removed The region controller can be matched with long distance monitor As a region monitoring controller its control is subject ...

Page 62: ...ons simultaneously to start stop the lock of operation to buttons of wired controller for selected indoor units 2MODE and 6 TIMER Shield mode Under single central control press MODE and TIMER simultaneously to start stop the shield of operation to MODE button of wired controller for selected indoor unit 4 and 6 TIMER Shielding Temp Under single central control press and TIMER simultaneously to sta...

Page 63: ...of online indoor units are displayed and No of selected indoor unit will blink Under single control state only No of selected indoor unit is displayed Under centralized state No of all online indoor units are displayed 9 Room temp ROOMTEMP is displayed for no malfunction but isn t for malfunction 10 Shield Centralized controller A Under inquiry state SHIELD will be displayed when selected indoor u...

Page 64: ...in a region Following part is the same to it 3 No signal control function for region wired controller and SINGLE won t be displayed either 5 4 Connection between Controller and Unit Insert the 4 core twisted pair line to wired controller if which is with the indoor unit into region controller wiring terminal CN1 or CN2 and then connect the other wiring terminal CN2 or CN1 with the main board of in...

Page 65: ...rol to all indoor units It can organize several indoor units into groups as you desired and conduct unified control Group select control Error contents are shown by codes Corresponding communication module numbers of the indoor units with error contents would blink for rapid inspection and repair There is sound warning for a few errors Timer function Every indoor unit can set Timer On Off time by ...

Page 66: ...e press this button after setting state of indoor unit control to indoor unit would be conducted by corresponding control mode 10 GROUP Press button under checking state to begin information check and set of grouped indoor unit grouped information is for select control 11 TIME Set system time 12 SYSTEM TEST Begin setting of central control run mode it is not recommended to be used by users 13 INDO...

Page 67: ...igh Medium Low and Auto speed of indoor unit 6 Check Under group control mode it is displayed when checking grouping information Under address setting mode it is displayed when checking hard address 7 Operation monitoring and controlling monitoring When central control works in normal operation monitoring displays when control signal is transmitted operation monitoring and controlling is displayed...

Page 68: ...he addresses of controlling communication modules displayed by central control hereinafter called soft addresses and the addresses of communication modules themselves hereinafter called hard addresses are value from 0 254 thus there is address matching problem between central control and controlled communication module In order to solve this problem address mapping setting is required to be conduc...

Page 69: ...t This office building has been installed with 2 sets of GMV units as shown in the table below Name Models Quantity of required communicati on modules pinboard Quantity of indoor units Corresponding rooms of indoor units Room Address of communication module Address of indoor unit Office 1 1 2 Office 2 3 4 Office 3 5 6 Office 4 7 8 Office 5 9 10 Unit1 GMV L Pd160 W NaB K 1 0 12 Office 6 01 11 12 Ro...

Page 70: ...DC INVERTER MULTI VRF CONTROL 67 2 Frame Diagram of System Net 上 WC ...

Page 71: ...onnected with up to 32 indoor units by two pinboards either of which can connect with up to 16 indoor units What s more the quantity of communication modules used is the same as that of pinboards In this project pinboard 1 is connected with the communication module with address of 02 and indoor units address 01 04 of office 7 8 corresponding with independent communication Net 2 Pinboard 2 is conne...

Page 72: ...e users the whole floor is divided into 3 monitoring regions south area office 1 6 north area assembly room1 2 and office 7 8 and monitor room B Confirmation of quantity of systems Name Qty Installation Location Notes Communication modules 3 Centralized control cabinet The quantity required for the pinboards is the same as communication modules If no pinboard only one module is needed So there sho...

Page 73: ...lized controller As shown in the following figure D Connection between communication module and indoor and outdoor units According to the net diagram connect the communication line between indoor unit and outdoor unit Then cut off the communication line between the mainboards of indoor unit and outdoor unit as shown below Align the cutting terminals and terminals of communication line to COM1 as s...

Page 74: ...by yellow to yellow and brown to brown as shown below And then weld the terminals of communication line to COM1 with the welding spots in the above figure together by yellow wire to brown wire as shown below At last wrap the welding spots with insulating tape and test conduction performance of the three communication lines as shown below ...

Page 75: ...yellow to brown wire of communication line to COM1 The crystal heads are as follow Insert the three crystal heads into the triple adopter and test conduction performance of them as shown below E Connection of Communication Modules and Centralized Controller Connection of COM1 of communication module which has 3 COM in total has been introduced as the above COM2 can connect with another communicati...

Page 76: ... module Method 1 The address of each communication module has been fixed in the factory and marked on the label at the back of it It is unnecessary for users to set anything In addition the 3 digital DIP can not be dialed to OFF completely as shown below Method 2 Manual setting of address as operated the following 1 Dial the digital switch at the back of communication module to OFF completely as b...

Page 77: ...igital DIP is as below Set DIP for address according to the following table Address from 0 to 31 Address from 32 to 63 DIP S2 DIP S3 DIP S2 DIP S3 1 2 3 4 5 1 2 3 Address 1 2 3 4 5 1 2 3 Address 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 32 1 0 0 0 0 0 0 0 1 1 0 0 0 0 1 0 0 33 Dial the 3 rods to OFF ...

Page 78: ...0 1 1 1 0 0 0 0 14 0 1 1 1 0 1 0 0 46 1 1 1 1 0 0 0 0 15 1 1 1 1 0 1 0 0 47 0 0 0 0 1 0 0 0 16 0 0 0 0 1 1 0 0 48 1 0 0 0 1 0 0 0 17 1 0 0 0 1 1 0 0 49 0 1 0 0 1 0 0 0 18 0 1 0 0 1 1 0 0 50 1 1 0 0 1 0 0 0 19 1 1 0 0 1 1 0 0 51 0 0 1 0 1 0 0 0 20 0 0 1 0 1 1 0 0 52 1 0 1 0 1 0 0 0 21 1 0 1 0 1 1 0 0 53 0 1 1 0 1 0 0 0 22 0 1 1 0 1 1 0 0 54 1 1 1 0 1 0 0 0 23 1 1 1 0 1 1 0 0 55 0 0 0 1 1 0 0 0 24 0...

Page 79: ...0 0 1 1 1 1 1 0 124 1 0 1 1 1 0 1 0 93 1 0 1 1 1 1 1 0 125 0 1 1 1 1 0 1 0 94 0 1 1 1 1 1 1 0 126 1 1 1 1 1 0 1 0 95 1 1 1 1 1 1 1 0 127 Step 4 System Setting of Centralized Controller SYSTEM SETTING includes ADDRESS SETTING and INITIALIZE SETTING The former one is used for setting address of control object communication module and the latter one for initializing the data in the centralized contro...

Page 80: ...play as the following figure I 01 02 and 03 of soft address is displayed which indicates normal communication of these 3 communication modules II PRESENT UNIT NO displays 01 08 which indicates No 08 indoor unit under 01 communication module is being checked III Press ROOM REGION button to check other indoor units status under present communication module Indoor units status is automatically detect...

Page 81: ...y 2s In this case COM1 must be used to connect them Refer to Step 2 C for details B Address DIP of communication module There are two methods for address setting The one is that communication module has been set by software store but the 3 digital DIP switch can not be dialed to OFF completely The other one is to set it manually but the 3 digital DIP switch should be dialed to OFF completely Refer...

Page 82: ...computer technologies is developed to collect the running state of the units and to monitor and control the units from a long distance Its structure is as follow 7 2 Connection Between the Computer and the Unit 1 Notice The address code of the communication modules should not be conflicted in one project Optoelectronic Isolated Repeater One every 800m of communication distance equipped with one an...

Page 83: ...unication cables Cable Description D1 crystal head and the other end is XH 4 core pin connector 2 core Type V twisted pair wire D2 both crystal head Standard parts D3 crystal head and the other end connects of it connects with wiring terminal of converter 2 core Type V twisted pair wire H2 both 9 core head Standard parts ...

Page 84: ...Optoelectronic Isolated Converter standard parts 1 Function Introduction R232 R485 optoelectronic Isolated converter is used to convert the signal 232 of PC COM and signal of bus 485 2 Dimension Description L mm W mm H mm optoelectronic isolated converter 94 72 23 3 Installation Dimension ...

Page 85: ...r independent power supply Power supply specification 12 30VDC 800mA 1 2 Optoelectronic Isolated Repeater optional parts 1 Function Introduction Optoelectronic Isolated repeater is mainly used to collect increase of communication distance and nodes when the quantity of communication modules is above 30 or communication distance is above 800m Refer to Project and Installation section for details 2 ...

Page 86: ... AC socket must be installed for independent power supply 12 30VDC 800mA Power supply specification 12 30VDC 800mA 1 3 Communication Module standard parts 1 Function Introduction Communication module is used for conversion and transfer of signal of PC and air conditioner during the communication of them making the role of communication controller Refer to User Instruction to Communication Module f...

Page 87: ...eria of Communication Module Ensure the specification of power adapter to avoid malfunction or damage to the communication module Ensure unique DIP address of each communication module in the project to avoid malfunction Ensure communication cable connects with correct COM to avoid malfunction The communication modules should be put in centralized control cabinet together to avoid direct sunlight ...

Page 88: ...nit mm 3 Installation Criteria The dimension of the cabinet should be designed according to quantity arrangement and put position of the communication modules before make of it Independent power supply for each communication module is needed so enough 220v AC sockets should be installed in the cabinet The communication cable and heavy current wire should be separated for the distance above 15cm Th...

Page 89: ...r 33 27 21 2 Installation Criteria Avoid knock insolation or rainwater Ensure tightness of each bayonet without load Perform conduction test after installation Replace the ones of poor contact The welding method is better than 3 way connector After the connection of communication cables with 3 way connector it must be fixed by insulating tape to avoid loose and poor contact of crystal head ...

Page 90: ...GREE COMMERCIAL AIR CONDITIONER DC INVERTER MULTI VRF 87 INSTALLATION ...

Page 91: ...machine If the installing position is of low strength the machine may drop down and thus cause human injury Please carry out installation in accordance with the rules for preventing the typhoon or earthquake The machine may tip over if the installation does not comply with the requirements The electrical cabling shall be carried out by qualified electricians in accordance with the Safety Code for ...

Page 92: ...it have the same address dial code Remote Control 1 Select the remote control mode 2 The centralized controller and communication module shall be installed free from the source of interference Power cord 1 The power cable must meet the specifications 2 The indoor units under the same system must be arranged under unified power supply Installation 1 The PVC pipes must meet the specifications 2 A sp...

Page 93: ...d sharp knock when handling the outdoor unit The inclination angle shall not be higher than 15 Connection of indoor unit and outdoor unit 1 Tighten the nuts 2 Provide proper protection to the outdoor connection pipe communication wires and power supply Leakage detection under pressure Keep the pressure for 24 hours Except for the influence by temperature it is deemed acceptable if pressure drop is...

Page 94: ... of outdoor unit Installation of remote control Connection of communica tion wires Connection of power cables Installation of drainage pipes Purge and make leakage detection under pressure Welding Connection of power cables Welding Address dial code Thermal insulation Connection of indoor unit and outdoor unit Connection of indoor unit and outdoor unit Address dial code Test run of indoor unit Lea...

Page 95: ...by the wastes or oil mist To meet the noise and vibration requirements the outdoor unit shall be installed by using rubber damping pad or spring damper The installing dimension shall comply with the installation requirements in these instructions The outdoor unit must be fixed at the installing position The installation shall be done by specialist technicians 3 2 Selection of Installation Site The...

Page 96: ... Pd120W NaB K 1100 340 1250 GMV L Pd140W NaB K 1100 340 1250 GMV L Pd160W NaB K 1100 340 1250 3 4 Installation space requirements Clearance data of single unit Installation space requirements GMV L Pd120W NaB K Unit Installation Space Dimension Unit mm Clearance data of multiple unit Arranged alongside on left and right Air outlet side open Unit mm 300 150 或以上 Obstructions on air outlet side 300 1...

Page 97: ...以上 Arranged on front and back 1500或以上 1500或以上 300 200 或以上 Arranged alongside left right and front back Unit mm 600 500 或以上 Arranged alongside on left and right Unit mm 300 150 or over 300 200 or over 1500 or over 1500 or over 600 500 or over 500 or over 100 or over ...

Page 98: ...DC INVERTER MULTI VRF INSTALLATION 95 Arranged by layer on upper and lower Unit mm 500 or above 200 or above 500 or above Bench Bench ...

Page 99: ...h to bear the weight of the unit The drainage hose is easy to drain The air flow is not blocked at the outlet and intake vents The connecting pipe indoors and outdoors can be led to outside conveniently The unit cannot be installed in the place where flammable or explosive thing is stored or the place where there is leakage of flammable or explosive gas The unit cannot be installed in the place wh...

Page 100: ...K Rear air return vent Drainage pipe Electric box Nameplate Gas pipe Liquid pipe Lower air return The following figure is applicable to the indoor units of GMV L R45P Na K GMV L R50P Na K GMV L R56P Na K GMV L R63P Na K GMV L R71P Na K GMV L R80P Na K GMV L R90P Na K GMV L R112P Na K GMV L R125P Na K GMV L R140P Na K Model A mm B mm C mm D mm E mm F mm G mm ...

Page 101: ... Na K 1382 420 1155 1340 1425 756 1278 GMV L R140P Na K 1382 420 1155 1340 1425 756 1278 Model H mm I mm J mm Liquid pipe inch Gas pipe inch Drainage hose Outer Inner GMV L R45P Na K 125 207 266 Φ1 4 Φ1 2 Φ30 Φ27 GMV L R50P Na K 125 207 266 Φ1 4 Φ1 2 Φ30 Φ27 GMV L R56P Na K 207 250 300 Φ3 8 Φ5 8 Φ30 Φ27 GMV L R63P Na K 207 250 300 Φ3 8 Φ5 8 Φ30 Φ27 GMV L R71P Na K 207 250 300 Φ3 8 Φ5 8 Φ30 Φ27 GMV...

Page 102: ...ill Installation of fresh air duct 1 When fresh air ductis needed to be connected cut the fresh air baffle as shown in fig 8 Plug up the gap of fresh air baffle by sponge if fresh air duct is not used 2 Install the circle flange so that the fresh air duct can be connected as fig 9 3 Well sealing and heat preservation should be done for both air duct and circle flange pipe 4 Fresh air should be the...

Page 103: ... outlet connection pipe produced by our company whose diameter is 200 can be ordered separately as standard fittings Model 50 and the model below it do not share the round air vent The following is the diagram for installation of round air duct Note 1 The longest length of air duct means the general length of the supply air duct to the farthest supply air outlet plus the general length of return a...

Page 104: ...t 4 times of the unit s If not reinforce before installation Refer to the installarion cardboard and find where should be reinforced Note There will be lots of lampblack and dust sticked on the acentric heat exchanger and water pump in dining room and kitchen which would reduce the capacity of heat exchanger thus leading water leakage and abnormal operation of the water pump The following treatmen...

Page 105: ...ce boards 950 Decorated surface boards 890 Ceiling opening 840 Indoor unit 680 Gaps between hoisting screw rods A Hoisting screw X4 Refrigerant pipe Package Dimension Model Width mm Depth mm Height mm GMV L R28T Na K 950 950 210 GMV L R36T Na K 950 950 210 GMV L R45T Na K 950 950 210 GMV L R50T Na K 950 950 210 GMV L R56T Na K 950 950 310 GMV L R63T Na K 950 950 310 GMV L R71T Na K 950 950 310 GMV...

Page 106: ... use of gasket anchor board can prevent gasket breaking off 2 Use installation cardboard Please refer to the installation cardboard about the dimension of ceiling opening The central mark of the ceiling opening is marked on the install cardboard Install the installation cardboard on the unit by bolt 3 piece and fix the angle of the drainage hose at the outlet vent by bolt 3 Adjust the unit to the ...

Page 107: ...event air conditioner breaking off Connect the refrigerant pipe When connecting the pipe to the unit or remove it from the unit please do use both spanner and torque wrench as shown in fig 3 When smearing both inside and outside of the flare nut with antifreezing motor oil screw it by hand and then tighten it with spanner Refer to form 1 to check if the wrench has been tightened too tight would ma...

Page 108: ...igger than the connection pipe s The diameter of polythene pipe Outer diameter 25mm Surface thickness 1 5mm Drainage hose should be short and drooping gradient should be at least 1 100 to prevent the formation of air bubble If drainage hose cannot has enough drooping gradient drain raising pipe should be added To prevent bent of the drain hose the distance between hoisting stands should is 1 to 1 ...

Page 109: ...has to endure the unnecessary outside force Please install the drainage hose according to the following process if several drain hoses connected together The specs of the selected join drain hose should fits the running capacity of the unit Above100mm T tie in join drain hose 2 Check the smoothness of drain after installation Check the drain state by immitting 600cc water slowly from the outlet or...

Page 110: ...le cover Test hole Above100mm Drain vent for repair use plastic stopper is included drain the water in waterspout by this outlet vent Immiting water from the outlet vent terminal Plastic water pot The length of the pipe should be about 100mm Immiting water from the rest hole ...

Page 111: ...on Location Such a place where cool air can be distributed throughout the room Such a place where is condensation water is easily drained out Such a place that can handle the weight of indoor unit Such a place which has easy access for maintenance Such a place where easy connection with the outdoor unit is permitted Such a place which is 1m or more away from other electric appliances such as telev...

Page 112: ...Zd Na K 260 745 840 695 238 GMVL R36Zd Na K GMV R36Zd Na K 260 745 840 695 238 GM L R50Zd Na K GMV R50Zd Na K 260 745 840 695 238 GMVL R71Zd Na K GMV R71Zd Na K 260 1220 1300 600 188 GMVL R90Zd Na K GMV R90Zd Na K 260 1500 1590 695 238 GMVL R112Zd Na K GMV R112Zd Na K 260 1500 1590 695 238 GMVL R125Zd Na K GMV R125Zd Na K 260 1500 1590 695 238 ...

Page 113: ...ll out the paper pattern Refer to Fig 2 2 Remove the return grill the side panel and the hanger bracket from the indoor unit as per procedure bellow Press the fixing knob of the return air inlet grills the grilles will be opened wider and then pull them out from the indoor Remove the side panel fixing screw and pull to the front direction arrow direction to remove Side panel fixing screw Refer to ...

Page 114: ...p 5 Lift the unit and slide forward unit the dent Refer to Fig 7 6 Screw tightly both hanger bracket setting bolts M8 Refer to Fig 5 7 Screw tightly both hanger bracket fixing bolts M6 to prevent the movement of the indoor unit Refer to Fig 5 8 Adjust the height so that rear side of the drainpipe slightly inclines to improve drainage Caution Adjust the height by turning the nut with a spanner Inse...

Page 115: ...DC INVERTER MULTI VRF INSTALLATION 112 ...

Page 116: ... GMV L R22G NaB K GMV L R22G NaC K GMV L R28G NaB K GMV L R28G NaC K GMV L R36G NaB K GMV L R36G NaC K GMV L R45G NaB K GMV L R45G NaC K A mm 770 770 830 830 B mm 250 250 285 285 C mm 190 190 189 189 Model GMV L R50G NaB K GMV L R56G NaB K A mm 1020 1020 B mm 310 310 C mm 228 228 Model GMV L R71G Na K GMV L R80G Na K A mm 1178 1178 B mm 326 326 C mm 227 227 ...

Page 117: ...by the professional personnel according to this install instruction to ensure the well use Please contact the local authorized repair department of Gree before installation Any malfunction caused by the unit that is installed by unauthorized center would not be treated on time by the inconvenience of the business contact It should be guided under the professional personnel when the air conditioner...

Page 118: ...t downward slant to the outdoor side The center of the hole should be determined refer to Fig 1 Insert the piping hole sleeve into the hole to prevent the connected piping and wiring from being damaged when passing through the hole Install the drainage hose For well draining the drainage hose should be placed at a downward slant Do not wrench or bend the drainage hose or flood its end bywater Fig ...

Page 119: ...m Height difference between indoor unit and outdoor unit Outdoor unit at lower 25m Height difference between indoor unit and outdoor unit 10m 5 3 Size of Connection Pipe 5 3 1 The size of the pipe main pipe from the outdoor unit to the 1 st manifold is same as the size of outdoor pipe Size of Outdoor Pipe Model Item GMV L Pd100W NaB K GMV L Pd120W NaB K GMV L Pd140W NaB K GMV L Pd160W NaB K Liquid...

Page 120: ...me as the size of indoor pipe See Table below If the distance from the first branch to one indoor unit is over 30m the air pipe from the 1 st branch to this indoor unit shall be increased by one level Capacity of Indoor Unit Air pipe Liquid pipe 22 25 28 type φ9 52 φ6 35 32 36 40 45 50 type φ12 7 φ6 35 40 45 50 type φ12 7 φ9 52 56 63 71 80 90 100 112 125 140 type φ15 9 φ9 52 ...

Page 121: ...on of dust and foreign articles from outside Airtight Incomplete welding Leakage from flared port Leakage from edge Installation of indoor unit Fabrication according to piping design dimension Installation of connection pipes Expel with nitrogen Welding Purge Airtight test Vacuuming and drying Fabrication of fitting pipe Purge Vacuuming and drying Expel with nitrogen 0 05 0 3Mpa Purge Fabrication ...

Page 122: ...emperature difference of 80 this extension may reach 13 84mm for every 10m To prevent failure the pipes must be reinforced as follows Spacing between supports Outer diameter of pipe mm 6 35 8 52 Over 12 7 Spacing between supports m Below 1 2 Below 1 2 Note If the gas pipe and liquid pipe are suspended together the size of liquid pipe shall prevail CAUTION Never let the pipe in direct contact with ...

Page 123: ...adhesive tape Seal the pipe end with ethylene tape 2 Coil unwinding CAUTION When unwinding the coil take care not to drag it on the ground The coil shall be slowly unwound on ground without any twisting In case of excessive compression by any hard object during unwinding the thermal insulation materials may be damaged and cannot be recovered which will deteriorate the performance of thermal insula...

Page 124: ...placing the copper pipe directly on ground Chamfer Burrs may occur on the cutting face of copper pipe and must be removed Meanwhile purge the foreign articles out of the pipe and refinish the pipe end Use scraper or other tools to remove the burrs on inner side To prevent copper scraps from falling into the pipe please keep the pipe end downward during operation If the pipe end is obviously deform...

Page 125: ...t thus reduce the possibility of leakage and oxidization For example It can decrease the weld by 8 spots Please act now to improve the quality No joint is required which will save the material costs Reduced waste of fitting pipe materials Reduced resistance in the fitting pipe The bending radius higher than the pipe joint CAUTIONS During bending there shall be no wrinkling or deformation on the in...

Page 126: ...erted here to replace the casing pipe In this way it is only needed to weld on one position where the pipe is expanded Steel pipe Jacketed bender Inner side wrinkled and deformed Bent with fissure occurring on this side The copper pipe might be deformed even if it is not bent Correct section Section Welding Bend section ...

Page 127: ...ure correct mounting size do not determine the position with your hands thus to prevent the copper pipe from moving when heated See below for the welding size of copper pipe Outer diameter of pipe D mm Min insert depth B mm Clearance A D φ6 35 6 φ9 52 φ12 7 7 0 05 0 21 φ15 8 8 φ19 05 φ22 2 φ25 4 10 0 05 0 27 φ28 6 φ31 8 12 A D φ35 14 0 05 0 35 If the mounting clearance is too large the diameter of...

Page 128: ... type branch pipe is installed with additional tube The purpose is to adjust the different pipe diameters If the pipe size selected on site is different from the size of branch connector please use the pipe cutter to cut from the middle of different connection pipes and remove the burrs Then insert the copper pipe to appropriate depth The branch pipes from Gree are all provided with positioning ma...

Page 129: ...emperature for braze welding 820 860 copper pipe becomes light red 2 Safety acknowledgement before operation a Roll calling of construction personnel and confirmation on their health status b Acknowledgement on work suits helmets clothes safety bags and safety shoes c Description of work location and environment d Job division shall be made Job content method and order shall be indicated Risk pred...

Page 130: ...elding torch with back fire arrestor shall be used to ensure safety c Take care not to be burned by flame and heating parts d Gas cylinder shall be handled carefully to prevent leakage e Combustible substances in the surrounding areas shall be moved away If movement is impossible fire proofing treatment shall be taken properly such as being covered by flame proof enclosure f Good ventilation is ne...

Page 131: ...g on friction force the clearance is considered proper c Nitrogen filled protection Since vigorous oxidation would occur on the surface of copper pipe at braze welding temperature to effectively restrain the generation of oxide coating in copper pipe nitrogen filled protection for copper pipe is necessary After copper pipes are assembled nitrogen shall be filled in copper pipe connectors Method fo...

Page 132: ... matching and then swayed along length of connector to make it heated uniformly until braze welding temperature is approached then copper pipe is heated circularly to reach braze welding temperature copper pipe becomes light red and at the same time brazing filler metal is added circularly to fill in the clearance around the connector uniformly and afterwards the welding torch is slowly moved away...

Page 133: ...ough surface of welding seam and burning through Welding seam should be free from defects such as pore slag inclusion underfill rosin joint and overlap 5 Others When braze welding is to be performed underneath a simple support shall be built such as two ladders Braze welding shall be easy to operate downward or in transverse direction In upward operation brazing filler metal is prone to fall so th...

Page 134: ... Is there evident sagging of brazing filler metal 6 8 Cleaning of Refrigerant Piping After a section of pipeline is welded cleaning of piping is necessary Nitrogen pressure is utilized to remove foreign matters such as dust water and beryllium oxide caused by welding in the piping 1 Main purposes of cleaning are as follows To eliminate oxide caused by insufficiency of nitrogen filled protection du...

Page 135: ...difficult to be withstood and at the moment the insulation material shall be released quickly And then the mouth shall be blocked again Repeat such procedures several times Afterwards use a wood board posted with white paper to check it If there is not evident dirt on the white paper the pipe will be considered clean g Shut off the main valve of nitrogen h Repeat the above procedures on indoor uni...

Page 136: ...eligible For example nitrogen is filled to reach 2 5MPa at 30 after 24 hours when temperature becomes 25 the system will be eligible if pressure is over 2 43 MPa and ineligible below 2 43 MPa If ineligible leak sources must be located After leak sources are found re welding or repair welding is necessary Then the above procedures shall be repeated Nitrogen is filled pressurized and maintained unti...

Page 137: ...ight test of refrigerant pipe never carry out thermal insulation or wrapping work at the weld and flared connection of indoor unit The pressure shall be simultaneously applied from the pipes on outdoor side Never apply pressure from a single side 1 4 Caution Before completing the airtight test of refrigerant pipe never carry out thermal insulation or wrapping work at any weld 6 10 Heat Preservatio...

Page 138: ... temperature moisture in piping will be evaporated If vacuum is 0Kgf cm2 of absolute pressure gauge pressure is 1Kgf cm2 moisture in the system can be evaporated totally 2 Selection of vacuum pump Proper vacuum pumps must be selected before vacuum pumping Insufficient capacity of selected vacuum pump would lead to overtime of vacuum pumping and fall short of the requirement for vacuum degree A pro...

Page 139: ...lation method for refrigerant charging Refrigerant shall be charged according to calculated amount specified in engineering drawings Method for calculation of added refrigerant volume based on liquid pipe Mass of refrigerant to be charged length of liquid pipe refrigerant charge amount of every meter of liquid pipe Amount of refrigerant charge for every meter of liquid pipe kg m Medium Φ22 2 Φ19 0...

Page 140: ...all valve of outdoor unit Open VL and charge gas state refrigerant into the gas pipe until required charging amount is reached c Observe electronic balance or spring balance When required amount is reached the valve shall be closed very quickly and then source valve on the refrigerant valve shall be shut off d The amount of charging refrigerant shall be recorded Refrigerant charge shall be recorde...

Page 141: ... using screw rod Use screws to fix onto wall Directly place on ceiling plane Caution Never place overhung in air The indoor unit shall be firstly connected to a section of pipe connected by nut Then connect the pipe to the electronic expansion valve sub assembly by welding To Indoor Unit To Indoor Unit To Indoor Unit To Indoor Unit To Indoor Unit To Outdoor Unit To Outdoor Unit To Outdoor Unit To ...

Page 142: ...e strap small to fix the cable of electronic expansion valve sub assembly onto the pipe or other objects When connecting the cable of electronic expansion valve sub assembly please take care to prevent the cable from contact with the hot or humid objects 4 Final treatment The section where the pipe is connected must be wrapped for thermal insulation WARNING Please ensure the pipe is fully covered ...

Page 143: ...ames Outer diameter of water pipe mm ф 25 32 ф 25 ф 32 Spacing between horizontal pipes mm 800 1000 1500 Spacing between standpipes mm 1500 2000 Each standpipe shall have two hanger frames at least 4 The gradient of condensate pipe shall be over 1 and the gradient of main pipe shall not be less than 0 3 while there shall be no overhanging slope 5 When connecting the 3 way section of condensate pip...

Page 144: ... base The sheath shall not affect the pipe gradient The clearance between pipe and sheath shall be blocked by using flexible inflammable materials The sheath shall not be used as the supporting point of the pipe 11 The joint of thermal insulation materials must be adhered by using special glue and then wrapped with plastic tape having a width not less than 5cm to avoid condensing 12 Ensure a gradi...

Page 145: ...formed the pump can only compress the air bag no matter how forcible it pushes but there is no flowing water thus resulting in abnormal water level This will cause flooding of the ceiling 16 If the air flow of indoor unit is high this might cause negative pressure and result in return suction of outdoor air Therefore U type water trap shall be designed on the drainage side of each indoor unit Inst...

Page 146: ...int NO2 Connection of drain elbow NO3 Connection of horizontal pipe Drainage hose is requisite for air conditioner unit During cooling the moisture in the air will condense on the surface of evaporator Such condensing water must be drained out of the unit Meanwhile the drainage hose has an important role to determine if the air conditioner can plays its full functions Indoor unit Indoor unit Joint...

Page 147: ...d has enough gradient a distance of 1 1 5m shall be kept between the hanger frames Use drainage hose and clamp Insert the drainage hose to the root From the middle of white tape tighten the clamp until the tightening distance to the screw head is shorter than 4mm A For thermal isolation use sealing tape to wrap the drainage hose and clamp B The indoor drainage hose shall be thermally insulated C T...

Page 148: ...f all the indoor units in several systems Notes The ceiling height must be considered and a specific gradient shall be ensured along the water flow direction 2 4 way Cassette Type a Installation of drainage hose The drainage hose shall be installed to ensure smooth flow of water The diameter of drainage hose shall be equal to or higher than the diameter of connection pipe PVC pipe exclusive of the...

Page 149: ...ighten the clamp For thermal insulation wrap the big sponge to the drainage hose clamp The indoor drainage hose shall be thermally insulated To connect the drainage hoses for multiple machines please use the method of multi pipe collection as shown below Roof Hanger seat Within 300mm Below 280mm Drainage hose accessory Drainage rise pipe Ceiling Clamp accessory Below 500mm Drainage hose accessory ...

Page 150: ...ll be thermally insulated The thickness of thermal insulation pipe must meet the requirements The clearance between thermal insulation pipes shall be sealed with adhesive sticker Please discharge the water to the ground drain water closet or any other place easy to drain the water out b After installation check if the drainage is smooth 3 Wall mounted Type Assemble the drainage hose as shown below...

Page 151: ...d ensuring that there is no water deposit except the specially designed water trap After connection of the drainage hose is completed firstly carry out closed water test Seal the outlet of drainage hose with adhesive tape or plug Then fill water into the drainage hose system form indoor unit side Stop filling after ensuring that all the drainage hoses are filled with water After 24 hours check all...

Page 152: ...e higher than 0 035w m k when the average temperature is 0 Thickness of thermal insulation layer The thickness of thermal insulation layer on condensate pipe shall be over 10mm The joint of thermal insulation materials must be adhered by using special glue and then wrapped with plastic tape having a width not less than 5cm to avoid condensing Thermal insulation is not required for the outdoor sect...

Page 153: ...tric shock The earthing resistance shall comply with the national standard GB17790 Reliable earthing terminal must be provided on the user s power supply Never connect the earthing wire to the following places Water pipe Gas pipe Sewage pipe Other places that the specialist technicians think unreliable 9 2 SPECIFICATIONS OF POWER CORD CIRCUIT BREAKER Model Power supply V Ph Hz Capability of circui...

Page 154: ...e kept but also that the unit can start automatically after the power supply is resumed But if the unit is under STOP state before power shutdown it will be also under STOP state after the power supply is resumed DIP swicth 2 L I Setting of control mode including wired control and remote control The wired control mode refers to that the indoor unit is controlled from wired controller wired control...

Page 155: ...th 4 I O Setting of ambient temperature acquisition point This setting is mainly used when the temperature of air conditioner area differs largely from the return air inlet temperature of the unit Meanwhile this setting is only valid when the receiver is connected including the setting of temperature acquisition point at return air inlet and setting of the temperature acquisition point at receiver...

Page 156: ...ress is 1 NOTES To use multiple indoor units in parallel make sure to change the setting of address code before installation and guarantee that the address code of each indoor unit must be different The address code is located on the mainboard of indoor unit If wired controller is used make sure to dial the address code of wired controller to the position same as the address code on corresponding ...

Page 157: ... 1 0 0 0 9 1 0 0 1 10 1 0 1 0 11 1 0 1 1 12 1 1 0 0 13 1 1 0 1 14 1 1 1 0 15 1 1 1 1 16 Example 1 If the dial value is 0111 this represents that the address is 8 the pins 1 2 3 of the dial switch are dialed to the numerical end and the pin 4 is dialed to ON Example 2 If the dial value is 1010 this represents that the address is 11 the pins 2 4 of the dial switch are dialed to the numerical end and...

Page 158: ...e dial up value is 0 when the lever is dialed to ON end the dial up is 1 when the lever is dialed to numerical end on opposite side For number 4 1 on the capacity code the dial up 4 refers to high bit and the dial up 1 refers to low bit Dial up Table 4 bit DIP swicth 4 bit 3 bit 2 bit 1 bit Capacity 0 0 0 0 20 0 0 0 1 25 0 0 1 0 30 0 0 1 1 35 0 1 0 0 40 0 1 0 1 45 0 1 1 0 50 0 1 1 1 60 1 0 0 0 224...

Page 159: ...DC INVERTER MULTI VRF MAINTENANCE 156 MAINTENANCE ...

Page 160: ...e drive board of variable frequency compressor is incurred to error For details on the error message please refer to the Display Code on Digital Tube of Outdoor Unit E6 Communication error Communication The mainboard of indoor unit or the wired control is incurred to communication error with outdoor unit The indoor unit incurred to communication error will be stopped and display the error code E7 ...

Page 161: ...connected If yes alarm will be sent otherwise no processing will be made If the controller of outdoor unit detects failure of outdoor sensor under open circuit short circuit and excess of test value the outdoor unit will execute the following default actions that is the error message will be sent to each indoor unit and the error code will be displayed via error indicator or wired controller When ...

Page 162: ...sor error F1 Indoor tube middle sensor error F2 Indoor tube exit sensor error F3 Outdoor ambient temperature sensor error F4 Outdoor tube inlet sensor error F5 Outdoor ambient temperature sensor error F6 Outdoor tube exit sensor error F7 Error with exhaust temperature sensor 1 fixed frequency F8 Error with exhaust temperature sensor 2 digital F9 Error with exhaust temperature sensor 2 digital FA E...

Page 163: ...on of compressor against loss of synchronization H7 E5 Indoor coil inlet temperature sensor error F5 F5 Compressor protection against loss of phase Ld E5 Indoor coil middle temperature sensor error F6 F6 Inverter drive communication fault P6 E5 Outdoor coil outlet temperature sensor error F7 F7 IPM module protection H5 E5 Exhaust temperature sensor error F9 F9 1 3 Display of the number of indoor u...

Page 164: ...hanger is smooth Check if the indoor and outdoor fans run normally Check if the indoor swing louver is fully open Check if the capacity output of outdoor unit is equal to the capacity demand of indoor units Check if the indoor electronic expansion valve can work normally Check if the indoor outdoor filters or radiating fins are dirty or blocked Yes Yes Yes Yes Yes Yes No No No No No No Cover up th...

Page 165: ...and other parts Add refrigerant according to the nominal refrigerant volume on nameplate and the calculated charge volume Use pressure gauge to measure if the pressure is really low Check if the refrigerant in the system is too low Check if the operation mode of indoor unit is set properly Check if the gas valve and liquid valve of outdoor unit are fully open Check if the front panel of outdoor un...

Page 166: ... to the capacity demand of indoor units Refer to the dial up of indoor and outdoor unit Repair the leakage of system pipe and add refrigerant according to the required volume No Yes No No No No No No No Yes Yes Yes Yes Check if the electronic expansion valve is correct Change the outdoor unit mainboard Change the mainboard chip of the outdoor units Change corresponding electronic expansion valve s...

Page 167: ...e protection Contact the power supply company If the current value is higher than the preset value of protector If the high voltage of unit is normal If the voltage is normal The communication resumes to normal Yes Yes Yes No No No Current protection If the voltage is normal Adjust the power parameters Remove the compressor cables and restart If overcurrent protection Replace the compressor Module...

Page 168: ...matching Within 135 Correct the match of indoor units to allowable capacity Check if the charge volume is too high The charge volume is too high Adjust to allowable range stated in the specifications Use DC level to monitor P N voltage of the module Voltage stabilized 252 330V with no fluctuation over 10V DC capacitor damaged Replace it Compressor damaged module damaged ...

Page 169: ...ck the orientation of plug and socket Please mount the included magnetic ring Please supply power to the outdoor unit Change the repeated address codes Change the address code of wired controller Measure if the communication line is through Check if the communication line of indoor and outdoor unit is connected correctly Check if the two ends of communication line are mounted with magnetic ring Ch...

Page 170: ...e the mainboard of indoor unit Fault display If the drainage pipe is unblocked and if the water flow is smooth If the drainage pump is running Check if the water overflows If the voltage of liquid level switch terminal is correct If the voltage of drainage pump terminal is correct No No No No No Yes Yes Yes Yes Yes Replace the mainboard of indoor unit Replace the temperature sensor Check the orien...

Page 171: ...the unit to the power supply and prevent the operation of unit from affecting other electric appliances like TV Air switch For connecting and disconnecting the circuit of main loop provided with overcurrent and short circuit protection No energization to the unit and mainboard If the voltage of L N on terminal board inside the unit is 220V Check the power supply of terminal board for any fault Che...

Page 172: ... in different time section and the current is hence generated on the stator Meanwhile magnetic field is induced on the rotor windings thus to push the rotor and drive the compressor to run PFC module The PFC module integrates 4 diode tubes and 2 MOS tubes They convert the AC input power into DC power Meanwhile the connection and disconnection of MOS tube is controlled via PWM wave thus to realize ...

Page 173: ...DC INVERTER MULTI VRF MAINTENANCE 170 3 WIRING DIADRAM 1 Outdoor unit GMV L Pd100W NaB K GMV L Pd120W NaB K GMV L Pd140W NaB K GMV L Pd160W NaB K ...

Page 174: ...MULTI VRF MAINTENANCE 171 2 Indoor unit GMV R22P Na K GMV R25P Na K GMV R28P Na K GMV R36P Na K GMVL R22P Na K GMVL R25P Na K GMVL R28P Na K GMVL R36P Na K GMV R45P Na K GMV R50P Na K GMVL R45P Na K GMVL R50P Na K ...

Page 175: ...MAINTENANCE 172 GMV R56P Na K GMV R71P Na K GMV R80P Na K GMVL R56P Na K GMVL R71P Na K GMVL R80P Na K GMV R90P Na K GMV R112P Na K GMV R140P Na K GMVL R90P Na K GMVL R112P Na K GMVL R140P Na K GMV R125P Na K GMVL R125P Na K ...

Page 176: ...DC INVERTER MULTI VRF MAINTENANCE 173 GMV R22P NaB K GMV R25P NaB K GMV R28P NaB K GMV R32P NaB K GMV R36P NaB K 63624640 ...

Page 177: ...GMVL R36T Na K GMVL R45T Na K GMVL R50T Na K GMVL R56T Na K GMVL R71T Na K GMVL R80T Na K GMVL R90T Na K GMVL R112T Na K GMVL R125T Na K Manual Panel 4 3 2 1 Limit Switch Water Level Switch Swing Motor Environment Temp sensor Out Temp sensor Mid Temp sensor In Temp sensor GMV R22G NaB K GMVL R22G NaB K GMV R28G NaB K GMVL R28G NaB K GMV R36G NaB K GMVL R36G N aB K GMV R45G NaB K GMVL R45G NaB K ...

Page 178: ...V R50G NaB K GMV R56G NaB K GMVL R50G NaB K GMVL R56G NaB K GMV R22G NaC K GMV R28G NaC K GMV R36G NaC K GMV R45G NaC K GMVL R22G NaC K GMVL R28G Na C K GMVL R36G NaC K GMVL R45G NaC K GMV R71G Na K GMV R80G Na K GMVL R71G Na K GMVL R80G Na K ...

Page 179: ...DC INVERTER MULTI VRF MAINTENANCE 176 ...

Page 180: ...ENANCE GMV R28Zd Na K GMV R36Zd Na K GMV R50Zd Na K GMV R71Zd Na K GMV R90Zd Na K GMV R112Zd Na K G MV R125Zd Na K GMVL R28Zd Na K GMVL R36Zd Na K GMVL R50Zd Na K GMVL R71Zd Na K GMVL R90Zd N a K GMVL R112Zd Na K GMVL R125Zd Na K ...

Page 181: ...ding terminal thus to avoid error during reinstallation 2 Loosen the nuts fixing the compressor onto foundation Firstly heat the connection pipe of compressor by welding Then pull out the connection pipe Note During welding take care not to let the flame burn other elements 3 Loosen the nuts fixing the compressor onto foundation Use spanner to loosen the nuts fixing the compressor onto the base se...

Page 182: ...wdriver to tighten the screws fixing the power cable Connect the power cable correctly Note When connecting the power cable please take care on the marking of power cable color and corresponding terminal code 8 Check and open the cover plate Check if the pipe is connected properly Check if the pipe is connected properly If no problem close the front and back cover plate Use spanner to remove the b...

Page 183: ...onnection pipe Note During welding take care not to let the flame burn other elements 3 Replace the 4 way valve and weld the 4 way valve to connection pipe Replace the 4 way valve and then weld the four joints on 4 way valve sub assembly Replace the 4 way valve and then weld the four joints on 4 way valve sub assembly 4 Replace the 4 way valve and weld the 4 way valve to liquid bypass sub assembly...

Page 184: ...he connection pipe of electronic expansion valve by welding then pull out the connection pipe Note During welding take care not to let the flame burn other elements 2 Remove and replace the electronic expansion valve Remove and replace the electronic expansion valve 3 Weld the electronic expansion valve to connection pipe Weld the connection pipe of electronic expansion valve Note During welding t...

Page 185: ...t to let the flame burn other elements 2 Loosen the screws fixing the oil separator Use screwdriver to loosen the screws fixing the oil separator 3 Remove the oil separator and replace it Remove the oil separator and replace it 4 Tighten the screws fixing the oil separator Use screwdriver to tighten the screws fixing the oil separator 5 Weld the oil separator to the connection pipe Weld the three ...

Page 186: ...2 Loosen the screws fixing the gas liquid separator Use screwdriver to loosen the screws fixing the gas liquid separator 3 Remove the gas liquid separator and replace it Remove the gas liquid separator and replace it 4 Tighten the screws fixing the gas liquid separator Use screwdriver to tighten the screws fixing the gas liquid separator 5 Weld the gas liquid separator to the connection pipe Weld ...

Page 187: ...urn other elements 2 Loosen the bolts fixing the liquid tank Use spanner to loosen the bolts fixing the liquid tank 3 Remove the liquid tank and replace it Remove the liquid tank and replace it 4 Tighten the bolts fixing the liquid tank Use spanner to tighten the bolts fixing the liquid tank 5 Weld the liquid tank to connection pipe Weld the two joints on liquid tank then connect the pipe properly...

Page 188: ...Instruction 1 Loosen the screws fixing the water tray Use screwdriver to loosen the screws fixing the water tray 2 Remove the water tray Remove the water tray 3 Loosen the bolts fixing the fan Use spanner to loosen the bolts fixing the fan 4 Remove the fan Remove the fan 5 Loosen the screws fixing the motor Use screwdriver to loosen the screws fixing the motor ...

Page 189: ...e screws fixing the motor Use screwdriver to tighten the screws fixing the motor 8 Mount the fan and tighten the fixing bolts Mount the fan and use spanner to tighten the bolts fixing the fan 9 Mount the water tray and tighten the screws Use screwdriver to loosen the screws fixing the water tray Tighten these screws ...

Page 190: ...ter outlet pipe and use screwdriver to loosen the screws fixing the water pump 4 Remove the water pump and replace it Remove the water pump and replace it 5 Connect the drainage hose and tighten the screws fixing the water pump Connect the drainage hose and use screwdriver to tighten the screws fixing the water pump 6 Mount the water tray and tighten the screws Use screwdriver to tighten the screw...

Page 191: ...ck propeller housing 3 Remove the front propeller housing Use screwdriver to loosen the screws fixing the front propeller housing Remove the front propeller housing 4 Loosen the fan and motor Use inner hexagonal spanner to loosen the screws on fan and remove the clamp fixing the motor 5 Remove the motor Firstly disengage the motor from motor support and then disengage the fan from the motor Then r...

Page 192: ...eller housing Loosen the clamp between back propeller housing and front propeller housing Remove the back propeller housing 4 Remove the front propeller housing Use screwdriver to loosen the screws fixing the front propeller housing Remove the front propeller housing 5 Loosen the fan and motor Use inner hexagonal spanner to loosen the screws on fan and remove the clamp fixing the motor 6 Remove th...

Page 193: ...DC INVERTER MULTI VRF MAINTENANCE 190 7 Replace with a new motor Assemble the unit in reverse to the disassembly procedures and energize it for testing ...

Page 194: ...tor cables in electric box 2 Remove the filter sub assembly and return air inlet cover board Remove the filter sub assembly from the return air inlet frame and use screwdriver to remove the return air inlet cover board 3 Remove the screws on fan sub assembly Remove the screws on fan sub assembly 4 Overturn the propeller housing Rotate the propeller housing to the return air inlet opening according...

Page 195: ...the motor shaft Remove the motor from the return air inlet and replace with new motor In which for the motor with automatic motor support the motor support shall be removed in advance and then changed to the unit 7 Assemble the unit in reverse to the disassembly procedures Assemble the unit in reverse to the disassembly procedures and energize it for testing ...

Page 196: ...ewdriver to remove the return air inlet cover board 3 Remove the screws on fan sub assembly Remove the screws on fan sub assembly 4 Overturn the propeller housing Rotate the propeller housing to the return air inlet opening according to arrow direction 5 Loosen the fan and motor Use inner hexagonal spanner to loosen the screws on fan and remove the clamp fixing the motor 6 Replace the motor Firstl...

Page 197: ...DC INVERTER MULTI VRF MAINTENANCE 194 7 Assemble the unit in reverse to the disassembly procedures Assemble the unit in reverse to the disassembly procedures and energize it for testing ...

Page 198: ... front case and electric box Firstly use screwdriver to loosen the screws Unplug the motor terminals in the electric box Loosen the earth screws and lift up 2 Remove the evaporator Firstly use screwdriver to remove the fixing screws on the left and right side Then remove the evaporator 3 Remove the motor and cross flow fan Use screwdriver to remove the screws fixing the motor clamp and remove the ...

Page 199: ...res to prevent moisture Dry the PFV board and apply moisture proof glue 2 If it is dirty find out the cause and take dustproof measures If the air quality of service environment is poor it is also required to clear off the dirt periodically 3 If it is short circuit find out the cause and clean the electric box to prevent the iron scraps or other conductive substances from attaching on the board Re...

Page 200: ...ut the cause and take dustproof measures If the air quality of service environment is poor it is also required to clear off the dirt periodically 3 If it is short circuit find out the cause and clean the electric box to prevent the iron scraps or other conductive substances from attaching on the board Record and feed back Replace the Mainboard No Yes No No Yes Yes Yes Yes No No Mainboard nixietube...

Page 201: ...kage and the switch changed Yes Check if the PFC module in the mainboard is short circuiting Please mount the electric switches according to the capacity specified in the instruction In case the leakage flow is too big find out the leakage point and handle it Check if the relay K8 in mainboard is connected Check if the IPM module in the mainboard is short circuiting Check the wiring diagram Change...

Page 202: ...Yes No No No No Yes Yes Yes Yes No If the modules are tightened If the modules are not tightened excess temperature could be caused in the modules even burning down If the module is uniformly coated The uneven coating of the silicate gel could result in bad cooling of the modules or uneven temperature or modules burning down due to the sensor failed to detect the excess temperature at some part To...

Page 203: ...se check if the compressor is in normal condition if this has been detected Please check the obstruction source if it cause by obstruction and strengthen obstruction anti measures If it happens during the compressor frequency reduction How many times does it happen within 1 hour If it happens during the compressor operating Please cut off the power immediately once the network voltage is excess hi...

Page 204: ...bution The coarse line refer to control line and the fine line refers to control line Air switch Filter board Compres sor Control signals for 4 way valve air bypass and electric heater Indoor unit Mainboard Control signals for temperature sensor electronic expansion valve and HV LV switch ...

Page 205: ...DC INVERTER MULTI VRF MAINTENANCE 202 5 EXPLODED VIEWS AND PART LIST 5 1 Exploded Views and Parts List of Outdoor Unit 1 GMV L Pd100W NaB K GMV L Pd120W NaB K GMV L Pd140W NaB K GMV L Pd160W NaB K ...

Page 206: ...tor 4312002101 1 19 Gas by pass valve sub assy 07334329 1 20 Electromagnetic Valve 43000054 1 21 Rear Side Plate Sub Assy 01314212 1 22 Solenoid Coil 4304000403 1 23 Handle 26235253 2 24 Connection Pipe 05024911 1 25 Front Side Plate Sub Assy 01305430 1 26 Connection Pipe 05024916 1 27 Discharge Tube Sub Assy 04634226 1 28 Pressure Protect Switch 4602000902 1 29 Discharge Tube Sub Assy 04634227 1 ...

Page 207: ...L Pd120W NaB K 2 Condenser Assy is only applicable to GMV L Pd140W NaB K GMV L Pd160W NaB K 3 Electric Box Assy is only applicable to GMV L Pd100W NaB K 4 Electric Box Assy is only applicable to GMV L Pd120W NaB K 5 Electric Box Assy is only applicable to GMV L Pd140W NaB K 6 Electric Box Assy is only applicable to GMV L Pd160W NaB K 7 Cut off Valve is only applicable to GMV L Pd100W NaB K GMV L P...

Page 208: ...LTI VRF MAINTENANCE 205 5 2 Exploded Views and Parts List of Indoor Unit 5 2 14 way Cassette Type Unit 1 GMV L R28T Na K GMV L R36T Na K GMV L R45T Na K GMV L R50T Na K GMV L R56T Na K GMV L R71T Na K GMV L R80T Na K ...

Page 209: ...1412721 1 01412721 1 19 Flow Guide Loop 10372701 1 10372701 1 20 Electric Box 20102701 1 20102701 1 21 Wire Clamp 71010102 4 71010102 4 22 Terminal Board T360B 42011222 1 42011222 1 23 Transformer 43110233 1 43110233 1 24 Electric Box Cover I 20102702 1 20102702 1 25 Electric Box Cover II 20102703 1 20102703 1 26 Main Board 30226316 1 30226316 1 27 Capacitor 33010010 1 33010010 1 28 Rubber plug 76...

Page 210: ...412721 1 01412721 1 19 Flow Guide Loop 10372701 1 10372701 1 20 Electric Box 20102701 1 20102701 1 21 Wire Clamp 71010102 4 71010102 4 22 Terminal Board T360B 42011222 1 42011222 1 23 Transformer 43110233 1 43110233 1 24 Electric Box Cover I 20102702 1 20102702 1 25 Electric Box Cover II 20102703 1 20102703 1 26 Main Board 30226316 1 30226316 1 27 Capacitor 33010010 1 33010010 1 28 Rubber plug 767...

Page 211: ... 1 01412721 1 19 Flow Guide Loop 10372701 1 10372701 1 20 Electric Box 20102701 1 20102701 1 21 Wire Clamp 71010102 4 71010102 4 22 Terminal Board T360B 42011222 1 42011222 1 23 Transformer 43110233 1 43110233 1 24 Electric Box Cover I 20102702 1 20102702 1 25 Electric Box Cover II 20102703 1 20102703 1 26 Main Board 30226316 1 30226316 1 27 Capacitor 33010010 1 33010010 1 28 Rubber plug 76712701 ...

Page 212: ...DC INVERTER MULTI VRF MAINTENANCE 209 2 GMV L R90T Na K GMV L R112T Na K GMV L R125T Na K ...

Page 213: ...032 4 70140032 4 19 Electric Box Base Plate 01412721 1 01412721 1 20 Flow Guide Loop 10372701 1 10372701 1 21 Electric Box 20102701 1 20102701 1 22 Wire Clamp 71010102 4 71010102 4 23 Terminal Board T360B 42011142 1 42011142 1 24 Transformer 43110233 1 43110233 1 25 Electric Box Cover I 20102702 1 20102702 1 26 Electric Box Cover II 20102703 1 20102703 1 27 Main Board 30226316 1 30226316 1 28 Capa...

Page 214: ...DC INVERTER MULTI VRF MAINTENANCE 211 5 2 2 Duct Type Unit 1 GMV L R22P Na K GMV L R25P Na K GMV L R28P Na K GMV L R32P Na K GMV L R36P Na K ...

Page 215: ...quid entered Pipe Sub assy 03334601 1 03338810 1 9 Collect Gas Pipe Sub assy 01305018 1 04674609 1 10 Evaporator Sub assy 01038785 1 01038786 1 11 Fan Fixed Plate Sub assy 01339095 1 01339095 1 12 Centrifugal fan 10319051 1 10319051 1 13 Return air inlet side board Sub assy 01499055 1 01499055 1 14 Motor 15019053 1 15019522 1 15 Centrifugal fan 10319051 1 10319051 1 16 Bottom Cover 01259086 1 0125...

Page 216: ...DC INVERTER MULTI VRF MAINTENANCE 213 2 GMV L R40P Na K GMV L R45P Na K GMV L R50P Na K ...

Page 217: ...porator 01078629 1 8 Liquid entered Pipe Sub assy 04324601 1 9 Collect Gas Pipe Sub assy 04674601 1 10 Evaporator Sub assy 01038623 1 11 Fan Fixed Plate Sub assy 01339058 1 12 Centrifugal fan 10319051 1 13 Return air inlet Sub assy 01499061 1 14 Motor FG70B 15018322 1 15 Centrifugal fan 10319051 1 16 Bottom Cover 01258649 1 17 Cover of Air in 01258650 1 18 Water Tray Sub assy 01278633 1 19 Right S...

Page 218: ...DC INVERTER MULTI VRF MAINTENANCE 215 3 GMV L R56P Na K GMV L R63P Na K GMV L R71P Na K GMV L R80P Na K ...

Page 219: ... 01078603 1 8 Liquid entered Pipe Sub assy 04324603 1 9 Collect Gas Pipe Sub assy 04674602 1 10 Evaporator Sub assy 01054601 1 11 Fan Fixed Plate Sub assy 01338631 1 12 Fan Motor Left SYP 200 190J 1 15018603 1 13 Return air inlet side board Sub assy 01499074 1 14 Motor FG150B 15018612 1 15 Fan motor Right SYP 200 190J 1 15018604 1 16 Bottom Cover 01258612 1 17 Cover of Air in 01258614 1 18 Water T...

Page 220: ...DC INVERTER MULTI VRF MAINTENANCE 217 4 GMV L R90P Na K GMV L R100P Na K GMV L R112P Na K GMV L R125P Na K GMV L R140P Na K ...

Page 221: ...8603 1 8 Liquid entered Pipe Sub assy 03338802 1 9 Collect Gas Pipe Sub assy 04674608 1 10 Evaporator Sub assy 01038624 1 11 Fan Fixed Plate Sub assy 01338630 1 12 Motor FG75B 15018613 13 Fan Motor Left SYP 200 190J 1 15018603 2 14 Return air inlet side board Sub assy 01499066 1 15 Motor FG150B 15018612 1 16 Fan motor Right SYP 200 190J 1 15018604 1 17 Bottom Cover Assy 01258603 1 18 Cover of Air ...

Page 222: ...DC INVERTER MULTI VRF MAINTENANCE 219 5 2 3 Wall Mounted Type Unit 1 GMV L R22G NaB K GMV L R28G NaB K ...

Page 223: ...ase 20002215 1 12 Screw Cover 24252006 3 13 Filter 11122002 2 14 Remote Control Y612C 305125033 1 15 Decorate Piece 68012019 1 16 Receiver Board 30545702 1 17 Front Panel 20002209 1 18 Guide Louver 2 10512034 1 19 Guide Louver 1 10512033 1 20 Motor MP28VA 15212110 1 21 Motor Clamp A 26112017 1 22 Motor FN14A 150121081 1 23 Electric Box Cover 22242030 1 24 Terminal Board T4B3A 42011233 1 25 Coverin...

Page 224: ...DC INVERTER MULTI VRF MAINTENANCE 221 2 GMV L R36G NaB K GMV L R45G NaB K ...

Page 225: ...1 Screw Cover 24252007 3 12 Filter 11122440 2 13 Remote Control Y612C 305160051 1 14 Decorate Piece 68012019 1 15 Receiver Board 30545552 1 16 Front Panel 20002292 1 17 Guide Louver 26112043 1 18 Guide Louver 26112042 1 19 Motor MP28EA 15212105 1 20 Right Motor Clamp 26112429 1 21 Motor FN22A 15012062 1 22 Electric Box Cover 22242017 1 23 Terminal Board T4B3A 42011233 1 24 Covering Plate 20102119 ...

Page 226: ...DC INVERTER MULTI VRF MAINTENANCE 223 3 GMV L R50G NaB K GMV L R56G NaB K ...

Page 227: ...4115 1 18 Remote Controller Y512 305125063 1 19 Displaying Light Board 22432071 1 20 Electric Box Cover 1 20112019 1 21 Wire Clamp 71010103 1 22 Terminal Board T4B3A 42011233 1 23 Electric Box Cover 20112020 1 24 Main PCB 30226116 1 25 Transformer 57X25C 43110237 1 26 Room Sensor 15k 3900019813 1 3900019814 1 3900019815 1 27 Tube Sensor 20k 3900019816 1 28 Sensor Insert 42020063 3 29 Electric Box ...

Page 228: ...DC INVERTER MULTI VRF MAINTENANCE 225 4 GMV L R71G Na K GMV L R80G Na K ...

Page 229: ...ler Y512 305125063 1 19 Receiver Board JD 30046093 1 20 Electric Box Cover 20102252 1 21 Switch Lever 10582007 1 22 Wire Clamp 71010103 1 23 Terminal Board T4B3A 42011233 1 24 Electric Box Cover 201022513 1 25 Main PCB 30226420 1 26 Transformer 48X26G 43110233 1 27 Room Sensor 3900019813 1 3900019814 1 3900019815 1 28 Tube Sensor 3900019816 1 29 Sensor Insert 42020063 3 30 Electric Box 20102250 1 ...

Page 230: ...DC INVERTER MULTI VRF MAINTENANCE 227 5 GMV L R22G NaC K GMV L R28G NaC K ...

Page 231: ...11 Front Case 200024442 1 12 Screw Cap 24252006 3 13 Filter 11122002 2 14 Remote Control Y512 305125063 1 15 Display Board 30545707 1 16 Front Panel 20002522 1 17 Guide Louver 10512034 1 18 Guide Louver 10512033 1 19 Stepping Motor 15212110 1 20 Motor Press Plate 26112014 1 21 Fan Motor 150121081 1 22 Electric Box Cover 22242030 1 23 4 bit Terminal Board 42011233 1 24 Electric Box Cover 201220061 ...

Page 232: ...DC INVERTER MULTI VRF MAINTENANCE 229 6 GMV L R36G NaC K GMV L R45G NaC K ...

Page 233: ...253 1 11 Screw Cap 24252007 3 12 Filter 11122440 2 13 Remote Control Y512 305125063 1 14 Display Board 30545558 1 15 Front Panel 20002524 1 16 Lower Guide Louver 26112043 1 17 Upper Guide Louver 26112042 1 18 Stepping Motor 15212105 1 19 Motor Right Clamp 26112429 1 20 Motor FN22G 150120623 1 21 Electric Box Cover 22242017 1 22 4 bit Terminal Board 42011233 1 23 Covering Plate 20102119 1 24 Electr...

Page 234: ...DC INVERTER MULTI VRF MAINTENANCE 231 5 2 4 Floor Ceiling Type Unit 1 GMV L R28Zd Na K GMV L R36Zd Na K GMV L R50Zd Na K ...

Page 235: ...de Foam sub assy 12312404 1 17 Right Fixing Plate 01332404 1 18 Right Decoration Panel 26112027 1 19 Pipe Clamp Plate 0107243701 1 20 Capacitor 1uF 500V 33010089 1 21 Transformer 57X25C 43110237 1 22 Electric Box 01402407 1 23 Main PCB Z6935 30226903 1 24 Terminal Board RS9413G 42011159 1 25 Wire Base 24253001 1 Wire Clamp 24253002 1 26 Fuse 5A 250VAC 46010013 1 27 Cover of Electric Box 01412408 1...

Page 236: ...ll 22202032 2 53 Front Snail Shell 22202031 2 54 Bar Clasp 70819522 4 55 Hoop 70819521 1 15707302 1 56 Motor 157073024 1 57 Remote Controller 305125063 1 58 Signal Cable 400103953 1 59 Fix sub assy 01324110P 1 60 EXV sub assy 07334258 1 61 EXV SPF 16D70 07334191 1 62 Magnet Coil for EXV DPF AS001A 430001087 1 63 Display Board Z63351F 30296309 1 Note 11 Evaporator Assy is only applicable to GMV L R...

Page 237: ...DC INVERTER MULTI VRF MAINTENANCE 234 2 GMV L R71Zd Na K ...

Page 238: ...uxiliary Water Tray 01272413 1 19 Pipe Clip 70812001 1 20 Drainage hose 05235433 1 21 Handle 26232001 4 22 Right Side Foam sub assy 12312407 1 23 Right Fixing Palte 01332404 1 24 Support of Motor Bearing 01792408 2 25 Fixer of Motor Support 01792409 1 26 Right Decoration Panel 26112033 1 27 Pipe Clamp 01072424 1 28 Electric Box 01402407 1 29 Wire Base 24253001 1 30 Wire Clamp 24253002 1 31 Termina...

Page 239: ... Grill Clip 1 26252002 4 56 Evaporator Assy 01024123 1 57 Cover of Evaporator 01072417 1 58 Left Decoration Panel 26112032 1 59 Left Fixing Plate 01332405 1 60 Left Side Foam sub assy 12312406 1 61 Bearing Fixing Plate 01332407 1 62 Rear Side Plate of Air Outlet 01302405 1 63 Connecting Lever 10582008 3 64 Connecting Lever 10582009 2 65 Swing Louver 10512028 22 66 Signal Cable 400103953 1 67 EXV s...

Page 240: ...DC INVERTER MULTI VRF MAINTENANCE 237 3 GMV L R90Zd Na K GMV L R112Zd Na K GMV L R125Zd Na K ...

Page 241: ... Water Tray 0127240802 1 18 Auxiliary Water Tray 01272409 1 19 Pipe Clip 70812001 1 20 Drainage hose 05235433 1 21 Handle 26232001 4 22 Right Side Foam sub assy 12312404 1 23 Right Fixing Palte 01332404 1 24 Support of Motor Bearing 01792408 2 25 Fixer of Motor Support 01792407 1 26 Right Decoration Panel 26112027 1 27 Pipe Clamp 01072425 1 28 Electric Box 01402407 1 29 Wire Base 24253001 1 30 Wir...

Page 242: ...t Decoration Panel 26112028 1 59 Left Fixing Plate 01332405 1 60 Left Side Foam sub assy 12312403 1 61 Bearing Fixing Plate 01332406 1 62 Rear Side Plate of Air Outlet 01302416 1 63 Connecting Lever 10582008 2 64 Connecting Lever 10582009 4 65 Swing Louver 10512027 26 66 Signal Cable 400103953 1 67 Display Board Z63351F 30296309 1 68 EXV sub assy 07334256 1 69 EXV VPF 25D B3 07334195 1 70 Magnet C...

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