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Gree SXVD200LCJ/A-K, Service Manual

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Gree SXVD200LCJ/A-K Service Manual Download Page 16

AIR-TO-WATER HEAT PUMP                                                                                                                  CONTROL 

 

12

UNITS CONTROL 

1 OPERATION FLOWCHART 

 

2 MAIN LOGIC 

2.1 Defrosting Mode 

2.1.1 The condition of start defrosting mode: 

Under heating mode or water heating mode, if the accumulative running time of 

compressor is over the set interval time of defrosting

（

default 50min

），

and the defrosting 

temperature(outdoor unit heat exchanger temperature) is lower than the set starting 

temperature(default -4

℃

) ,the unit will start running defrosting, and the 4-way valve will 

shut off and the outdoor fan will stop 

 

Summary of Contents for SXVD200LCJ/A-K

Page 1: ...Air to Water Heat Pump Service Manual T1 R410A 50Hz GREE ELECTRIC APPLIANCES INC OF ZHUHAI...

Page 2: ...of Fan 13 2 5 Control of Compressor 13 2 6 Control of Electric Expansion Valve 13 3 WIRED CONTROLLER 14 3 1 Dimension 14 3 2 Function 14 3 3Installation 62 4 CONTROLWIRING DESIGN 64 INSTALLATION 65 1...

Page 3: ...GREE COMMERCIAL AIR CONDITIONERS AIR TO WATER HEAT PUMP PRODUCT...

Page 4: ...rance Refrigerant Model Name kW V Ph Hz Outdoor Unit Indoor Unit GRS CQ6 0Pd Na K 6 2 GRS CQ8 0Pd Na K 8 5 GRS CQ10Pd Na K 10 GRS CQ12Pd Na K 12 GRS CQ14Pd Na K 14 GRS CQ16Pd Na K 16 220 240V 1Ph 50Hz...

Page 5: ...D300LCJ2 A K 300 SXVD300LCJ2 A M 300 2 NOMENCLATURE 2 1 Main Unit G RS C Q 16 Pd Na K I 1 2 3 4 5 6 7 8 9 NO Description Options 1 GREE Air to water heat pump 2 Heat Pump Water Heater 3 Heating Mode c...

Page 6: ...water absorbs heat and its temperature increases while the refrigerant releases heat and is condensed With the help of wired controller the outflow temperature can meet the user s requirement Through...

Page 7: ...it stops while the e heater of water tank runs When the setting temperature or water tank is reached the e heater will stop running 3 7 Quick Water Heating In quick water heating mode the unit runs ac...

Page 8: ...0 4 5 4 20 Heating Fan coil or Radiator kW 5 5 8 0 9 0 11 5 13 Capacity 2 Cooling for Fan coil kW 4 6 5 8 0 10 11 Heating Fan coil or Radiator kW 1 8 2 65 2 90 3 35 3 88 Power Input2 Cooling for Fan c...

Page 9: ...5 Type R410A R410A R410A R410A Refrigerant Charge g 3500 3500 3500 3300 Sanitary water Temperature 40 80 40 80 40 80 40 80 Sound Pressure Level dB A 59 59 62 62 Gas Piping Connection mm 15 9 15 9 15 9...

Page 10: ...Heating FCU 25 55 High Temperature Cycle Operation Range Outflow water temp Heating Floor 25 45 Low Temperature Cycle Type Water cooled Nr of speed 3 Power input W 200 pump Water flow limit LPM 7 5 V...

Page 11: ...igh Temperature Cycle Operation Range Outflow water temp Heating Floor 25 45 Low Temperature Cycle Type Water cooled Nr of speed 3 Power input W 200 pump Water flow limit LPM 7 5 Volume Liter 10 Water...

Page 12: ...DN20 DN20 Outer diameter inch 3 4 3 4 Circulation Water Inlet O utlet Pipe Screw thread spec 3 4 Female BSP 3 4 Female BSP mm DN20 Outer diameter inch 3 4 Water Inlet Outlet He at Pump Pipe Screw thr...

Page 13: ...r core cable and copper connectors must be used for power cable connection Leakage Switch is necessary for additional installation If circuit breakers with leakage protection are in use action respons...

Page 14: ...alve 8 pump 12 3 way valve t R1T R3T t R5T t R4T t t R2T 9 t R6T t R7T R7T water tank temperature sensor 2 R5T leaving water temperature sensor R2T Liquid line temperature sensor R1T plate outlet temp...

Page 15: ...GREE COMMERCIAL AIR CONDITIONERS AIR TO WATER HEAT PUMP CONTROL...

Page 16: ...g mode or water heating mode if the accumulative running time of compressor is over the set interval time of defrosting default 50min and the defrosting temperature outdoor unit heat exchanger tempera...

Page 17: ...rated by defrosting from freezing in chassis which will incur malfunction of drainage the heating tape is installed in chassis If the ambient temperature is lower than 0 when the compressor operates e...

Page 18: ...EAT PUMP CONTROL 14 Electric expansion valve will not be adjusted within 3 min after the unit operates 3 WIRED CONTROLLER 3 1 Dimension 3 2 Function 3 2 1 Operation View 18 1 2 3 4 5 6 7 8 9 10 11 12...

Page 19: ...n Press this button to decrease the parameter winking Set button Press the button to save parameter or enter the next menu Return button Press this button to return to the previous menu Clock setting...

Page 20: ...some temperature value Trouble This icon indicates that trouble is occurred Defrosting This icon indicates that the defrost mode is active 24 hours timer This icon indicates that you are setting 24 h...

Page 21: ...con or Cool mode icon will display Press button again to exit Heat or Cool mode If there is water tank press button and the sanitary heating mode will act The sanitary heating mode icon will show Pres...

Page 22: ...perate The silent mode icon will show Press button again and the silent mode will stop 5 If there is error and the compressor have stopped for over 3 minutes press button or button for 5 seconds to en...

Page 23: ...nction of the first sanitary water tank temperature sensor the urgent sanitary heating model is not available 3 2 3 3 Parameter Setting 1 Press button to enter user function setting menu Icon will sho...

Page 24: ...AIR TO WATER HEAT PUMP CONTROL 20 3 Press button to enter function parameter setting mode The function parameter is flashing 4 Press button to adjust parameters...

Page 25: ...AIR TO WATER HEAT PUMP CONTROL 21 5 Press button to save the desired parameter 6 Repeat step 2 to 5 to set other function parameters Press button or button to return the main menu...

Page 26: ...0 priority to cooling 1 priority to water tank heating 0 1 default 0 9 Setting priority when under heating demand and sanitary water heating demand are required at the same time 0 priority to heating...

Page 27: ...ription z Function code 1 Setting temperature selection The unit can operate according to air temperature or outflow water temperature The air temperature or outflow water temperature can be selected...

Page 28: ...water tank should be turned on With code 5 set as 0 and sanitary heating ON if the water tank temperature is below maximum water tank temperature only the heat pump will operate If the water tank tem...

Page 29: ...ting is stopped the heat pump will turn to space heating z Function code 10 Setting status of back up heater indoor unit If code 10 is set as 1 half capacity of back up heater in the indoor unit can b...

Page 30: ...ar system is connected to the tank this tank must be two coil one for heat pump and the other for other thermal equipment z Function code 17 FCU equipment If code 17 is set as 0 there is no FCU FAN CO...

Page 31: ...ample If Value is set as 50 If the target water tank temperature is 60 and when the current water tank temperature is below 50 the water tank is heated by heat pump When current water tank temperature...

Page 32: ...e 27 Setting temperature gap from target temperature of sanitary heating operation Set the temperature gap from target water tank temperature in sanitary heating mode 3 2 3 5 Set engineer function par...

Page 33: ...ion parameter Code Function description Detail Range 1 Setting interval of defrost mode 30 60minute default 50 2 Setting duration of defrost mode 1 15minute default 10 3 Setting enter temperature of p...

Page 34: ...t one target temperature room temperature outflow water temperature sanitary water tank temperature and solar outflow water temperature The setting temperature is blinking Note In heating or cooling m...

Page 35: ...In function code 19 3 Adjust desired temperature by pressing button Note Increase 1 C or 1 F for each press Decrease 1 C or 1 F for each press 4 Press button to save the setting target temperature and...

Page 36: ...temperature code The table of view temperature Temperature code Function description 1 Outer ambient temperature 2 Suction temperature 3 Discharge temperature 4 Defrost temperature 5 The temperature...

Page 37: ...ure of gas pipe inside refrigerant 13 Other thermal outlet temperature 3 Press button or button to return to the main menu The system will automatically release without any input after 20 seconds 3 2...

Page 38: ...TER HEAT PUMP CONTROL 34 2 Press button to adjust desired hour 3 Press button to save the setting hour and the system will automatically enter setting current minute mode The current setting minute is...

Page 39: ...ATER HEAT PUMP CONTROL 35 4 Press button to adjust desired minute 5 Press button to save the setting minute and the system will automatically enter setting current day mode The current setting day is...

Page 40: ...TO WATER HEAT PUMP CONTROL 36 6 Press button to adjust desired day 7 Press button to save the setting day and the system will automatically return to main menu The current time has been set successfu...

Page 41: ...decrease reservation 1 Press repeatedly button to select setting 24 hour reservation or 24 hour decrease reservation 24 hour reservation icon or 24 hour decrease reservation icon will show The defaul...

Page 42: ...nitary heating mode 3 Press button to save the operation mode of the 24 hour reservation or 24 hour decrease reservation The system will automatically enter selecting ON OFF of the 24 hour reservation...

Page 43: ...or 24 hour decrease reservation on mode or off mode 5 Press button to save ON OFF mode of the 24 hour reservation or 24 hour decrease reservation and the system will automatically enter next step If O...

Page 44: ...24 hour reservation or 24 hour decrease reservation 7 Press button to save the target temperature of the 24 hour reservation or 24 hour decrease reservation and system will automatically enter the in...

Page 45: ...hour reservation or 24 hour decrease reservation 9 Press button to save the hour of the 24 hour reservation or 24 hour decrease reservation and the system will automatically enter the interface of ad...

Page 46: ...reservation 11 Press button to save the minute of the 24 hour reservation or 24 hour decrease reservation and the system will automatically return to main menu 24 hour reservation or 24 hour decrease...

Page 47: ...rature of the weekly reservation and the system will automatically enter selecting day of the weekly reservation The day selected is flashing 6 Press button to select one day of the weekly reservation...

Page 48: ...day or press button to return to step 7 17 Repeat steps 6 to 15 to program other day of weekly reservation or press button to return to the main menu The weekly reservation has been set successfully...

Page 49: ...any response if there is no timing Hour timing ON or OFF indicates relevant icon the numbers indicate at what time the unit will be turned on or off automatically Press Return or Esc menu to exit curr...

Page 50: ...ER HEAT PUMP CONTROL 46 Weekly timing indicates relevant icon Press or button to check which weekday were set The selected weekday flashes Press Set to view the set time Press or to view the next sett...

Page 51: ...off the unit automatically Press Return or Esc menu to exit current timing menu and return to the main menu If there is no operation in 20 seconds the system will exit current setting menu automatical...

Page 52: ...3 Press button for 5 seconds again to exit this 3 2 3 11 Timing Silent When the wired controller shows the main interface press Timer set Silent button for 5 seconds to enter timer silent interface T...

Page 53: ...Timer Silent 1 Press and button to adjust starting hour Press Set button to save the adjustment and set starting minute 2 Press and button to adjust starting minute Press Set button to save the adjust...

Page 54: ...AIR TO WATER HEAT PUMP CONTROL 50 3 Press and button to adjust stopping hour Press Set button to save the adjustment and set stopping minute...

Page 55: ...AIR TO WATER HEAT PUMP CONTROL 51 4 Press and button to adjust stopping minute Press Set button to save the adjustment and return to main interface Then the timing silent function is set successfully...

Page 56: ...tton to save the adjustment and return to main interface But the timing silent function is not set successfully 3 2 3 12 Timing Temperature When the wired controller shows the main interface press Tim...

Page 57: ...ture mode Selection of timing temperature mode the last timing temperature mode is defaulted Heat mode is defaulted upon first energization Press and button to select timer mode including heating and...

Page 58: ...he defaulted time is 8 00 upon initial energization If the reference point is indoor temperature the defaulted temperature is 20 for cooling and 26 for heating If the reference point is outflow water...

Page 59: ...AIR TO WATER HEAT PUMP CONTROL 55 2 and to set starting minute of first period Press and button to adjust starting minute Press Set to save the adjustment...

Page 60: ...eriod Press and button to adjust temperature Press Set to save the adjustment and to set timing temperature of the second period During operation press Return or Esc button to save the set value and r...

Page 61: ...7 00 upon initial energization If the reference point is indoor temperature the defaulted temperature is 20 for cooling and 26 for heating If the reference point is outflow water temperature the defau...

Page 62: ...IR TO WATER HEAT PUMP CONTROL 58 2 Press and button to adjust starting minute Press Set to save the adjustment and to set timing temperature of the second period Press and button to adjust temperature...

Page 63: ...ER HEAT PUMP CONTROL 59 3 Press Set to save the adjustment During operation press Return or Esc button to save the set value and return to main interface The unset items are defaulted to be the last s...

Page 64: ...3 2 3 13 Set address 1 Press button to enter address viewing mode 2 Press button to enter address setting mode address is flashing 3 Press button to adjust desired address Range 0 125 127 253 4 Press...

Page 65: ...tion temperature sensor EF Malfunction of outdoor fan E5 Overload protection of compressor or malfunction of driver E1 High pressure protection of compressor E3 Low pressure protection of compressor E...

Page 66: ...ctric heater connection dU Pull out gate controller 3 2 3 15 Test Mode The test mode setting is as follow 1 Operate the wired controller to let the heating cooling operation OFF and water heating OFF...

Page 67: ...the LCD of wired controller with caution 3 After LCD is removed unplug communication line according Fig 4 4 Then remove three retaining screws on mounted plate The following disassembly methods are in...

Page 68: ...AP1 Main board Outdoor Unit Eletric box Installation Instruction 1 Wired controller connects to terminal CN6 on mainboard of indoor unit by 4 core communication line 2 The indoor unit connects to outd...

Page 69: ...GREE COMMERCIAL AIR CONDITIONERS AIR TO WATER HEAT PUMP INSTALLATION...

Page 70: ...o support the weight of air conditioner unit Drainage pipe is easy to connect out Indoor and outdoor connection pipes are easy to go outdoors Do not install at a place where flammable or explosive goo...

Page 71: ...h PPR pipe according to the following figure sealing with unsintered tape The other end of the safety check valve should connect with tap water joint Connect the hot water pipe and water outlet of wat...

Page 72: ...AIR TO WATER HEAT PUMP INSTALLATION 67 GRS CQ12Pd Na K O GRS CQ14Pd Na K O GRS CQ16Pd Na K O GRS CQ12Pd Na M O GRS CQ14Pd Na M O GRS CQ16Pd Na M O...

Page 73: ...ATER HEAT PUMP INSTALLATION 68 1 3 2 Indoor GRS CQ6 0Pd Na K I GRS CQ8 0Pd Na k I GRS CQ10Pd Na K I GRS CQ12Pd Na K I GRS CQ14Pd Na K I GRS CQ16Pd Na K I GRS CQ12Pd Na M I GRS CQ14Pd Na M I GRS CQ16Pd...

Page 74: ...ER HEAT PUMP INSTALLATION 69 Install process of indoor unit Step1 Drilling hole on the wall in the following draw unit outline expansion bolt hole Step2 Releasing screws detach front cover from the in...

Page 75: ...ost 52kg Precautions on Installation of Indoor Unit Indoor unit shall be vertically mounted on the wall of the room with expansion bolt Keep the Indoor unit away from heat sources such as heat sink an...

Page 76: ...considered F i x w i t h b o l t s W a t e r t a n k I n s t a l l e d o n t h e g r o u n d a n d n e v e r s u s p e n d e d The minimum clearance from the water tank to combustible surface must be...

Page 77: ...tank must connect with a certain length of PPR pipe L 70 R2 cm R is inside radius of the pipe Moreover heat preservation should be conducted and metal pipe can not be used For the first use water tan...

Page 78: ...S2 5 series wall thickness of 4 2mm being recommended Cooling water inlet pipe and hot water outlet pipe of water tank should also be hot water pipe PPR pipe with nominal out diameter of dn20 and S2...

Page 79: ...it and insulated water tank should not exceed 5m levelly and 3m vertically If higher please contact with us Water tank on lower and main unit on higher side is recommended Prepare the materials accord...

Page 80: ...responsible for any damage due to incorrect connection of the external circuit of the unit Caution MUST use copper wires Connection of power cable to the electric cabinet of the unit Power cables sho...

Page 81: ...AIR TO WATER HEAT PUMP INSTALLATION 76...

Page 82: ...m medium minimum In most case we strongly recommended to set speed as maximum If the noise of the pump is not acceptable we recommended change the default speed to medium speed but to secure enough fl...

Page 83: ...aximum volume required in the above figure If it exceeds the range the expansion vessel does not meet the installing requirement Water volume Installation height difference 280L 280L 7 m Adjustment is...

Page 84: ...t the pre set pressure of the expansion vessel from 1 0Bar to 0 3Bar Selection of expansion valve Formula 1 2 v 1 1 1 c e p p v Volume of expansion vessel c Total water volume 1 p Pre set pressure of...

Page 85: ...compressor is not in operation charge additional R410A working fluid with specified amount to the unit through the filling opening of the liquid pipe valve of the outdoor unit Be sure to charge the sp...

Page 86: ...material and adhesive pipe for insulation from the air The joints on indoor unit and outdoor unit must be wrapped with heat preservation materials and have no clearance against the wall surface of ind...

Page 87: ...m 10m 20g m GRS CQ8 0Pd Na K 5 8 3 8 7 5m 30m 0m 15m 50g m GRS CQ10Pd Na K 5 8 3 8 7 5m 30m 0m 15m 50g m GRS CQ12Pd Na K 5 8 3 8 7 5m 30m 0m 15m 50g m GRS CQ14Pd Na K 5 8 3 8 7 5m 30m 0m 15m 50g m GRS...

Page 88: ...onnectors supplied for use on the site must be in compliance with provisions of regulations and engineering requirements Only electricians holding qualification are allowed to perform wire connection...

Page 89: ...pin 15V 5 pin control signal 6 pin feedback signal 4V 4V1 4 way valve HEAT Electric heating tape VA 1 E heater of chassis HPP High pressure switch LPP Low pressure switch OVC COMP Overload protection...

Page 90: ...OR2 DC fan 1 pin strong power supply 3 pin fan GND 4 pin 15V 5 pin control signal 6 pin feedback signal 4V1 4 way valve HEAT Electric heating tape VA 1 E heater of chassis HPP High pressure switch LPP...

Page 91: ...n GND 4 pin 15V 5 pin control signal 6 pin feedback signal 4V1 4 way valve HEAT electric heating tape VA 1 e heater of chassis HPP high pressure switch LPP low pressure switch T SENSOR2 1 2hole pipe t...

Page 92: ...ic 3 way valve1 is normally open 3V2_OFF X11 Electric magnetic 3 way valve2 is normally closed 3V2_ON X12 Electric magnetic 3 way valve2 is normally open T SENSOR1 CN10 terminal of temperature sensor1...

Page 93: ...rminal block xt3 25 26 27 28 19 20 50 Gate controller 20 19 XT2 XT2 Running indicating lamp Error indicating lamp Communication line Display board GRS CQ12Pd Na M I GRS CQ14Pd Na M I GRS CQ16Pd Na M I...

Page 94: ...AIR TO WATER HEAT PUMP INSTALLATION 89 2 3 2 Wiring Diagram Outdoor Unit GRS CQ6 0Pd Na K O GRS CQ8 0Pd Na K O GRS CQ10Pd Na K O GRS CQ12Pd Na K O GRS CQ14Pd Na K O GRS CQ16Pd Na K O...

Page 95: ...AIR TO WATER HEAT PUMP INSTALLATION 90 GRS CQ12Pd Na M O GRS CQ14Pd Na M O GRS CQ16Pd Na M O 2 3 3 Wiring Diagram Water Tank SXVD200LCJ A K SXVD200LCJ2 A K SXVD300LCJ A K SXVD300LCJ2 A K...

Page 96: ...AIR TO WATER HEAT PUMP INSTALLATION 91 SXVD200LCJ A M SXVD200LCJ2 A M SXVD300LCJ A M SXVD300LCJ2 A M W P95A R W P85A R PE PE PE PE Therm ostat1 Therm ostat2 Heater...

Page 97: ...oller If there is gate control function pull out the leading wire 50 on terminal board XT2 between19 and 20 and then connect the Gate controller Power supply for Thermostat If it is 230V AC please con...

Page 98: ...at If it is 230V AC please connect Terminal block xt3 21 22 23 24 If it is 24V AC please connect Terminal block xt3 25 26 27 28 They are can not be connected as the same time If there is gate control...

Page 99: ...erminal Board 1 power supplyfor Water tankelectricheater N 2 1 N L Connectingexternal electric power supplyfor Indoor Unit Terminal Board 2 Terminal board3 27 28 23 22 21 Thermostat 1 Thermostat 2 24...

Page 100: ...orUnit Terminal Board 2 Terminal board 3 27 28 23 22 21 Thermostat 1 Thermostat 2 24 25 26 29 30 31 power supply for water tank eletric heater 6 5 4 2wayvalue 2 2wayvalue 1 1 2 3 9 8 7 3wayvalue 1 3wa...

Page 101: ...0Pd Na K GRS CQ8 0Pd Na K GRS CQ10Pd Na K GRS CQ12Pd Na K GRS CQ14Pd Na K GRS CQ16Pd Na K N 2 1 N L CN10 External Power Supply 230V 50Hz AC L N N L Water Tank Water Tank Temp Sensor1 Water Tank Temp S...

Page 102: ...z 3N CN15 CN14 CN13 CN12 CN11 CN10 N 2 3 7 2 Way Valve 2 way valve is required to control water flow while cooling operation Role of 2way valve is to cut off water flow into under floor loop in coolin...

Page 103: ...signal for Normal Open type from PCB to 2way valve NC Line signal for Normal Closed type from PCB to 2way valve N Neutral signal from PCB to 2way valve 2 3 8 3 Way Valve 3way valve is required to oper...

Page 104: ...nd wire N OFF Line signal Water tank heating from PCB to 3way valve ON Line signal Under floor heating from PCB to 3way valve N Neutral signal from PCB to 3way valve 2 3 9 Gate controller If there is...

Page 105: ...f remote air temperature sensor Height from floor is approximately 1 5 meter Remote air temperature sensor can not be located where the area may be hidden when door is open Remote air temperature sens...

Page 106: ...nd 24V AC Thermostat at the same time otherwise it will cause short circuit and power cut off by circuit breaker 2 setting temperature by Thermostat heating or cooling should be chosen within the sett...

Page 107: ...GREE COMMERCIAL AIR CONDITIONERS AIR TO WATER HEAT PUMP MAINTENANCE...

Page 108: ...t on mainboard z The resistance of temperature sensor is not correct It will be automatically cleared after the failure is removed F5 Suction temp sensor error z The plug on temperature sensor is not...

Page 109: ...ystem has leaked z Mainboard of outdoor unit is damaged It will be cleared if the discharge temp is lower than 92 C5 Indoor capacity switch error De energize the unit and then energize it again If the...

Page 110: ...ved F1 Lliquid pipe temperature sensor Inside refrigerant error z The plug on temperature sensor is not correctly connected to the socket on mainboard z The resistance of temperature sensor is not cor...

Page 111: ...damaged z The wire of the switch is loose z The position of the switch is wrong It will be cleared after the unit is turned off E2 Indoor anti frozen protetion z The resistance of temperature sensor...

Page 112: ...ed De energize the unit and then energize it again If the malfunction is removed the code will be cleared EH second internal electric heater connection Malfunction z The AC contactor is damaged De ene...

Page 113: ...5 Sensor failure of heat sink P7 E5 Overheat protection of heat sink P8 E5 AC contactor protection P9 E5 AC current protection input side PA E5 Current sensor failure Pc E5 Connection protection of se...

Page 114: ...correct Check if the electric expansion valve can work normally Install rightly the tank temp sensor yes no yes no yes no yes Check if the gas valve and liquid valve are fully open Fill the tank with...

Page 115: ...AIR TO WATERHEATPUMP MAINTENANCE 109 2 Comp Low pressure Protection E3 3 Comp Discharge Temp Protection E4...

Page 116: ...AIR TO WATERHEATPUMP MAINTENANCE 110 4 Overload proection of compressor or driver error E5 5 Outdoor fan error EF...

Page 117: ...AIR TO WATERHEATPUMP MAINTENANCE 111 6 Temperature sensor error 7 Communication Malfunction E6...

Page 118: ...er the IPM works for 10s If the protection occurs for 6 times within one hour it can not be resumed unless it is deenergized and reenergized 5 Overcurrent protection of compressor The protection occur...

Page 119: ...ving of Single phase Unit 3 1 1 PFC Abnormality Fig 3 1 1 Flowchart of diagnosis of PFC abnormality 3 1 2 IPM Protection The reasons may be Untight screws of IPM module damaged IPM module defective ra...

Page 120: ...AIR TO WATERHEATPUMP MAINTENANCE 114 wire connection error with PFC wrong cement resistance RS1 RS3 of driving abnormal compressor interference Fig 3 1 2 Flowchart of diagnosis of IPM protection...

Page 121: ...AIR TO WATERHEATPUMP MAINTENANCE 115 3 1 3 Trip Fig 3 1 3 Flowchart of trip diagnosis...

Page 122: ...ctor Generally the continuous and minute sound of inductor is normal Abnormal noise of PFC inductor refers to discontinuous and obvious noise The reasons may be z PFC malfunction z abnormal output of...

Page 123: ...AIR TO WATERHEATPUMP MAINTENANCE 117 3 1 5 Superheat Protection of Radiating Fin Fig 3 1 5 Flowchart of diagnosis of radiator superheat protection...

Page 124: ...AIR TO WATERHEATPUMP MAINTENANCE 118 3 1 6 Overvoltage Protection of DC Bus Fig 3 1 6 Flowchart of diagnosis of DC bus overvoltage protection...

Page 125: ...AIR TO WATERHEATPUMP MAINTENANCE 119 3 1 7 Under voltage Protection of DC bus Fig 3 1 7 Flowchart of diagnosis of DC bus under voltage...

Page 126: ...AIR TO WATERHEATPUMP MAINTENANCE 120 3 2 Diagnosis Flowchart of Driving of Three phase Unit 3 2 1 IPM Module Protection Fig 3 2 1 Flowchart of diagnosis of IPM Module Protection...

Page 127: ...place P and the red one on the wiring terminal U V W respectively as shown in the following figure to measure the voltage between UP VP and WP Step 2 put the red probe on the place N and the black on...

Page 128: ...AIR TO WATERHEATPUMP MAINTENANCE 122 3 2 2 Radiator Overheating Protection Fig 3 2 2 Flowchart of diagnosis of Radiator Overheating Protection...

Page 129: ...AIR TO WATERHEATPUMP MAINTENANCE 123 3 2 3 Tripping Fig 3 2 3 Flowchart of diagnosis of Tripping...

Page 130: ...AIR TO WATERHEATPUMP MAINTENANCE 124 3 2 4 DC Bus Low Voltage Protection Fig 3 2 4 Flowchart of diagnosis of DC Bus Low Voltage Protection...

Page 131: ...AIR TO WATERHEATPUMP MAINTENANCE 125 3 2 5 DC Bus High Voltage Protection Fig 3 2 5 Flowchart of diagnosis of DC Bus High Voltage Protection...

Page 132: ...ff for 1 minute Open Phase LD Monitor Display Main Board 88 Indicating Lamp Yes No Record and report the actual condition Connect wires reliably If the terminal wiring of the compressor is reliable Re...

Page 133: ...if the error is eliminated after the main board of the indoor unit is replaced Check if the connection of the communication line between the indoor and outdoor units are in good condition Check if the...

Page 134: ...lease first cut off the power and discharge the Freon out of the unit Operation Procedure Illustration OutdooUnit GRS CQ6 0Pd Na K O GRS CQ8 0Pd Na k O GRS CQ10Pd Na K O 1 Remove the cover front side...

Page 135: ...AIR TO WATERHEATPUMP MAINTENANCE 129 2 Remove the Cabinet Loosen the two tapping screws and remove the Cabinet See Fig 3 Fig 3 Fig 4...

Page 136: ...PUMP MAINTENANCE 130 3 Remove right side plate Loosen the two tapping screws and remove right side plate See Fig 5 Fig 5 4 Remove the Rear Grill Loosen the two tapping screws and remove the Rear Grill...

Page 137: ...AIR TO WATERHEATPUMP MAINTENANCE 131 5 Remove the Electric Box Assy Loosen the two tapping screws and remove the Electric Box Assy See Fig 8 Fig 7 Fig 8...

Page 138: ...axial fan Loosen the ball nuts and remove the axial fan See Fig 9 Fig 9 7 Remove the motor Loosen the screws fixing the motor support Remove the motor support Loosen the wire of motor and pull it thr...

Page 139: ...onnected to the 4 way valve Remove the 4 way valve See Fig 11 Note When welding the valve should be covered by wet cloth in order to avoid the high temp damage Fig 11 Remove gas valve Loosen the bolts...

Page 140: ...Fig 13 Note When welding the valve should be covered by wet cloth in order to avoid the high temp damage Fig 13 9 Remove compressor and gas liquid separator Remove the connection wire of compressor Un...

Page 141: ...O GRS CQ14Pd Na K O GRS CQ16Pd Na K O GRS CQ12Pd Na M O GRS CQ14Pd Na M O GRS CQ16Pd Na M O 1 Remove the cover front side plate l and right side plate Loosen the two tapping screws and remove the cov...

Page 142: ...AIR TO WATERHEATPUMP MAINTENANCE 136 2 Remove the Cabinet Loosen the two tapping screws and remove the Cabinet See Fig 3 Fig 3 Fig 4...

Page 143: ...MAINTENANCE 137 3 Remove the Rear Grill Loosen the two tapping screws and remove the Rear Grill See Fig 5 Fig 5 4 Remove the Electric Box Assy Loosen the two tapping screws and remove the electric box...

Page 144: ...AIR TO WATERHEATPUMP MAINTENANCE 138 Fig 8 6 Remove the axial fan Loosen the ball nuts and remove the axial fan See Fig 9 Fig 9...

Page 145: ...ough the hole Remove the motor See Fig 10 Fig 10 8 Remove the 4 way valve Remove the 4 way valve Loosen the screws fixing the coil of 4 way valve Remove the coil of 4 way valve Unsolder the tubes conn...

Page 146: ...See Fig 12 Note When welding the valve should be covered by wet cloth in order to avoid the high temp hurt Remove liquid valve Loosen the bolts fixing the liquid valve welding out the pipe connected t...

Page 147: ...compressor and gas liquid separator Remove the connection wire of compressor See Fig 13 welding out the suction pipe and discharge pipe See Fig 14 Loosen the bolts fixing the compressor and Remove th...

Page 148: ...AIR TO WATERHEATPUMP MAINTENANCE 142 Indoor Unit 1 Front panel assy Fig 2 Fig 1 Fig 2...

Page 149: ...AIR TO WATERHEATPUMP MAINTENANCE 143 2 Electric box assy Fig 3 Fig 3 3 Water pump switch and water flow switch See Fig 4 Fig 4...

Page 150: ...NTENANCE 144 4 Electric heater automatic air outlet valve and relieve valve See Fig 5 joint of pressure gauge for capillary shall be removed Fig 5 5 Expansion tank See Fig 6 Fig 6 6 Plate type heat ex...

Page 151: ...d Na K O No Name of part Part code Quantity 1 Big Handle 26235001 1 2 Valve Support Sub Assy 0171311501P 1 3 Right Side Plate 01305044P 1 4 Cut off Valve 07130239 1 5 Cut off Valve 071302392 1 6 Strai...

Page 152: ...43128003 1 27 Electric Box Cover 01425279 1 28 Electric Box Assy 01392879 1 29 Main Board 30223316 1 30 Insulated board cover of electric box 20113003 1 31 Electric Box Cover 01425281 1 32 Top Cover S...

Page 153: ...AIR TO WATERHEATPUMP MAINTENANCE 147 Exploded View of GRS CQ8 0Pd Na k O and GRS CQ10Pd Na K O...

Page 154: ...sy 01802876 1 11 Fan Motor 15702802 1 12 Axial Flow Fan 10335005 1 13 Front Side Plate 01305072P 1 14 Left Handle 26235401 2 15 Cabinet 01435004P 1 16 Front Grill 22415003 1 17 Left Side Plate 0130504...

Page 155: ...AIR TO WATERHEATPUMP MAINTENANCE 149 Exploded View of GRS CQ12Pd Na K O GRS CQ14Pd Na K O and GRS CQ16Pd Na K O...

Page 156: ...1715001 1 14 Rear Side Plate Sub Assy 01314171P 1 15 Inhalation Tube Sub Assy 4675328 1 16 Inductance 43120122 1 17 Handle 26235253 3 18 Magnet Coil 4300040029 1 19 Sensor High pressure 322101032 1 20...

Page 157: ...675328 1 3 Gas liquid Separator 07425216 1 4 Compressor support sub assy 01805295P 1 5 Chassis Sub assy 01192820P 1 6 Electrical heater Chassis 765100041 1 7 Compressor Gasket 76815204 3 8 electrical...

Page 158: ...55013P 1 33 Magnetic Ring 49010109 1 34 Condenser support sub assy 01894119 1 35 Sensor High pressure 322101032 1 36 Condenser Assy 01122820 1 37 Rear Grill 01475432 1 38 Temperature Sensor 3900028002...

Page 159: ...antity 1 Front Panel Cover 01262866 1 2 Front Panel 01542808 1 3 Electric Box Cover 01422821 1 4 Electric Box Assy 01392864 1 5 Enter Water Pipe Sub Assy 04362891 1 6 Strainer 07412808 1 7 Pipe of L s...

Page 160: ...1 19 Relief Valve 07382814 1 20 Auto Air Outlet Valve 07108208 1 21 Top cover 01262875 1 22 Enter Water Pipe Sub Assy 04362893 1 23 Water Pressure Gauge 49028009 1 24 Sensor sub assy 39008051 1 25 Te...

Page 161: ...AIR TO WATERHEATPUMP MAINTENANCE 155 Exploded View of GRS CQ8 0Pd Na K I GRS CQ10Pd Na K I GRS CQ12Pd Na K I GRS CQ14Pd Na K I and GRS CQ16Pd Na K I...

Page 162: ...Assy 4362888 1 13 Flow Switch Sub Assy 45028062 1 14 Display Board 30293301 1 15 Expansion Drum 7422804 1 16 Water Pump 43138221 1 17 Outlet Water Pipe Sub Assy 4362917 1 18 Electric Heater 32102802 1...

Page 163: ...Na M I GRS CQ16Pd Na M I No Name of part Part code Quantity 1 Front Panel Cover 01262866P 1 2 Front Panel 01542808 1 3 Electric Box Cover 01422821 1 4 Electric Box Assy 01392864 1 5 Strainer 07412808...

Page 164: ...ctric heater 32000004 1 18 Relief Valve 07382814 1 19 Auto Air Outlet Valve 07108208 1 20 Top cover 01262875 1 21 Enter Water Pipe Sub Assy 04362925 1 22 Water Pressure Gauge 49028009 1 23 Sensor sub...

Page 165: ...AIR TO WATERHEATPUMP MAINTENANCE 159 5 3 Water Tank Exploded View and Part List Exploded View of SXVD200LCJ A K SXVD200LCJ A M SXVD300LCJ A K and SXVD300LCJ A M...

Page 166: ...re Sensor 3900028302 1 22 Gasket 70412804 2 23 Temp Sensor Pipe Sub Assy 04162802 2 24 Toggle Switch Sheath 26242801 2 Parts List of SXVD200LCJ A M No Name of part Part code Quantity 1 Bottom Cover Pl...

Page 167: ...re Sensor 3900028302 1 22 Gasket 70412804 2 23 Temp Sensor Pipe Sub Assy 04162802 2 24 Toggle Switch Sheath 26242801 2 Parts List of SXVD300LCJ A M No Name of part Part code Quantity 1 Bottom Cover Pl...

Page 168: ...AIR TO WATERHEATPUMP MAINTENANCE 162 Exploded View of SXVD200LCJ2 A K SXVD200LCJ2 A M SXVD300LCJ2 A K and SXVD300LCJ2 A M...

Page 169: ...8302 1 22 Temp Sensor Pipe Sub Assy 04162802 2 23 Toggle Switch Sheath 2690282301 2 24 Toggle Switch Sheath 26242801 2 Parts List of SXVD200LCJ2 A M No Name of part Part code Quantity 1 Bottom Cover P...

Page 170: ...302 1 22 Temp Sensor Pipe Sub Assy 04162802 2 23 Toggle Switch Sheath 2690282301 2 24 Toggle Switch Sheath 26242801 2 Parts List of SXVD300LCJ2 A M No Name of part Part code Quantity 1 Bottom Cover Pl...

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