Gree GRS-S16/Na-M Service Manual Download Page 37

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HEAT PUMP WATER HEATER (NORTHERN EUROPE) MAINTENANCE

cover.

Remove

all

pressure

switches and temp. sensor.

（

See

Fig.12

）

(6)Remove compressor and

gas-liquid separator

Remove the connection wire of

compressor

。（

See Fig.13

）

welding out the suction pipe and

discharge pipe.

（

See Fig.13

）

Loosen the bolts fixing the compressor

and Remove the compressor and

gas-liquid separator.

Fig.12

Compressor Gas-liquid separator

Fig.13

(7)Remove gas and liquid

valve

Summary of Contents for GRS-S16/Na-M

Page 1: ...Heat Pump Water Heater Northern Europe Service Manual GREE ELECTRIC APPLIANCES INC OF ZHUHAI ...

Page 2: ...on 11 3 3 Installation 14 4 CONTROL WIRING DESIGN 16 UNITS INSTALLATION 18 1 UNITS INSTALL 18 1 1 Installation Positions 18 1 2 Matters need Attention 18 1 3 Dimension Date 18 1 4 Installation Clearance Date 19 2 ELECTRIC WIRING WORK 21 2 1 Wiring Principle 21 2 2 Electric Wiring Design 21 2 3 Specification of Power Supply Wire and Air Switch 22 UNITS MAINTENANCE 24 1 ERROR CODE LIST 24 2 FLOW CHA...

Page 3: ...GREE COMMERCIAL AIR CONDITIONERS HEAT PUMP WATER HEATER NORTHERN EUROPE 1 PRODUCT ...

Page 4: ...T 2 RODUCT INTRODUCTION 1 MODELS LIST Model Refrigerant Model Name Nominal Capacity kW Power Supply V Ph Hz Appearance KFRS 9 Na M 9 0 R410A GRS S16 Na M O 16 380 415V 3Ph 50Hz Note 1Ton 12000Btu h 3 517kW 2 NOMENCLATURE K F RS 9 Na M 1 2 3 4 5 6 ...

Page 5: ...cription Options 1 GREE 2 Heat Pump Water Heater 3 Static S Static C Circulating 4 Heating Capacity 16KW 5 Refrigerant Na R410A Default R22 6 Voltage M 380 415V 3Ph 50Hz 7 Outdoor Unit O Outdoor Unit I Indoor Unit 3 FUNCTION Function Description Heating Memory restart High efficiency and energy saving Environmentally friendly Healthy and comfortable Friendly man machine interface Easy installation...

Page 6: ... over current protection lose of phase anti phase protection antifreeze protection Type R410A Refrigerant Charge kg 3 3 4 5 Type scroll Compressor NO 1 1 Heat Exchanger Aluminum fin copper tube Liquid mm 1 2 1 2 Evaporator Connection Pipe Gas mm 3 4 3 4 Height mm 840 985 1250 1405 Width mm 1018 1110 1032 1110 Unit Packing Dimension Depth mm 412 450 412 450 Net Gross Weights kg 90 100 132 145 NOTE ...

Page 7: ... Compressor Outdoor Total Model Rated Power Supply NO LRA each A MRC each A NO MRC A MRC A NRC A KFRS 9 Na M 1 48 10 8 1 1 5 12 3 8 2 GRS S16 Na M O 380 415V 3Ph 50Hz 1 74 15 0 2 2 19 5 12 0 Notes LRA Locked rotor amps A MRC Maximum running current A NRC Nominal running current A ...

Page 8: ...ERN EUROPE PRODUCT 6 5 PIPING DIAGRAM Hot water City water Thermal expansion valve Liquid gas separator Low pressure switch Compressor High pressure switch Water tank Four way valve Aluminumfin copper tube coil High pressure tank ...

Page 9: ...GREE COMMERCIAL AIR CONDITIONERS HEAT PUMP WATER HEATER NORTHERN EUROPE 7 CONTROL ...

Page 10: ...GREE COMMERCIAL AIR CONDITIONERS HEAT PUMP WATER HEATER NORTHERN EUROPE 8 UNITS CONTROL 1 OPERATION FLOWCHART ...

Page 11: ...HEAT PUMP WATER HEATER NORTHERN EUROPE INSTALLATION 9 ...

Page 12: ... stop and turn off all loads The fans of outdoor unit will stop after 15s Turn on Fan 1 Compressor Turn off Four way Valve 15S Fan 2 When it is turned off 15S 5S 30S When it is turned off 2 2 Defrosting Mode The condition of start defrosting mode Under heating mode if the accumulative running time of compressor is over the set interval time of defrosting default 45min and the defrosting temperatur...

Page 13: ...ing mode if the continual defrosting time is over the set continual time of defrosting default 8min and the defrosting temperature is over the set stopping temperature default 20 the unit will restart running heating mode and the 4 way valve will turn on and the outdoor fan will run 3 WIRED CONTROLLER 3 1 Dimension 3 2 Function 3 2 1 Operation View ...

Page 14: ...s parameter setting 3 Increasing button To increase present set value or change set check object 4 Decreasing button To decrease present set value or change set check object 5 QUIT button Under Set and Check mode press it once to quit this mode Under parameter set mode this set value would not be saved Press this button for long about 5s to set sound and make sound switches between always on and a...

Page 15: ...cking object Press QUIT to quit from the check mode 3 2 2 Display View NO Name Function description 1 Running mode display heating mode 2 Temp display It shows temperature value displays at main display area 3 Auxiliary display area It contains 2 numbers and a comma for showing temperature and number of parameter at main display area It only displays when under Check mode and Parameter checking mo...

Page 16: ...s of pressing the button it quit back to normal state display automatically Auto antifreeze operation display only for heat pump unit When auto antifreeze function is started and relevant conditions are satisfied unit begins auto antifreeze operation At this time LCD main display area displays code d2 if there is error it displays error code 3 3 Installation First select an installation position A...

Page 17: ...ttom plate The plate s side with two notches must be at the lower position and otherwise the panel of the wire controller cannot be correctly installed PVC pi pe Fig6 Surface Mounting of Cable Fig7 Concealed mounting of Cable 1 3 2 4 Fig 8 Schematic Diagram of Installation No Name 1 Wall Surface 2 Bottom Plate of Wire Controller 3 Screw M4X10 4 Panel of Wire Controller ...

Page 18: ...er vapor 4 CONTROL WIRING DESIGN WIRED CONTROLLER Manual Unit Controller Outdoor Unit Controller CN1 CN2 J1 X17 twisted pair twisted pair The controllers of the unit include manual controller wired controller and outdoor unit controller The wired controller communications with manual controller and outdoor unit controller in RS485 The wired controller connects manual controller with 4 line twisted...

Page 19: ...HEAT PUMP WATER HEATER NORTHERN EUROPE INSTALLATION 17 INSTALLATION ...

Page 20: ...te for servicing The space around the unit allows for sufficient air circulation There is no danger of fire due to leakage of flammable gas All piping lengths and distances have been taken into consideration 1 2 Matters need Attention At delivery the unit should be checked and any damage should be reported immediately to the carrier claims agent 1 3 Dimension Date KFRS 9 Na M 950 340 840 378 412 5...

Page 21: ...HEAT PUMP WATER HEATER NORTHERN EUROPE INSTALLATION 19 GRS S16 Na M O Unit mm 1 4 Installation Clearance Date L3 L2 L4 L1 air inlet air outlet ...

Page 22: ...HEAT PUMP WATER HEATER NORTHERN EUROPE INSTALLATION 20 unit mm demonstration L1 L2 L3 L4 distance 500 1000 500 500 ...

Page 23: ...mark means conglutination between contacts in which case it should be replaced after cutting off its power supply General principles Wires equipment and connectors 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 on the site Before connection work is started ...

Page 24: ... working temperature can not be higher than limited value If the length of power supply wire is longer than 15meters do please increase the section area to avoid any accident due to over load If the supply cord is damaged it must be replaced by the manufacturer or its service agent or a similar qualified person in order to avoid a hazard The appliance shall be installed according to national regul...

Page 25: ...HEAT PUMP WATER HEATER NORTHERN EUROPE MAINTENANCE 23 MAINTENANCE ...

Page 26: ... system is excessive Press ON OFF key to clear E8 Fan 1 overload protection Mainboard of outdoor unit is damaged The wire connecting the wiring terminals of the mainboard breaks Press ON OFF key to clear b8 Fan 2 overload protection Mainboard of outdoor unit is damaged The wire connecting the wiring terminals of the mainboard breaks Press ON OFF key to clear F3 Defrost temp sensor failure The plug...

Page 27: ...er in the tank is enough Check if the installation of tank temp sensor is correct Check if the thermal expansion valve can work normally Install rightly the tank temp sensor NO YES NO YES NO YES NO Check if the gas valve and liquid valve are fully open Fill the tank with the water Fully open the valve Replace the thermal expansion valve 2 Comp Low pressure Protection E3 ...

Page 28: ...HEAT PUMP WATER HEATER NORTHERN EUROPE MAINTENANCE 26 3 Comp Discharge Temp Protection E4 ...

Page 29: ...HEAT PUMP WATER HEATER NORTHERN EUROPE MAINTENANCE 27 4 Comp Overload Protection E5 ...

Page 30: ...HEAT PUMP WATER HEATER NORTHERN EUROPE MAINTENANCE 28 5 Fan 1 Overload Protection E8 6 Fan 2 Overload Protection b8 ...

Page 31: ...HEAT PUMP WATER HEATER NORTHERN EUROPE MAINTENANCE 29 7 Temperature Sensor Error F3 F5 F7 8 Communication Malfunction EC ...

Page 32: ...d Measure if the Communication line is through Check if the outdoor unit is electrically powered Replace the communication line NO YES NO YES NO YES NO Check if the communication line of the unit is connected correctly Check the orientation of plug and socket Check the orientation of plug and socket Please supply power to the outdoor unit ...

Page 33: ... Please first cut off the power and drain let the Freon out of the unit Operation Procedure Illustration 1 Remove the front case 1 Remove the panel Loosen the two tapping screws fixing the front grill Pull down and remove the front grill See Fig 2 2 Remove the cover Loosen the two tapping screws fixing the cover Remove the cover See Fig Fig 1 Fig 2 Fig 3 ...

Page 34: ...AINTENANCE 32 3 Remove the front plate Loosen the two tapping screws fixing the front plate Remove the front plate See Fig 5 4 Remove the grill Loosen the two tapping screws fixing the grill Remove the grill See Fig 6 grill Fig 4 Fig 5 Fig 6 ...

Page 35: ...ial fan Loosen the ball nuts fixing the axial fan and remove the washer See Fig 7 Pull outward to remove the impeller See Fig 7 3 Remove the motor Loosen the screws fixing the motor support Remove the motor support See Fig 8 Fig 9 Ball Nut Fig 7 Motor support Fig 8 Fig 9 ...

Page 36: ...the hole 4 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 Welding out the tubes connected 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 hurt Fig 10 Fig 11 5 Remove electric box Loosen the screws fixing the box ...

Page 37: ...Remove compressor and gas liquid separator Remove the connection wire of compressor See Fig 13 welding out the suction pipe and discharge pipe See Fig 13 Loosen the bolts fixing the compressor and Remove the compressor and gas liquid separator Fig 12 Compressor Gas liquid separator Fig 13 7 Remove gas and liquid valve ...

Page 38: ...14 Note When welding the valve should be covered by wet cloth in order to avoid the high temp hurt 2 Remove liquid valve Loosen the bolts fixing the liquid valve welding out the pipe connected to the liquid valve See Fig 15 Note When welding the valve should be covered by wet cloth in order to avoid the high temp hurt Bolts Gas valve Fig 14 Bolts Liquid valve Fig 15 ...

Page 39: ...y 01282235 1 4 Wooden Package Base 501154042 1 5 Compressor and Fittings 00205208 1 6 Cabinet 01435103 1 7 Front Grill 22265401 1 8 Condenser Inlet Pipe 04655706 1 9 Fan Motor 150154011 1 10 Axial Flow Fan 10335401 1 11 Motor Support Sub Assy 01705402 1 12 Top Cover 01255402 1 13 Electric Box Sub Assy 01392129 1 14 Clapboard Assy 01242214 1 15 Condenser Assy 01122216 1 16 4 way Valve Sub Assy 0414...

Page 40: ...y 01312232 1 24 Rear Side Plate Sub Assy 01305402 1 25 Capacitor CBB61 33010013 1 26 Main Board 30221602 1 27 Terminal Board 42011043 1 28 Terminal Board 42011103 2 29 Capacitor CBB65 3300002232 1 30 Transformer 43110240 1 31 AC Contactor 44010226 1 4 2 Double Fan Exploded views No Name of part Part code Quantity 1 Rear Side Plate Sub Assy 01312815P 1 2 Valve Support Sub Assy 01715001 1 3 4 way Va...

Page 41: ...430 1 10 Handle 26235253 3 11 Axial Flow Fan 10338731 1 12 Fan Motor 150154513 1 13 Motor Support Sub Assy 01705471 1 14 Front Grill 22414102 1 15 Cabinet 01435436 1 16 Top Cover 01255262 1 17 Condenser Assy 01122808 1 18 Inhalation Tube Sub Assy 04672820 1 19 Electric Box Assy 01393734 1 20 Upper Insulation Plate Sub Assy 01242802 1 21 Gas liquid Separator Sub Assy 07225018 1 22 Lower Insulation ...

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