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Table of Contents
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Summary of Contents for Gree GWH18QD-K3DNA1G
- Page 1 Change for Life Service Manual GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI...
- Page 9 220V Conditions 220V Indoor: DB27°C/WB19°C Outdoor: DB35°C/WB24°C Indoor air flow: High Pipe length: 5m 230V 230V 240V Conditions Indoor: DB20°C/WB15°C 240V Outdoor: DB7°C/WB6°C Indoor air flow: High Pipe length: 5m 10 20 30 40 50 60 70 80 90 100 Compressor speed (rps) Compressor speed (rps) Conditions...
- Page 10 Indoor side noise when blowing Outdoor side noise when blowing Super High Middle High Compressor frequency(Hz) Indoor fan motor rotating speed...
- Page 11 Φ55 Φ55 Φ70 Φ70 Unit:mm Model 1078...
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Page 13: Indoor Unit
Indoor unit Outdoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Suction Accumlator exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Electric Capillary Strainer expand valve COOLING HEATING Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve... - Page 15 Please don't touch any terminal when the voltage of terminal P(DC+) and N(DC-) at AP1 is higher than 30V to prevent the risk of electric shock !
- Page 16 Please don't touch any terminal when the voltage of terminal P(DC+) and N(DC-) at AP1 is higher than 30V to prevent the risk of electric shock ! Please don't touch any electronic component or terminal when the machine is running , stopping or has been powered off for less than 30 minutes to prevent the risk of electric shock !
- Page 17 Please don't touch any electronic component or terminal when the machine is running , stopping or has been powered off for less than 30 minutes to prevent the risk of electric shock !
- Page 22 Auto...
- Page 36 Space to the wall Space to the wall At least 15cm At least 15cm Drainage pipe...
- Page 37 Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install wall-mounting Install the support of outdoor unit (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Fix outdoor unit...
- Page 39 Rear left Right Wall Wall Left Right Level meter Mark in the middle of it Space Space to the to the wall wall above above Cut off 150mm 150mm the hole Right Left Φ55mm Φ55mm Rear piping hole Rear piping hole Wall Wall Level meter...
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Page 40: Outlet Pipe
Drain hose Outlet pipe Tape Drain hose Outlet pipe Drain hose Insulating pipe Screw Panel Indoor and outdoor power cord Indoor unit Wiring cover pipe Liquid pipe Band Drain hose Cable-cross hole Drain hose Connection pipe Band Power connection wire Indoor power cord blue black brown yellow-... - Page 41 Indoor Outdoor Wall pipe Sealing gum Upper hook Liquid pipe Pipe joint Liquid gas pipe Lower hook of valve wall-mounting frame Union nut gas valve Handle N(1) yellow- green blue black brown brown blue POWER yellow- green Connect to indoor unit Drain vent Chassis Note: the wiring connect is for reference only,...
- Page 42 The drain hos can't raise upwards Wall U-shaped curve Drain hose The drain hose can't be fluctuant The water outlet can't be placed The drain hose in water can't be fluctuant The water outlet can't be fluctuant Liquid valve Piezometer Gas valve Valve cap Refrigerant charging...
- Page 45 Troubleshooting for F1,F2 malfunction the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? Insert the temperature sensor tightly Is malfunction eliminated Is there short circuit due to trip - over of the parts? Make the parts upright Is malfunction eliminated Is the...
- Page 46 Troubleshooting for H6 malfunction Stir the blade with a tool to see whether the blade rotates smoothly Tighten the screw; reassemble the blade, motor and shaft bearing rubber base sub-assy to make sure there is no foreign object between them Is malfunction eliminated Check if the connection of PG...
- Page 47 Troubleshooting for C5 malfunction Appearance of Is there jumper cap on the the jumper cap mainboard ? Assemble the jumper cap with the same model Is malfunction eliminated the jumper cap inserted correctly and tightly ? Insert the jumper cap tightly Is malfunction eliminated...
- Page 48 Troubleshooting for E6 malfunction Disconnect power and check if the connection wire of indoor and outdoor units and the built-in wire of electric box are correctly connected. Connect the wire properly according Is malfunction Correct connection? to the wiring eliminated? diagram.
- Page 49 Troubleshooting for U8 malfunction Re-energize1 minute after de-erergization The unit returns to normal. Conclusion:U8 is displayed due U8 is still to instant energization afte de- displayed energization while the capacitor discharges slowly. The zero-cross detection circuit of the mainboard is defined abnormal.Replace the mainboard with the same model...
- Page 60 Troubleshooting for E5 malfunction Is the supply voltage unstable Normal fluctuation is within 10 % of the rated Malfunction is with big fluctuation? voltage on the nameplate eliminated Is the supply voltage too low Malfunction is Adjust the supply voltage to maintain it within Malfunction is with overload? eliminated...
- Page 71 Step Procedure Front panel Open the front panel. Push the left and from the groove on the front case. Then Front case one. Groove 2. Remove horizontal louver Push out the axile bush on horizontal louver. Bend the horizontal louver with hand and then separate the horizontal louver from the crankshaft of step motor to remove it.
- Page 72 Step Procedure 4. Remove electric box cover 2 Screw Remove the screws on the electric box cover to remove the electric box cover 2. Electric box cover 2 5. Remove front case sub-assy Screws Note: 1.Open the screw caps before removing the screws around the air outlet.
- Page 73 Indoor tube temperature s ensor Cut off the wire binder and pull out the indoor tube temperature sensor. Screw off one grounding screw. Main Remove the wiring terminals of motor and board stepping motor. Remove the electric box assy. G rounding Screw off the screws that are locking each s c rew Wi ring...
- Page 74 G roove R ear case ass y First remove the left side of evaporator from the groove on the rear case assy. Then remove the right side from the clasp on the C lasp rear case assy.
- Page 78 grounding wire retainer （２） high and low pressure switch Terminal of Terminal of 4-way valve compressor Terminal of overload outdoor fan protection Terminal of temperature sensor circlip PFC induction Terminal of wire compressor wire...
- Page 79 screws electric box assy electric box clasp(right) cover clasp(left) screws screws screws screws screws screws...
- Page 80 sticking stripe soundproof sponge...
- Page 84 Pipe Pipe cutter Leaning Uneven Burr Pipe Shaper Downwards Union pipe Pipe Hard mold Expander Pipe Smooth surface Improper expanding damaged leaning crack uneven surface thickness The length is equal...
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Page 88: Gree Electric Appliances,Inc.of Zhuhai
GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI Add: West Jinji Rd, Qianshan, Zhuhai, Guangdong, China 519070 Tel: (+86-756) 8522218 Fax: (+86-756) 8669426 Email: gree@gree.com.cn Http://www.gree.com HONG KONG GREE ELECTRIC APPLIANCES SALES LIMITED Add: Unit 2612,26/F.,Miramar Tower 132 Nathan Road,TST,Kowloon,HK Tel: (852) 31658898 Fax: (852) 31651029...
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