Gree GWC12KF-K3DNA5A Service Manual
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Service Manual

GWC09KF-K3DNA5A GWC12KF-K3DNA5A
MODEL:
GWH09KF-K3DNA5A GWH12KF-K3DNA5A
GWH09KF-K3DNA6A GWH12KF-K3DNA6A
GWH09KF-K3DNB1A GWH12KF-K3DNB1A
(Refrigerant R410A)
GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI

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Summary of Contents for Gree GWC12KF-K3DNA5A

  • Page 1: Service Manual

    Service Manual GWC09KF-K3DNA5A GWC12KF-K3DNA5A MODEL: GWH09KF-K3DNA5A GWH12KF-K3DNA5A GWH09KF-K3DNA6A GWH12KF-K3DNA6A GWH09KF-K3DNB1A GWH12KF-K3DNB1A (Refrigerant R410A) GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI...
  • Page 2: Table Of Contents

    Table of Contents Summary and features ..................1 Part 1 Safety Precautions ..................2 Part 2 Specifications .....................3 2.1 Unit Specifications....................3 2.2 Operation Characteristic Curve................11 2.3 CapacityVariation Ratio AccordingtoTemperature..........11 2.4 Operation Date.....................12 2.5 Noise criteria curve tables for both models............12 Part 3 Construction Views ..................13 3.1 Indoor Unit ......................13 3.2 Outdoor Unit ......................14...
  • Page 3 Table of Contents Part 7 Installation Manual ..................32 7.1 Tools Required for Installation................32 7.2 Installation Position Selection................32 7.3 Install Indoor Unit....................32 7.4 Install Outdoor Unit ....................36 7.5 Test Operation......................37 Part 8 Exploded Views and Parts List ..............38 8.1 Indoor unit......................38 8.2 Outdoor unit......................45 Part 9 Troubleshooting ....................53...
  • Page 4: Summary And Features

    Summary and features Summary and features Indoor Unit GWC09KF-K3DNA5A/I GWH09KF-K3DNA5A/I GWC12KF-K3DNA5A/I GWH12KF-K3DNA5A/I GWH09KF-K3DNA6A/I GWH12KF-K3DNA6A/I GWH09KF-K3DNB1A/I GWH12KF-K3DNB1A/I Outdoor Unit GWC09KF-K3DNA5A/O GWH09KF-K3DNA5A/O GWC12KF-K3DNA5A/O GWH12KF-K3DNA5A/O Remote control window AUTO HEALTH X-FAN HUMIDITY FILTER TURBO YB1F2 HOUR ON/OFF ON/OFF MODE X-FAN TEMP TIMER TURBO...
  • Page 5: Part 1 Safety Precautions

    Safety Precautions 1.Safety Precautions Important! or rubbish. The unit should be installed according to the instructions This air conditioning system meets strict safety and in order to minimize the risk of damage from earthquakes, operating standards. As the installer or service person, typhoons or strong winds.
  • Page 6: Part 2 Specifications

    Specifications Specifications 2.1 Unit Specifications Models GWC09KF-K3DNA5A, GWH09KF-K3DNA5A GWC09KF-K3DNA5A GWH09KF-K3DNA5A Model Product Code CB14600050 CB14600051 CB14600060 CB14600063 Function COOLING COOLING HEATING Rated Voltage 220-240V ~ 220-240V ~ Frequency High (Inverter different Compressor Standard speed) Total Capacity High W / Btu/h 3230 / 11000 3230 / 11000 4100 / 14000...
  • Page 7 Specifications GWC09KF-K3DNA5A/O GWH09KF-K3DNA5A/O Outdoor Unit Manufacturer/trademark DIT/daikin DIT/daikin Model 1YC23AEXD 1YC23AEXD Rotary type Type Rotary type Compressor L.R.A. (A) RLA(A) Power Input(W) Overload Protector CS-7SA CS-7SA Throttling Method Capillary Capillary Transducer starting Transducer starting Starting Method Working Temp Range 10~48 -15~48 ℃...
  • Page 8 Specifications Models GWC12KF-K3DNA5A, GWH12KF-K3DNA5A GWC12KF-K3DNA5A GWH12KF-K3DNA5A Model Product Code CB14600070 CB14600072 CB14600080 CB14600083 Function COOLING COOLING HEATING Rated Voltage 220-240V ~ 220-240V ~ Frequency High (Inverter different Compressor Standard speed) Total Capacity 3960 / 13500 High W / Btu/h 3960 / 13500...
  • Page 9 Specifications GWC12KF-K3DNA5A/O GWH12KF-K3DNA5A/O Outdoor Unit Manufacturer/trademark DIT/daikin DIT/daikin Model 1YC23AEXD 1YC23AEXD Type Rotary type Rotary type Compressor L.R.A. (A) RLA(A) Power Input(W) Overload Protector CS-7SA CS-7SA Throttling Method Capillary Capillary Transducer starting Transducer starting Starting Method Working Temp Range 10~48 -15~48 ℃...
  • Page 10 Specifications Models GWH09KF-K3DNA6A, GWH12KF-K3DNA6A Model GWH09KF-K3DNA6A GWH12KF-K3DNA6A Product Code CB14600110 CB14600120 Rated Voltage V ~ 220-240 220-240 Power Supply Rated Frequency Phases Power Supply Mode Indoor Indoor Cooling Capacity (Min ~ Max) 2650(450~3230) 3530(600~3960) Heating Capacity (Min ~ Max) 3520(450~4100) 4100(600~5130) Cooling Power Input (Min ~...
  • Page 11 Specifications Model of Outdoor Unit GWH09KF-K3DNA5A/O GWH12KF-K3DNA5A/O Compressor Daikin Compressor Industries Daikin Compressor Manufacturer/Trademark /daikin Industries/daikin Compressor Model 1YC23AEXD 1YC23AEXD Compressor Oil DAPHEN FVC50K DAPHEN FVC50K Compressor Type Rotary Rotary L.R.A. Compressor RLA Compressor Power Input 600W 600W Overload Protector CS-7SA CS-7SA Throttling Method...
  • Page 12 Specifications Models GWH09KF-K3DNB1A,GWH12KF-K3DNB1A Model GWH09KF-K3DNB1A GWH12KF-K3DNB1A Product Code CB14600760 CB14600770 Rated Voltage V ~ 220-240 220-240 Power Supply Rated Frequency Phases Power Supply Mode Indoor Indoor Cooling Capacity (Min ~ Max) 2650(450~3230) 3530(600~3960) Heating Capacity (Min ~ Max) 3520(450~4100) 4100(600~5130) Cooling Power Input (Min ~...
  • Page 13 Specifications Model of Outdoor Unit GWH09KF-K3DNA5A/O GWH12KF-K3DNA5A/O Compressor Daikin Compressor Industries Daikin Compressor Manufacturer/Trademark /daikin Industries/daikin Compressor Model 1YC23AEXD 1YC23AEXD Compressor Oil DAPHEN FVC50K DAPHEN FVC50K Compressor Type Rotary Rotary L.R.A. Compressor RLA Compressor Power Input 600W 600W Overload Protector CS-7SA CS-7SA Throttling Method...
  • Page 14: Operation Characteristic Curve

    Specifications 2.2 Operation Characteristic Curve Cooling Heating Condition Condition Indoor:DB 20 Indoor:DB 27 WB19 Indoor air flow: Super High Indoor air flow: Super High Pipe length:5m Pipe length:5m Voltage:230V Voltage:230V Compressor Speed(rps) Compressor Speed(rps) 2.3 Capacity Variation Ratio According to Temperature Cooling Heating Condition...
  • Page 15: Operation Date

    Specifications 2.4 Operation Date Cooling Temp. Condition( ℃ ) Standard Indoor Fan Outdoor Compressor Model Pressure(Mpa) Mode Fan Mode Revolution(rps) Indoor Outdoor 0.9 to 1.1 27/19 35/24 Super High 930rpm 0.8 to 1.0 Heating Temp. Condition( ℃ ) Standard Indoor Fan Outdoor Compressor Model...
  • Page 16: Part 3 Construction Views

    Constrction views 3. Construction Views 3.1 Indoor Unit Models:GWC09KF-K3DNA5A/I,GWH09KF-K3DNA5A/I,GWC12KF-K3DNA5A/I,GWH12KF-K3DNA5A/I 548.5 126.5 Unit:mm Models:GWH09KF-K3DNA6A/I,GWH12KF-K3DNA6A/I 126.5 548.5...
  • Page 17: Outdoor Unit

    Constrction views Models:GWH09KF-K3DNB1A/I,GWH12KF-K3DNB1A/I 126.5 548.5 3.2 Outdoor Unit...
  • Page 18: Part 4 Refrigerant System Diagram

    Refrigerant System Diagram 4. Refrigerant System Diagram (1)Cooling Only Models INDOOR UNIT OUTDOOR UNIT GAS SIDE 3-WAY VALVE Muffler Di s charge HEAT EXCHANGE (EVAPORATOR) Suction Accumlator COMPRESSOR HEAT EXCHANGE (CONDENSER) LIQUID SIDE 2-WAY VALVE Strainer Capillary Strainer COOLING (2)Cooling & Heating Models INDOOR UNIT OUTDOOR UNIT GAS SIDE...
  • Page 19: Part 5 Schematic Diagram

    Schematic Diagram 5. Schematic Diagram 5.1 Electrical Data Indoor Unit Symbol Color symbol Symbol Color symbol WHITE BROWN YELLOW BLUE BLACK YELLOW GREEN PROTECTIVE EARTH YEGN Outdoor Unit Symbol Parts name Symbol Color symbol REACTOR WHITE PRINTED CIRCUIT BOARD YELLOW PCB1~PCB2 S10/S11S40/S70/S80/S90 CONNECTOR...
  • Page 20 Schematic Diagram Outdoor Unit Models GWC09KF-K3DNA5A/O ,GWC12KF-K3DNA5A/O EXHAUST OUTTUBE OUTROOM TEM.SENSOR TEM.SENSOR TEM.SENSOR N(1) PCB2 YEGN YEGN U V W YEGN YEGN PCB1 YEGN CLAPBOARD ELECTRICAL BOX YEGN SUB-ASSY YEGN WARNING COMP. Please don't touch any terminal when the voltage of...
  • Page 21: Printed Circuit Board

    Schematic Diagram 5.3 Printed Circuit Board TOP VIEW Interface of null wire of cold-plasma Interface of input null wire Interface of live wire Interface of input live wire Interface for feedback of indoor fan Interface of indoor fan of cold-plasma Interface of pipe temp sensor Interface of ambient temp sensor Interface of communication wire...
  • Page 22 Schematic Diagram null line live wire   communication ground wire wire dispaly board infrared receiver...
  • Page 23 Schematic Diagram TOP VIEW Interface of mainboard and wave filter Interface of temp sensor Interface of outdoor fan Interface of compressor Interface of overload protector of compressor Interface of live wire Interface of null wire Interface of 4-way valve BOTTOM VIEW...
  • Page 24 Schematic Diagram FRONT VIEW BOTTOM VIEW...
  • Page 25 Schematic Diagram TOP VIEW BOTTOM VIEW...
  • Page 26: Part 6 Function And Control

    Function and Control 6. Function and Control 6.1 Remote Control Operations ON/OFF Press this button to start or stop operation. MODE Press it to select operation mode(AUTO/COOL/DRY/FAN/HEAT). AUTO : Press it to decrease temperature setting. HEALTH X-FAN HUMIDITY : Press it to increase temperature setting. FILTER TURBO HOUR...
  • Page 27 Function and Control Press this button to decrease set temperature.Holding it down above 2 seconds rapidly decreases set temperature. In AUTO mode, set temperature is not adjustable. Press this button to increase set temperature.Holding it down above 2 seconds rapidly increases set temperature. In AUTO mode, set temperature is not adjustable.
  • Page 28: Changing Batteries And Notices

    Function and Control Press this button to select displaying indoor set temp or indoor ambient temp. Set temp will be displayed after first energization of indoor unit; When temp display changes to “ ” from other state, the ambient temp will be displayed and then set temp will be displayed after receiving other remote signals.
  • Page 29: Description Of Each Control Operation

    6.3 Description of Each Control Operation * Cold air prevention function (1)Cooling Mode The rotational speed of indoor motor is decided based on the When room temp-set temp ≤-2℃ , cooling will stop; indoor pipe temperature. The indoor fan can run at low speed or stop Outdoor fan will stop later and indoor fan will operate at set speed;...
  • Page 30 Function and Control Timer off: the timer off function can be set when the unit is on. When the (7)Louver Control set time for timer off is reached, the unit will stop. The timing interval is After energization, the swing motor will open the horizontal 0.5hour, and the set range is 0.5~24hours.
  • Page 31: Troubleshooting Of Temp Sensor Malfunction

    Function and Control Troubleshooting of Temperature Sensor (1) Indoor temperature sensor Detect malfunctions of temperature sensor at any time. (2) Indoor pipe temperature sensor In defrosting period, the temperature sensor malfunction will not be detected. 5 min after finishing defrosting, the system begins to detect the temperature sensor malfunction.
  • Page 32: Discharge Pipe Control

    Function and Control 6.8 Discharge Pipe Control Outline The discharge pipe temperature is used as the compressor’s internal temperature. If the discharge pipe temperature rises above a certain level, the operating frequency upper limit is set to keep this temperature from going up further. Detail Divide the Zone Stop zone...
  • Page 33: Heating Peak-Cut Control

    Function and Control During cooling operation, the signals being sent from the indoor unit allow the operating frequency limitation and then prevent freezing of the indoor heat exchanger. (The signal from the indoor unit must be divided into the zones as the followings.) Detail Conditions for Start Controlling Judge the controlling start with the indoor heat exchanger temperature after 2 sec from operation start.
  • Page 34: Fan Control

    Function and Control PI control Frequency 60sec. 50sec. 600sec. 50sec. Compressor Four way valve 5sec. 5sec. 450pps 350pps 450pps Electronic expansion valve opening Initial opening 6.13 Fan Control Outline Fan control is carried out according to the following priority. 1. Fan ON control for electric component cooling fan 2.
  • Page 35: Part 7 Installation Manual

    Installation Manual 7. Installation Manual 7.2 Installation Position Selection Important Notices (1)The air inlet and outlet vent should be far from the obstruction, make sure that the air can be blown through the whole room. (2)Select a position where the condensing water can be easily 1.
  • Page 36: Flaring Work

    Installation Manual Recommended mounting plate retention spots and Burr removal dimensions 1.Completely remove all burrs from the cut cross section of Use tape measure as shown. Recommended mounting plate Place a leveler pipe/tube. Position the end of retention spots (5 spots in all) on raised tab.
  • Page 37 Installation Manual 5. Insert the connecting cable fully into the terminal block and 3.2 Connection of piping 1.Align the center of the pipes and sufficiently tighten the flare nut secure it tightly with screws. by hand. 6. Tightening torque: 1.2 N•m (0.12 kgf•m). 7.
  • Page 38 Installation Manual How to replace the drain plug and drain hose In the case of bending or curing refrigerant pipes, keep the fol- • How to remove the drain cap Clamp drain cap with needle-nose pliers, and pull out. lowing precautions in mind. Abnormal sound may be generated if improper work is conducted.
  • Page 39: Install Outdoor Unit

    Installation Manual Mounting plate Drain-water hole Marking Bottom frame Drain plug Hose (available commercially, inner dia. 16mm) 2) Swing the indoor unit to right and left to confirm that it is firmly hooked on the installation plate. Remove the Valve cover from the unit by loosening the screw. 3)While pressing the indoor unit onto the wall, hook it at the lower Align the center of the pipings and sufficiently tighten the flare part on the installation plate.
  • Page 40: Test Operation

    Installation Manual 1. Connect the charge hose from the manifold valve to the service port of the gas side packed valve. 1) Strip the insulation from the wire (20mm). 2) Connect the connection wires between the indoor and outdoor 2. Connect the charge hose to the port of the vacuum pump. 3.
  • Page 41: Part 8 Exploded Views And Parts List

    Exploded Views and Parts list 8. Exploded Views and Parts List 8.1 Indoor Unit Models GWC09KF-K3DNA5A/I,GWH09KF-K3DNA5A/I,GWC12KF-K3DNA5A/I,GWH12KF-K3DNA5A/I AUTO HEALTH X-FAN FILTER HUMIDITY TURBO HOUR ON/OFF ON/OFF MODE X-FAN TEMP TIMER TURBO SLEEP LIGHT...
  • Page 42 Exploded Views and Parts list Part Code Description GWC09KF-K3DNA5A/I GWH09KF-K3DNA5A/I CB146N0060 Product Code CB146N0050 Decorative Strip 20192292 20192292 2001232501T 2001232501T Front Panel Filter Sub-Assy 1112208201 1112208201 20012324 20012324 Front Case Guide Louver 10512119 10512119 Air Louver 10512160 10512160 Shaft of guide louver 1054202001 1054202001 Front Panel Assy...
  • Page 43 Exploded Views and Parts list Part Code Description GWC12KF-K3DNA5A/I GWH12KF-K3DNA5A/I Product Code CB146N0070 CB146N0080 Decorative Strip 20192292 20192292 Front Panel 2001232501T 2001232501T Filter Sub-Assy 1112208201 1112208201 Front Case 20012324 20012324 Guide Louver 10512119 10512119 Air Louver 10512160 10512160 Shaft of guide louver...
  • Page 44 Exploded Views and Parts list Models GWH09KF-K3DNA6A/I,GWH12KF-K3DNA6A/I AUTO HEALTH X-FAN HUMIDITY FILTER TURBO HOUR ON/OFF ON/OFF MODE X-FAN TEMP TIMER TURBO SLEEP LIGHT...
  • Page 45 Exploded Views and Parts list Part Code Description GWH09KF-K3DNA6A/I GWH12KF-K3DNA6A/I Product Code CB146N0110 CB146N0120 Front panel 2 20012443S 20012443S Front Case Assy 2001237501 2001237501 Remote Controller 30510061 30510061 Main Board 30138120 30138121 Ambient Temperature Sensor 390000453 390000453 Temperature Sensor 39000305 39000305 Indicator Light Cover 22242084...
  • Page 46 Exploded Views and Parts list Models GWH09KF-K3DNB1A/I,GWH12KF-K3DNB1A/I AUTO HEALTH X-FAN HUMIDITY FILTER TURBO HOUR ON/OFF ON/OFF MODE X-FAN TEMP TIMER TURBO SLEEP LIGHT...
  • Page 47 Exploded Views and Parts list Part Code Description GWH09KF-K3DNB1A/I GWH12KF-K3DNB1A/I Product Code CB146N0760 CB146N0770 Front panel 20012688S 20012688S Front Case Assy 2001237501 2001237501 Remote Controller 30510061 30510061 Main Board 30138120 30138121 Ambient Temperature Sensor 390000453 390000453 Temperature Sensor 39000305 39000305 Indicator Light Cover 22242084 22242084...
  • Page 48: Outdoor Unit

    Exploded Views and Parts list 8.2 Outdoor Unit (1) Cooling Only Models Round grill...
  • Page 49 Exploded Views and Parts list Part Code Description GWC09KF-K3DNA5A/O GWC12KF-K3DNA5A/O Product Code CB146W0050 CB146W0070 Front Grill 22413017 22413017 Cabinet 01433044P 01433044P Fan fixed nut 70313001 70313001 Axial Flow Fan Sub-Assy 1033300901 1033300901 Fan Motor 15013073 15013073 Motor Support 01703111 01703111...
  • Page 50 Exploded Views and Parts list Square grill...
  • Page 51 Exploded Views and Parts list Part Code Description GWC09KF-K3DNA5A/O GWC12KF-K3DNA5A/O Product Code CB146W0051 CB146W0072 Front Grill 22413018 22413018 Cabinet 01433418P 01433418P Fan fixed nut 70313001 70313001 Axial Flow Fan Sub-Assy 1033300901 1033300901 Fan Motor 15013073 15013073 Motor Support 0170311101 01703111...
  • Page 52 Exploded Views and Parts list Exploded Views and Parts list (2) Cooling & Heating Models Round grill...
  • Page 53 Part Code Description GWH09KF-K3DNA5A/O GWH12KF-K3DNA5A/O Product Code CB146W0060 CB146W0080 Front Grill 22413017 22413017 Cabinet 01433044P 01433044P Fan fixed nut 70313001 70313001 Axial Flow Fan Sub-Assy 1033300901 1033300901 Fan Motor 15013073 15013073 Motor Support 0170311101 01703111 Chassis Sub-assy 0120390901P 0120390901P Sound insulation Cotton 2 75013543 75013543 Sound insulation Cotton Assy...
  • Page 54 Square grill...
  • Page 55 Exploded Views and Parts list Part Code Description GWH09KF-K3DNA5A/O GWH12KF-K3DNA5A/O Product Code CB146W0063 CB146W0083 Front Grill 22413018 22413018 Cabinet 01433418P 01433418P Fan fixed nut 70313001 70313001 Axial Flow Fan Sub-Assy 1033300901 1033300901 Fan Motor 15013073 15013073 Motor Support 0170311101 01703111 Chassis Sub-assy 0120390901P 0120390901P...
  • Page 56: Part 9 Troubleshooting

    Troubleshooting 9. Troubleshooting 9.1 Precautions before Performing Inspection or Repair Be cautious during installation and maintenance. Do operation following the regulations to avoid electric shock and casualty or even death due to drop from high attitude. * Static maintenance is the maintenance during de-energization of the air conditioner. For static maintenance, make sure that the unit is de-energized and the plug is disconnected.
  • Page 57 Troubleshooting code malfunctio Repair method malfunction Repair method Error display Error display Dual Dual 8 display display Storage Heating LED-pause Replace indoor main Sync failure Heating Check if the resistance slug 3s and blink 15 board LED-pause 3s and compressor times blink 7 times resistance to ground is...
  • Page 58: How To Check Simply The Main Part

    Troubleshooting 9.4 How to simply check the main part (1) Malfunction of power supply from indoor unit to outdoor unit Main inspection point: Inspect the power supply plug seat with AC voltage gauge to check if the voltage between L and N is within 200VAC~240VAC; Check with AC voltage gauge if the voltage between N 1and 3 of indoor wiring block is within 200VAC~240VAC;...
  • Page 59 Troubleshooting Energize the unit and start it Voltage between L and N of indoor wiring block Check the connecting state of the Voltage > 200V? connecting terminal Adjust Reliable connecting connection state Replace main remove the Check power board of indoor error? supply unit...
  • Page 60 Troubleshooting Energize the (4) Malfunction diagnosis of startup failure unit and start it Main detection points: Is wiring of compressor correct. Is the stop time of compressor more Start it 3 min later Is the stop time of compressor enough? than 3min£¿...
  • Page 61 Troubleshooting (6) Diagnosis of overload and discharge malfunction Main detection points: 20min after de-energization Is electric expansion valve well connected? Is it damaged? of complete unit Is refrigerant leaked? Is overload wire connection normal? Is electric Malfunction diagnosis process: expansion valve well connected? Is overload wire reliably connected?
  • Page 62: 2-Way, 3-Way Valve Appearance

    Troubleshooting 9.5 2-way, 3-way Valve Appearance 2-way Valve (Liquid Side) 3-way Valve (Gas Side) Valve cap Hexagonal wrench (4mm) Open position Flare nut Flare nut Closed position Open position Closed position piping piping Service Service connection connection port cap port To outdoor unit To outdoor unit Works...
  • Page 63 Troubleshooting Liquid side Indoor unit Outdoor unit Clsed 2-way valve Gas side Clsed 3-way valve Vacuum pump OPEN CLOSE * Procedure CAUTION: (1)Connect the charge hose from the manifold valve to the ser- If gas leakage are discovered in step 5 above, take the vice port of the gas side packed valve.
  • Page 64 Troubleshooting Liquid side Indoor unit Open Outdoor unit 2-Way valve Gas side Closed 3-Way valve CLOSE CLOSE Purge the air • Procedure (7) Immediately set the 3-way valve to the closed position. (1) Confirm that both the 2-way and 3-way valves are set to –...
  • Page 65 Troubleshooting Liquid side Indoor unit Closed Outdoor unit 3-Way valve Gas side Closed 3-Way valve Gas cylinder R410A OPEN CLOSE • Procedure (1) Confirm that both the liquid side valve and the gas side (6) Disconnect the charge set and the gas cylinder, and set valve are set to the closed position.
  • Page 66 Troubleshooting Balance Refrigerant of the 3-way Valve (Gas leakage) Liquid side Indoor unit Outdoor unit 3-Way valve Open Gas side 3-Way valve Open OPEN CLOSE • Procedure (1) Confirm that both the 2-way and 3-way valves (3) Open the valve (Lo side) on the charge set and are set to the back seat.
  • Page 67 Troubleshooting Evacuation (All amount of refrigerant leaked) Liquid side Indoor unit Outdoor unit 3-Way valve Open Gas side 3-Way valve Open Vacuum pump OPEN CLOSE • Procedure (1) Connect the vacuum pump to the center hose (3) Close the valve (Lo side) on the charge set, of charge set center hose turn off the vacuum pump, and confirm that the gauge needle does not move (approxima-...
  • Page 68: Gas Charging

    Troubleshooting Gas Charging (After Evacuation) Liquid side Indoor unit Open Outdoor unit 3-Way valve Gas side Open 3-Way valve Check valve Charging cylinder OPEN CLOSE • Procedure This is different from previous procedures. (1) Connect the charge hose to the charging Because you are charging with liquid refrigerant cylinder.
  • Page 69: Removal Procedure Of Indoor Unit

    Troubleshooting Liquid side Indoor unit Closed Outdoor unit 3-Way valve Gas side Closed 3-Way valve Gas cylinder R410A OPEN CLOSE • Procedure (1) Confirm that both the liquid side valve and the gas side (6) Disconnect the charge set and the gas cylinder, and set the Liquid side and Gas side valves to the open position.
  • Page 70: Part10 Removal Procedure

    Removal Procedure 3. Opening and shuttingfront panel Support the front panel by one hand, while remove the rotation Pull down horizontal blade axis at the upper center by the by pulling forward. other hand. And pull out the front panel forward to remove.
  • Page 71 Removal Procedure 4. Opening and closing of service cover screws Remove a service cover mounting screw. Open service cover upward. A switch for field setting is not provided in particular. screws 5. Removal of front grille assembly Remove the 3 screws, in the right and the left, Screw stoppers inside the which fix the main body...
  • Page 72 Removal Procedure 6. Remove the Vertical blade Hook Unfasten the hooks at the upper 2 positions. A set of vertical blade has 6 fins as on ASSY. (It is impossible to replace only one fin.) The set of vertical blades is not marked for difference between right and left.
  • Page 73 Removal Procedure 7. Remove electrical box Disconnect the Cable clamp Pay attention to the direction of the retainer of the thermistor so that the retainer will not touch the harness (same as the existing models.) Terminal board Disconnect the connection wires. Connecting wires Take care not to lose the clip...
  • Page 74 Removal Procedure Remove fan motor Signal fan motor Signal Wire Wire Remove a screw on the electrical box. Bottom frame Pull up the electrical box forward to remove. Hook...
  • Page 75 Removal Procedure 8. Remove the shield plate. Unfasten the hooks at Hook the upper 2 positions of the shield plate. Remove the electrical box according to the “Removal of Electrical Box”. shield plate (1) Unfasten the hook at the lower position, and remove the shield plate (1).
  • Page 76 Removal Procedure Take off Wiring terminal Display PCB ASSY Remove Display PCB Sub-Assy. Remove Swing motor. Swing motor...
  • Page 77 Removal Procedure The control PCB is To remove the control integrated with the power PCB, unfasten the 2 hooks at the upper part supply PCB. from the rear side. Lift up the upper part of the control PCB, and remove it. Control PCB...
  • Page 78 Removal Procedure 9. Disconnect the refrigerant piping. CAUTION If gas leaks, repair the spot of Lift the indoor unit by a leaking, then collect all wooden base. refrigerant from the unit. After conducting vacuum drying, recharge proper amount of refrigerant. CAUTION Wooden base Do not contaminate any gas...
  • Page 79 Removal Procedure 9. Remove the indoor unit. When the pipings are disconnected, protect the Remove the indoor unit both openings from entering from the installation moisture. plate. Liquid piping Gas piping (R8019) Auxiliary piping Piping fixture Release the hook of the piping fixture on the back of the unit.
  • Page 80 Removal Procedure Loosen the 2 screws, in the right and the left, which fix the Evaporator Assy. Auxiliary piping Widen the auxiliary piping to the extent of 10°~20°. Pull the heat exchanger Heat exchanger to the front side to undo the hooks completely, and then lift it.
  • Page 81 Removal Procedure 10. Remove Cross Flow Fan Fan Motor Remove Cross Flow Fan Fan Motor 11. Remove Ring of Bearing Bearing 12. Remove Cross Flow Fan and Motor Sub-Assy screw.
  • Page 82 Removal Procedure 13. Remove Motor Sub-Assy Remove Motor Sub-Assy 14. Remove Fan Motor...
  • Page 83: Removal Procedure Of Outdoor Unit

    Removal Procedure 10.2 Removal Procedure of Outdoor Unit Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. 1. Features The stop valve cover has 6 hooks. Handle Loosen the screw of the stop valve cover.
  • Page 84 Removal Procedure Loosen the 1 screws and remove the discharge discharge grille. grille Lift the front panel and Loosen the 5 screws of remove it while pushing the the front panel. right side panel inwards. Procedure Points Step Front panel. Remove screws on right Right side plate side plate and valve...
  • Page 85 Removal Procedure Remove the 4 tapping screws M4×16 fixing the motor. Pull out the lead-out wire and remove the DC fan motor Fan motor fixing frane motor. Remove the 2 tapping screws fixing the motor support. Lift motor support to remove it.
  • Page 86 Removal Procedure 6.Remove the sound blanket. sound blanket Since the piping ports on Lift and remove the the sound blanket are torn sound blanket (top). easily, remove the blanket carefully. Untie the strings and open the sound blanket. Lift and remove the sound blanket (body) as it is opened.
  • Page 87 Removal Procedure Remove the compressor Unsolder weld point of capillary, valve and outlet pipe of condensator. Then remove the capillary. Don’t block the capillary when unsoldering it. (Note: before unsoldering, discharge refrigerants completely) Remove the 2 screws fixing the gas valve. Unsolder the welding spot connecting gas valve and air return pipe and remove the gas valve.
  • Page 88 GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI Add:Jinji west Rd.Qianshan Zhuhai Guangdong China Tel:86-756-8522219 (After sale Service Dept) Post code: 51907 0...

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