Gree GWH09AB-A3DNA1B Service Manual
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Gree GWH09AB-A3DNA1B Service Manual

(refrigerant r410a)
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See also: Owner's Manual
MODEL:GWH09AB-A3DNA1B
GWH12AB-A3DNA1B
GWH12AB-D3DNA1B
(Refrigerant R410A)

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Summary of Contents for Gree GWH09AB-A3DNA1B

  • Page 1 MODEL:GWH09AB-A3DNA1B GWH12AB-A3DNA1B GWH12AB-D3DNA1B (Refrigerant R410A)

  • Page 2: Table Of Contents

    Table of Contents Summary and features ..................1 Part 1 Safety Precautions ..................2 Part 2 Specifications .....................3 Part 3 Construction Views ..................7 3.1 Indoor Unit ......................7 3.2 Outdoor Unit ......................7 Part 4 Refrigerant System Diagram ..............8 Part 5 Schematic Diagram ..................9 5.1 Electrical Data......................9 5.2 Electrical Wiring....................
  • Page 3 Table of Contents Part 8 Exploded Views and Parts List ..............30 8.1 Indoor unit......................30 8.2 Outdoor unit......................34 Part 9 Troubleshooting ....................40 9.1 Malfunction Analysis .....................40 9.2 Flashing LED of Indoor/Outdoor Unit and Primary Judgement......44 9.3 How to Check Simply the Main Part..............47 Part10 Removal Procedure ..................56 10.1 Removal Procedure of Indoor Unit..............56...

  • Page 4: Summary And Features

    Summary and features Summary and features Indoor Unit GWH09AB-A3DNA1B/I GWH12AB-A3DNA1B/I GWH12AB-D3DNA1B/I Outdoor Unit GWH09AB-A3DNA1B/O GWH12AB-A3DNA1B/O GWH12AB-D3DNA1B/O Remote control window YT1FF MODE I FEEL TIMER CLOCK TIMER X-FAN TEMP TURBO SLEEP LIGHT...

  • Page 5: Part 1 Safety Precautions

    1.Safety Precautions Safety Precautions Installing, starting up, and servicing air- -conditioning equipment can be hazardous due to system pressures, electrical components, The unit should be installed according to the instructions and equipment location (roofs, elevated structures, etc.). in order to minimize the risk of damage from earthquakes, Only trained, qualified installers and service mechanics should hurricanes or strong winds.

  • Page 6: Part 2 Specifications

    Specifications Specifications Parameter Unit Value Model GWH09AB-A3DNA1B GWH12AB-A3DNA1B Product Code CB11500550 CB11500570 Rated Voltage Power Rated Frequency Supply Phases Power Supply Model Outdoor Outdoor Cooling Capacity (Min Max) Btu/h 9000(4000 11950) 12000(4500 13000) Heating Capacity (Min Max) Btu/h 9500(3412 12500)
  • Page 7 Specifications Model of Outdoor Unit GWH09AB-A3DNA1B/O GWH12AB-A3DNA1B/O CHINA CHINA RESOURCES(SHENYANG) RESOURCES(SHENYANG) Compressor Manufacturer/Trademark SANYO COMPRESSOR CO. SANYO COMPRESSOR CO. LTD./SANYO LTD./SANYO Compressor Model C-6RZ110H1A C-6RZ110H1A Compressor Oil FV50S FV50S Compressor Type Rotary Rotary L.R.A. 33.00 Compressor RLA 4.59 4.59 Compressor Power Input...
  • Page 8 Specifications Parameter Unit Value Model GWH12AB-D3DNA1B Product Code CB11500380 Rated Voltage 208/230 Power Rated Frequency Supply Phases Power Supply Model Outdoor Cooling Capacity (Min Max) Btu/h 12000(4500 13000) Heating Capacity (Min Max) Btu/h 13000(3200 14000) Cooling Power Input (Min Max) 960(160 1180) Heating Power Input (Min Max) 1140(400 1250)
  • Page 9 Specifications Model of Outdoor Unit GWH12AB-D3DNA1B/O CHINA RESOURCES(SHENYANG) SANYO Compressor Manufacturer/Trademark COMPRESSOR CO. LTD./SANYO Compressor Model C-6RZ110H1A Compressor Oil FV50S Compressor Type Rotary L.R.A. 33.00 Compressor RLA 4.59 Compressor Power Input Overload Protector Int11l-3979 Throttling Method Electron expansion valve Operation temp ºF 61 86 Ambient temp (cooling)

  • Page 10: Part 3 Construction Views

    Constrction views 3. Construction Views 3.1 Indoor Unit (THE SAME DIMS FOR 9k12k) 34-1/3 12K Unit: 23-4/5 6-8/15 3.2 Outdoor Unit Unit:inch Model 21-1/4 12-3/5 33-3/8 33-3/8 23-2/9 12-3/5 21-1/4...

  • Page 11: Part 4 Refrigerant System Diagram

    Refrigerant System Diagram 4. Refrigerant System Diagram Heat exchanger ( INDOOR ) Muffler 4-Way valve Strainer Expansion valve Heat exchanger Strainer ( OUTDOOR ) Cooling Heating Refrigerant Pipe Diameter Liquid...

  • Page 12: Part 5 Schematic Diagram

    SAT OVERLOAD BN BROWN COMP COMPRESSOR BLUE BLACK Ground YEGN YELLOW GREEN 5.2 Electrical wiring Indoor Unit (1) Models GWH09AB-A3DNA1B/I ,GWH12AB-A3DNA1B/I ROOM TUBE AP1 DISPLAY TEM.SENSOR TEM.SENSOR W4 BU DISP3 DISP4 ROOM TUBE N(1) W5 BK...

  • Page 13: Schematic Diagram

    W2 YEGN W1 YEGN W6 YEGN SWING-UD HEALTH-L HEALTH-N ELECTRIC BOX EVAPORATOR COOL PLASMA GENERATOR YEGN STEP MOTOR FAN MOTOR Outdoor Unit (1) Models GWH09AB-A3DNA1B/O,GWH12AB-A3DNA1B/O COMP CT1,2 COMP TUBE OUTROOM EXHUAST W8 YEGN TEM.SENSOR TEM.SENSOR TEM.SENSOR W10 RD W3 YEGN...
  • Page 14 Schematic Diagram (2) Models GWH09AB-A3DNA1B/O,GWH12AB-A3DNA1B/O COMP CT1,2 COMP TUBE OUTROOM EXHUAST W8 YEGN TEM.SENSOR TEM.SENSOR TEM.SENSOR W3 YEGN W10 RD W5 BU W6 YE W7 BK OVERHEAT OUTTUBE OUTROOM EXHAUST W15 BU N(1) W4 BK COMU W14 BN W1 BN...

  • Page 15: Printed Circuit Board

    Schematic Diagram 5.3 Printed Circuit Board TOP VIEW Transformer with Interface for live wire Interface of Auto button high frequency of health function indoor fan Indoor tambien temp sensor Main chip Indoor pipe temp sensor BOTTOM VIEW...
  • Page 16 Schematic Diagram (1) Models GWH09AB-A3DNA1B/O , GWH12AB-A3DNA1B/O TOP VIEW Jumper null wire Terminal for live wire electronic Terminal for Positive pole Terminal for Negative pole Jumper Terminal for fan expansion valve 4-way valve of big capacitor null wire of Terminal for...
  • Page 17 Schematic Diagram (2) Model GWH12AB-D3DNA1B/O TOP VIEW Terminal for live wire Jumper terminal connecting to reactor for null wire, and 4-way valve electronic Electrolysis connecting to N3 expansion valve Terminal for Terminal for condenser Main relay ground wire 4-way valve Terminal for DC fan Terminal for live wire, connecting...

  • Page 18: Part 6 Function And Control

    Function and Control 6. Function and Control 6.1 Remote Control Operations ON/OFF Button Setpoint Temperature DOWN Button Setpoint Temperature UP Button FAN Speed Button MODE Button I FEEL Button HEALTH function Button AIR function Button Clock Button Timer ON Button X-FAN Button Temperature Displaye Button TIMER OFF Button...
  • Page 19 Function and Control Auto Medium speed High speed Low speed MODE Press this button, Auto, Cool,Dry, Fan, Heat mode can be selected circularly. Auto mode is default while power on. Under Auto mode, the temperature will not be displayed; In this mode, the unit will automatically select the suitable operation mode in acc- ordance with the room temperature to make the room more comfortable for you.

  • Page 20: Changing Batteries And Notices

    Function and Control TEMP : Press this button, could select displaying (the indoor setting temperature) , (indoor ambient temperature )or outdoor am-bient temperature) .The unit defaults not to display the icon. During operation of TEMP button, the set tem- perature is always displayed TIMER OFF Once press this key to enter into TIMER OFF setup, in which case the TIMER OFF icon will blink.The method of setting is the same as TIMER ON.

  • Page 21: Description Of Each Control Operation

    Function and Control 6.3 Description of Each Control Operation 1. Temperature Parameters Indoor preset temperature (T preset Indoor ambient temperature (T 2. Basic Functions Once energized, in no case should the compressor be restarted within less than 3 minutes. In the situation that memory function is available, for the first energization, if the compressor is at stop before de-energization, the compressor will be started without a 3-minute lag;...
  • Page 22 Function and Control Protection Protection is the same as that under the cooling mode. (3) Heating Mode Working conditions and process of heating If T Tpreset +35.6 ºF , the unit enters heating mode, in which case the four-way valve, the compressor and the outdoor fan amb.
  • Page 23 Function and Control b.Under AUTO mode, if T is detected, the unit will select to run under cooling mode, in which case implicit preset preset temperature is 77 ºF ; if T 28.4 , the compressor will stop, the outdoor fan will stop with a time lag of 1 minute, and ºF preset the indoor fan will run at preset speed;...
  • Page 24 Function and Control Designation of sensors Faults The sensor is detected to be open-circuited or short-circuited for Indoor ambient temperature successive 20 seconds The sensor is detected to be open-circuited or short-circuited for Indoor tube temperature successive 20 seconds The sensor is detected to be open-circuited or short-circuited for Outdoor ambient temperature successive 30 seconds The sensor is detected to be open-circuited or short-circuited for...
  • Page 25 Function and Control Cooling angle Heating angle O(0°) O(0°) (10) Display Operation pattern and mode pattern display All the display patterns will display for a time when the power on, the operation indication pattern will display in red under standby status.

  • Page 26: Part 7 Installation Manual

    Installation Manual 7. Installation Manual 7.1 Notices for Installation 7.1.1 Caution 1.The unit must only be installed by authorized service center according to local or government regulations and in compliance with this manual . 2.Before installating, please contact with local authorized maintenance center. If the unit is not installed by the authorized service center, the malfunction may not be solved due to discommodious contacts.
  • Page 27 Installation Manual 7.1.5 Safety Precautions for Electric Appliances 1.A dedicated power supply circuit should be used in accordance with local electrical safety regulations. 2.Don’t drag the power cord emphatically. 3.The unit should be reliably earthed and connected to the special earth device by the professionals. 4.The air switch must have the functions of magnetic tripping and heat tripping to prevent short circuit and overload.

  • Page 28: Installation Drawing

    Installation Manual 7.2 Installation Drawing Space to the ceiling 5.9 in. Space to the wall Above Above 5.9 in. 5.9 in. Above Space to the wall 118.1 in. Above Air outlet side The dimensions of the space necessary for correct installation of the appliance include the minimum permissible distances to adjacent structures Space to the obstruction...

  • Page 29: Install Indoor Unit

    Installation Manual 7.3 Install Indoor Unit 7.3.1 Installation of Mounting Plate 1.Make the mounting plate completely level . As the water tray’s oulet of the indoor unit is two-way type, the indoor unit during installation should slightly slant to watert tray’s outlet for smooth drainage of condensing water. 2.Fix the mounting plate on the wall with screws.(Where is pre-covered with plastic granula) 3.Be sure that the mounting plate has been fixed firmly enough to withstand the weight of an adult of 132.3 lb.;...
  • Page 30 Installation Manual 7.3.4 Connecting Indoor and Outdoor Electric Wires 1.Open the front panel. 2.Remove the wiring cover. 3.Make the power connection cord and signal control wire (only for heat Heat PumpType pump unit ) pass through. N(1) 4.Reinstall the cord anchorage and wiring cover. brown yellow- green 5.Reinstall the front panel.the hole at the back of indoor unit.

  • Page 31: Install Outdoor Unit

    NOTE: Connect the connection pipe to indoor unit at first and then to outdoor unit. Handle piping bending with care. Do not damage the connection pipe. Ensure that the joint nut is tightened firmly, otherwise, it may cause leakage. GWH09AB-A3DNA1B/O GWH12AB-D3DNA1B/O GWH12AB-A3DNA1B/O 7.4 Install Outdoor Unit...
  • Page 32 Installation Manual 7.4.2 Air Purging and Leakage Test Deep Vacuum Method CAUTION The deep vacuum method requires a vacuum pump capable of pulling a vacuum of 500 microns and a vacuum gage capable of UNIT DAMAGE HAZARD accurately measuring this vacuum depth. The deep vacuum method is the most positive way of assuring a system is free of air and Failure to follow this caution may result in equipment liquid water.

  • Page 33: Check After Installation And Operation Test

    Installation Manual 7.4.3 Outdoor Condensation Drainage (only for Heat pump unit ) During heating operation, the condensing water and defrosting water should be drained out reliably through the drain hose. Install the outdoor drain connector in a 25 hole on the the base plate and attach the drain hose to the connector, so that the waste water formed in the outdoor unit can be drained out .The hole diameter 25 must be plugged.

  • Page 35: Part 8 Exploded Views And Parts List

    Exploded Views and Parts List Part Code Description GWH09AB-A3DNA1B/I Product Code CB115N0554_K54715 Wall-Mounting Frame 01252008 Filter 111220081 Rear Case assy 2220208402 Evaporator Assy 01002089 Cross Flow Fan 10352023 O-Gasket sub-assy of Bearing 76512051 Drainage Pipe 0523001401 Water Tray Assy 20182146...
  • Page 37 Exploded Views and Parts List Part Code Description GWH12AB-A3DNA1B/I Product Code CB115N0574_K54715 Wall-Mounting Frame 01252008 Rear Case assy 2220208402 Evaporator Assy 0100252402 Cross Flow Fan 10352023 O-Gasket sub-assy of Bearing 76512051 Drainage Pipe 0523001401 Water Tray Assy 20182146 Louver 10512099 Louver 10512097 Swing Linkage...
  • Page 39 Exploded Views and Parts List Part Code Description GWH12AB-D3DNA1B/I Product Code CB115N0388_K54715 Wall-Mounting Frame 01252008 Rear Case assy 2220208402 Evaporator Assy 0100252402 Cross Flow Fan 10352023 O-Gasket sub-assy of Bearing 76512051 Drainage Pipe 0523001401 Water Tray Assy 20182146 Louver 10512099 Louver 10512097 Swing Linkage...
  • Page 41 Exploded Views and Parts List Part Code Description GWH09AB-A3DNA1B/O Product Code CB115W0551_K54715 Mesh Enclosure 01473012 Cabinet 0143304601P Underpan Sub-Assy 01203524 Compressor Gasket 76815203 Drainage Connecter 06123401 Compressor C-6RZ110H1A 00205212 Overload Protector 00180002 4-way Valve Accessary 4300040021 Temperature Sensor for Discharge Gas...
  • Page 43 Exploded Views and Parts List Part Code Description GWH12AB-A3DNA1B/O Product Code CB115W0571_K54715 01473012 Front Grill Front Panel 0153500201 01203524 Chassis Sub-assy Compressor Gasket 76815203 Drainage Connecter 06123401 00180002 Overload Protector Compressor and fittings 00205212 39000016 Discharge Sensor Magnet Coil 4300040021 4-Way Valve 430004032 03123316...
  • Page 45 Exploded Views and Parts List Part Code Description GWH12AB-D3DNA1B/O Product Code CB115W0382_K54715 01473012 1 Front Grill 2 Front Panel 0153500201 3 Chassis Sub-assy 01203524 76815203 4 Compressor Gasket 5 Drainage Connecter 06123401 6 Overload Protector 00180002 00205212 7 Compressor and fittings 8 Discharge sensor 39000016 9 Magnet Coil...

  • Page 46: Part 9 Troubleshooting

    Troubleshooting 9. Troubleshooting 9.1 Malfunction Analysis Note: When replacing the controller, make sure insert the wire jumper into the new controller, otherwise the unit will display C5 Measure insulation resistance The breaker trips at once when it to ground to see if there is any is set to "ON".
  • Page 47 Troubleshooting Improper set of temperature Adjust set temperature If cooling (heating) load is Check the forecasted load of cooling (heating) proper Check and fill the leakage, then The refrigerant has leakage vacuumize it and supplement the or is insufficient refrigerant as required Leakage between the high pres- Replace the compressor sure and the low pressure in-...
  • Page 48 Troubleshooting The indoor fan motor is burned or breaks Replace the fan motor or the defective part. or has the heat protector malfunction. The built-in heat protector of the motor breaks frequently because the motor is Replace the fan motor abnormal.
  • Page 49 Troubleshooting C o n t r o l l e r m a l f u n c t i o n ( I C 2 0 0 3 b r o k e n , creepage of Change controller parallel capacitor of relay loop, relay is broken etc.) In cool, heat...

  • Page 50: Flashing Led Of Indoor/Outdoor Unit And Primary Judgement

    Troubleshooting 9.2 Flashing LED of Indoor/Outdoor Unit and Primary Judgement...
  • Page 51 Troubleshooting If malfunction occurs,corresponding code will display and the unit will resume normal until protection or malfunction disappears. Yellow indicator blinks for once Compressor stars (normal) Defrosting (normal display of indoor unit) Yellow indicator blinks for twice Anti-freezing protection (normal Yellow indicator blinks for 3 times display of indoor unit) IPM protection...
  • Page 52 Troubleshooting Analysis or processing of some of the malfunction display: 1. Compressor discharge protection Possible reasons: shortage of refrigerant; blockage of air filter; poor ventilation or air flow short pass for condenser; the system has noncondensing gas (such as air, water etc.); blockage of capillary assy (including filter); leakage inside four-way valve causes incorrect operation;...

  • Page 53: How To Check Simply The Main Part

    Troubleshooting 9.3 How to Check simply the main part (1) Capacitor charge fault (Fault with outdoor unit) (AP1 below refers to the outdoor control panel) Main Check Points: Use AC voltmeter to check if the voltage between terminal L and N on the wiring board is within 210VAC~240VAC. If the reactor (L) is correctly connected? If the connection is loose or fallen? If the reactor (L) is damaged? Fault diagnosis process: Turn on the unit...
  • Page 54 Troubleshooting (2) IPM Protection, Out-of-step Fault, Compressor Phase Overcurrent (AP1 below refers to the outdoor control panel) Main check points: If the connection between control panel AP1 and compressor COMP is secure? If loose? If the connection is in correct order? If the voltage input of the machine is within normal range? (Use AC voltmeter to measure the voltage between terminal L and N on the wiring board XT) If the compressor coil resistance is normal? If the insulation of compressor coil against the copper tube is in good condition?
  • Page 55 Troubleshooting (3)High temperature and overload protection diagnosis (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: Is outdoor ambient temperature in normal range? Are the outdoor and indoor fans operating normally? Is the heat dissipation environment inside and outside the unit is good? Fault diagnosis process: Overheat and high temperature protection...
  • Page 56 Troubleshooting (4) Start-up failure (following AP1 for outdoor unit control board) Mainly detect: Whether the compressor wiring is connected correct? Is compressor broken? Is time for compressor stopping enough? Fault diagnosis process: Power on the unit Restart it up after Is stop time of the compressor 3 minutes longer than 3 minutes?
  • Page 57 Troubleshooting (5) Out of step diagnosis for the compressor (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: Whether the system pressure is too high? Whether the input voltage is too low? Fault diagnosis process: Out of step occurs in Out of step occurs once the operation unit is powered on.
  • Page 58 Troubleshooting (6)Overload and air exhaust malfunction diagnosis (following AP1 for outdoor unit control board) Mainly detect: Wether the PMV is connected well or not? Is PMV damaged? Is refrigerant leaked? Fault diagnosis process: 20 minutes after the complete unit is powered off Is the terminal FA for the Connect the...
  • Page 59 Troubleshooting (7)Power factor correct or (PFC) fault (a fault of outdoor unit) (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: Check if the reactor (L) of the outdoor unit and the PFC capacitor are broken Fault diagnosis process: Start Check wiring of the...
  • Page 60 Troubleshooting (8) Communication malfunction: (following AP1 for outdoor unit control board) Mainly detect: Is there any damage for the indoor unit mainboard communication circuit? Is communication circuit damaged? Detect the indoor and outdoor units connection wire and indoor and outdoor units inside wiring is connect well or not, if is there any damage? Fault diagnosis process: Start...
  • Page 61 Troubleshooting (9) Flow chart for outdoor communitcation circuit detecting: Start Measure voltage at the Test 10 position as shown in the diagram with a voltmeter Value jumping Measure voltage at the Test 15 position as shown in the diagram with a voltmeter Value jumping Fault with outdoor unit...

  • Page 62: Part10 Removal Procedure

    Removal Procedure 10. Removal Procedure 10.1 Removal Procedure of Indoor Unit Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. 1.Disassemble Front Panel Front Push the convex parts in the left and right sides Panel of the front panel, and then lift the front panel.
  • Page 63 Removal Procedure 5.Disassemble Water Tray Ground Screw Electric Box Cover Unscrew the ground screw on the electric box cover and loose the clasps to remove electric box cover.Pulll out the wiring terminal.Unscrew the 2 screws fixing the water tray to remove the water tray.
  • Page 64 Removal Procedure Unscrew the 2 screws in the left of evaporator Turn the evaporator at certain angle to remove it. Screw 8.Disassemble Motor and Cross Flow Fan Unscrew the screws fixing the press plate of motor and connecting motor and cross flow fan to remove the motor and cross flow fan.

  • Page 65: 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.Disassemble Big Handleand Top cover Unscrew the screw fixing the big handle,and then Top cover remove it downwards to take it out.
  • Page 66 Removal Procedure 4. Disassemble electric box subassembly screw electric box cover Unscrew the screws fixing electric box cover, lift it upward to remove the electric box cover. Unscrew the screws fixing electric box, pull out theconnection wire of compressor motor, fan motor andelectric box, lift them upward to remove the screw electricbox.
  • Page 67 Removal Procedure 7.Disassemble 4-way valve subassembly 4-way valve Weld out the 4 spot weld connect 4-way valve sub- spot weld assembly and condenser, inlet and outlet port ofcompressor, gas valve to remove the 4-way valve subassembly. Be sure weld it as soon as possible toavoid burn out the leading wire of compressor (Note:Confirm the refrigerant is out completely be- fore weldout the 4-way valve subassembly.).

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