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Table of Contents
Related Manuals for Gree GWH09MA-K3DND3L
Summary of Contents for Gree GWH09MA-K3DND3L
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Page 1: Service Manual
Change for Life Service Manual GWH12MA-K3DNB7L Models: GWH09MA-K3DNA3L GWH12MA-K3DNC9L GWH09MA-K3DNA4L GWH09MA-K3DNB7L GWH12MA-K3DND3L (Refrigerant:R410A) GWH09MA-K3DND3L GWH09MA-K3DNC9L GWH09MA-K3DNB3L GWH12MA-K3DNA3L GWH12MA-K3DNB3L GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI... -
Page 2: Table Of Contents
Service Manual Table of Contents Part Ⅰ : Technical Information ................ 1 1. Summary ........................1 2. Specifications ......................2 2.1 Specification Sheet ......................2 2.2 Operation Characteristic Curve ..................4 2.3 Capacity Variation Ratio According to Temperature ............4 2.4 Cooling and Heating Data Sheet in Rated Frequency ............ - Page 3 Service Manual 9. Maintenance ......................... 30 9.1 Malfunction Analysis ......................30 9.2 Flashing LED of Indoor/Outdoor Unit and Primary Judgement ........... 34 9.3 How to Check Simply the Main Part ..................43 10. Exploded View and Parts List ..............56 10.1 Indoor Unit .........................
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Page 4: Part Ⅰ : Technical Information
Service Manual Part Ⅰ : Technical Information 1. Summary Indoor Unit: GWH09MA-K3DNA3L/I GWH09MA-K3DNA4L/I GWH12MA-K3DNA3L/I GWH09MA-K3DNB7L/I GWH12MA-K3DNC9L/I GWH12MA-K3DNB7L/I GWH09MA-K3DNC9L/I GWH12MA-K3DND3L/I GWH09MA-K3DNB3L/I GWH09MA-K3DND3L/I GWH12MA-K3DNB3L/I Outdoor Unit: GWH09MA-K3DNA3L/O GWH12MA-K3DNA3L/O Remote Controller: T-ON T-OFF AUTO SWING COOL SLEEP LOCK SPEED HEAT ON/OFF MODE YX1F... -
Page 5: Specifications
Service Manual 2. Specifications 2.1 Specification Sheet GWH09MA-K3DNA3L GWH09MA-K3DNA4L GWH12MA-K3DNA3L Model GWH09MA-K3DNB7L GWH09MA-K3DND3L GWH12MA-K3DNB7L GWH12MA-K3DNC9L GWH09MA-K3DNC9L GWH09MA-K3DNB3L GWH12MA-K3DND3L GWH12MA-K3DNB3L CB171010400 CB161007300 CB171010300 Product Code CB164002600 CB405004100 CB164002700 CB145005600 CB145005700 CB163007000 CB405004000 CB163007100 Rated Voltage 220-240 220-240 Power Rated Frequency Supply... - Page 6 Service Manual Model of Outdoor Unit GWH09MA-K3DNA3L/O GWH12MA-K3DNA3L/O Product Code of Outdoor Unit CB171W10400 CB171W10300 ZHUHAI GREE DAIKIN DEVICE ZHUHAI LANDA COMPRESSOR Compressor Manufacturer/Trademark CO., LTD CO., LTD Compressor Model QXA-A091zE190A 1GDY23AXD Compressor Oil 68EP FVC50K Compressor Type Rotary Rotary L.R.A.
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Page 7: Operation Characteristic Curve
Service Manual 2.2 Operation Characteristic Curve Cooling Heating 220V Conditions 220V Indoor:DB27°C/WB19°C Outdoor:DB35°C/WB24°C Indoor air flow:Super High 230V Pipe length:5m 230V 240V Conditions Indoor:DB20°C/WB15°C 240V Outdoor:DB7°C/WB6°C Indoor air flow:Super High Pipe length:5m 10 20 30 40 50 60 70 80 90 100 Compressor speed (rps) Compressor speed (rps) 2.3 Capacity Variation Ratio According to Temperature... -
Page 8: Cooling And Heating Data Sheet In Rated Frequency
Service Manual 2.4 Cooling and Heating Data Sheet in Rated Frequency Cooling: Pressure of gas pipe Inlet and outlet pipe Rated cooling Fan speed Fan speed connecting indoor temperature of heat Compressor condition( C) (DB/WB) Model of indoor of outdoor and outdoor unit exchanger revolution (rps) -
Page 9: Outline Dimension Diagram
Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit Φ55 Φ55 Unit:mm Technical Information... -
Page 10: Outdoor Unit
Service Manual 3.2 Outdoor Unit Unit:mm Unit:mm Technical Information... -
Page 11: Refrigerant System Diagram
Service Manual 4. Refrigerant System Diagram Cooling and heating model Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Accumlator Suction exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Capillary Strainer COOLING HEATING Connection pipe specification: Liquid pipe:1/4"... -
Page 12: Electrical Part
Service Manual 5. Electrical Part 5.1 Wiring Diagram ●Instruction Symbol Symbol Color Symbol Symbol Color Symbol Name White Green Jumper cap Yellow Brown COMP Compressor Blue Grounding wire YEGN Yellow/Green Black Violet Orange Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model. ●... - Page 13 Service Manual ● Outdoor Unit OUTTUBE OUTROOM EXHAUST WARNING Please don't touch any REACTOR TEMP. TEMP. TEMP. 4-WAY terminal when the machine SENSOR SENSOR SENSOR VALVE is running ,stopping or has been powered off for less than 30 minutes to prevent the risk of electric shock! VT VT (20k)
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Page 14: Pcb Printed Diagram
Service Manual 5.2 PCB Printed Diagram Indoor Unit ● Top view Name Live wire interface Fuse Fan capacitor Neutral wire interface Fan motor interface of PG Communication interface Auto button up&down swing interface Interface of PG feedback interface Jumper cap Interface of temperature sensor display interface... - Page 15 Service Manual Outdoor Unit ● Top view Name Reactor wiring terminal Compressor wiring terminal Terminal of outdoor unit temperature sensor Compressor overload protection terminal Terminal with indoor unit communication wire Terminal of power supply live wire terminal Terminal of power supply neutral wire Interface of earthing wire Terminal of outdoor fan 10 Interface of 4-way valve...
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Page 16: Function And Control
Service Manual 6. Function and Control 6.1 Remote Controller Introduction Buttons on Remote Controller ON/OFF button T-ON T-OFF MODE button AUTO SWING COOL SLEEP LOCK SPEED HEAT +/- botton MODE ON/OFF FAN button SWING button SWING SLEEP TIMER SLEEP button TIMER button Icon Display on Remote Controller Timer on Timer off... - Page 17 Service Manual When selecting auto mode, air conditioner will operate automatically according to ex-factory setting. Set temperature can't be adjusted and won't be displayed either. Press FAN button to adjust fan speed. (This function is not available in this air conditioner.) When selecting cool mode, air conditioner will operate under cool mode.
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Page 18: Replacement Of Batteries In Remote Controller
Service Manual Replacement of Batteries in Remote Controller battery 1. Press the back side of remote controller on the spot marked with , and then push out the cover of battery box along the arrow direction. 2. Replace two No.7 (AAA 1.5V) dry batteries and make sure the positions of + and -- polar are correct. -
Page 19: Brief Description Of Modes And Functions
Service Manual 6.2 Brief Description of Modes and Functions 1. Temperature Parameters Indoor preset temperature (Tpreset) ◆ Indoor ambient temperature (Tamb.) ◆ 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 20 Service Manual ① Working conditions and process of heating If Tamb.≤Tpreset +2 C, the unit enters heating mode, in which case the four-way valve, the compressor and the outdoor fan will operate simultaneously, and the indoor fan will run at preset speed in the condition of preset cold air prevention. If T amb.≥Tpreset +5 C, the compressor will stop, the outdoor fan will stop with a time lag of 30s, and the indoor fan will stop after 60-second blow at low speed...
- Page 21 Service Manual ② Protection a. In cooling operation, protection is the same as that under the cooling mode; b. In heating operation, protection is the same as that under the heating mode; c. When ambient temperature changes, operation mode will be converted preferentially. Once started, the compressor will remain unchanged for at least 6 minutes.
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Page 22: Indoor Units
Service Manual Indoor Units (1) ON/OFF Press the remote button ON/OFF: the on-off state will be changed once each time you press the button. (2) Mode Selection Press the remote button MODE, then select and show in the following ways: AUTO, COOL, DRY, FAN, HEAT, AUTO. (3) Temperature Setting Option Button Each time you press the remote button TEMP+ or TEMP-, the setting temperature will be up or down by 1 C. - Page 23 Service Manual Cooling, heating and dehumidify). If you close the light key, all the display patterns will close. ② Double-8 display According to the different setting of remote control, the nixie light may display the current temperature (the temperature scope is from 16 C to 30 C) and indoor ambient temperature.
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Page 24: Part Ⅱ : Installation And Maintenance
Service Manual Part Ⅱ : Installation and Maintenance 7. Notes for Installation and Maintenance Safety Precautions: 10. If the power cord or connection wire is not long enough, please get the specialized power cord or connection wire Important! from the manufacture or distributor. Prohibit prolong the wire by yourself. - Page 25 Service Manual Main Tools for Installation and Maintenance 1. Level meter, measuring tape 2. Screw driver 3. Impact drill, drill head, electric drill 4. Electroprobe 5. Universal meter 6. Torque wrench, open-end wrench, inner hexagon spanner 7. Electronic leakage detector 8.
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Page 26: Installation
Service Manual 8. Installation 8.1 Installation Dimension Diagram Space to the wall At least 15cm At least 15cm Space to the wall Drainage pipe Installation and Maintenance... -
Page 27: Installation Procedures
Service Manual Installation procedures 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 the support of outdoor unit Install wall-mounting (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Fix outdoor unit... -
Page 28: Installation Parts-Checking
Service Manual 8.2 Installation Parts-checking 8.4 Electric Connection Requirement Name Name 1. Safety Precaution Indoor unit Sealing gum (1) Must follow the electric safety regulations when installing Outdoor unit Wrapping tape the unit. Support of outdoor (2) According to the local safety regulations, use qualified Connection pipe unit power supply circuit and air switch. - Page 29 Service Manual in the holes. 5. Connect the Pipe of Indoor Unit (3) Fix the wall-mounting frame on the wall with tapping screws (1) Aim the pipe joint at the corresponding bellmouth.(As show (ST4.2X25TA) and then check if the frame is firmly installed by in Fig.5) pulling the frame.
- Page 30 Service Manual 7. Connect Wire of Indoor Unit 8. Bind up Pipe (1) Open the panel, remove the screw on the wiring cover and (1) Bind up the connection pipe, power cord and drain hose then take down the cover.(As show in Fig.11) with the band.(As show in Fig.14) (2) Reserve a certain length of drain hose and power cord Panel...
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Page 31: Installation Of Outdoor Unit
Service Manual 8.6 Installation of Outdoor Unit Refer to the following table for wrench moment of force: Tightening torque(N . m) Hex nut diameter(mm) 1. Fix the Support of Outdoor Unit(Select it According to Φ6 15~20 the Actual Installation Situation) Φ9.52 30~40 (1) Select installation location according to the house structure. -
Page 32: Vacuum Pumping And Leak Detection
Service Manual (3) The water outlet can't be placed in water in order to drain 8.8 Check after Installation and Test smoothly.(As show in Fig.27) Operation 1. Check after Installation Check according to the following requirement after finishing installation. The drain hose can't be fluctuant Items to be checked Possible malfunction Has the unit been... -
Page 33: Maintenance
Service Manual 9. Maintenance 9.1 Malfunction Analysis Note: When replacing the controller, be sure to 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 34 Service Manual 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 or is vacuumize it and supplement the re- insufficient frigerant as required Leakage between the high pres-...
- Page 35 Service Manual 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 or is vacuumize it and supplement the re- insufficient frigerant as required Leakage between the high pres-...
- Page 36 Service Manual The torque of the swing motor is not enough First, check whether the connection is Wrong connection The swing fan wrong. If no, replace the parts does not run. The controller is damaged(IC2003 is damaged, the swing relay can not close, etc) 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 Change controller...
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Page 37: Flashing Led Of Indoor/Outdoor Unit And Primary Judgement
Service Manual 9.2 Flashing LED of Indoor/Outdoor Unit and Primary Judgement Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF... - Page 38 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code...
- Page 39 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code...
- Page 40 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code...
- Page 41 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code...
- Page 42 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code...
- Page 43 Service Manual Display Method of Indoor Unit Display Method of Outdoor Unit Indicator Display (during Indicator has 3 kinds of display blinking, ON 0.5s and OFF status and during blinking, ON Dual-8 Malfunction A/C status Possible Causes 0.5s) 0.5s and OFF 0.5s Code Name Operation...
- Page 44 Service Manual Installation and Maintenance...
- Page 45 Service Manual Analysis or processing of some of the malfunction display: 1. Compressor discharge protection Possible causes: 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;...
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Page 46: How To Check Simply The Main Part
Service Manual 9.3 How to Check Simply the Main Part Indoor Unit (1) Malfunction of Temperature Sensor F1, F2 Main detection points: ● Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? ● Is there short circuit due to trip-over of the parts? ●... - Page 47 Service Manual 2. Malfunction of Blocked Protection of IDU Fan Motor H6 (2) Malfunction of Blocked Protection of IDU Fan Motor H6 Main.detection.points: Main detection points: SmoothlyIs.the.control.terminal.of.PG.motor.connected.tightly? ● Is the control terminal of PG motor connected tightly? SmoothlyIs.the.feedback.interface.of.PG.motor.connected.tightly? ● Is the feedback interface of PG motor connected tightly? The.fan.motor.can't.operate.
- Page 48 Service Manual (3) Malfunction of Protection of Jumper Cap C5 Main detection points: ● Is there jumper cap on the mainboard? ● Is the jumper cap inserted correctly and tightly? ● The jumper is broken? ● Detectioncircuit of the mainboard isdefined abnormal? Malfunction diagnosis process: Troubleshooting for C5 malfunction...
- Page 49 Service Manual (4) Malfunction of Zero-crossing Inspection Circuit Malfunction of the IDU Fan Motor U8 Main detection points: Instant energization afte de-energization while the capacitordischarges slowly? Malfunction diagnosis process: Troubleshooting for U8 malfunction Turn power off for 1minute,the turn back on The unit returns to normal.
- Page 50 Service Manual Outdoor Unit (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. ●Is the reactor (L) correctly connected? Is the connection loose or fallen? Is the reactor (L) damaged? Fault diagnosis process: Troubleshooting for...
- Page 51 Service Manual (2) IPM Protection, Out-of-step Fault, Compressor Phase Overcurrent (AP1 below refers to the outdoor control panel) Main check points: ●Is the connection between control panel AP1 and compressor COMP secure? Loose? Is the connection in correct order? ●Is the voltage input of the machine within normal range? (Use AC voltmeter to measure the voltage between terminal L and N on the wiring board XT) ●Is the compressor coil resistance normal? Is the insulation of compressor coil against the copper tube in good condition? ●Is the working load of the machine too high? Is the radiation good?
- Page 52 Service Manual (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 good? Fault diagnosis process: Overheat and high temperature protection...
- Page 53 Service Manual (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 54 Service Manual (5) Out of step diagnosis for the compressor (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: ●Is the system pressure too high? ●Is the input voltage too low? Fault diagnosis process: Out of step occurs in Out of step occurs once the operation unit is powered on.
- Page 55 Service Manual (6)Overload and air exhaust malfunction diagnosis (following AP1 for outdoor unit control board) Mainly detect: ●Is the PMV 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 56 Service Manual (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 57 Service Manual (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 58 Service Manual (9) Malfunction of Overcurrent Protection E5 5. Malfunction of Overcurrent Protection Main detection points: Main detection points: ● Is the supply voltage unstable with big fluctuation? Is the supply voltage too low with overload? ● Is the supply voltage too low with overload? Hardware trouble? ●...
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Page 59: Exploded View And Parts List
Service Manual 10. Exploded View and Parts List 10.1 Indoor Unit T-ON T-OFF AUTO SWING COOL SLEEP LOCK SPEED HEAT ON/OFF MODE SWING SLEEP TIMER Installation and Maintenance... - Page 60 Service Manual Part Code Description GWH09MA-K3DNA3L/I GWH12MA-K3DNA3L/I Product Code CB171N10400 CB171N10300 Front Panel Sub-Assy 20012241 20012241 Front Panel 20012121S 20012121S Filter Sub-Assy 11122081 11122081 Screw Cover 24252016 24252016 Electric Box Cover2 20122075 20122075 Front Case 20012120C 20012120C Axile Bush 10542036 10542036 Guide Louver 10512111...
- Page 61 Service Manual Part Code Description GWH09MA-K3DNA4L/I GWH09MA-K3DNB7L/I Product Code CB161N07300 CB164N02600 Front Panel Sub-Assy 2001217601 20012835 Front Panel 20012151S 20012322S Filter Sub-Assy 11122081 11122081 Screw Cover 24252016 24252016 Electric Box Cover2 20122075 20122075 Front Case 20012120C 20012179C Axile Bush 10542036 10542036 Guide Louver 10512111...
- Page 62 Service Manual Part Code Description GWH12MA-K3DNB7L/I GWH12MA-K3DNC9L/I Product Code CB164N02700 CB145N05600 Front Panel Sub-Assy 20012835 20012753 Front Panel A2 20012322S 20012690 Filter Sub-Assy 11122081 11122081 Screw Cover 24252016 24252016 Electric Box Cover2 20122075 20122075 Front Case 20012179C 20012120C Axile Bush 10542036 10542036 Guide Louver...
- Page 63 Service Manual Part Code Description GWH12MA-K3DND3L/I GWH09MA-K3DND3L/I Product Code CB405N04000 CB405N04100 Front Panel Sub-Assy 20012967 20012967 Front Panel A2 Filter Sub-Assy 11122081 11122081 Screw Cover 24252016 24252016 Electric Box Cover2 20122075 20122075 Front Case 20012179C 20012179C Axile Bush 10542036 10542036...
- Page 64 Service Manual Part Code Description GWH09MA-K3DNC9L/I GWH09MA-K3DNB3L/I Product Code CB145N05700 CB163N07000 Front Panel Sub-Assy 20012753 2001227802 Front Panel 20012690T 20012201S Filter Sub-Assy 11122081 11122081 Screw Cover 24252016 24252016 Electric Box Cover2 20122075 20122075 Front Case 20012120C 20012179C Axile Bush 10542036 10542036 Guide Louver 10512111...
- Page 65 Service Manual Part Code Description GWH12MA-K3DNB3L/I Product Code CB163N07100 Front Panel Sub-Assy 2001227802 Front Panel 20012201S Filter Sub-Assy 11122081 Screw Cover 24252016 Electric Box Cover2 20122075 Front Case 20012179C Axile Bush 10542036 Guide Louver 10512111 Air Louver 1 10512113 Air Louver 2 10512114 Helicoid Tongue 26112162...
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Page 66: Outdoor Unit
Service Manual 10.2 Outdoor Unit GWH09MA-K3DNA3L/O Installation and Maintenance... - Page 67 Service Manual Part Code Description GWH09MA-K3DNA3L/O Product Code CB171W10400 Front Grill 22413043 Cabinet Sub-assy 0000030001510 Axial Flow Fan 10333004 Electrical Heater Chassis Sub-assy 02803037P Clapboard Sub-Assy 0123338502 Drainage Connecter 06123401 Compressor and Fittings 0010389601 4-Way Valve Assy 03073151 Valve Support 01713142P Cut off Valve Assy 07133474...
- Page 68 Service Manual GWH12MA-K3DNA3L/O 23 24 Installation and Maintenance...
- Page 69 Service Manual Part Code Description GWH12MA-K3DNA3L/O Product Code CB171W10300 Left Side Plate 01303200P Fan Motor 15013085 Motor Support 01703136 Condenser Assy 01100200426 Top Cover Sub-Assy 01253081 Rear Grill 01475014 Clapboard Sub-Assy 01233180 Compressor and Fittings 0010389201 Compressor Gasket 76713027 4-Way Valve Assy 03073386 Big Handle 2623343106...
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Page 70: Removal Procedure
Service Manual 11. Removal Procedure Caution: discharge the refrigerant completely before removal. 11.1 Removal Procedure of Indoor Unit Steps Procedure 1. Remove fi lter Open the panel. Panel Loosen the clasp shown in the fig and then pull the left filter and right filer outwards to remove them. - Page 71 Service Manual Steps Procedure 3. Remove panel Panel Open the front panel; separate the panel Front panel rotation shaft from the groove fixing the front panel and then removes the front panel. Note: Panel rotation The display of some models is fixed on the panel;...
- Page 72 Service Manual Steps Procedure 6. Remove vertical louver Loosen the connection clasps between vertical louver and bottom case to remove vertical louver. Bottom case Vertical louver Clasps 7. Remove electric box assy Loosen the connection clasps between shield cover of electric box sub-assy and electric box, and then remove the shield cover of electric box sub-assy.
- Page 73 Service Manual Steps Procedure Remove two screws fi xing display. Note: The display of some models is fixed on the panel; unscrew the screws fixing the display on the panel before removing the Display Screws panel. Screws Remove the screw fi xing electric box assy and then remove the electric box assy.
- Page 74 Service Manual Steps Procedure 9. Remove stepping motor Step motor Screws Remove the screw fi xing step motor and then remove the step motor. 10. Remove motor and cross fl ow blade Remove the screws fixing motor clamp and then remove the motor clamp. Motor clamp Cross fl...
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Page 75: Removal Procedure Of Outdoor Unit
Service Manual 11.2 Removal Procedure of Outdoor Unit Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal. GWH09MA-K3DNA3L/O Steps Procedure 1.Remove big handle Before disassamble Remove 1 connection screw fixing big handleand then removethe big handle. - Page 76 Service Manual Steps Procedure 3.Remove grille and front panel Remove connection screws between the front grille and the front panel. Then remove the front grille. Remove connection screws connecting the front panel with the chassis and the motor support, and then remove the front panel.
- Page 77 Service Manual Steps Procedure 6.Remove electric box assy Electric box assy Remove the 2 screws fixing the cover of elec- tric box. Lift to remove the cover. Loosen the wire and disconnect the terminal. Lift to re- move the electric box assy. 7.Remove 4-way valve assy Unscrew the fastening nut of the 4-way Valve 4-way Valve Assy...
- Page 78 Service Manual Steps Procedure 9.Remove motor and motor support Motor support Remove the 4 tapping screws fixing the motor. Pull out the lead-out wire and remove the Motor motor. Remove the 2 tapping screws fixing the motor support. Lift motor support to re- move it.
- Page 79 Service Manual Steps Procedure 11.Remove Compressor Remove the 2 screws fixing the gas valve. Unsolder the welding spot connecting gas valve and air return pipe and remove the gas valve. (Note: it is necessary to warp the gas valve when unsoldering the welding spot.) Remove the 2 Liquid valve screws fixing liquid valve.
- Page 80 Service Manual GWH12MA-K3DNA3L/O Steps Procedure 1. Before disassembly 2. Remove big handle and valve cover big handle Remove the connection screw fixing the big handle and then remove the valve cover. valve cover 3. Remove top cover top cover Remove connection screws connecting the top panel with the front panel and the right side plate, and then remove the top panel.
- Page 81 Service Manual Steps Procedure 4. Remove grille Remove connection screws between the front grille and the front panel. Then remove the grille. grille 5. Remove front panel Remove connection screws connecting the front panel with the chassis and the motor support and then remove the front panel.
- Page 82 Service Manual Steps Procedure 8. Remove motor and motor support motor support Remove the tapping screws fixing the motor and disconnect the leading wire insert of the motor. Then remove the motor. Remove the tapping screws fixing the motor motor support and lift the motor support to remove it.
- Page 83 Service Manual Steps Procedure Remove the 2 screws fixing the gas valve and unsolder the welding joint between the gas valve and the air-return pipe to remove the gas valve. (NOTE: Discharge the refrigerant completely before unsoldering; when unsoldering, wrap the gas valve with a wet cloth completely to avoid damage to the valve caused by high 4-way valve...
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Page 84: Appendix
Service Manual Appendix: Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit Fahrenheit Fahrenheit display Fahrenheit display Fahrenheit display Fahrenheit Celsius （℃） Celsius （℃） Celsius （℃） temperature temperature temperature （℉）... -
Page 85: Appendix 3: Pipe Expanding Method
Service Manual Appendix 3: Pipe Expanding Method Pipe Note: Pipe cutter Improper pipe expanding is the main cause of refrigerant leakage.Please expand the pipe according to the following steps: Leaning Uneven Burr A:Cut the pip ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ●... -
Page 86: Appendix 4: List Of Resistance For Temperature Sensor
Service Manual Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units (15K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6 17.14 3.579... - Page 87 Service Manual Resistance Table of Tube Temperature Sensors for Outdoor and Indoor (20K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9 4.443 1.269 137.2...
- Page 88 Service Manual Resistance Table of Discharge Temperature Sensor for Outdoor (50K) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) 853.5 18.34 4.75 799.8 93.42 17.65 4.61 89.07 16.99 4.47 703.8 84.95 16.36 4.33 660.8 81.05 15.75 4.20 620.8 77.35 15.17 4.08...
- Page 89 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...