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Summary of Contents for Gree GWH12MB-K3DNE3G
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Page 1: Service Manual
Change for Life Service Manual Model: GWH09MB-K3DNE3G GWH12MB-K3DNE3G (Refrigerant:R410A) 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 ............5 2.5 Noise Curve ..........................5 3. - Page 3 Service Manual 9. Maintenance ......................... 31 9.1 Error Code List ........................31 9.2 Troubleshooting for Main Malfunction ................. 38 9.3 Troubleshooting for Normal Malfunction ................53 ..............55 10. Exploded View and Parts’ List 10.1 Indoor Unit ......................... 55 10.2 Outdoor Unit ........................58 ....................
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Page 4: Part Ⅰ : Technical Information
Service Manual Part Ⅰ : Technical Information 1. Summary Indoor Unit: GWH09MB-K3DNE3G/I GWH12MB-K3DNE3G/I Outdoor Unit: GWH09MB-K3DNE3G/O GWH12MB-K3DNE3G/O Remote Controller: YT1F(MOTO) Technical Information... -
Page 5: Specifications
2. Specifications 2.1 Specification Sheet Model GWH09MB-K3DNE3G GWH12MB-K3DNE3G CB404003600 CB404003500 Product Code CB404003601 CB404003501 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Indoor Indoor Cooling Capacity (Min~Max) 2600(600~3200) 3500(600~3900) Heating Capacity (Min~Max) 3000(800~3600) 4000(880~4400) Cooling Power Input (Min~Max) - Page 6 Service Manual Model of Outdoor Unit GWH09MB-K3DNE3G/O GWH12MB-K3DNE3G/O Product Code of Outdoor Unit CB404W03600/CB404W03601 CB404W03500/CB404W03501 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer/Trademark CO., LTD. CO., LTD. Compressor Model QXA-A091zE190A QXA-A091zE190A Compressor Oil FVC 68EP FVC 68EP 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 Condition Condition Indoor:DB 20 °C Indoor:DB 27 °C WB19 °C Indoor air flow:Turbo Indoor air flow: Turbo Pipe length:5m Pipe length:5m Voltage:230V Voltage:230V Compressor Speed(rps) Compressor Speed(rps) 2.3 Capacity Variation Ratio According to Temperature n i l Condition Condition... -
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 connecting indoor and temperature of heat Fan speed of Fan speed of Compressor condition(°C) (DB/WB) Model revolution (rps) outdoor unit exchanger indoor unit... -
Page 9: Outline Dimension Diagram
Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit Φ55 Φ55 3.2 Outdoor Unit Unit:mm Technical Information... -
Page 10: Refrigerant System Diagram
Electron Valve Strainer expansion valve Service Manual COOLING 4. Refrigerant System Diagram Cooling and heating model Outdoor unit Indoor 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... -
Page 11: 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 12 ● Outdoor Unit TUBE OUTROOM EXHAUST TEM.SENSOR TEM.SENSOR TEM.SENSOR θ θ θ INDOOR POWER LX1-1 LX1-2 UNIT 4WAY N N(1) N(1) COMU AC-L1 HEAT2 HEAT1 OFAN TERMINAL YEGN BLOCK ELECTRIC MID.ISOLATION SHEET FAN MOTOR HEATER HEATER YEGN YEGN (COMP) (CHASSIS) The electrical NOTE: heaters are...
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Page 13: Pcb Printed Diagram
Service Manual 5.2 PCB Printed Diagram Indoor Unit ● Top view Port of Live wire Protective tube Live wire of health function Port of neutral wire Port of indoor fan Communication port Jumper Cap Auto button Feedback of indoor fan 10 Port of motor for vertical swing Port of motor for horizontal swing... - Page 14 Service Manual Outdoor Unit ● Top view inductance pin2 inductance pin1 four-wayvalve compressor electricheater chassis electric heater fan neilsbed electric expansion valve temp. sensor main chip EEPROM ● Bottom view Technical Information...
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Page 15: Function And Control
Service Manual 6. Function and Control 6.1 Remote Controller Introduction Buttons on Remote Controller ON/OFF button +/- button FAN button MODE button I FEEL button button button CLOCK button TIMER ON/TIMER OFF button button X-FAN button (Note: X-FAN is the same with BLOW) TEMP button TURBO button... - Page 16 Service Manual ● When selecting auto mode, Air conditioner will start auto operation according to indoor ambient temperature.Set temperature can’t be adjusted and will not be displayed as well. Press "FAN" button can adjust fan speed. Press " " button can adjust fan blowing angle. ●...
- Page 17 Service Manual controller blinks. Press "+" or "-"button to adjust TIMER ON setting. After each pressing "+" or "-"button, TIMER ON setting will increase or decrease 1min. Hold "+" or "-"button, 2s later, the time will change quickly until reaching your required time. Press “ TIMER ON”to confirm it. The word “ON" will stop blinking. " "...
- Page 18 Service Manual Operation Guide 1. After putting through the power, press “ON/OFF” button on remote controller to turn on the air conditioner. 2. Press "MODE" button to select your required mode:AUTO,COOL,DRY,FAN,HEAT. 3. Press “+” or “-“ button to set your required temperature. (Temperature can’t be adjusted under auto mode).
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Page 19: Brief Description Of Modes And Functions
Service Manual 6.2 Brief Description of Modes and Functions 1. Temperature Parameters Indoor preset temperature (T preset Indoor ambient temperature (T amb. 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 (3) HEAT Mode 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 If Tpreset +2°C<T amb.<...
- 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.
- Page 22 Service Manual 1.2 When the initial set temperature is 24-27°C,the temperature will rise 1°C by every hour after sleep function is set; the temperature will not change after rising 2°C;after running for 7 hours, the temperature will decrease 1°C and it will not change after that. 1.3 When the initial set temperature is 28-29°C,the temperature will rise 1°C by every hour after sleep function is set;...
- Page 23 Service Manual ① Cooling mode: in auto cooling mode or normal cooling mode, the auto fan speed will run at below mode: a. When Tamb.≥Tpreset+2°C, the indoor fan will run at high speed; b. When Tpreset<Tamb.<Tpreset+2°C, the indoor fan will run at middle speed; c.
- Page 24 Service Manual F4: Outdoor condenser sensor start and short circuit (continuously measured failure in 30S, and dont measure within 10 minutes after defrosted) F5: Outdoor exhausting sensor start and short circuit (continuously measured failure in 30S after the compressor operated 3 minutes) H3: Overload protection of compressor H5: Module protection...
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Page 25: 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 26 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 27: Installation
Service Manual 8. Installation 8.1 Installation Dimension Diagram Space to the ceiling 15cm Above Space to the wall 15cm Above 15cm Above Space to the wall 300cm Above Above Air outlet side Space to the floor The dimensions of the space necessary for correct installation of the appliance including the minimum permissible distances to adjacent structures Space to the obstruction... -
Page 28: 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 29: 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 30 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 31 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 32: Installation Of Outdoor Unit
Service Manual 8.6 Installation of Outdoor Unit Refer to the following table for wrench moment of force: 1. Fix the Support of Outdoor Unit(select it according to the Hex nut diameter(mm) Tightening torque(N m) actual installation situation) Φ6 15~20 Φ9.52 30~40 (1) Select installation location according to the house structure. -
Page 33: 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 34: Maintenance
Service Manual 9. Maintenance 9.1 Error Code List 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) - Page 35 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 36 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 37 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 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 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...
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Page 41: Troubleshooting For Main Malfunction
Service Manual 9.2 Troubleshooting for Main Malfunction 1. Malfunction of Temperature Sensor F1, F2 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... - Page 42 Service Manual 2. Malfunction of Blocked Protection of IDU Fan Motor H6 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...
- Page 43 Service Manual 3. Malfunction of Protection of Jumper Cap C5 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...
- Page 44 Service Manual 4. Malfunction of Overcurrent Protection E5 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...
- Page 45 Service Manual 5. Malfunction of Zero-crossing Inspection Circuit Malfunction of the IDU Fan Motor U8 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.
- Page 46 Service Manual 6.Capacity charging malfunction (outdoor unit malfunction) (AP1 below means control board of outdoor unit) Main detection points: ● Detect if the voltage of L and N terminal of XT wiring board is between 210VAC-240VAC by alternating voltage meter; ●...
- Page 47 Service Manual 7.IPM protection(H5), desynchronizing malfunction(H7), overcurrent of compressor phase current (P5) (AP1 below means control board of outdoor unit) Main detection points: ● Is voltage input within the normal range ● If the control board AP1 is well connected with compressor COMP? If they are loosened? If the connection sequence is correct? ●...
- Page 48 Service Manual 8.High temperature and overload protection (E8)(AP1 below means control board of outdoor unit) Main detection points: ● If the outdoor ambient temperature is in normal range; ● If the indoor and outdoor fan are running normally; ● If the radiating environment of indoor and outdoor unit is good. E8 is displayed Normal protection, please If the outdoor...
- Page 49 Service Manual 9.Start-up failure (LC) (AP1 below means control board of outdoor unit) Main detection points: ● If the compressor wiring is correct? ● If the stop time of compressor is sufficient? ● If the compressor is damaged? ● If the refrigerant charging amount is too much? Turn on the unit The stop time is not sufficient and If the stop time of compressor...
- Page 50 Service Manual 10.Overload and high discharge temperature malfunction Main detection points: ● If the electronic expansion valve is connected well? Is the electronic expansion valve damaged? ● If the refrigerant is leaked? ● The compressor overload protection terminal is not connected well with the mainboard? ●...
- Page 51 Service Manual H3 or E4 is displayed 30min after power off the unit If the overload protector SAT is well connected? Under ambient temperature, test the resistance of overload protector with ohmmeter; resistance value should be 1000ohm Connect wire If the wiring terminal FA of electronic according to wiring expansion valve is well connected? diagram...
- Page 52 Service Manual 11.PFC (correction for power factor) malfunction (outdoor unit malfunction) Main detection points: ● Check if power plug is connected well with the socket ● Check if the reactor of outdoor unit is damaged? Malfunction diagnosis process: start If power plug is connected Is the malfunction Connect the plug correctly well with the socket...
- Page 53 Service Manual 12.Communication malfunction (E6) Main detection points: ● Check if the connection wire and the built-in wiring of indoor and outdoor unit are connected well and without damage; ● If the communication circuit of indoor mainboard is damaged? If the communication circuit of outdoor mainboard (AP1) is damaged? Malfunction diagnosis process: If the unit operates normally before malfunction...
- Page 54 Service Manual 13.Flow chart for outdoor communitcation circuit detecting: (1) Test the voltage between N point of wiring board and communication cable with universal meter. The voltage shall be variable. Otherwise, it might be malfunction of mainboard of indoor unit, or malfunction of mainboard of outdoor unit, or wrong wire connection of indoor and outdoor unit.
- Page 55 Service Manual 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 Measure voltage at the Test 11 position as shown in the diagram...
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Page 56: Troubleshooting For Normal Malfunction
Service Manual 9.3 Troubleshooting for Normal Malfunction 1. Air Conditioner Can't be Started Up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether it's due to power failure. If yes, No power supply, or poor After energization, operation indicator isn’t bright wait for power recovery. - Page 57 Service Manual 4. ODU fan Motor Can't Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Connect wires according to wiring diagram to Check the wiring status according to circuit Wrong wire connection, or poor make sure all wiring terminals are connected connection diagram firmly...
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Page 58: Exploded View And Parts' List
Service Manual 10. Exploded View and Parts’ List 10.1 Indoor Unit GWH09MB-K3DNE3G/I, GWH12MB-K3DNE3G/I Installation and Maintenance... - Page 59 Description Part Code GWH09MB-K3DNE3G/I GWH12MB-K3DNE3G/I Product Code CB404N03600 CB404N03500 Front Panel 2001288801P 2001288801P Display Board 30565144 30565144 Filter Sub-Assy 1112220403 1112220403 Electric Box Cover2 2010249602 2010249602 Screw Cover 242520172 242520172 Front Case Sub-Assy 2001213923 2001213923 Axile Bush 1054203602 1054203602 Guide Louver...
- Page 60 Description Part Code GWH09MB-K3DNE3G/I GWH12MB-K3DNE3G/I Product Code CB404N03601 CB404N03501 Front Panel 2001288801P 2001288801P Display Board 30565144 30565144 Filter Sub-Assy 1112220403 1112220403 Electric Box Cover2 2010249602 2010249602 Screw Cover 242520172 242520172 Front Case Sub-Assy 2001213923 2001213923 Axile Bush 1054203602 1054203602 Guide Louver...
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Page 61: Outdoor Unit
10.2 Outdoor Unit GWH09MB-K3DNE3G/O(CB404W03600/CB404W03601) Installation and Maintenance... - Page 62 Description Part Code GWH09MB-K3DNE3G/O Product Code CB404W03600 Front Grill 22413008 Front Panel Assy 0153304801 Axial Flow Fan 10333004 Chassis Sub-assy 0280330401P Clapboard Sub-Assy 0123338502 Drainage Connecter 06123401 Compressor Gasket 76710302 4-Way Valve Assy 03073151 Valve Support 0171314201P Cut off Valve Assy 071302391 Valve 07100003...
- Page 63 Description Part Code GWH09MB-K3DNE3G/O Product Code CB404W03601 Front Grill 22413008 Front Panel Assy 0153304801 Axial Flow Fan 10333004 Chassis Sub-assy 0280330401P Clapboard Sub-Assy 0123338502 Drainage Connecter 06123401 Compressor Gasket 76710302 4-Way Valve Assy 03073151 Valve Support 0171314201P Cut off Valve Assy 071302391 Valve 07100003...
- Page 64 GWH12MB-K3DNE3G/O(CB404W03500/CB404W03501) Installation and Maintenance...
- Page 65 Description Part Code GWH12MB-K3DNE3G/O Product Code CB404W03500 Front Grill 22413008 Front Panel Assy 0153304801 Axial Flow Fan 10333004 Chassis Sub-assy 02803304P Clapboard Sub-Assy 0123338502 Drainage Connecter 06123401 Compressor Gasket 76710302 4-Way Valve Assy 03073145 Valve Support 0171314201P Cut off Valve Assy...
- Page 66 Description Part Code GWH12MB-K3DNE3G/O Product Code CB404W03501 Front Grill 22413008 Front Panel Assy 0153304801 Axial Flow Fan 10333004 Chassis Sub-assy 02803304P Clapboard Sub-Assy 0123338502 Drainage Connecter 06123401 Compressor Gasket 76710302 4-Way Valve Assy 03073145 Valve Support 0171314201P Cut off Valve Assy...
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Page 67: 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 panel Open the front panel.Push the rotor shaft on both sides of the panel to make it separate from the groove .Remove the panel. - Page 68 Service Manual Steps Procedure 4.Remove electric box assy Remove the screws of the electric box assy.Remove the screws at the joint of the earthing wire and evaporator.Loosen the clasp at the joint of the electric box cover and the electric box.Remove the 2 screws of the display.Remove the electric box assy.
- Page 69 Service Manual Steps Procedure 6.Remove motor and axial flow blade Remove screws of step motor and then remove the motor. Remove the screw of the motor press plate and then remove the press plate. Remove the screws at the joint of the cross flow blade and the motor.
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Page 70: 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. Steps Procedure 1.Remove big handle Before disassamble Remove 1 connection screw fixing big handleand then removethe big handle. - Page 71 Service Manual 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. Grille Panel 4.Remove axial flow blade...
- Page 72 Service Manual 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 73 Service Manual 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 74 Service Manual 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.
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Page 75: 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 Fahrenheit Fahrenheit Fahrenheit display display display Celsius （℃） Celsius （℃） Celsius （℃） temperature temperature temperature （℉）... -
Page 76: 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 77: Appendix 4: List Of Resistance For Temperature Sensor
Service Manual Appendix 4: List of Resistance for Temperature Sensor Resistance Table for Indoor and Outdoor Ambient Temperature Sensor(15K) Temp( ) Resistance(k ) Temp( ) Resistance(k ) Temp( ) Resistance(k ) Temp( Resistance(k ) 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6... - Page 78 Service Manual Resistance Table for Indoor and Outdoor Tube Temperature Sensor(20K) Temp( ) Resistance(k ) Temp( ) Resistance(k ) Temp( ) Resistance(k ) Temp( Resistance(k ) 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...
- Page 79 Service Manual Resistance Table of Outdoor Discharge Temperature Sensor(50K) Temp( ) Resistance(k ) Temp( ) Resistance(k ) Temp( ) Resistance(k ) Temp( Resistance(k ) 853.5 18.34 4.754 799.8 93.42 17.65 4.609 89.07 16.99 4.469 703.8 84.95 16.36 4.334 660.8 81.05 15.75 4.204 620.8...
- Page 80 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 For product improvement, specifications and appearance in this manual are subject to change without prior notice.