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Summary of Contents for GREE ELECTRIC GWH07AAB-K3DNA3A
- Page 1 Change for life Service Manual Models: GWH07AAB-K3DNA3A GWH07AAB-K3DNA5A (Refrigerant R410A) GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI...
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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 ......................35 9.1 Malfunction Analysis .......................35 9.2 Flashing LED of Indoor/Outdoor Unit and Primary Judgement ........39 9.3 How to Check Simply the Main Part ................48 9.3 Maintenance method for normal malfunction ..............61 10. Exploded View and Parts List ..............63 10.1 Indoor Unit ........................63 10.2 Outdoor Unit .........................65...
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Page 4: Part Ⅰ : Technical Information
Service Manual Part Ⅰ : Technical Information 1. Summary Indoor Unit: GWH07AAB-K3DNA5A/I GWH07AAB-K3DNA3A/I Outdoor Unit: GWH07AAB-K3DNA5A/O Remote Controller: YAN1F6(WiFi) Technical Information... -
Page 5: Specifications
Service Manual 2. Specifications 2.1 Specification Sheet GWH07AAB-K3DNA3A Model GWH07AAB-K3DNA5A CB478000800 Product Code CB488001300 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 2200 Heating Capacity 2300 Cooling Power Input Heating Power Input Cooling Power Current... - Page 6 Service Manual Model of Outdoor Unit GWH07AAB-K3DNA5A/O Product Code of Outdoor Unit CB488W01300 Compressor Manufacturer/Trademark Shanghai Hitachi Electrical Appliances Co.,Ltd. Compressor Model ASA725SPMA6JK Compressor Oil Α68HES-H or equivaquent Compressor Type Rotary L.R.A. 14.5 Compressor RLA 2.71 Compressor Power Input Overload Protector Throttling Method Capillary Operation Temp...
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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 condition( C) (DB/WB) Model of indoor of outdoor and outdoor unit exchanger unit unit... -
Page 9: Outline Dimension Diagram
Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit Φ55 Φ55 Unit:mm Models Technical Information... -
Page 10: Outdoor Unit
Service Manual 3.2 Outdoor Unit Technical Information... -
Page 11: Refrigerant System Diagram
side Valve Capillary Strainer Service Manual 4. Refrigerant System Diagram COOLING 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 Capillary... -
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 GWH07AAB-K3DNA3A/I 60000700097301 ● Outdoor Unit 600007000298 These wiring diagrams are subject to change without notice; please refer to the one supplied with the unit. Technical Information...
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Page 14: Pcb Printed Diagram
Service Manual 5.2 PCB Printed Diagram Indoor Unit ● Top view Name Wifi interface Jumper cap Interface of health function live wire Live wire interface Interface of health function neutral wire Neutral wire interface Fan motor interface of PG Fuse Communication interface 10 Auto button 11 Interface of PG feedback interface... - Page 15 Service Manual Outdoor Unit ● Top view Name Interface of main programme Monitor terminal for neutral wire and live wire Terminal of electronic expansion valve Terminal of outdoor unit temperature sensor Module terminal of fan Interface of 4-way valve Communication wire Live wire Neutral wire 10 Grounding wire...
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Page 16: Function And Control
Service Manual 6. Function and Control 6.1 Remote Controller Introduction ON/OFF button MODE button FAN button SWING button TURBO button ▲/ button SLEEP button TEMP button WiFi button LIGHT button CLOCK button TIMER ON / TIMER OFF button Introduction for icons on display screen Set fan speed I feel Send signal... - Page 17 Service Manual 1. ON/OFF button Press this button to turn on the unit. Press this button again to turn off the unit. 2. MODE button Press this button to select your required operation mode. AUTO COOL HEAT ● When selecting auto mode, air conditioner will operate automatically according to ex-factory setting. Set temperature cant be adjusted and will not be displayed as well.
- Page 18 Service Manual 6. ▲/ button ● Press "▲" or " " button once increase or decrease set temperature 1℃ . Holding "▲" or " " button, 2s later, set temperature on remote controller will change quickly. On releasing button after setting is finished, temperature indicator on indoor unit will change accordingly. (Temperature cant be adjusted under auto mode) ●...
- Page 19 Service Manual Note: ● Under on and off status, you can set TIMER OFF or TIMER ON simultaneously. ● Before setting TIMER ON or TIMER OFF, please adjust the clock time. ● After starting up TIMER ON or TIMER OFF, set the constant circulating valid. After that, air conditioner will be turned on or turned off according to setting time.
- Page 20 Service Manual Replacement of batteries in remote controller signal sender battery 1. Press the back side of remote controller marked with " ", as shown in the fig, and then push out the cover of battery box along the arrow direction. 2.
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Page 21: Gree+ App Operation Manual
Service Manual 6.2 GREE+ App Operation Manual Control Flow Chart Internet Gree Cloud Gree Cellular/ Home Wi-Fi intelligent home Other Wi-FI appliances Home wireless router Home Wi-Fi GREE+ APP Operating Systems Requirement for User's smart phone: iOS system Android system Support iOS7.0 and Support Android 4.4 and above version... -
Page 22: Ewpe Smart App Operation Manual
Service Manual 6.3 Ewpe Smart App Operation Manual Control Flow Chart Internet Cloud intelligent Cellular/ Home Wi-Fi home Other Wi-FI appliances Home wireless router Home Wi-Fi Operating Systems Requirement for User's smart phone: iOS system Android system Support iOS7.0 and Support Android 4.4 and above version above version... -
Page 23: Brief Description Of Modes And Functions
Service Manual 6.4 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 24 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 25 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 26 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 27 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 28: 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 29 Service Manual To ensure safety, please be mindful of the following precautions. ●When installing or relocating the unit, be sure to keep the refrigerant circuit free from air or substances other than the specified refrigerant. Any presence of air or other foreign substance in the refrigerant circuit will cause system pressure rise or compressor rupture, resulting in injury.
- Page 30 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 31: Installation
Service Manual 8. Installation 8.1 Installation Dimension Diagram Space to the wall Space to the wall At least 15cm At least 15cm Drainage pipe Installation and Maintenance... - Page 32 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...
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Page 33: Installation Parts-Checking
Service Manual 8.2 Installation Parts-Checking 8.4 Requirements for electric connection 1. Safety Precaution Name Name (1) Must follow the electric safety regulations when installing Indoor unit Sealing gum the unit. Outdoor unit Wrapping tape (2) According to the local safety regulations, use qualified Support of outdoor power supply circuit and air switch. - Page 34 Service Manual (3) Fix the wall-mounting frame on the wall with tapping screws 5. Connect the Pipe of Indoor Unit (ST4.2X25TA) and then check if the frame is firmly installed by (1) Aim the pipe joint at the corresponding bellmouth.(As show pulling the frame.
- Page 35 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 for installation when binding them.
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Page 36: 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) 1. Fix the Support of Outdoor Unit(Select it according to Hex nut diameter(mm) the actual installation situation) Φ6 15~20 Φ9.52 30~40 (1) Select installation location according to the house structure. -
Page 37: Vacuum Pumping And Leak Detection
Service Manual (3) The water outlet cant 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 38: 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 39 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 40 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 41 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 42: Flashing Led Of Indoor/Outdoor Unit And Primary Judgement
Service Manual 9.2 Flashing LED of Indoor/Outdoor Unit and Primary Judgement Dual-8 Malfunction Code A/C status Possible Causes Name Display During cooling and drying Possible reasons: High operation, except indoor 1. Refrigerant was superabundant; pressure fan operates, all loads stop 2. - Page 43 Service Manual When the outdoor unit receive signal of Gathering refrigerant Gathering ,the system will be forced to Nominal cooling mode refrigerant run under cooling mode for gathering refrigerant 1. Loosening or bad contact of indoor ambient temp. sensor and Indoor During cooling and drying mainboard terminal.
- Page 44 Service Manual Decrease Overload or temperature is too All loads operate normally, frequency high; while due to operation frequency for high air Malfunction of electric expansion compressor is decreased discharge valve (EKV) Limit/ decrease All loads operate normally, Poor air-return in indoor unit or fan frequency while operation frequency for speed is too low...
- Page 45 Service Manual Compressor intermediate Showing during middle cooling or frequence in middle heating test test state During cooling and drying Overcurrent Refer to the malfunction operation, compressor will stop protection of analysis (IPM protection, loss while indoor fan will operate; phase of synchronism protection and During heating operation, the...
- Page 46 Service Manual During cooling and drying operation, compressor will stop Refer to the malfunction analysis System is while indoor fan will operate; (overload, high temperature abnormal During heating operation, the resistant) complete unit will stop operation. During cooling and drying Refer to the malfunction operation, compressor will stop analysis (IPM protection, loss...
- Page 47 Service Manual Malfunction of During cooling and drying phase current operation, compressor will stop detection while indoor fan will operate; Replace outdoor control panel AP1 circuit for During heating operation, the compressor complete unit will stop During cooling and drying Malfunction of operation, compressor will stop voltage...
- Page 48 Service Manual Defrosting will occur in heating mode. Compressor will Defrosting Its the normal state operate while indoor fan will stop operation. 1. Discharging speed of Zero-crossing capacitor is slow, which lead inspection to wrong judgement of circuit malfun- controller. ction of the Refer to maintenance flowchart IDU fan motor...
- Page 49 Service Manual Installation and Maintenance...
- Page 50 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 51: 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 52 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? The.fan.motor.can't.operate. ● Is the feedback interface of PG motor connected tightly? The.motor.is.broken? ●...
- Page 53 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 54 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 55 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 56 Service Manual 5. IPM protection, phase current overcurrent (the control board as below indicates the control board of outdoor unit) H5/P5 Mainly detect: (1) Compressor COMP terminal (2) voltage of power supply (3) compressor (4) Refrigerant-charging volume (5) air outlet and air inlet of outdoor/indoor unit Troubleshooting: Turn on the unit after energization...
- Page 57 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 58 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 59 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 60 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 61 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 62 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 63 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 64: Maintenance Method For Normal Malfunction
Service Manual 9.3 Maintenance method for normal malfunction 1. Air Conditioner Cant be Started Up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether its due to power failure. If yes, No power supply, or poor After energization, operation indicator isnt bright wait for power recovery. - Page 65 Service Manual 4. ODU Fan Motor Cant Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Connect wires according to wiring diagram to Wrong wire connection, or poor Check the wiring status according to circuit make sure all wiring terminals are connected connection diagram firmly...
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Page 66: Exploded View And Parts List
Service Manual 10. Exploded View and Parts List 10.1 Indoor Unit The component picture is only for reference; please refer to the actual product. Installation and Maintenance... - Page 67 Service Manual Part Code Description GWH07AAB-K3DNA5A/I GWH07AAB-K3DNA3A/I Product Code CB488N01300 CB478N00800 Front Panel 200003000117T01 200003000110T Display Board 300001000041 300001000041 Front Case 20000200000701 20000200000701 Axile Bush 10542036 10542036 Helicoid Tongue 200006000002 200006000002 Left Axile Bush 10512037 10512037 Rear Case assy 000001000004...
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Page 68: Outdoor Unit
Service Manual 10.2 Outdoor Unit The component picture is only for reference; please refer to the actual product. Installation and Maintenance... - Page 69 Service Manual Part Code Description GWH07AAB-K3DNA5A/O Product Code CB488W01300 Front Panel 01533255P Front Grill 200057000001 Small Handle 26233100 Axial Flow Fan 10333002 Brushless DC Motor 1501308514 Motor Support Sub-Assy 01703204 Top Cover Plate 01253045P Condenser Assy 011002060123 Rear Grill 01473041 Electric Box Cover 01413159 Main Board...
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Page 70: Removal Procedure
Service Manual 11. Removal Procedure Caution: discharge the refrigerant 11.1 Removal Procedure of Indoor Unit completely before removal. Step Procedure 1. Remove filter Panel Open the 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 Step Procedure 3. Remove panel Panel Display Open the front panel; separate the panel rotation shaft from the groove fixing the front panel and then removes the front panel. Note: The display of some models is fixed on Screws display on the panel before removing the panel.
- Page 72 Service Manual Step Procedure Cold plasma generator 6. Remove electric box assy Screws Loosen the connection clasps between Cold plasma generator and electric box, and then remove the cold plasma generator. Electric box Step motor Clasps Grounding Indoor tube screw temperature sensor Electric box assy ①...
- Page 73 Service Manual Step Procedure 7. Remove evaporator assy Remove 3 screws fixing evaporator assy. Screws Connection pipe clamp At the back of the unit, Loosen the clasp,connection pipe clamp and then remove the connection pipe clamp. Clasp Groove Rear Case assy First remove the left side of evaporator from Clasp the groove of bottom shell and then remove...
- Page 74 Service Manual Step Procedure 8. Remove motor and cross flow blade Remove 3 screws fixing motor clamp and then remove the motor clamp. Motor clasp Screws Cross flow Remove the at the connection place of Motor cross flow blade and motor; lift the motor and cross flow blade upwards to remove them.
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Page 75: Removal Procedure Of Outdoor Unit
Service Manual 11.2 Removal Procedure of Outdoor Unit Steps 1.Remove big handle Before disassembly. Remove the screw fixing the big handle. Remove the big handle. big handle 2.Remove top cover top panel Remove the screws connecting the top panel with the front panel and right side panel. - Page 76 Service Manual Steps Procedure 3.Remove front grille and front panel Remove the 5 screws connecting the front grille with front panel. Remove front grille. Screws Remove the 5 screws connecting the front panel with the chassis and the motor support. Remove the front panel.
- Page 77 Service Manual Steps Procedure 5. Remove axial flow blade and motor Remove the nut on the blade. Remove the axial Axial flow blade flow blade. Motor support Remove the tapping screws fixing the motor; disconnect the leading wire insert of the motor. Remove the motor.
- Page 78 Service Manual Steps Procedure 7. Remove soundproof sponge Remove the soundproof sponge wrapping the compressor. Soun dproof sponge 8. Remove clapboard Screws Remove the 2 screws to remove the clapboard. Clapboard 9. Remove magnet moil Remove the screw fixing the magnet moil.
- Page 79 Service Manual Steps Procedure 10. Remove compressor Remove the 2 screws fixing the gas valve. Unsolder the welding joint connecting the gas valve and the air-return pipe. Remove the gas valve. (NOTE: when unsoldering, wrap the gas valve with a wet cloth completely to avoid damage to the valve Liquid valve caused by high temperature.) Remove the 2 screws fixing the liquid valve.
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Page 80: 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 60.8 69/70 69.8 78/79 78.8 62/63... -
Page 81: Appendix 2: Pipe Expanding Method
Service Manual Appendix 2: 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 82: 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 (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 1.009... - Page 83 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 84 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 85 Add: West Jinji Rd, Qianshan, Zhuhai,Guangdong, China, 519070 Tel: (+86-756) 8522218 Fax: (+86-756) 8669426 E-mail: gree@gree.com.cn 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.
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