Related Manuals for Gree GVA24AL-K3NNC7A/I
Summary of Contents for Gree GVA24AL-K3NNC7A/I
- Page 1 Change for life Service Manual Models: GVA24AL-K3NNC7A GVA48AL-M3NNC7A GVA55AL-M3NNC7A (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 ..................8 2.3 Cooling Data Sheet in Rated Frequency ................8 2.4 Noise Curve ........................9 3. Outline Dimension Diagram ..............10 3.1 Indoor Unit ........................10 3.2 Outdoor Unit ........................ - Page 3 Service Manual 9. Maintenance ......................40 9.1 Error Code List .......................40 9.2 Procedure of Troubleshooting ..................44 9.3 Maintenance Method for Normal Malfunction ..............53 10. Exploded View and Parts List ..............55 10.1 Indoor Unit ........................55 10.2 Outdoor Unit .........................59 11. Removal Procedure ..................63 11.1 Removal Procedure of Indoor Unit ................63 11.2 Removal Procedure of Outdoor Unit ................78...
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Page 4: Part Ⅰ : Technical Information
Service Manual Part Ⅰ : Technical Information 1. Summary Indoor Unit: GVA24AL-K3NNC7A/I GVA48AL-M3NNC7A/I GVA55AL-M3NNC7A/I Outdoor Unit: GVA48AL-M3NNC7A/O GVA55AL-M3NNC7A/O GVA24AL-K3NNC7A/O Remote Controller: YAP1F4(WiFi) Technical Information... -
Page 5: Specifications
12.09 Air Flow Volume(SH/H/M/L/SL) 1100/1000/900/800/- Dehumidifying Volume 2.50 2.90 3.32 SEER HSPF Application Area 32-50 Model of indoor unit GVA24AL-K3NNC7A/I Product Code CG156N00200 Fan Type Centrifugal Diameter Length(DXL) Φ350X130.5 Fan Motor Cooling Speed(SH/H/M/L/SL) r/min 450/415/380/345/- Fan Motor Heating Speed(SH/H/M/L/SL) r/min... - Page 6 Service Manual Model of Outdoor Unit GVA24AL-K3NNC7A/O Product Code CG156W00200 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXAS-F255N450 Compressor Oil RB68EP or FVC68D or FV50S Compressor Type Rotary L.R.A. 53.00 Compressor RLA 9.40 Compressor Power Input 2060 Overload Protector UP14PE5245 Throttling Method Capillary...
- Page 7 Service Manual Parameter Unit Value Model GVA48AL-M3NNC7A Product Code CG156000300 Rated Voltage 380-415 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 14100 Heating Capacity 15500+3500 Cooling Power Input 5000 Heating Power Input 4830 Cooling Power Current Heating Power Current 9.56 Rated Input 9500...
- Page 8 Service Manual Model of Outdoor Unit GVA48AL-M3NNC7A/O Product Code CG156W00300 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXAS-H59sN330A Compressor Oil FW68DA Compressor Type Rotary L.R.A. 72.00 Compressor RLA 9.00 Compressor Power Input 4900 Overload Protector UP14PE5245 Throttling Method Capillary Operation Temp ºC...
- Page 9 Service Manual Parameter Unit Value Model GVA55AL-M3NNC7A Product Code CG156000100 Rated Voltage 380-415 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 15200 Heating Capacity 17000+3500 Cooling Power Input 5410 Heating Power Input 5290 Cooling Power Current 11.72 Heating Power Current 11.24 Rated Input...
- Page 10 Service Manual Model of Outdoor Unit GVA55AL-M3NNC7A/O Product Code CG156W00100 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXAS-H64sN330 Compressor Oil FW68DA Compressor Type Rotary L.R.A. 85.00 Compressor RLA 10.60 Compressor Power Input 5450 Overload Protector UP18WA12R-220 Throttling Method Capillary Operation Temp ºC...
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Page 11: Operation Characteristic Curve
Service Manual 2.2 Operation Characteristic Curve Cooling Heating Conditions Conditions Indoor:DB27°C/WB19°C Indoor:DB20°C/WB15°C Indoor air flow:Super High Indoor air flow:Super High Pipe length: 5m Pipe length: 5m Outdoor temp.(°C) Outdoor temp.( 2.3 Cooling Data Sheet in Rated Frequency Cooling: Pressure of gas pipe Rated cooling condition(°C) Inlet and outlet pipe Fan speed... -
Page 12: Noise Curve
Service Manual 2.4 Noise Curve Indoor side noise when blowing High Super High Middle Indoor fan motor rotating speed Technical Information... -
Page 13: Outline Dimension Diagram
Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit Unit:mm Model 1770 48/55K 1882 Technical Information... -
Page 14: Outdoor Unit
Service Manual 3.2 Outdoor Unit Unit:mm 48K/55K 1250 1032 Unit:mm Technical Information... -
Page 15: Refrigerant System Diagram
(condenser) Liquid pipe side Service Manual Valve Capillary Strainer 4. Refrigerant System Diagram Cooling and heating model COOLING 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... -
Page 16: Electrical Part
Service Manual 5. Electrical Part 5.1 Wiring Diagram ● Instruction Symbol Symbol Color Symbol Symbol Color Symbol Name Yellow Brown COMP Compressor Blue Grounding wire YEGN Yellow/Green Black Indoor Unit ● 600007001381 Technical Information... - Page 17 Service Manual 48/55K 600007001208 Technical Information...
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Page 18: Technical Information
Service Manual ● Outdoor Unit ROOM TUBE SHIELDING TEMP. TEMP. TRANSFORMER RESISTOR SENSOR SENSOR YEGN 4-WAY VALVE TERMINAL BLOCK 4WAY N(1) T-PIPE OUTROOM OUTTUBE TR-IN TR-OUT COM-INNER AC-L AP1 PRINTED CIRCUIT BOARD JUMP OFAN COMP A1/0 T1/4 CAP. HIGH PRESSURE CAP. -
Page 19: Pcb Printed Diagram
Service Manual 5.2 PCB Printed Diagram Indoor unit Top view Terminal with outdoor unit communication wire Netural wire Iive wire Fuse Heater Iive wire Needle stand for indoor fan Up&down swing interface Left&right swing interface Temperature sensor Display board Bottom view Technical Information... - Page 20 Service Manual 48/55K Top view Compressor wiring terminal Fuse Interface of netural wire Interface of live wire Needle stand for indoor fan Needle stand of simulation port Live wire terminal of E-heater1 Fuse of E-heater1 Live wire terminal of E-heater2 Fuse of E-heater2 Live wire terminal of E-heater3 Fuse of E-heater3...
- Page 21 Service Manual Outdoor unit Top view Current mutual-inductor L1 Current mutual-inductor L2 Terminal for outdoor tube temperature sensor Terminal for outdoor ambient temperature sensor Terminal for outdoor discharge temperature sensor Interface of high pressure switch Interface of low pressure switch Output terminal of transformer Input terminal of transformer Terminal of outdoor fan...
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Page 22: Function And Control
Service Manual 6. Function and Control 6.1 Function Buttons of Air Conditioner Button’s Name and Function ON/OFF button MODE button FAN button FUNCTION button ▼/▲ button ON/OFF button MODE FUNC. Introduction for icons on display screen of air conditioner Ambient temperature Timer Operation or set temperature... - Page 23 Service Manual Button’s introduction ▼/▲ button After each pressing of "▲" or "▼" button, set temperature will increase or decrease . Temperature adjustment range is . This button is invalid under auto mode. Timer setting can be set in 1h increment among 0~24h. When it is adjusted to auxiliary heating function setting through Function button,press this button to turn on or turn off auxiliary heating.
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Page 24: Remote Control Operations
Service Manual 6.2 Remote Control Operations Buttons on remote controller ON/OFF button SAVE button FAN button MODE button ▲/ button HEAT button COOL button button button SLEEP button WiFi button X-FAN/E-HEATER button QUIET button LIGHT button TIMER button Introduction for icons on display screen Set fan speed fan speed. - Page 25 Service Manual ON/OFF button Press this button can turn on or turn off the air conditioner. After turning on the air conditioner, indoor unit will give out a sound. SAVE button Under cooling mode, press this button to start up or turn off energy-saving function.When energy-saving function is started up, "SE"...
- Page 26 Service Manual button Under simple swing mode, pres this button can turn on (" " icon is displayed) or turn off (" " icon is not displayed) the left&right swing function. When the unit is turned off by remote controller, press "▲" button and " "...
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Page 27: Child Lock Function
Service Manual QUIET button Press this button can turn on or turn off QUIET function. This function is not available for this unit. LIGHT button Press this button to turn off display light on indoor unit. Press this button again to turn on display light. TIMER button ▲... -
Page 28: Introduction Of Each Mode Function
Service Manual 6.3 Introduction of Each Mode Function 1.Summary Temperature parameter ◆ Indoor set temperature (Tpreset) ◆ Indoor ambient temperature (Tamb.) ◆ Inner tube temperature of indoor evaporator (Ttube) 2. Introduction of basic mode function Once the compressor is energized, there should be a minimum interval of 3 mins between two start-ups. If the unit is with memory function and is off before power failure, the compressor can be restarted without an interval of 3 mins;... - Page 29 Service Manual fan motor operates at low speed. ◆ When Tamb. ＜ Tset-2℃ , the compressor and the ODU fan motor stop, while the IDU fan motor runs at low speed. In drying mode, the 4-way valve is de-energized (4-way valve is not available for cooling only unit); Temperature setting range is 16 ～...
- Page 30 Service Manual 3 Other control function introductions (1) Swing function (the unit is with up&down swing and left&right swing) a. Up&down swing control ① After energization, swing motor will firstly have the horizontal louver rotate anticlockwise to position O to close air outlet. If swing function has not been set after start-up of the unit, horizontal louver will turn clockwise to position D in heating mode, or turn clockwise to position L in other modes.
- Page 31 Service Manual status. Timer setting range is 0.5 ～ 24hr in 30-minute increments. Timer OFF: Timer OFF can be set at unit ON. If selected OFF time is reached, the unit will stop. Timer setting range is 0.5 ～ 24hr in 30-minute increments.
- Page 32 Service Manual (7) Indoor high temperature protection (applicable for heating and auto mode) When IDU fan motor is in turbo or high fan speed and Ttube≥56℃ , ODU fan motor stops operation; when Ttube≤49℃ , ODU fan motor starts operation again. When IDU fan motor is in medium or low fan speed and Ttube≥52℃...
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Page 33: 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 from the manufacture or distributor. Prohibit prolong the wire by Important! yourself. - Page 34 Service Manual Safety Precautions for Installing and Relocating the Unit: To ensure safety, please be mindful of the following precautions. Warnings 1. When installing or relocating the unit, be sure to keep the refrigerant circuit free from air or substances other than the specified refrigerant.
- Page 35 Service Manual Main Tools for Installation and Maintenance 1. 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. Vacuum pump 9.
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Page 36: Installation
Service Manual 8. Installation 8.1 Installation Dimension Diagram Away from wall (30cm at least for piping side) Away from obstacles Away from wall (30cm at least for piping side) Away from back side Installation and Maintenance... -
Page 37: 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 Drill wall holes (select it according to the actual situation) Connect pipes of indoor Fix outdoor unit unit and drainage pipe... -
Page 38: Installation Parts-Checking
Service Manual 8.4 Requirements for electric connection 8.2 Installation Parts-checking Safety Precaution: Name Name 1. Must follow the electric safety regulations when installing the unit. Indoor unit Sealing gum Outdoor unit Wrapping tape 2. If the supply cord is damaged, it must be replaced by the Support of outdoor manufacturer or its service agent or a similarly qualified person in Connection pipe... -
Page 39: Installation Of Indoor Unit
Service Manual 3. Pretightening the union nut with hand. Model Capacity of air switch 4. Adjust the torque force by referring to the following sheet. 24/48/55K Place the open-end wrench on the pipe joint and place the torque wrench on the union nut. Tighten the union nut with 8.5 Installation of Indoor Unit torque wrench.(As show in Fig.6) 5. -
Page 40: Installation Of Outdoor Unit
Service Manual drain hose connection pipe band power cable-cross connection hole wire Fig.11 indoor power cord 2. Remove the wire clip; connect the power connection wire Fig.14 to the wiring terminal according to the color; tighten the screw Note: and then fix the power supply wire,power connection wire with wire clip.(As show in Fig.12) 1.The power cord and control wire can't be crossed or winding. - Page 41 Service Manual 2. Install Drain Joint(Only for cooling and heating unit) (2) Fix the power connection wire and signal control wire with wire clip (only for cooling and heating unit). (1) Connect the outdoor drain joint into the hole on the chassis. (2) Connect the drain hose into the drain vent.
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Page 42: Vacuum Pumping And Leak Detection
Service Manual 8.7 Vacuum Pumping and Leak Detection Items to be checked Possible malfunction Has the unit been The unit may drop, shake or Use Vacuum Pump installed firmly? emit noise. 1. Remove the valve caps on the liquid valve and gas valve Have you done the It may cause insufficient cooling and the nut of refrigerant charging vent. -
Page 43: Maintenance
Service Manual 9. Maintenance 9.1 Error Code List Display Method of Indoor Malfunction A/C Status Possible Causes Maintenance measures Unit Name Nixie tube display The unit will stop 1. The wiring terminal between indoor operation as it reaches ambient temperature sensor and the temperature point. - Page 44 Service Manual The unit will stop 1. The wiring terminal between outdoor operation as it reaches condenser temperature sensor and the temperature point. maiboard is loosened or poorly contacted; Outdoor During cooling and drying 2. There’s short circuit due to trip-over of condenser operation, the compressor the parts on maiboard;...
- Page 45 Service Manual 1. The system is abnormal. (e.g.: blockage, etc) 2. Abnormal rotation speed of outdoor During cooling and drying motor (cooling ); High discharge operation, compressor and temperature ODU fan motor stop while Refer to Malfunction 3. Abnormal outdoor air intake (cooling); protection of IDU fan motor operates.
- Page 46 Service Manual Cooling: compressor and 1. Whether a jumper cap is installed Malfunction Refer to maintenance outdoor fan stop operation, on the mainboard of ODU? protection of while indoor fan operates Is the mainboard of ODU damaged? outdoor unit Heating: compressor, jumper cap outdoor fan and indoor fan all stop operation...
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Page 47: Procedure Of Troubleshooting
Service Manual 9.2 Procedure of Troubleshooting 1. Malfunction of Temperature Sensor (F1, F2, F3, F4, F5) 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? -
Page 48: Installation And Maintenance
Service Manual 2. High pressure protection (E1) Start Are the display board and mainboard Connect the display board with the mainboard well Malfunction is eliminated. connected tightly? Are the OVC terminal on the mainboard Connect the OVC terminal on the main board with the high Malfunction is eliminated. - Page 49 Service Manual 3. Compressor low pressure protection (E3) Start Is the terminal of low Reconnect it firmly to make pressure switch is properly connected? sure it is properly contacted Malfunction is eliminated Is the system pressure higher Charge refrigerant according than the operation pressure value of to the system requirement low pressure switch?
- Page 50 Service Manual 4. High discharge temperature protection of compressor (E4) Check the wiring and fan capacitor; replace motor mainboard Installation and Maintenance...
- Page 51 Service Manual 5. 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 52 Service Manual 6. Communication malfunction(E6) If the unit operates normally before malfunction Check the connection wire according to the wiring diagram. Check built-in wiring If the connection wire of indoor and outdoor is connected well? unit Reconnect the wire or Replace the If the wiring is replace the connection...
- Page 53 Service Manual 7. High temperature and overload protection (AP1 below means control board of outdoor unit) E8 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. Malfunction diagnosis process: Start Normal protection, please use it...
- Page 54 Service Manual Troubleshooting for F0 malfunction Heat exchangers are Clean the heat exchangers and remove Malfunction is too dirty or the air inlet/outlet eliminated. blockage of air inlet/outlet. is blocked. Compressor doesn't work Malfunction is Make compressor run normally. normally. Strange noise or leakage occurs. eliminated.
- Page 55 Service Manual Outdoor unit 1. Malfunction of Protection of Outdoor unit Jumper Cap C4 Start Appearance of the Is there jumper cap on the mainboard? jumper cap Assemble the jumper cap with the same model Is malfunction eliminated Is the jumper cap inserted correctly and tightly? Insert the jumper cap tightly...
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Page 56: Maintenance Method For Normal Malfunction
Service Manual 9.3 Maintenance Method 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 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 58: Exploded View And Parts List
Service Manual 10. Exploded View and Parts List 10.1 Indoor Unit GVA24AL-K3NNC7A/I The component picture is only for reference; please refer to the actual product. Installation and Maintenance... - Page 59 Service Manual Part Code Description GVA24AL-K3NNC7A/I Product Code CG156N00200 Baffle Plate 2611454401 Left Side Plate Sub-Assy 00013100003 Top Cover Sub-Assy 20906900008 Rear Plate Sub-Assy 01304364 Right Side Plate Sub-Assy 00013000005 Breakwater Sub-Assy 01364069P Evaporator Assy 01100100218 Protection Cover 20124112 Air Guard Sub-Assy...
- Page 60 Service Manual GVA48AL-M3NNC7A/I GVA55AL-M3NNC7A/I The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
- Page 61 Service Manual Part Code Description GVA48AL-M3NNC7A/I GVA55AL-M3NNC7A/I Product Code CG156N00300 CG156N00100 Right Side Plate Sub-Assy 0130451801 0130451801 Rear Plate Assy 01304290 01304290 Right Air Guard 01364507 01364507 Top Cover Sub-Assy 000051000034 000051000034 Left Air Guard 01364506 01364506 Left Side Plate Sub-Assy 0130451901 0130451901 Evaporator Assy...
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Page 62: Outdoor Unit
Service Manual 10.2 Outdoor Unit GVA24AL-K3NNC7A/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance... - Page 63 Service Manual Part Code Description GVA24AL-K3NNC7A/O Product Code CG156W00200 Front Grill 22415010 Front Panel 01535013P Axial Flow Fan 10335008 Drainage Joint 06123401 Drainage hole Cap 06813401 Chassis Sub-assy 017000000276P Compressor and Fittings 009001000217 Right Side Plate Assy 0130329201 Valve Support Sub-Assy 01705046P Cut off Valve Sub-Assy(1/4) 030057000029...
- Page 64 Service Manual GVA48AL-M3NNC7A/O GVA55AL-M3NNC7A/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
- Page 65 Service Manual Part Code Description GVA48AL-M3NNC7A/O GVA55AL-M3NNC7A/O Product Code CG156W00300 CG156W00100 Front Grill 01473001 01473001 Cabinet 0143543601 0143543601 Axial Flow Fan 10338731 10338731 Fan Motor 1501506705 1501506705 Motor Support Sub-Assy 01705070 01705070 Condenser Assy 011002000606 011002060087 Coping 01255013P 01255013P Rear Grill 01475006 01475006 Electric Box Assy...
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Page 66: Removal Procedure
Service Manual 11. Removal Procedure Caution: discharge the refrigerant completely before removal. 11.1 Removal Procedure of Indoor Unit Step Procedure 1.Outside view of indoor unit 2.Remove the big front panel sub-assy Open the screw cover, use screwdriver to remove the screws at both side of big front panel sub-assy air-in panel, push the big front panel upwards and then separate the connector... - Page 67 Service Manual Step Procedure 3.Remove display box sub-assy screw Take out the connection wire of display from the wire groove, remove the fixing screws of display box sub-assy, and then remove the display box sub-assy. display box sub-assy big front panel sub-assy 4.
- Page 68 Service Manual Step Procedure 6.Remove electric box and wire-passing groove sub-assy Remove the four screws fixing the electric box cover and then remove the electric box cover; disconnect the wiring terminal of each electronic components and then remove related electronic components according to your requirements;...
- Page 69 Service Manual Step Procedure 8.Remove upper cover, horizontal louver, swing board swing board upper cover Remove 2 screws at the upper part of the upper cover and two screws at the back screw horizontal louver side of the air-outlet panel. air swing After removing the air-guiding connecting connecting rod...
- Page 70 Service Manual Step Procedure guide grille 11.Remove electric heating part Remove 4 screws used for fixing the screw guide grille and then remove the guide grille. Remove 4 screws fixing the electric heating part, and then remove the electric screw heating parts.
- Page 71 Service Manual Step Procedure 13.Remove evaporator screw Remove 4 screws used for fixing the top connection board and lower connection board of evaporator and 2 screws used for fixing the side plate, pull left and right side plates outwards slightly and take screw out evaporator, baffle board and water tray.
- Page 72 Service Manual Step Procedure 15.Remove chassis Remove 9 screws, pull it downwards and then remove the chassis. chassis 16.Remove left and right side plates sub-assy Remove screws on both plates, pull it to both sides respectively and then remove left and right side plates sub-assy. right side plate sub-assy left side plate...
- Page 73 Service Manual 48/55K Step Procedure 1.Outside view of indoor unit 2.Remove air-in panel Open the screw cover, use screwdriver to remove screws used for fixing the air-in panel at both sides, and then remove the air-in panel. S c r e w cover A i r - i n panel...
- Page 74 Service Manual Step Procedure 3.Remove filter, middle air-in panel Buckle Hold the buckle position at the upper part of the filter, and pull it upwards to draw out Filter the filter. Middle air-in panel Remove 2 screws at top part of the air-in panel, pull the middle air-in panel upwards and then remove the middle air-in panel.
- Page 75 Service Manual Step Procedure 5.Remove air-out panel Screw Remove 3 screws at the top part of the air-out panel, 2 screw at the lower part and screws under the screw cover, push the air-output panel upwards slightly and then remove the air-output panel.
- Page 76 Service Manual Step Procedure 7.Remove display box Big front panel sub-assy Display box sub-assy Take out the display connection wire from the wire groove, remove 2 screw at the back of the display cover and then remove the display cover sub-assy. 8.Remove upper cover, air-outlet foam, guide louver, swing blade Upper cover...
- Page 77 Service Manual Step Procedure 10.Remove air damper Remove 10 screws used for fixing the air damper, and then the air damper can be removed. Air damper 11.Remove electric heating part Air damper Remove 4 screws on the protective grille and then remove the protective grille;...
- Page 78 Service Manual Step Procedure 12.Remove top cover Screw Top cover Remove 7 screws on the top cover, and then pull the top cover upwards to remove it. 13.Remove evaporator Screw Remove 3 screws on the evaporator, 2 screw at the middle part and 2 screws at the lower part.
- Page 79 Service Manual Step Procedure 14.Remove propeller housing, centrifugal blade and Propeller housing motor Remove 3 screws used for fixing the press plate of propeller housing and then remove the press plate of propeller housing; Rotate the guide loop to a certain position along the clockwise direction, and then remove the guide loop;...
- Page 80 Service Manual Step Procedure 16.Remove left and right side plate sub-assys Right side plate sub-assy Remove screws at both sides, pull them to both sides respectively and then left and right plate sub-assys can be removed. Left side plate sub-assy Installation and Maintenance...
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Page 81: Removal Procedure Of Outdoor Unit
Service Manual 11.2 Removal Procedure of Outdoor Unit Warning Be sure to wait for a minimum of 10 minutes after turning off all power supplies before disassembly. NOTE:Take heat pump for example. Steps Procedure 1. Remove big handle,valve cover and top cover Remove the screw connecting the big handle and right side plate, and then remove the big handle... - Page 82 Service Manual Steps Procedure 2. Remove grille and cabinet Remove the 4 screws connecting the grille and outer case, and then remove the panel grille. screw grille Remove the screws connecting the outer case with motor support, isolation plate and chassis; lift the outer case upwards;...
- Page 83 Service Manual Steps Procedure 4. Remove axial flow blade Remove the nut fixing axial flow blade and then remove the blade. axial flow blade 5.Remove motor support sub-assy and motor stopper motor support screw Remove the 2 screws connecting the motor support and chassis, and then loosen the stopper to remove the motor support.
- Page 84 Service Manual Steps Procedure 7. Remove clapboard Remove the screws fixing clapboard and then remove the clapboard. screw clapboard 8. Remove soundproof sponge Remove the soundproof sponge wrapping the compressor. soundproof sponge 9.Valve liquid valve and gas valve Unsolder the welding joint connecting the valve with capillary and condenser;...
- Page 85 Service Manual Steps Procedure 10. Remove 4-way valve assy Unsolder the welding joints connecting the 4-way valve assy with capillary sub-assy, 4-way valve assy compressor and condenser; remove the 4-way valve. Note: Before unsoldering the welding joint, wrap the 4-way valve with a wet cloth completely to avoid damage to the valve caused by high temperature.
- Page 86 Service Manual 48/55K Steps Procedure 1.Remove valve cover Remove screws used for fixing the valve cover, push the valve cover downwards slightly and then remove the valve cover. Valve cover Screw 2.Remove top cover Top cover Remove screws around the top cover, and then lift the top cover upwards to remove it.
- Page 87 Service Manual Steps Procedure 3.Remove grille Grille Remove screws used for fixing the grille and the rear side plate, the grille and the chassis, and then remove the grille. Screw Screw 4.Remove front side plate Remove screws used for fixing the front side plate, lift the front side plate upwards and then remove it.
- Page 88 Service Manual Steps Procedure 6.Remove electric box Pull out the connection wires for motor, compressor and temperature sensor, remove screws on the wiring board and screws used for fixing the electric box, and then remove the electric box. Electric box 7.Remove axial flow blade Axial flow blade Use wrench to loosen the nuts used for fixing...
- Page 89 Service Manual Steps Procedure 9.Remove 4-way valve Twist off the nuts used for fixing the 4-way valve wire, and then take out the coil. Use wet guaze to wrap the 4-way valve, unsolder the spot weld connected to the 4-way valve and then remove the 4-way valve.
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Page 90: 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 91: 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 92: 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 1.009... - Page 93 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 4.289...
- Page 94 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 4.08 580.6...
- Page 95 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.