Gree GVH32ALXH-K6DNC7A/I Service Manual
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Gree GVH32ALXH-K6DNC7A/I Service Manual

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Service Manual
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

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Summary of Contents for Gree GVH32ALXH-K6DNC7A/I

  • Page 1 Change for life Service Manual GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI...

  • Page 2: Table Of Contents

    .................... 11 6. Function and Control ............13 6.1 Function Buttons of Air Conditioner ...............13 6.2 Remote Controller Introduction ................15 6.3 GREE+ App Operation Manual ................19 6.4 Ewpe Smart App Operation Manual ..............20 6.4 Brief Description of Models and Functions ..........21 Part Ⅱ...
  • Page 3 8.5 Installation of Indoor Unit ..................33 8.6 Installation of Outdoor unit .................34 8.7 Vacuum Pumping and Leak Detection ............36 8.8 Check after Installation and Test operation ..........37 9. Maintenance ..............38 9.1 Error Code List ......................38 9.2 Procedure of Troubleshooting ................43 9.3 Troubleshooting for Normal Malfunction ............55...

  • Page 4: Part Ⅰ : Technical Information

    1. Summary Outdoor Unit: Indoor Unit: GVH32ALXH-K6DNC7A/I GWH32QFXH-K6DNB2A/O Remote Controller: YAP1F11 Technical Information...

  • Page 5: Specifications

    Air Flow Volume 1850/1600/1450/1300 Dehumidifying Volume 5.00 3.66 3.40 AEER 3.73 ACOP 3.73 Application Area 55-85 Model GVH32ALXH-K6DNC7A/I Product Code CH156N05700 Fan Type Centrifugal Fan Diameter Length(D×L) Ф379×180.5 Cooling Speed r/min 600/560/530/500 Heating Speed r/min 600/560/530/500 Fan Motor Power Output...
  • Page 6 Outdoor Unit Model GWH32QFXH-K6DNB2A/O Outdoor Unit Product Code CB432W27300 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO.,LTD Compressor Model QXFS-D280zX070 Compressor Oil Compressor Type Rotary Compressor LRA. 40.00 Compressor RLA 4.90 Compressor Power Input 2294 Compressor Overload Protector Throttling Method Electron expansion valve Set Temperature Range ºC 16~30...

  • Page 7: Capacity Variation Ratio According To Temperature

    2.2 Capacity Variation Ratio According to Temperature Cooling Heating Condition Indoor:DB27°C WB19°C Conditions Indoor air flow: Super High Indoor:DB20°C Pipe length:5m Indoor air flow:Super High Pipe length:5m -10 -5 40 45 50 2.3 Cooling and Heating Data Sheet in Rated Frequency Cooling: Pressure of gas pipe connecting Inlet and outlet pipe temperature of...

  • Page 8: Outline Dimension Diagram

    3. Outline Dimension Diagram 3.1 Indoor Unit Model 1882 Technical Information...

  • Page 9: Outdoor Unit

    3.2 Outdoor Unit 1000 Unit:mm Technical Information...

  • Page 10: Refrigerant System Diagram

    4. Refrigerant System Diagram Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Suction Accumlator exchanger Compr esso (evaporator) Heat exchanger Liquid pipe (condense r) side Valve Electric Strainer Strainer expand valve COOLING HEATING Connection pipe specification: Liquid pipe:1/4"...

  • Page 11: Electrical Part

    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 COMP. OPTIONAL Please don't touch any terminal when OVERLOAD COMP the machine is running ,stopping or has PROTECTOR OUTTUBE EXHAUST OUTROOM been powered off for less than 30 TEMP. TEMP. TEMP. minutes to prevent the risk of electric SENSOR SENSOR SENSOR shock! WH WH...

  • Page 13: Pcb Printed Diagram

    5.2 PCB Printed Diagram Indoor Unit Name Name Interface of live wire Interface of earthing wire Connection needle stand of display Fuse board Interface of communication wire for Left & right swing interface outdoor unit Interface of netural wire Up & down swing interface Motor interface of indoor unit 10 Needle stand of temperature sensor Technical Information...
  • Page 14 Outdoor Unit Name Name Neutral wire Terminal of high pressure protection Grounding wire Temperature sensor Live wire 10 Overload interface of compressor Communication wire Terminal of electronic expansion valve 4-way valve 12 Terminal of DRED Electric heating belt of chassis 13 E disk(Reserved) Outdoor fan 14 Terminal of compressor wire...

  • Page 15: Function And Control

    6. Function and Control 6.1 Function Buttons of Air Conditioner Buttons Name and Function ON/OFF button MODE button FAN button FUNCTION button ON/OF F button MODE FUNC. Introduction for icons on display screen of air conditioner Ambient temperature Timer Operation or set temperature display display...
  • Page 16 set only in heating mode). When timer or auxiliary heating icon upper limit temperature. is blinking, it means this function can be set. Press "▲" or "▼" 3.Upper temperature limit can be set only after the lower button to set function. If there’s no operation change within 5s temperature limit has been set;...

  • Page 17: Remote Controller Introduction

    6.2 Remote Controller Introduction Buttons on remote controller ON/OFF button MODE button FAN button SAVE button COOL button HEAT button button button SLEEP button WiFi button X-FAN button button LIGHT button TIMER button Introduction for icons on display screen Set fan speed fan speed.
  • Page 18 energy-saving function. When energy-saving function is started up, "SE" will be shown on remote controller, and air conditioner When selecting auto mode, air conditioner will operate will adjust the set temperature automatically according to ex- automatically according to the sensed temperature. Set factory setting to reach to the best energy-saving effect.

  • Page 19: Function Introduction For Combination Buttons

    10. SLEEP button any one of indoor units enters into power limiting function, the outdoor unit will enter into the set limiting power mode of indoor Under COOL or HEAT mode, press this button to start up sleep unit; when two indoor units enter into power limiting mode, then function.

  • Page 20: Replacement Of Batteries In Remote Controller

    Note: ● The auto clean function can only work under normal ambient temperature. If the room is dusty, clean it once a month; if not, clean it once every three months. After the auto clean function is turned on, you can leave the room. When auto clean is finished,the air conditioner will enter standby status.

  • Page 21: Gree+ App Operation Manual

    GREE+ App Download Linkage Scan the QR code or search "GREE+" in the application market to download and install it. When "GREE+" App is installed, register the account and add the device to achieve long-distance control and LAN control of Gree smart home appliances.

  • Page 22: Ewpe Smart App Operation Manual

    6.4 Ewpe Smart App Operation Manual Control Flow Chart Internet Cloud intelligent Home Wi-Fi Cellular/ 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 Download and installation...

  • Page 23: Brief Description Of Models And Functions

    6.4 Brief Description of Models and Functions ●Indoor Unit Memory content: mode, up&down swing, light, set temperature, set fan speed, general timer (clock timer Can't be memorized). 1.Basic function of system After power recovery, the unit will be turned on automatically (1)Cooling mode according to memory content.
  • Page 24 IDU does not control the compensation temperature, then (15) 8 C heating function Under heating mode, you can set 8 Cheating function by remote Tcompensation will default to 3 C by the ODU. controller. The system will operate at 8 C set temperature.

  • Page 25: Part Ⅱ : Installation And Maintenance

    7. Notes for Installation and Maintenance Safety Precautions: Important! 12. Make sure all wires and pipes are connected properly and the valves are opened before energizing. 13. Check if there is electric leakage on the unit body. If yes, Please read the safety precautions carefully before please eliminate the electric leakage.

  • Page 26: Safety Precautions For Installing And Relocating The Unit

    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 If compressor starts running when stop valve is open and connection pipe is not yet connected, air will be sucked in and keep the refrigerant circuit free from air or substances cause pressure rise or compressor rupture, resulting in injury.

  • Page 27: Safety Operation Of Flammable Refrigerant

    running fire (such as fire source,working coal gas ware, operating Safety Precautions for Refrigerant heater). ●It is not allowed to drill hole or burn the connection pipe. ●To realize the function of the air conditioner unit, a special ●The air conditioner must be installed in a room that is larger than refrigerant circulates in the system.

  • Page 28: Safety Instructions For Transportation And Storage

    drained refrigerant will not cause any danger. In doubt, one person ●No ignition sources should guard the outlet. Take special care that drained refrigerant will not float back into the building. No person carrying out work in relation to a refrigerating system •...

  • Page 29: Charging Procedures

    to have an electrical supply to equipment during servicing, then a remote from the leak. Removal of refrigerant shall be according to "Removal and evacuation". permanently operating form of leak detection shall be located at the most critical point to warn of a potentially hazardous situation. 2.
  • Page 30 • mechanical handling equipment is available, if required, for the compressor to the suppliers. Only electric heating to the handling refrigerant cylinders; compressor body shall be employed to accelerate this process. • all personal protective equipment is available and being used When oil is drained from a system, it shall be carried out safely.

  • Page 31: Main Tools For Installation And Maintenance

    Main Tools for Installation and Maintenance Level meter Measuring tape Screw driver Impact drill Drill head Electric drill Electroprobe Universal meter Inner hexagon Electronic Torque wrench Open-end wrench spanner leakage detector Vacuum pump Pressure meter Pipe pliers Pipe pliers Pipe cutter Pipe expander Pipe bender Soldering appliance...

  • Page 32: Installation

    8. Installation 8.1 Installation Dimension Diagram Space to the obstuction Space to the wall(30cm at least for piping side) Space to the wall(30cm at least for piping side) Space to the back side Drainage pipe Installation and Maintenance...

  • Page 33: Installation Procedures

    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 34: Installation Parts-Checking

    8.2 Installation Parts-checking 3. Outdoor Unit: (1) Select a location where the noise and outflow air emitted by Name the outdoor unit will not affect neighborhood. (2) The location should be well ventilated and dry, in which the Indoor unit outdoor unit won't be exposed directly to sunlight or strong wind.

  • Page 35: Installation Of Indoor Unit

    (5) An all-pole disconnection switch having a contact separation of at least 3mm in all poles should be connected in fixed wiring. (6) Including an air switch with suitable capacity, please note the following table. Air switch should be included magnet buckle screws and heating buckle function, it can protect the circuit-short and overload.

  • Page 36: Installation Of Outdoor Unit

    Note: connection pipe drain pipe (1) Add insulating pipe in the indoor drain hose in order to insulation wrapping tape sleeve connection prevent condensation. pipe (2) The plastic expansion particles are not provided. drain pipe insulation wrapping tape (As show in Fig.8) sleeve connection wire...
  • Page 37 Refer to the following table for wrench moment of force: expansion screws are needed; for the unit with cooling capacity of Tightening torque(N . m) 6000W~8000W, 8 expansion screws are needed; for the unit with Piping size cooling capacity of 10000W~16000W, 10 expansion screws are 1/4"...

  • Page 38: Vacuum Pumping And Leak Detection

    Liquid valve Piezometer Gas valve the drain hose can't raise Valve cap Refrigerant charging upwards. Wall vent Nut of refrigerant Charging vent U-shaped curve Vacuum pump Drain hose Fig.20 Inner hexagon Fig.19 spanner Note: Close (1) The through-wall height of drain hose shouldn't be higher Open than the outlet pipe hole of indoor unit.(As show in Fig.20) (2) Slant the drain hose slightly downwards.

  • Page 39: Check After Installation And Test Operation

    8.8 Check after Installation and Test operation 1. Check after Installation Check according to the following requirement after finishing installation. Items to be checked Possible malfunction Has the unit been installed The unit may drop, shake or firmly? emit noise. Have you done the It may cause insufficient refrigerant leakage test?

  • Page 40: Maintenance

    9. Maintenance 9.1 Error Code List Error Malfunction name AC status Possible causes code 1. Jumper cap is not installed in control panel; 2. Poor contact of jumper cap; Malfunction of jumper cap The complete unit stops operation 3. Jumper cap is damaged; 4.
  • Page 41 Error Malfunction name AC status Possible causes code 1. Temperature sensor is not well connected or damaged; Liquid valve temperature 2. The wire of temperature sensor is damaged, causing short sensor is ON / short- circuit to copper pipe or outer casing; circuited 3.
  • Page 42 Error Malfunction name AC status Possible causes code Cool/Dry: compressor and outdoor 1. Temperature sensor is not connected well or damaged; Outdoor condenser fan stop operation, while indoor fan 2. Temperature sensor wire of outdoor unit is damaged; short temperature sensor is operates;...
  • Page 43 Error Malfunction name AC status Possible causes code 1. Outdoor ambient temperature exceeds the operation range Cool: compressor and outdoor of unit (eg: less than-20 C or more than 60 C for cooling; more fan stops operation, while indoor than 30 C for heating);...
  • Page 44 Error Malfunction name AC status Possible causes code Cool/Dry: compressor stops DC bus voltage drop operation, while indoor fan The power voltage is unstable. malfunction operates; Heat: all loads stops operation. Cool: compressor and outdoor fan stops operation, while indoor 1.

  • Page 45: Procedure Of Troubleshooting

    9.2 Procedure of Troubleshooting 1. Troubleshooting for jumper cap Main check points: (1) jumper cap (2) control board of indoor unit Display shows “C5” Check whether the main Insert the equipped board of controller is inserted with jumper cap jumper cap. Eliminate malfunction Check whether the...

  • Page 46: Communication Malfunction

    2. Communication malfunction Main check points: (1) Connection wire between indoor unit and outdoor unit (2) Wiring inside the unit (3) Communication circuit of control board of indoor unit (4) Communication circuit of control board of outdoor unit Start Check whether the unit has operated normally before the malfunction occurs.

  • Page 47: Ipm Protection

    3. IPM protection , over-phase current of compressor Main check points: (1) compressor COMP terminal (2) power supply voltage (3) compressor (4) charging amount of refrigerant (5) air inlet and air outlet of indoor/outdoor unit NOTE:The control board as below means the control board of outdoor unit. Put through the power and turn on the unit...
  • Page 48 4. Overload protection of compressor , high discharge temperature, protection of compressor Main check points: (1) electronic expansion valve (2) expansion valve terminal (3) charging amount of refrigerant (4) overload protector NOTE:The control board as below means the control board of outdoor unit. After the unit has been cut off the power for more than 20mins...
  • Page 49 5.Troubleshooting for temperature sensor , , , , Main check points: (1) connection terminal (2) temperature sensor (3) main board Start Check whether the connection terminal between the temperature sensor and the control board is loose or not connected well. Insert the temperature sensor well Eliminate...
  • Page 50 6.High temperature prevention protection ; high power ; system is abnormal Main check points: (1) outdoor temperature (2) fan (3)air inlet and air outlet of indoor/outdoor unit NOTE:The control board as below means the control board of outdoor unit. Overload protection, high temperature prevention protection Normal protection.
  • Page 51 7.Desynchronization diagnosis for compressor Main check point: (1) system pressure (2) power supply voltage NOTE:The control board as below means the control board of outdoor unit. Desynchronization occurs Desynchronization occurs during operation after turning on the unit Check whether the fan Replace the fan Does the outdoor fan operate terminal OFAN is...
  • Page 52 8.Malfunction diagnosis for failure startup Main check points: (1) compressor wire (2) compressor (3) charging amount of refrigerant NOTE:The control board as below means the control board of outdoor unit. Put through the power and turn on the unit The time for stop operation is not enough and the system's high pressure and low pressure is Check whether the compressor unbalanced.
  • Page 53 9. Charging malfunction of capacitor Main check points: (1) wiring board XT (2) reactor NOTE:The control board as below means the control board of outdoor unit. Put through the power to turn on the unit and then wait for 1min Measure the voltage at both ends of electrolytic capacitor with DC voltmeter.
  • Page 54 10. Troubleshooting-motor(indoor fan) doesn't operate Main check points: (1) connection terminal (2) motor (3) control board AP1 of indoor unit (4) blade 10.1 DC motor Display shows "H6" Pull the blade with hand under de-energization status Check whether the Adjust the motor and the blade blade operates smoothly to make the motor operate smoothly.
  • Page 55 10.2 PG motor Display shows "H6" Pull the blade with hand under de- energization status Adjust the motor and Check whether the blade to make the the blade operates blade operate smoothly smoothly. Eliminate malfunction Check whether Insert the feedback the feedback terminal of terminal again indoor fan's motor...
  • Page 56 11. AC overcurrent protection Start The normal fluctuation is about 10% of rated Eliminate malfunction The power voltage is unstable. voltage on the nameplate. The power voltage is too low and the Adjust the power voltage to make it normal. Eliminate malfunction load is too high.

  • Page 57: Troubleshooting For Normal Malfunction

    9.3 Troubleshooting for Normal Malfunction 1. Air Conditioner can't 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 connection After energization, operation indicator isn't bright wait for power recovery.
  • Page 58 4. ODU Fan Motor can't Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Wrong wire connection, or poor Check the wiring status according to circuit Connect wires according to wiring diagram to make connection diagram sure all wiring terminals are connected firmly Measure the capacity of fan capacitor with an Capacity of the ODU fan motor is universal meter and find that the capacity is out of...

  • Page 59: Exploded View And Parts List

    10. Exploded View and Parts List 10.1 Indoor Unit 36 35 The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 60 Description Description Right Side Plate Sub-Assy Terminal Board Rear Plate Sub-Assy Motor Cover Right Air Guard Stepping Motor Top Cover Sub-Assy Air Guide Bushing Left Air Guard Guide Blade Lever Left Side Plate Sub-Assy Stepping Motor Evaporator Assy Crank 1 Air Guard Assy Air Louver 1 Chassis...

  • Page 61: Outdoor Unit

    10.2 Outdoor Unit The component is only for rererence;please refer to the actual product Installation and Maintenance...
  • Page 62 Description Front Grill Cabinet Axial Flow Fan Brushless DC Motor Chassis Sub-assy Drainage Plug Drainage Connecter Cushioned Nut Clap Board Assy Compressor and fittings 4-way Valve Assy Right Side Plate Assy Valve Support Sub Cut-off Valve(gas) Back Cover Nut Cut-off Valve(liquid) Back Cover Nut Valve Cover Union Nut...

  • Page 63: Removal Procedure

    11. Removal Procedure 11.1 Removal Procedure of Indoor Unit Caution: discharge the refrigerant completely before removal. Step Procedure 1. Before disassemble 2. Remove Air Intake Panel Assy Screw cover (1) Open the screw cover, use the screwdriver to remove 2 screws at both sides of air intake panel and then pull the air intake panel to remove it;...
  • Page 64 Step Procedure 3. Remove Electric Box Cover and Pass Wire Slot Cover Electric Box Cover Screws Remove 3 screws used for fixing the electric box cover, Screws remove the electric box cover. Pass Wire Slot Cover Remove 3 screws used for fixing the pass wire slot cover, remove the pass wire slot cover.
  • Page 65 Step Procedure 5. Remove Air Outlet Panel Assy Air Outlet Panel Assy Screws Remove 3 screws at the top part of the air outlet panel, 2 screw at the lower part and screws under the screw cover, push the air outlet panel upwards slightly and then remove the air outlet panel.
  • Page 66 Step Procedure 8. Remove evaporator Evaporator Remove 3 screws on the evaporator, 2 screw at the middle part and 2 screws at the lower part. Pull left and right side plates outwards slightly and then take out the evaporator, baffle board and water tray. When the evaporator is removed, the left and the right air damper and the baffle board of the evaporator can be removed.
  • Page 67 Step Procedure 11. Remove chassis A f t e r 9 s c r e w s a r e r e m o v e d , p u l l t h e c h a s s i s downwards to remove it.

  • Page 68: Removal Procedure Of Outdoor Unit

    11.2 Removal Procedure of Outdoor Unit Caution: discharge the refrigerant completely before removal. Step Procedure 1. Before disassembly 2. Remove top cover top cover Remove the screws fixing top cover and then remove the top cover. 3. Remove big handle and valve cover big handle Remove the screws fixing big handle, valve cover and then remove them.
  • Page 69 Step Procedure 4. Remove front panel assy Remove connection screws connecting the front panel assy with the chassis and the motor support, and then remove the front panel assy. Front Panel Assy 5. Remove rear grill Remove the screws connecing the left side plate and right side plate and then remove rear grill.
  • Page 70 Step Procedure 7. Remove valve suppprt Remove the valve support bolck, remove the screws fixing valve support, remove the screws fixing the liquid valve supprt valve and gas valve then remove the valve support. Valve Support Block 8. Remove gas valve and liquid valve Unsolder the welding joint connecting the gas valve and the liquid valve, remove them.
  • Page 71 Step Procedure Electric Box Assy 10. Remove electric box assy Unplug the terminals, unscrew 1 screw that secures the electrical box assy, release the two snaps on the electrical box assy (in the clapboard and condenser angle), pull outwards, and remove the electrical box assy.
  • Page 72 Step Procedure 13. Remove motor Remove the screws fixing the motor and then remove the motor. motor 14. Remove motor support Remove the screws fixing the motor support and lift the motor support to remove it. motor support 15. Remove clapboard assy clapboard assy Remove the screws fixing the clapboard assy and then remove the clapboard assy.
  • Page 73 Step Procedure 16. Remove compressor Remove the 3 foot nuts on the compressor and then remove the compressor. compressor Installation and Maintenance...

  • Page 74: Appendix

    Appendix Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit display Fahrenheit Celsius Fahrenheit display Fahrenheit Celsius Fahrenheit display Fahrenheit Celsius temperature（ temperature（ temperature（ F） （ F） （ C） F）...

  • Page 75: Appendix 3: Pipe Expanding Method

    Appendix 3: Pipe Expanding Method Pipe Note: Improper pipe expanding is the main cause of refrigerant leakage.Please expand Pipe cutter the pipe according to the following steps: A:Cut the pip Leaning Uneven Burr ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ●...

  • Page 76: Appendix 4: List Of Resistance For Temperature Sensor

    Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K) Temp( Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 138.10 49.02 18.75 7.97 128.60 44.31 17.14 7.35 115.00 40.09 15.68 6.79 102.90 36.32 14.36 6.28...
  • Page 77 JF00305529 GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI Add: West Jinji Rd, Qianshan, Zhuhai,Guangdong, China, 519070 Tel: (+86-756) 8522219 Fax: (+86-756) 8669426 E-mail: global@cn.gree.com For product improvement, specifications and appearance in this manual are subject to change without prior notice.

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