Gree U-MATCH Series Service Manual
  1. Manuals
  2. Brands
  3. Gree Manuals
  4. Air Conditioner
  5. U-match Series
  6. Service manual

Gree U-MATCH Series Service Manual

Dc inverter air conditioners
Hide thumbs Also See for U-MATCH Series:
Table of Contents

Advertisement

Quick Links

U-MATCH SERIES DC INVERTER AIR
CONDITIONERS SERVICE MANUAL
T1/R410A/50&60Hz
(GC201602 -
)
І

Advertisement

Table of Contents
loading

Related Manuals for Gree U-MATCH Series

Summary of Contents for Gree U-MATCH Series

  • Page 1 U-MATCH SERIES DC INVERTER AIR CONDITIONERS SERVICE MANUAL T1/R410A/50&60Hz (GC201602 - І...

  • Page 2: Table Of Contents

    CONTENTS PRODUCT ................................. 2 1 MODELS LIST ............................. 2 1.1 Outdoor Unit ............................2 1.2 Indoor Unit ............................3 2 NOMENCLATURE ............................4 2.1 Outdoor Unit ............................4 2.2 Intdoor Unit ............................4 3 PRODUCT DATA ............................5 3.1 Product Data of Indoor Unit ......................... 5 3.2 Operation Range ..........................
  • Page 3 MAINTENANCE .............................. 81 1 TROUBLE TABLE ............................. 81 2 FLOW CHART OF TROUBLESHOOTING ....................84 2.1 Troubleshooting Flow Chart of Main Control Malfunction ..............84 2.2 Troubleshooting Flow Chart of Drive Malfunction ................91 2.3 Interface ............................. 95 2.4 IPM, PFC Testing Method ........................99 3 WIRING DIAGRAM ..........................
  • Page 4 U-Match Series DC Inverter Service Manual PRODUCT...

  • Page 5: Product

    U-Match Series DC Inverter Service Manual PRODUCT 1 MODELS LIST 1.1 Outdoor Unit Power Supply Model Name Product Code Appearance (V, Ph, Hz) GUHD24NS3GO CF090W0800 220-240V~ 50/60Hz GUHD36NS3GO CF090W0860 220-240V~ 50/60Hz GUHD42NS3GO CF090W0870 220-240V~ 50/60Hz GUHD48NS3GO CF090W0880 220-240V~ 50/60Hz GUHD60NS3GO...

  • Page 6: Indoor Unit

    U-Match Series DC Inverter Service Manual 1.2 Indoor Unit Nominal Capacity Power Type Model Name Product Code Cooling/Heating Supply Appearance (kW) (V, Ph, Hz) GFH24S3GI CF060N0560 7.0/8.0 220-240V~ 50/60Hz GFH24S3G1I CF060N0561 7.0/8.0 GFH36S3GI CF060N0650 10.0/12.0 220-240V~ 50/60Hz GFH36S3G1I CF060N0660 10.0/12.0...

  • Page 7: Nomenclature

    U-Match Series DC Inverter Service Manual 2 NOMENCLATURE 2.1 Outdoor Unit Description Options Gree Electric Appliances Inc Capital Letter :G Unit Type U=U-Match Outdoor Unit C=Cool Only Product Type H=Heat Pump without Aux Electric Heaters N=Constant Frequency Compressor Power Supply...

  • Page 8: Product Data

    U-Match Series DC Inverter Service Manual 3 PRODUCT DATA 3.1 Product Data of Indoor Unit 3.1.1 Duct Type Indoor unit GFH24S3GI GFH24S3G1I Model Outdoor unit GUHD24NS3GO GUHD24NS3GO 7.00 7.00 Cooling Btu/h 23884 23884 Nominal Capacity 8.00 8.00 Heating Btu/h 27296...
  • Page 9 U-Match Series DC Inverter Service Manual Indoor unit GFH36S3GI GFH36S3G1I GFH42S3GI Model GUHD42NS3GO Outdoor unit GUHD36NS3GO GUHD36NS3GO 10.00 10.00 12.00 Cooling Btu/h 34120 34120 40944 Nominal Capacity 12.00 12.00 13.80 Heating Btu/h 40944 40944 47086 Cooling 3.10 3.10 3.70 Power Input Heating 3.30...
  • Page 10 U-Match Series DC Inverter Service Manual Indoor unit GFH42S3G1I GFH48S3GI GFH48S3G1I Model Outdoor unit GUHD42NS3GO GUHD48NS3GO GUHD48NS3GO 12.0 13.7 13.7 Cooling Btu/h 40944 46744 47768 Nominal Capacity 13.8 16.0 16.0 Heating Btu/h 47086 54592 54592 Cooling 3.70 4.25 4.25 Power Input Heating 4.00...
  • Page 11 U-Match Series DC Inverter Service Manual Indoor unit GFH60S3GI GFH60S3G1I Model Outdoor unit GUHD60NS3GO GUHD60NS3GO 16.0 16.0 Cooling Btu/h 54592 54592 Nominal Capacity 18.0 18.0 Heating Btu/h 61416 61416 Cooling 5.00 5.00 Power Input Heating 5.00 5.00 EER/COP 3.20/3.60 3.20/3.60...
  • Page 12 U-Match Series DC Inverter Service Manual 3.1.2 Cassette Type Indoor unit GKH24S3GI GKH36S3GI Model Outdoor unit GUHD24NS3GO GUHD36NS3GO 7.20 10.00 Cooling Btu/h 24566 34120 Nominal Capacity 8.20 12.00 Heating Btu/h 27978 40944 Cooling 2.15 3.00 Power Input Heating 2.45 3.50 EER/COP 3.34/3.34...
  • Page 13 U-Match Series DC Inverter Service Manual Indoor unit GKH42S3GI GKH48S3GI Model Outdoor unit GUHD42NS3GO GUHD48NS3GO 11.50 14.00 Cooling Btu/h 39238 47768 Nominal Capacity 13.80 16.00 Heating Btu/h 47086 54592 Cooling 3.50 4.30 Power Input Heating 4.20 4.50 EER/COP 3.28/3.28 3.25/3.55...

  • Page 14: Operation Range

    U-Match Series DC Inverter Service Manual 3.2 Operation Range Range of Outdoor Temperature ℃ Mode Cooling -15-48 Heating -10-24 3.3 Electrical Data 3.3.1 Outdoor unit Table 1-4-1 Electrical Data of Outdoor Unit Min. Compressor Fan Motor Fuse/Breaker Power Capacity Supply...

  • Page 15: Piping Diagram

    U-Match Series DC Inverter Service Manual ②. The specifications of the breaker and power cable listed in the table above are determined based on the maximum power (maximum amps) of the unit. ③. The specifications of the power cable listed in the table above are applied to the conduit-guarded multi-wire copper cable (like, YJV copper cable, consisting of PE insulated wires and a PVC cable jacket) used at 40°С...
  • Page 16 U-Match Series DC Inverter Service Manual CONTROL...

  • Page 17: Control

    U-Match Series DC Inverter Service Manual CONTROL 1 OPERATION FLOWCHART 1.1 Cooling/Dry Operation Power Open unit running at cool or dry mode Indoor fan run Satisfying open Comp. condition Comp. and outdoor fan run Temp of indoor ≤Set temp Comp. and outdoor fan stop Comp.

  • Page 18: Heating Operation

    U-Match Series DC Inverter Service Manual 1.2 Heating Operation Power Open unit running at heat mode Satisfying open comp. condition Comp. and outdoor fan run Avoid cool wind (only when comp. start) Temp of indoor ≥Set temp Comp. and outdoor fan stop Comp.

  • Page 19: Wireless Remote Controller

    U-Match Series DC Inverter Service Manual 2 WIRELESS REMOTE CONTROLLER 2.1 Operation and Display View Table 2-2-1 Operation instruction of wireless remote controller Name Function Description Signal  Signal transmitter transmitter  Press this button and the unit will be turned on; press it once more, and the unit will be turned ON/OFF off.
  • Page 20 U-Match Series DC Inverter Service Manual  By pressing this button, Auto, Low, Middle, High speed can be circularly selected. After power on, Auto fan speed is default.  Low speed FAN button Middle speed High speed Note: Under the DRY mode, the fan will be kept running at the low speed and the fan speed isn't adjustable.

  • Page 21: Wired Controller

    U-Match Series DC Inverter Service Manual 3 WIRED CONTROLLER 3.1 Display View Figure 2-3-1 Appearance of wired controller Figure 2-3-2 LCD display of wired controller...
  • Page 22 U-Match Series DC Inverter Service Manual Table 2-3-1 Instruction to LCD Display Icons Introduction Left and right swing function Up and down swing function Air exchange function Sleep function Auto mode COOL mode DRY mode FAN mode HEAT mode Health function...

  • Page 23: Operation View

    U-Match Series DC Inverter Service Manual 3.2 Operation View 3.2.1 Silk Screen of Buttons Figure 2-3-3 Silk screen of buttons 3.3.2 Instruction to Function of Buttons Table 2-3-2 Instruction to buttons of wired controller Description Functions （1）Function selection and canceling;...
  • Page 24 U-Match Series DC Inverter Service Manual Notes: The following functions can be set through Function and Timer buttons: setting of ambient temperature sensor, selecting three speeds in high speed and three speeds in low speed of indoor fan motor, display setting of freeze protection error code, setting of cold air prevention and hot air hot...

  • Page 25: Operation Instruction Of Special Functions

    U-Match Series DC Inverter Service Manual the enquiry and setting interface of master/slave wired controller. In this case, LCD displays wired controller‟s address (01 for master wired controller and 02 for slave wired controller). Press ▲ or ▼ button to adjust address of master/slave wired controller and then press Enter/Cancel button to confirm.
  • Page 26 U-Match Series DC Inverter Service Manual Setting of filter clean reminder function is shown as Figure 2-4-1 below: Figure 2-4-1 Setting of filter clean reminder function When setting the filter clean reminder function, timer zone will display 2 digits, of which the former indicates the pollution degree of operating place and the latter indicates the accumulated operating time of indoor unit.

  • Page 27: Low Temperature Drying Function

    U-Match Series DC Inverter Service Manual indicates the accumulated operating time is 1400hr. Each time the latter digit increases 1, the accumulated operating time increases 400hr. When it reaches 9, it means the accumulated operating time is 5000hr. (4) Heavy pollution: the former digit in timer zone shows 3 while the latter one shows 0, which indicates the accumulated operating time is 100hr.

  • Page 28: Memory Function

    U-Match Series DC Inverter Service Manual . Pressing ▲ and ▼ buttons at the same time for 5s to turn off turn on Lock function. LCD will display this function. When Lock function is turned on, any other buttons won‟t respond when pressing. The function can be memorized after power failure and then power recovery.

  • Page 29: Enquiry Of Historical Malfunction

    U-Match Series DC Inverter Service Manual Note: ①. If the unit is not connected to outdoor ambient temperature sensor, display of outdoor ambient temperature will be shielding after energizing for 12hr. ②. If there is malfunction of outdoor ambient temperature sensor, display of outdoor ambient temperature will be shielding after energizing for 12hr.
  • Page 30 U-Match Series DC Inverter Service Manual Under debugging state, press Mode button to adjust to “04” in temperature displaying zone. Timer zone displays setting state and press ▲ or ▼ button to adjust. There are 2 selections: (1) With refrigerant lacking protection function (LCD displays 01) (2) Without refrigerant lacking protection function (LCD displays 02) 4.9.5 Selecting blowing residual heating of indoor unit...
  • Page 31 U-Match Series DC Inverter Service Manual (1) Without human sensitive function (LCD displays 00) (2) With human sensitive function (LCD displays 00) 4.9.10 Selecting long-distance monitoring or centralized controller Under debugging state, press Mode button to adjust to “10” in temperature displaying zone. Timer zone displays setting state and press ▲...

  • Page 32: Installation Of Wired Controller

    U-Match Series DC Inverter Service Manual (1) Compensate 0℃ (LCD displays 00) (2) Compensate 1℃ (LCD displays 01) (3) Compensate 2℃ (LCD displays 02) (4) Compensate 3℃ (LCD displays 03) (5) Compensate 4℃ (LCD displays 04) (6) Compensate 5℃ (LCD displays 05) (7) Compensate 6℃...

  • Page 33: Installation Position And Requirement

    U-Match Series DC Inverter Service Manual Figure 2-5-1 5.2 Installation Position and Requirement (1) Prohibit installing the wired controller at the misty place or the place with direct sunlight. (2) Prohibit installing the wired controller at the place near high temperature objects or water-splashing places.

  • Page 34: Removal Of Wired Controller

    U-Match Series DC Inverter Service Manual Figure 2-5-2 Installation of wired controller Brief instructions of installation procedure: 1) Pull out the 2-core signal wire in the installation hole of the wall and then let this wire go through the hole at the back of wired controller‟s base plate.
  • Page 35 U-Match Series DC Inverter Service Manual Compressor high discharge temperature protection Communication malfunction Malfunction of indoor fan motor Full water protection Malfunction of indoor ambient temperature sensor Malfunction of evaporator temperature sensor Malfunction of condenser temperature sensor Malfunction of outdoor ambient temperature sensor...

  • Page 36: Centralized Controller

    U-Match Series DC Inverter Service Manual When there is a malfunction, please turn off the unit and ask the professional for maintenance. For example, E1 means high pressure protection during operation. Figure 2-6-1 7 CENTRALIZED CONTROLLER 7.1 Smart Zone Controller 7.1.1 Function...
  • Page 37 U-Match Series DC Inverter Service Manual 7.1.3 Functions of Press Buttons Table 2-7-1 Functions of Press Buttons Name Function Description Mode It is used for the switchover among different modes. It is used to set the fan speed, high, medium, low or auto.
  • Page 38 U-Match Series DC Inverter Service Manual 7.1.4.2 Introduction to Symbols on the LCD Figure 2-7-3 Table 2-7-2 Introduction to the Symbols on the LCD Name Description Fan speed It displays the fan speed of the indoor unit, high, medium, low an d auto.

  • Page 39: Additional Special Functions

    U-Match Series DC Inverter Service Manual 7.1.4.4 Dimensions Figure 2-7-5 7.2 Additional Special Functions 7.2.1 Door control function Door control function is available for this series. In order to achieve this function, please select the door control accessories from Gree.
  • Page 40 U-Match Series DC Inverter Service Manual Table 2-7-3 Door control wiring port Terminal name Terminal instruction CN1 wiring terminal and door control interface of indoor mainboard X1(AC-L, AC-N) wiring terminal, connected to door control input X1(AC-L, AC-N) signal, rated voltage 220V.
  • Page 41 U-Match Series DC Inverter Service Manual Figure 2-7-7 Note: You can purchase the accessory from Gree. The information is as below: Name Product code Remark Controller for door control MC207022 One controller for one unit function (MK03) 7.2.2 Human sensitive function You can purchase the module of human sensitive function for this series.
  • Page 42 U-Match Series DC Inverter Service Manual displayed on the wired controller; if the unit is without wired controller, there will be no display. The unit will control the ON/OFF of unit according to the detected information. (3) Setting method: Under off state of the unit, press Function and Timer buttons at the same time for 5s to go to the debugging menu.
  • Page 43 7.2.3 MODBUS interface The indoor unit of this series has MODBUS interface. If the user needs to connect the unit to the management system of the building, please enquire Gree for the MODBUS protocol. Figure 2-7-9 (1) Interface instruction: 1) The printing is COM-BMS1 and the interface type is B4B-XH-K3;...
  • Page 44 U-Match Series DC Inverter Service Manual address of wired controller is set to match the address of long-distance control. The unit will memorize this setting status. The setting value will be memorized after power failure. The detailed setting is as...
  • Page 45 U-Match Series DC Inverter Service Manual Figure 2-7-11 Note: ①. In order to realize the MODBUS interface function, the address mode of the unit must be set into long-distance control address mode; you can not set it into centralized control address mode, otherwise, this function can not be realized;...
  • Page 46 U-Match Series DC Inverter Service Manual In order to achieve this function, set the address mode and address through wired controller. Please refer to Point 3 for the setting method. The address mode is defaulted to be connecting to centralized controller mode and the defaulted address is 1;...
  • Page 47 U-Match Series DC Inverter Service Manual 2) Address setting of each unit: when the address mode is set to be centralized controller address mode. The address setting value range is 01~16. The setting method is: Under off state of the unit, press Function and Mode buttons at the same time for 5s to enter setting interface of wired controller address.
  • Page 48 7.2.5 Light board control: Light board interface is reserved on the mainboard of duct type unit. You can purchase Gree light board to realize control of the unit. When wired control is also connected, you can realize control of the unit through light board and wired controller.
  • Page 49 U-Match Series DC Inverter Service Manual Figure 2-7-15 Malfunction output (3) Setting method: Do not need to set this function Notes: ①. The interface voltage should be 220V AC intense current; ②. If malfunction light is connected, please make sure its power is not too big (it should be within...
  • Page 50 U-Match Series DC Inverter Service Manual Figure 2-7-15 Table 2-7-4 Corresponding interfaces of mainboard Interface Evaporator temperature sensor Swing motor Human sensitive Door control Full water detection Interface of light board Communication port of centralized controller MOUDBUS interface Interface of annunciator live wire...
  • Page 51 U-Match Series DC Inverter Service Manual 7.2.7 Reserved fresh air valve interface for duct type unit For the reserved connection way of air valve performer, connect it to F, C, O of wiring board according to the wiring diagram. Connect the public port of air valve to F, connect CLOSE to C and connect OPEN to O.
  • Page 52 U-Match Series DC Inverter Service Manual 7.2.9 Chassis electric heating belt of outdoor unit is optional When outdoor ambient temperature is very low, electric heating belt can be equipped on the chassis to prevent freezing of the chassis. Figure 2-7-18...
  • Page 53 U-Match Series DC Inverter Service Manual INSTALLATION...

  • Page 54: Installation

    U-Match Series DC Inverter Service Manual INSTALLATION 1 INDOOR UNIT INSTALLATION 1.1 Installation of Duct Type 1.1.1 Before Installation After receiving the machine, please check for any transport damage. If finding any surface or internal damage, please immediately report to the transport company or equipment company in writing.
  • Page 55 U-Match Series DC Inverter Service Manual Air-conditioning Unit Ceiling-mount Screw Hanger Figure 3-1-1 Figure 3-1-2 Install the hanger onto the indoor unit as Figure 3-1-2 shows. Install the indoor unit at the ceiling as Figure Figure 3-1-3 shows. Screw Hanger...
  • Page 56 U-Match Series DC Inverter Service Manual 1.1.4 Dimension Data For the units: GFH24S3GI、GFH24S3G1I Gas Pipe Liquid Pipe Air Intake Drainage Pipe Electric Box For the units: GFH36S3GI, GFH36S3G1I, GFH42S3GI, GFH42S3G1I, GFH48S3GI, GFH48S3G1I For the units: GFH60S3GI, GFH60S3G1I Figure 3-1-5...
  • Page 57 U-Match Series DC Inverter Service Manual Table 3-1-1 Item Model GFH24S3GI 1010 1115 1225 GFH24S3G1I GFH36S3GI GFH36S3G1I GFH42S3GI 1175 1150 1340 GFH42S3G1I GFH48S3GI GFH48S3G1I GFH60S3GI 1350 1150 1500 GFH60S3G1I Table 3-1-2 Installation Accessories List for Duct-type Indoor Unit Name & Shape...
  • Page 58 U-Match Series DC Inverter Service Manual Warning: The height of installation for the indoor unit should be 2.5m above. 1.1.6 Drain Piping Work Installation of Drainage Pipeline: CAUTION! Install the drain hose in accordance with the instructions in this installation manual and keep the area warm enough to prevent condensation.
  • Page 59 U-Match Series DC Inverter Service Manual (5) Use a suitable drain hose, and see Table 3-2-4 for its size. (6) There is a drain port on both the left and right sides. Select he drain port to match the local conditions.
  • Page 60 U-Match Series DC Inverter Service Manual Ceiling ≤300mm(11-3/4inch) Hoisting stand 1000~1500mm(39-3/8~59inch) Drain hose(attachment) Drain raising hose Clamp(attachment) Figure 3-1-14 a. The vertical height of the drain hose should be 75mm or less so that it is unnecessary for the drain port to withstand additional force.
  • Page 61 U-Match Series DC Inverter Service Manual 1.1.7 Installation of air duct Dimensions of the Supply Air Outlet/Return Air Inlet 21mm(7/8inch) Figure 3-1-17 Supply Air Outlet Figure 3-1-18 Return Air Inlet Table 3-1-3 Supply Air Outlet Return Air Inlet Item Model...
  • Page 62 U-Match Series DC Inverter Service Manual CAUTION! ①. The maximum length of the duct means the maximum length of the supply air duct plus the maximum length of the return air duct. ②. The duct is rectangular and connected with the air inlet/outlet of the indoor unit. Among all supply air outlets, at least one should be kept open.

  • Page 63: Installation Of Cassette Type

    U-Match Series DC Inverter Service Manual 1.2 Installation of Cassette Type 1.2.1 Before Installation After receiving the machine, please check for any transport damage. If finding any surface or internal damage, please immediately report to the transport company or equipment company in writing.
  • Page 64 U-Match Series DC Inverter Service Manual ≥1500mm ≥1500mm (59inch) (59inch) Figure 3-1-24 Table 3-1-5 Models mm (inch) GKH24S3GI 260(10-1/4) GKH36S3GI 340(13-3/8) GKH42S3GI 340(13-3/8) GKH48S3GI 320(12-5/8) 1.2.3 Installing the Main Body Unit Nut(field supplied) Gas(attachment) Insert Gasket anchor board(attachment) Hoisting stand...
  • Page 65 U-Match Series DC Inverter Service Manual 1.2.4 Installing the Suspension Bolts (1) Using the installation template, drill holes for bolts (four holes) (Figure 3-1-40). (2) Install the bolts to the ceiling at a place strong enough to hang the unit. Mark the bolt positions from the installation template.
  • Page 66 U-Match Series DC Inverter Service Manual (2) Place the panel at the unit, and latch the hooks beside and opposite the swing flap motor. (3) Latch other two hooks. (4) Tighten four hexagonal screws under the latches about 15mm (5/8inch).
  • Page 67 U-Match Series DC Inverter Service Manual (9) Wire the swing flap motor as shown in Figure 3-1-48. Connect them to the main body according to the size of terminals Figure 3-1-48 1.2.7 Dimension Data For the units: 24k~48k Bottom face of ceiling...
  • Page 68 U-Match Series DC Inverter Service Manual Indoor unit drain hose Extension drain piping (commercially available) Insulating tube Insulating tape (commercially (accessory) available) Figure 3-1-50 1.2.9 Installing the Drain Pipes (1) Insert the drain pipe to the drain outlet of the unit and then tighten the clamp securely with tape.
  • Page 69 U-Match Series DC Inverter Service Manual (6) Install one water trap for each unit. (7) Installation of water trap shall consider easy cleaning in the future. Joint Indoor unit Indoor unit Indoor unit Joint Figure 3-1-52 Figure 3-1-53 Figure 3-1-54 (8) Connection of drainage branch pipe to the standpipe or horizontal pipe of drainage main pipe.

  • Page 70: Outdoor Unit Installation

    U-Match Series DC Inverter Service Manual 1~1.5m(3-2/7~5feet) √ (Correct) 1/100 or more gradient × (wrong ) Figure 3-1-59 1.2.11 Testing of Drain Piping After piping work is finished, check if drainage flows smoothly. Shown in the Figure 3-1-61, Add approximately 1liter of water slowly into the drain pan and check drainage flow during COOL running.

  • Page 71: Installation Site

    U-Match Series DC Inverter Service Manual Ensure that the place of installation is far from the area where the inflammable or explosive substances are stored, thus to avoid possible explosion or fire due to leakage. 2.2 Installation Site WARNING ①. Install the unit where it will not be tilted by more than 5° .

  • Page 72: Dimension Data

    U-Match Series DC Inverter Service Manual damping pad or spring damper. To install the drainage pipe, please insert the drainage joint to the drainage hole on the outdoor chassis and connect a drainage pipe on the drainage joint. (The installing height of outdoor unit shall be at least 5cm if drainage joint is to be used).
  • Page 73 U-Match Series DC Inverter Service Manual (4) Check if the flare part is spread evenly and there are no cracks (see Figure 3-2-3). 90° ± 1° Figure 3-2-3 3.1.2 Bending Pipes (1) The pipes are shaped by your hands. Be careful not to collapse them.
  • Page 74 U-Match Series DC Inverter Service Manual Sponge Threaded fastener(×4) Heat insulation sheath (for the liquid tube) Heat insulation sheath (for the gas tube) Gas inlet pipe Liquid pipe Figure 3-2-5 Table 3-2-2 Flare nut tightening torque Pipe Diameter Tightening Torque 1/4〞（Inch）...
  • Page 75 U-Match Series DC Inverter Service Manual 3.1.6 Heat Insulation on the Pipe Joints (Indoor Side Only) Stick coupler heat insulation (large and small) to the place where connecting pipes. Figure 3-2-7 3.1.7 Vacuum and Gas Leakage Inspection CAUTION! Do not purge the air with refrigerants but use a vacuum pump to vacuum the installation! There is no extra refrigerant in the outdoor unit for air purging! 3.1.7.1 Vacuum...
  • Page 76 U-Match Series DC Inverter Service Manual Pressure gauge (Low-pressure) gauge manifold Pressure gauge (Hi-pressure) Switch (Low-pressure) Switch (Hi-pressure) Connection pipe Connection pipe (to indoor unit) Liquid valve Gas valve Service pipe Hose Service port Hose with the valve pin Vacuum pump Figure 3-2-8 Note: For the large-sized unit, it has the service port for both the gas valve and the liquid valve.

  • Page 77: Specification Of Connection Pipe

    U-Match Series DC Inverter Service Manual 3.2 Specification of Connection Pipe 3.2.1 Duct Type Table 3-2-4 Item Size of Fitting Max. Height Difference Drainage pipe(Outer Pipe (inch) Max. Pipe between Indoor Unit Diameter × wall Length (m) and Outdoor Unit (m)

  • Page 78: Electrical Wiring

    U-Match Series DC Inverter Service Manual CAUTION! ①. The power source capacity must be the sum of the air conditioner current and the current of other electrical appliances. When the current contracted capacity is insufficient, change the contracted capacity. ②. When the voltage is low and the air conditioner is difficult to start, contact the power company to raise the voltage.
  • Page 79 U-Match Series DC Inverter Service Manual WARNING ①. Before starting work, check that power is not being supplied to the indoor unit and outdoor unit. ②. Match the terminal block numbers and connection cord colors with those of the indoor unit side.
  • Page 80 U-Match Series DC Inverter Service Manual  The Power supply for indoor unitis from outdoor unit. Outdoor Unit Indoor Unit L2 N2 L N F C O Breaker Power:220-240V~50/60Hz 24~60k Figure 3-2-13 (5) Electric wiring of indoor unit side Remove the electric box cover from the electric box sub-assy and then connect the wire.
  • Page 81 U-Match Series DC Inverter Service Manual H1 H2 Figure 3-2-16 CAUTION! ①. The power cord and the wire of the fresh air valve are high-voltage, while the communication cord and connection wire of the wired controller are low-voltage. They should run separately against electromagnetic interference.
  • Page 82 U-Match Series DC Inverter Service Manual 2) The Power supply for indoor unitis from outdoor unit. Figure 3-2-18 Power lines should go along the right side plate. Communication lines between indoor and outdoor units also should go along the right side plate and keep away from power lines.
  • Page 83 U-Match Series DC Inverter Service Manual MAINTENANCE...

  • Page 84: Maintenance

    U-Match Series DC Inverter Service Manual MAINTENANCE 1 TROUBLE TABLE 1.1 Main Control Malfunction Table 1 Fault Display on Indoor Wired Controller Origin of Malfunction Error code malfunction Control description name signal When outdoor unit detects the high pressure switch is cut off for 3s successively, high pressure protection will occur.
  • Page 85 U-Match Series DC Inverter Service Manual Origin of Malfunction Error code malfunction Control description name signal If the indoor evaporator temperature sensor is detected of open circuit or short circuit for 5s successively, evaporator Malfunction of Evaporator temperature sensor malfunction will be reported. The unit can...
  • Page 86 U-Match Series DC Inverter Service Manual Origin of Malfunction Error code malfunction Control description name signal After the compressor starts operation in heating mode, if the outdoor unit detects the difference between evaporator temperature and indoor ambient temperature is lower than...

  • Page 87: Flow Chart Of Troubleshooting

    U-Match Series DC Inverter Service Manual 2 FLOW CHART OF TROUBLESHOOTING 2.1 Troubleshooting Flow Chart of Main Control Malfunction  E1 High Pressure Protection  E2 Freeze Protection Freeze protection is normal protection but not abnormal malfunction. If freeze protection occurs frequently during operation, please check if the indoor filter is with filth blockage or if the indoor air outlet is abnormal.
  • Page 88 U-Match Series DC Inverter Service Manual  E3 stands for three statuses: (1) Low pressure protection; (2) Refrigerant lacking protection; (3) Refrigerant recycling mode; 1) If enter refrigerant recycling mode through special operation, the displayed E3 is not an error code.
  • Page 89 U-Match Series DC Inverter Service Manual  E4 Discharge Protection  E6 Communication Malfunction Communication malfunction Check if the Reconnect the communication wire between communication indoor unit and outdoor unit is wire connected well Check if there is Replace the...
  • Page 90 U-Match Series DC Inverter Service Manual  E9 Full Water Protection E9 protection Short circuit the full water If the unit is protection interface on indoor installed with mainboard according to the circuit water pump diagram Check if the water pump...
  • Page 91 U-Match Series DC Inverter Service Manual  F1 Malfunction of Evaporator Temperature Sensor Malfunction of evaporator temperature sensor Check if the evaporator Correctly insert the temperature sensor on temperature mainboard is inserted on the sensor on the needle stand correctly...
  • Page 92 U-Match Series DC Inverter Service Manual  F3 Malfunction of Outdoor Ambient Temperature Sensor Malfunction of outdoor ambient temperature sensor Check Correctly insert the if the outdoor ambient temperature sensor on temperature sensor on mainboard the needle stand is inserted on the needle stand...
  • Page 93 U-Match Series DC Inverter Service Manual  F5 Malfunction of Wired Controller Temperature Sensor Malfunction of wired controller temperature sensor Replace the wired controller  H6 Malfunction of Outdoor Fan Motor Malfunction of discharge temperature sensor Check if the Correctly connect the...

  • Page 94: Troubleshooting Flow Chart Of Drive Malfunction

    U-Match Series DC Inverter Service Manual  E8 Malfunction of Indoor Fan Motor Malfunction of indoor fan motor Check if the Correctly connect the control wire of indoor fan motor is control wire of fan motor connected on the outdoor...
  • Page 95 U-Match Series DC Inverter Service Manual  P8 IPM or PFC over-temperature protection P8 is displayed on the wired controller P8 is displayed in the mainboard 88 Indicating lamp Is the IPM or PFC module of mainboard tightened？ Replace the...
  • Page 96 U-Match Series DC Inverter Service Manual  P6 Drive-to-main-control communication error  Lc Compressor Startup Failure Lc is displayed on the wired controller Lc is displayed in the mainboard 88 indicating lamp Replace the mainboard. Does it work normally? Replace the...
  • Page 97 U-Match Series DC Inverter Service Manual  PU Charging circuit error PU is displayed on the wired controller PU is displayed in the mainboard 88 indicating lamp Is the PFC wire tightened or is the sequence right? Tighten the PFC...

  • Page 98: Interface

    U-Match Series DC Inverter Service Manual  H6 DC fan error H6 is displayed on the wired controller H6 is displayed in the mainboard 88 indicating lamp Is the motor phase Adjust the motor sequence right? phase sequence Is the Fan wire terminal Tighten the fan loose？...
  • Page 99 U-Match Series DC Inverter Service Manual SILK-SCREEN INTERFACE INTERFACE INSTRUCTION AC-L Live wire input Live wire input AC-N Neutral wire input Neutral wire input Power supply interface to the Control power output[1- drive PWR 1 voltage,3- GND] 1-pin: DC bus voltage...
  • Page 100 U-Match Series DC Inverter Service Manual  GUHD24NS3GO/GUHD36NS3GO (1) Driving Board Printing Interface Printing Interface L2_2 PFC induction wire (blue) L1_1 PFC induction wire (brown) Neutral wire input (white) AC-L Live wire input (red) COMM/COMM1 Communication interface JTAG1 (Reserved) Control power input...
  • Page 101 U-Match Series DC Inverter Service Manual (2) Filtering Board Printing Interface Printing Interface N-OUT1 Neutral wire output 1 (white) N-OUT Neutral wire output (white) L-OUT Live wire output (red) Grounding wire (Reserved) AC-L Live wire input (red) AC-N Neutral wire input (white) ...

  • Page 102: Ipm, Pfc Testing Method

    U-Match Series DC Inverter Service Manual (2) Filtering Board: Printing Interface Printing Interface N-OUT Neutral wire output (white) L-OUT Live wire output (red) DC-BUS DC bus interface (connect to drive board) AC-L Live wire input (red) Neutral wire input (white)
  • Page 103 U-Match Series DC Inverter Service Manual L2-1respectively as shown in the following figure to measure the voltage between L1-2P and.L2-1 P. Step 2: put the red probe on the place N and the black one on the wiring terminal L1-2, L2-1respectively as shown in the following figure to measure the voltage between N L1-2 and NL2-1.

  • Page 104: Wiring Diagram

    U-Match Series DC Inverter Service Manual 3 WIRING DIAGRAM 3.1 Outdoor unit The actual wiring should always refer to the wiring diagram of the unit. Model: GUHD24NS3GO Model: GUHD36NS3GO...
  • Page 105 U-Match Series DC Inverter Service Manual Model: GUHD42NS3GO Model: GUHD48NS3GO/GUHD60NS3GO...

  • Page 106: Indoor Unit

    U-Match Series DC Inverter Service Manual 3.2 Indoor unit The actual wiring should always refer to the wiring diagram of the unit. 3.2.1 Duct Type  Model: GFH24S3GI  GFH24S3G1I...
  • Page 107 U-Match Series DC Inverter Service Manual  Model: GFH36S3GI/GFH42S3GI/GFH48S3GI/GFH60S3GI  Model: GFH36S3G1I/GFH42S3G1I/GFH48S3G1I/GFH60S3GI...
  • Page 108 U-Match Series DC Inverter Service Manual 3.2.2 Cassette Type  Model: GKH24S3GI/GKH36S3GI/GKH42S3GI  Model: GKH48S3GI...

  • Page 109: Disassembly And Assembly Procedure Of Main Parts

    U-Match Series DC Inverter Service Manual 4 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS 4.1 Outdoor Unit Disassembly and Assembly of external casing Remark : Step Illustration Handling Instruction 1. Remove the top cover and handle; 1. Remove external casing 2.
  • Page 110 U-Match Series DC Inverter Service Manual 36/42k Disassembly and Assembly of external casing Remark : Step Illustration Handling Instruction 1. Remove the top cover and handle; 1. Remove external casing 2. Remove the grille, outer case and right side plate.
  • Page 111 U-Match Series DC Inverter Service Manual Assemble the unit in the reverse 5. Assemble unit procedures of disassembly. 48/60k： Disassembly and Assembly of external casing Remark : Step Illustration Handling Instruction 1. Remove the top cover and handle; 1. Remove external casing 2.

  • Page 112: Indoor Unit

    U-Match Series DC Inverter Service Manual 1. Discharge the refrigerant inside the pipeline and recycle the refrigerant during discharging; 2. Unsolder the 4-way valve assy 4. Remove compressor from compressor; 3. Remove the nut fixing compressor; 4.Take away the compressor from chassis.
  • Page 113 U-Match Series DC Inverter Service Manual Rotate the propeller housing to the 4. Overturn the propeller inlet according arrow housing direction. Use inner hexagonal spanner to 5. Loosen the fan and motor. loosen the screws on fan and remove the clamp fixing the motor.
  • Page 114 U-Match Series DC Inverter Service Manual Disassemble the fastening screw and remove the electrical parts box. (As is 2. Disassembly of electric shown in the graph, there are 2 parts box fastening screws in the circle and the screws in the direction of arrow shall be disassembled too.)
  • Page 115 U-Match Series DC Inverter Service Manual Disassembly of evaporator Remark: Make sure that the power supply is cut off and protect the copper tube and aluminum fin. If the time for disassembly shall be long, put the copper tube under pressurized condition.
  • Page 116 U-Match Series DC Inverter Service Manual 2. Remove the water tray Remove the water tray. 3. Loosen the bolts fixing Use spanner to loosen the bolts fixing the fan the fan. 4. Remove the fan Remove the fan. 5. Loosen the screws...
  • Page 117 U-Match Series DC Inverter Service Manual 8. Mount the fan and Mount the fan and use spanner to tighten the fixing bolts tighten the bolts fixing the fan. 9. Mount the water tray Use screwdriver to loosen the screws and tighten the screws fixing the water tray.
  • Page 118 U-Match Series DC Inverter Service Manual 4. Take out the pump and Take out the pump and replace it replace it 5. Connect the drainage Connect the drainage pipe and use pipe and tighten the screwdriver to tighten the screws fixing screws fixing the water the water pump.

  • Page 119: Exploded Views And Spare Part List

    U-Match Series DC Inverter Service Manual 5 EXPLODED VIEWS AND SPARE PART LIST 5.1 Outdoor Unit  Model: GUHD24NS3GO Exploded Views and spare parts list: GUHD24NS3GO Name of Part Product Code CF090W0800 part Code Quantity Front Grill '22415003 Cabinet '01435004P...
  • Page 120 U-Match Series DC Inverter Service Manual Compressor Gasket '76713066 Bidirection Strainer '07220016 Electronic Expansion Valve '07334447 Electric Expand Valve Fitting '4304413208 Strainer '07225088 Valve Support Sub-Assy '0171501201P Valve '07100005 Cut off Valve '07133157 Right Side Plate Sub-Assy '01315200069P Valve Cover...
  • Page 121 U-Match Series DC Inverter Service Manual  Model: GUHD36NS3GO Exploded Views and spare parts list: GUHD36NS3GO Name of Part Product Code CF090W0860 part Code Quantity Front Grill '22415005 Cabinet '01435007P Handle '26235253 Front Side Plate Sub-Assy '01305508 Axial Flow Fan...
  • Page 122 U-Match Series DC Inverter Service Manual Cut off Valve '071302391 Cut off Valve '07133157 Strainer '0741410000601 Electronic Expansion Valve '07135176 Electric Expand Valve Fitting '43000344 Right Side Plate Sub-Assy '01315200068P Temperature Sensor '39008000049G Rear Grill '01475012 Clapboard Sub-Assy '0124525303 Condenser Assy...
  • Page 123 U-Match Series DC Inverter Service Manual  Model: GUHD42NS3GO Exploded Views and spare parts list: GUHD42NS3GO Name of Part Product Code CF090W0870 part Code Quantity Front Grill '22415005 Cabinet '01435007P Handle '26235253 Front Side Plate Sub-Assy '01305508 Axial Flow Fan...
  • Page 124 U-Match Series DC Inverter Service Manual Electronic Expansion Valve '07135176 Electric Expand Valve Fitting '43000344 Right Side Plate Sub-Assy '01315200068P Temperature Sensor '39008000049G Rear Grill '01475012 Clapboard Sub-Assy '0124525303 Condenser Assy '01125200196 Strainer '07215201 Silencer '07245012 Pressure Protect Switch '46020003...
  • Page 125 U-Match Series DC Inverter Service Manual  Model: GUHD48NS3GO Exploded Views and spare parts list: GUHD48NS3GO Name of Part Product Code CF090W0880 part Code Quantity Front Grill '22415002 Cabinet '01515204P Handle '26235253 Front Side Plate '01315364P Axial Flow Fan '10335008...
  • Page 126 U-Match Series DC Inverter Service Manual Cut off Valve '07130209 Bidirection Strainer '07220016 Strainer '07415210 Electronic Expansion Valve '07135176 Cut off Valve '07103030 Rear Side Plate Sub-Assy '01315462P Temperature Sensor '3900028025G Rear Grill '01575205 Silencer '07245012 4-way Valve '43000338 Pressure Protect Switch...
  • Page 127 U-Match Series DC Inverter Service Manual  Model: GUHD60NS3GO Exploded Views and spare parts list: GUHD60NS3GO Name of Part part Code Quantity part Code Quantity Front Grill '22415002 Cabinet '01515204P Front Side Plate '01315364P Axial Flow Fan '10335008 Chassis Sub-Assy...
  • Page 128 U-Match Series DC Inverter Service Manual Liquid Accumulator Clamp '02145435 Gas-liquid Separator '07225016 Cut-off Valve '07130212 Valve Support Sub-Assy '0171500101 Temperature Sensor '3900028025G Rear Side Plate Sub-Assy '01315462P Handle '26235253 Cut off Valve '07130209 Bidirection Strainer '07220016 Silencer '07245012 Strainer...

  • Page 129: Indoor Unit

    U-Match Series DC Inverter Service Manual 5.2 Indoor Unit 5.2.1 Duct Type  Model: GFH24S3GI exploded view and spare parts list...
  • Page 130 U-Match Series DC Inverter Service Manual GFH24S3GI Name of Part Product Code CF060N0560 part Code Quantity Filter Sub-Assy '111253031 Choke Plug of Drain Pipe '76712455 Water Tray Assy '01285323 Lower Cover Plate Sub-Assy '15265301 Strainer '07415210 Propeller Housing(Lower) '26904100052 Right Side Plate Sub-Assy...
  • Page 131 U-Match Series DC Inverter Service Manual  Model: GFH24S3G1I exploded view and spare parts list...
  • Page 132 U-Match Series DC Inverter Service Manual GFH24S3G1I Name of Part Product Code CF060N0561 part Code Quantity Filter Sub-Assy '111253031 Choke Plug of Drain Pipe '76712455 Water Tray Assy '01285323 Liquid Level Switch '4501801203 Pump Drainpipe '05235301 Water Pump '43138220 Lower Cover Plate Sub-Assy...
  • Page 133 U-Match Series DC Inverter Service Manual  Model: GFH36S3GI exploded view and spare parts list...
  • Page 134 U-Match Series DC Inverter Service Manual GFH36S3GI Name of Part Product Code CF060N0650 part Code Quantity Display Board '30294000007 Ambient Temperature Sensor '3900012123 Tube sensor '3900012128 Hook '02205209 Left Side Plate Sub-Assy '01315200064 Propeller Housing(Upper) '26905200010 Centrifugal Fan '10425200002 Front Side Plate Sub-Assy...
  • Page 135 U-Match Series DC Inverter Service Manual  Model: GFH36S3G1I exploded view and spare parts list...
  • Page 136 U-Match Series DC Inverter Service Manual GFH36S3G1I Name of Part Product Code CF060N0660 part Code Quantity Display Board '30294000007 Ambient Temperature Sensor '3900012123 Tube sensor '3900012128 Hook '02205209 Left Side Plate Sub-Assy '01315200064 Propeller Housing(Upper) '26905200010 Centrifugal Fan '10425200002 Front Side Plate Sub-Assy...
  • Page 137 U-Match Series DC Inverter Service Manual  Model: GFH42S3GI/GFH48S3GI exploded view and spare parts list...
  • Page 138 U-Match Series DC Inverter Service Manual GFH42S3GI GFH48S3GI Name of Part Product Code CF060N0670 Product Code CF060N0670 part Code Quantity part Code Quantity Display Board '30294000007 '30294000007 Ambient Temperature Sensor '3900012123 '3900012123 Tube sensor '3900012128 '3900012128 Hook '02205209 '02205209 Left Side Plate Sub-Assy...
  • Page 139 U-Match Series DC Inverter Service Manual  Model: GFH42S3G1I/GFH48S3G1I exploded view and spare parts list...
  • Page 140 U-Match Series DC Inverter Service Manual GFH42S3G1I GFH48S3G1I Name of Part Product Code CF060N0680 Product Code CF060N0680 part Code Quantity part Code Quantity Display Board '30294000007 '30294000007 Ambient Temperature Sensor '3900012123 '3900012123 Tube sensor '3900012128 '3900012128 Hook '02205209 '02205209 Left Side Plate Sub-Assy...
  • Page 141 U-Match Series DC Inverter Service Manual  Model: GFH60S3GI exploded view and spare parts list:...
  • Page 142 U-Match Series DC Inverter Service Manual GFH60S3GI Name of Part Product Code CF060N0550 part Code Quantity Left Side Plate Sub-Assy '01315376 Front Side Plate Assy '01314627 Motor '15705306 Brushless DC Motor '15709400008 Motor '15705307 Bottom Cover Plate Assy '01265357 Right Side Plate Sub-Assy...
  • Page 143 U-Match Series DC Inverter Service Manual  Model: GFH60S3G1I exploded view and spare parts list:...
  • Page 144 U-Match Series DC Inverter Service Manual GFH60S3G1I Name of Part Product Code CF060N0551 part Code Quantity Left Side Plate Sub-Assy '01315376 Front Side Plate Assy '01314627 Motor '15705306 Brushless DC Motor '15709400008 Motor '15705307 Bottom Cover Plate Assy '01265357 Right Side Plate Sub-Assy...
  • Page 145 U-Match Series DC Inverter Service Manual 5.2.2 Cassette Type  Model: GKH24S3GI/GKH36S3GI/GKH42S3GI exploded view and spare parts list.
  • Page 146 U-Match Series DC Inverter Service Manual GKH24S3GI/GKH36S3GI/GKH42S3GI ET010N1160\ET010N1150\ET Name of Part Product Code 010N1170 part Code Quantity Electric Box Assy 100002000122 Terminal Board 42010259 Diversion Circle 26909400067 Remote Controller 30510516 Tube Sensor 39000286 Temperature Sensor 390000453 Drain Hose Sub-Assy 5232702...
  • Page 147 U-Match Series DC Inverter Service Manual  Model: GKH48S3GI exploded view and spare parts list.
  • Page 148 U-Match Series DC Inverter Service Manual GKH48S3GI Name of Part Product Code ET010N1180 part Code Quantity Electric Box Assy 100002000122 Terminal Board 42010259 Terminal Board 4201025301 Filter Board 300020000001 Main Board 300002000132 Water Tray Assy 69000014 Centrifugal Fan 10429401 Evaporator Assy...
  • Page 149 U-Match Series DC Inverter Service Manual JF00302907...

This manual is also suitable for:

Guhd24ns3goGuhd36ns3goGuhd42ns3goGuhd48ns3goGuhd60ns3goGfh24s3gi ... Show all

Table of Contents