Gree GMV-160WL/A-T Service Manual
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Gree GMV-160WL/A-T Service Manual

Dc inverter multi vrf system ii
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DC INVERTER MULTI VRF SYSTEM II
SERVICE MANUAL
R410A(GC201504- III )

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Summary of Contents for Gree GMV-160WL/A-T

  • Page 1 DC INVERTER MULTI VRF SYSTEM II SERVICE MANUAL R410A(GC201504- III )

  • Page 2: Table Of Contents

    DC Inverter Multi VRF System II Service Manual Contents PRODUCT ................................1 ................................1 RODUCT ................................. 1 OMENCLATURE 2.1 Nomenclature of outdoor units ........................1 ..............................2 RODUCT EATURES 3.1 General introduction ............................2 3.2 Features ................................2 ................................3 PECIFICATIONS 4.1 Specifications ..............................
  • Page 3 DC Inverter Multi VRF System II Service Manual 4.1 Power distribution of unit ........................... 78 4.2 Main electric parts ............................79 4.3 Circuit diagram .............................. 79 ..............................81 EMOVAL OF ARTS 5.1 Key parts ................................. 81 5.2 Removal of key parts ........................... 83 ............................
  • Page 4 DC Inverter Multi VRF System II Service Manual PRODUCT...

  • Page 5: Product

    □ □ □ □ □ □ Description Options Product code GMV-Gree Multi VRF Units Blank-T1 condition; T2-low temperature climate; Suitable climate T3-high temperature climate Unit type DC Inverter (omit) Q—Heat Recovery; S—Water Heater; W—Water-cooled Function code Unit; X—Fresh Air Unit Leave blank if above functions are unavailable.

  • Page 6: Product Features

    3 Product Features 3.1 General introduction Gree DC Inverter Multi VRF System II is the latest generation of DC inverter units. One set of air-cooled outdoor unit can be connected with multiple direct evaporation indoor units that are of the same or different forms and capacity.

  • Page 7: Specifications

    DC Inverter Multi VRF System II Service Manual 4 Specifications 4.1 Specifications GMV-120WL/A GMV-140WL/A GMV-160WL/A GMV-120WL/A GMV-140WL/A GMV-160WL/A Model Cooling capacity 12.1 12.1 Heating capacity 16.5 18.5 16.5 18.5 Circulating air 6000 6300 6600 6000 6300 6600 volume dB(A Noise Refrigerant charge volume Energy efficiency...

  • Page 8: Product Capacity Correction

    DC Inverter Multi VRF System II Service Manual 5 Product Capacity Correction 5.1Correction factor of indoor and outdoor temperature 1）Correction factor of cooling capacity 2）Correction factor of heating capacity 5.2 Correction factor of pipe length and height difference  Symbol description: Hp: Height difference in case indoor unit is below outdoor unit (m);...
  • Page 9 DC Inverter Multi VRF System II Service Manual Variance ratio of heating capacity...

  • Page 10: Principal Of Operation

    DC Inverter Multi VRF System II Service Manual 6 Principal of Operation Components in flowcharts are presented according to the following table: Name Compressor 4-way valve Cut-off valve One-way valve Capillary tube Symbol Gas-liquid Pressure Pressure Axial-flow finned heat Electronic expansion Name separator switch...
  • Page 11 DC Inverter Multi VRF System II Service Manual CONTROL...

  • Page 12: Control

    2 Remote Monitoring System 2.1 General introduction Gree CAC Remote Monitoring System is an automatic central management system as well as an intelligent power management system based on internet or local area network. It can provide a complete set of air conditioning solutions, including remote monitor, malfunction alarms and visual management, for the real-time, safe and efficient management of air conditioners.

  • Page 13: Monitoring Software

    This will not only improve the productivity, but also reduce cost on human resources, property and management. Gree Commissioning Tool Kits can monitor and control the 2nd generation of Gree Multi VRF. User can monitor and control units by monitoring the computer. This software is an efficient tool for the intelligent air conditioning management as well as installation and after-sales service and commissioning.

  • Page 14: Parts Introduction

    Instruction manual 66174100018 Instruction manual 3.3.2 Gree USB data converter 3.3.2.1 Functions introduction Gree USB data converter will convert the RS485, HBS and CAN commucation within the air conditioners into the communication that is recognizable by computer’s USB interface. 3.3.2.2 Appearance...
  • Page 15 CAN data interface. CAN interface exhibits no polarity (A and B are equal).  HBS interface: When HBS converter is under HBS communication mode, connect air conditioner’s HBS data interface. HBS interface exhibits no polarity (This interface is not yet available for Gree debugger and the monitoring software).
  • Page 16 CAN interface of Gree USB converter. As shown below, the wire can be connected to the communication interface of outdoor unit or the communication interface of indoor unit:...

  • Page 17: Software Introduction

    Gree Commissioning Tool Kits is applicable to air conditioning system that comsists of multiple series and models. Later, it will be developed to cover all series of Gree central air conditioners, such as multi VRF, centrifugal chiller, screw type chiller, ground source heat pump units, modular units, fan coiled units, close control units, etc.
  • Page 18 Put the CD into the CD-ROM. If it’s automically running, then the following display will be shown. Or double-click the file “Launcher.exe”. For the first time to use Gree Commissioning Tool Kits, install these programmes: .Net Framework 4.0, USB Data Converter, Access Driver (necessary for versions below OFFICE 2007), Gree Debugger.
  • Page 19 DC Inverter Multi VRF System II Service Manual This flowchart describes basically the software installation process. See below for details. 3.4.1.3 Installation process (1) Install .Net Framework 4.0  If your computer has installed .Net Framework 4.0 or versions above, there’s no need to install again.
  • Page 20 DC Inverter Multi VRF System II Service Manual  Installation is in progress.
  • Page 21 DC Inverter Multi VRF System II Service Manual  Click “Finish” to complete the installation. (2) Install Access Driver  Before operating Gree commissioning software, please first install Access Driver (necessary for versions below OFFICE 2007). Click “Install Access Driver”.  Click ”Next”.
  • Page 22 DC Inverter Multi VRF System II Service Manual one, or click “Install” to continue the...
  • Page 23 DC Inverter Multi VRF System II Service Manual installation. Installation is in progress.
  • Page 24 DC Inverter Multi VRF System II Service Manual e installation. (3) Install Gree Debugger  Before installing Gree debugger, make sure that your computer is installed with .Net Framework 4.0 or versions above. Then click “Install Gree Debugger”.  Click “Next”.
  • Page 25 DC Inverter Multi VRF System II Service Manual  Click “Browse” to select installation folder. If no change is needed for the folder, click “Next” to continue the installation.  Click “Next”.
  • Page 26 DC Inverter Multi VRF System II Service Manual  Installation is in progress.  Click “Close” to complete the installation.
  • Page 27 DC Inverter Multi VRF System II Service Manual (4) Install USB Converter Driver  If USB converter driver is already installed in your computer, this part can be skipped. Otherwise, click “Install USB Converter Driver”.  Then the following installation window will be shown.
  • Page 28 DC Inverter Multi VRF System II Service Manual  This window will exit after installation is finished. (5) Install Gree USB Data Converter  If converter baud rate is needed to be set, then converter configuring software must be installed.
  • Page 29 DC Inverter Multi VRF System II Service Manual  Then select the setup language. You can choose Chinese ”simplified”, Chinese “traditional” or English. Then click “OK”.  Click “Next”.  Tick “I accept the agreement”. Then click “Next” to continue installation.
  • Page 30 DC Inverter Multi VRF System II Service Manual  Click “Browse” to select your expected installation folder. Click “Next” to continue. Click “Browse” to change folder. Click “Next” to continue. ...
  • Page 31 DC Inverter Multi VRF System II Service Manual  If you want to create s desktop shortcut, tick “Creat a desktop icon”. Then click “Next” to continue.  Destiniation location, folder and additional task will be shown in the next step. If you need to change any of it, please click “Back”.
  • Page 32 DC Inverter Multi VRF System II Service Manual  Installaiton is in progress. Click “Finish” to complete the installation. ...
  • Page 33 DC Inverter Multi VRF System II Service Manual 3.4.2 Data monitoring  Start up Gree Debugger.  On the original interface, user can select language and units system. Click “OK” to confirm the defaulted language and units system and start up the software.
  • Page 34 DC Inverter Multi VRF System II Service Manual   Select system of units.   If units you want to monitor are already connected, and able to communicate normally, with correct COM and protocal, then you may click “Connect” to enter the interface of numbers. Otherwise, connect in accordance with the connection diagram shown below.
  • Page 35 DC Inverter Multi VRF System II Service Manual   COM selection: the serial port in your computer can be detected automatically. You just need to select your desired serial port.   Protocal selection: This is to select the communication method of your units. Currently, CAN is...
  • Page 36 DC Inverter Multi VRF System II Service Manual applicable to the units.   After the selection, click “Connnect”. If units can communicate normally with computer, then the interface of numbers will be shown soon. Otherwise, “Connecting” will be shown. ...
  • Page 37 DC Inverter Multi VRF System II Service Manual   There are several display zones on this interface. You can hide devices information and system information by clicking devices information icon and system icon . Display zones of indoor unit information and errors can be dragged up and down at the dividing lines. As to the display zone of outdoor modules information, it can show information of only one module and hide information of others (two modules are defaulted to be shown).
  • Page 38 DC Inverter Multi VRF System II Service Manual monitoring.  3.4.3 Project debugging  Click icon of “Debug” on the menu bar and the interface will be switched to project debugging, where auto debugging will be started from up to down and from left to right. Note: Debugging function is only applicable to a single-system network.
  • Page 39 DC Inverter Multi VRF System II Service Manual indicates that debugging is in progress while indicates debugging is completed.   If “OK” button is displayed, it means user needs to judge whether to continue debugging or not. and relevant information will be shown for your reference. Click “Close” to close the Click icon pop-up (For No.3 Confirm ODU Basic Module NO.
  • Page 40 DC Inverter Multi VRF System II Service Manual   Icon indicates that there is problem found during debugging. Debugging will not be completed unless problem is solved (after problem is solved, step without “OK” button will switch to the next step automatically, otherwise user needs to click “OK”...
  • Page 41 DC Inverter Multi VRF System II Service Manual  During debugging, a click on “Break” can stop debugging. Click “Start” to resume debugging and then debugging will be finished step by step. For No.10 ODU Valves Check Before Startup, there are “Back”...
  • Page 42 DC Inverter Multi VRF System II Service Manual  Tick the indoor units that need setting in the IDU selection zone or you may click “Select All” to select all of them or “Select Inverted” to select none of them. After selection, the current values of the corresponding parameters will be displayed in the zone of settings.
  • Page 43 DC Inverter Multi VRF System II Service Manual 3.4.5 Other functions Capture screen  Click icon of “Capture Screen” to print the interface. If you want to open the interface, click “Open”.
  • Page 44 DC Inverter Multi VRF System II Service Manual Search for database folder  Click icon of “Open Data Folder” on the menu bar to open database folder.
  • Page 45 DC Inverter Multi VRF System II Service Manual Conversion of pressure value  Click icon of “Others” on the menu bar and then click “Display Settings” to select “High Low Pressure Value” and “Refrigerant Type”. Select “Temperature” and the pressure parameter displayed on the interface will be temperature.
  • Page 46 DC Inverter Multi VRF System II Service Manual Database saving of multiple systems  Click icon of “Others” on the menu bar and click “Database Save Settings” to select which system that needs to save database. Because there is a large quantity of data in a network that contains multiple systems, data of only one system can be saved.
  • Page 47 DC Inverter Multi VRF System II Service Manual Change database saving path and rebuild database  Change of database saving path and rebuilding of database should be set before the software starts monitoring (see below interface). Click “Change database saving path” and click “Browse” to change the saving path.
  • Page 48 Usage of converter  Gree commissioning software should be connected with CAN interface when converter is used. For air conditioners with a single system, connect D1 and D2 interfaces of the wiring board. For air conditioners with multiple systems, connect G1 and G2 interfaces of the wiring board.
  • Page 49 LEDs. Notice: If it’s the first time your PC uses Gree USB data converter, in order to prevent Gree USB data converter from being mistaken by your computer as other devices and make sure your mouse can work well, it is necessary to turn off the Serail Enumerator of computer after Gree USB data converter is connected.
  • Page 50 DC Inverter Multi VRF System II Service Manual Step 4: Right-click ”USB Serial Port (COM6) and then click ”Properties”. The dialog box of properties will then pop up.
  • Page 51 DC Inverter Multi VRF System II Service Manual Step 5: Then click ”Port Settings” in the dialog box.
  • Page 52 DC Inverter Multi VRF System II Service Manual Step 6: Click ”Advanced” and then a new dialog box will pop up. Find the ”Serial Enumerator” in the miscellaneous options and cancel the tick. Click ”OK” to exit.
  • Page 53 DC Inverter Multi VRF System II Service Manual Usage of converter configuring software:  When the converter is working, hold the button ”SET” for 5 sec. Function LED will be flickering, indicating that the converter has enter the baud rate setting mode. Then you can use the converter configuring software to set the baud rate of converter.
  • Page 54 DC Inverter Multi VRF System II Service Manual Ex-factory defaulted baud rate: (unit: bps) AC is connected with Baud rate of air conditioner interface Baud rate of USB interface 115200 20000/50000 self-adaptive 57600 38400 RS485 9600 9600 Baud rate look-up table for RS485 interface (unit: bps) 4800 9600 19200...
  • Page 55 DC Inverter Multi VRF System II Service Manual  Select the function that is to be set and the corresponding baud rate (refer to the look-up table) in the “Converter Setup”.Then click “Set”.  If you want to restore ex-factory settings, click “Default” to restore the default settings.
  • Page 56 DC Inverter Multi VRF System II Service Manual Click “Get” to get the current setting details of converter.   Switchover of Software Languages...
  • Page 57 DC Inverter Multi VRF System II Service Manual...
  • Page 58 DC Inverter Multi VRF System II Service Manual Installation...

  • Page 59: Installation

    DC Inverter Multi VRF System II Service Manual INSTALLATION 1 Engineering Installation Preparation and Notice 1.1 Installation notice Personnel and property safety are highly concerned during the entire installation process. Installation implementation must abide by relevant national safety regulations to ensure personnel and property safety.

  • Page 60: Installation Materials Selection

    DC Inverter Multi VRF System II Service Manual Installation Problem Possible Consequence Residual water in IDUs can affect the normal operation of the Water drainage from the condensate system. The possible water leakage can damage the IDU's water pipe is not smooth. decoration.

  • Page 61: Condensate Water Pipe

    DC Inverter Multi VRF System II Service Manual R410A Refrigerant System OD (mm/inch) Wall Thickness (mm) Model Φ6.35(1/4) ≥0.8 Φ9.52(3/8) ≥0.8 Φ12.70(1/2) ≥0.8 Φ15.9(5/8) ≥1.0 Φ19.05(3/4) ≥1.0 f. After the inner part of the copper pipe is cleaned and dried, the inlet and outlet must be sealed tightly by using pipe caps, plugs or adhesive tapes.

  • Page 62: Installation Of Outdoor Unit

    DC Inverter Multi VRF System II Service Manual b. U-steel: 14# or above; c. Angle steel: 30mm×30mm×3mm or above; d. Round steel: Φ10mm or above 3 Installation of outdoor unit 3.1 Check before installation a. Before installation, please check the power cord if it complies with the power supply requirement on the nameplate.

  • Page 63: Outline Dimension And Position Of Installation Hole

    When carrying the outdoor unit, hang the unit in four directions with two sufficient ropes. In order to avoid excursion from the center, the angel of ropes must be smaller than 40º during hanging and moving. Model GMV-120WL/A-T GMV-140WL/A-T GMV-160WL/A-T 1345 GMV-120WL/A-X GMV-140WL/A-X GMV-160WL/A-X 3.7 Installation space requirement...
  • Page 64 DC Inverter Multi VRF System II Service Manual...

  • Page 65: Debugging &Maintenance

    DC Inverter Multi VRF System II Service Manual DEBUGGING &MAINTENANCE 1 Debugging of Unit Caution: 1. After the initial installation is finished and the main board of outdoor unit is replaced, it must perform debugging. Otherwise, the unit can’t operate. 2.
  • Page 66 DC Inverter Multi VRF System II Service Manual Stage process instruction for debugging Debugging —— Process code Status code code Code instruction and operation LED1 LED2 LED3 method Process Display Display Display Code Code Code status status status address is finished. 2s later, it will enter into the next step determination automatically.
  • Page 67 DC Inverter Multi VRF System II Service Manual Stage process instruction for debugging Debugging —— Process code Status code code Code instruction and operation LED1 LED2 LED3 method Process Display Display Display Code Code Code status status status The rated capacity ratio for indoor unit is low.
  • Page 68 DC Inverter Multi VRF System II Service Manual Stage process instruction for debugging Debugging —— Process code Status code code Code instruction and operation LED1 LED2 LED3 method Process Display Display Display Code Code Code status status status reached to 8h. 2s later, it will enter into the next step.

  • Page 69: Parameters Reference Value For The Normal Operation Of Unit

    DC Inverter Multi VRF System II Service Manual Stage process instruction for debugging Debugging —— Process code Status code code Code instruction and operation LED1 LED2 LED3 method Process Display Display Display Code Code Code status status status according ambient temperature to start up operation.
  • Page 70 DC Inverter Multi VRF System II Service Manual Parameters Debugging project Unit Reference value name temperature of 25~35℃, the high pressure value for the system is 44~53℃; ●The unit will operate at heating mode when the ambient temperature is above -5℃. The high pressure value for the system is 40~52℃.

  • Page 71: Malfunction List

    DC Inverter Multi VRF System II Service Manual 2 Malfunction List 2.1 Malfunction list for the wired controller Display Display Display Content Content Content code code code Wrong number of indoor Malfunction of Malfunction of water unit for one-to-more indoor indoor unit temperature sensor unit...

  • Page 72: Status Display Table For Indicators On Main Board Of Outdoor Unit

    DC Inverter Multi VRF System II Service Manual 2.2 Status display table for indicators on main board of outdoor unit Definition: LED1: It displays “00” for hot water mode as for DC Inverter Side Discharge VRF   LED2: It displays “AC” for AC mode, cooling and cooling OFF mode for indoor unit, and displays “AH”...
  • Page 73 DC Inverter Multi VRF System II Service Manual Display Display Display Content Content Content code code code compressor Malfunction of Wrong code-dialing Setting for indoor unit and pipeline for outdoor during emergency oudoor unit is succeeded unit operation Communication malfunction Driven communication Refrigerant-charging for indoor unit, outdoor unit...

  • Page 74: Troubleshooting

    DC Inverter Multi VRF System II Service Manual 3 Troubleshooting Troubleshooting principle 1. Communication malfunction Communicatio n malfunction Check whether indoor unit and Energize indoor unit outdoor unit is power supplied and outdoor unit 是 Check whether the Connect the communication communication wire between wire for indoor unit and indoor unit and outdoor unit is...
  • Page 75 DC Inverter Multi VRF System II Service Manual 3. Low-pressure protection Low pressure protection Measure Measure whether the whether the Replace main board low pressure is too pressure switch of outdoor unit low with manometer is normal Replace pressure switch Check whether the Charge refrigerant according to the volume on nameplate;...
  • Page 76 DC Inverter Multi VRF System II Service Manual Discharge temperature protection Check whether the Measure whether discharge temperature for the resistance valve Replace main board of compressor is reached to for temperature outdoor unit sensor is normal 113℃ Replace discharge temperature sensor Check whether the Charge refrigerant according to the volume on nameplate;...
  • Page 77 DC Inverter Multi VRF System II Service Manual Malfunction of sensor Confirm whether the Check whether plug of sensor is plug is connected connected with socket correctly correctly Measure whether the output value Replace pressure (DC voltage) for socket of main board sensor of outdoor unit is normal Replace main board of...
  • Page 78 DC Inverter Multi VRF System II Service Manual 10. Drive IPM overtemperature protection for compressor Wired controller displays P0 LED3 dual-8 nixie tube displays P8 Whether two IPM module is tightened? Replace main Tighten module board Work normally 11. Desynchronizing protection for inverter compressor Wired controller displays P0...
  • Page 79 DC Inverter Multi VRF System II Service Manual Wired controller displays P0 LED3 dual-8 nixie tube displays PJ Replace main board. Work normally? Replace compressor Work normally 13. Loop malfunction of driven charging for compressor Wired controller displays P0 LED3 dual-8 nixie tube displays PF Check whether the...
  • Page 80 DC Inverter Multi VRF System II Service Manual Wire controller displays P0 LED3 dual-8 nixie tube displays PA Whether the memory Adjust the chip is inserted memory chip inversely Insert the Whether the memory chip memory chip is loose？ tightly Replace main board Work normally...
  • Page 81 DC Inverter Multi VRF System II Service Manual Wired controller displays P2 LED3 nixie tube displays PH or PL Whether the power voltage is 185V~264V？ Replace main board. Work normally? Close Upon power off Replace Work normally and ask authorized compressor personnel 17.

  • Page 82: Power Distribution Of Unit

    DC Inverter Multi VRF System II Service Manual 4 Power Distribution of Unit 4.1 Power distribution of unit The control logical relationship among parts inside the electric box of unit is showed by the mongline diagram (CAD source file). The main loop is showed by bold line (line width: 1mm); the control loop is showed by slim line (line width: 0.2mm).

  • Page 83: Main Electric Parts

    DC Inverter Multi VRF System II Service Manual 4.2 Main electric parts Name Photo Function introduction It main effect is to eliminate the interference of power for protecting unit’s anti-interference capability and Filter plate prevent the interference to other electric appliances.
  • Page 84 DC Inverter Multi VRF System II Service Manual...

  • Page 85: Removal Of Parts

    DC Inverter Multi VRF System II Service Manual 5 Removal of Parts 5.1 Key parts Photo Name Function Core part of air conditioning system. It sucks low temperature and low pressure compressor gas, compress it to high temperature and high pressure gas, and then discharge it.
  • Page 86 DC Inverter Multi VRF System II Service Manual Photo Name Function It stays between outlet of evaporator and suction ouitlet Vapour liquid of compressor. It used for separator separating low temperature and low pressure refrigerant. It used for storing the High pressure liquid superfluous high pressure storage tank...

  • Page 87: Removal Of Key Parts

    DC Inverter Multi VRF System II Service Manual 5.2 Removal of key parts 5.2.1 GMV-120WL/A-T, GMV-140WL/A-T, GMV-160WL/A-T ， GMV-120WL/A-X, GMV-140WL/A-X,GMV-160WL/A-X series unit Removal operation for panel Remark: Before removing the panel, please make sure that the unit is disconected with the power...
  • Page 88 DC Inverter Multi VRF System II Service Manual Removal operation for panel Remark: Before removing the panel, please make sure that the unit is disconected with the power Process Photo Operation Instruction ● Loose screws fixing left 4. Remove left side plate and rear side plate side plate and with screwdriver...
  • Page 89 DC Inverter Multi VRF System II Service Manual Removal operation for blade Remark: Before removing the motor, please make sure that the unit is disconnected with the power. Operation Process Photo Instruction ● Loose screws fixing the motor with screwdriver ●...
  • Page 90 DC Inverter Multi VRF System II Service Manual Removal operation of compressor Remark: Before removing the compressor, please make sure that there’s no refrigerant inside the pipeline and the power is disconnected. Operation Process Photo Instruction ● Loose screws fiixng the compressor with screwdriver ●...
  • Page 91 DC Inverter Multi VRF System II Service Manual Removal operation of compressor Remark: Before removing the compressor, please make sure that there’s no refrigerant inside the pipeline and the power is disconnected. Operation Process Photo Instruction ● Take out the compressor and replace it 4.
  • Page 92 DC Inverter Multi VRF System II Service Manual Removal operation of compressor Remark: Before removing the compressor, please make sure that there’s no refrigerant inside the pipeline and the power is disconnected. Operation Process Photo Instruction ● Loose screws fixing the power cord with screwdriver ●...
  • Page 93 DC Inverter Multi VRF System II Service Manual Removal operation for 4-way valve Remark: Before removing the 4-way valve, please make sure that there’s no refrigerant inside the pipeline of system and then power is disconnected. Operation Process Photo Instruction ●...
  • Page 94 DC Inverter Multi VRF System II Service Manual Remival operation for eletronic expansion valve Remark: Before removing the electronic expansion valve, please make sure that there’s no refrigerant in th pipeline of system and the power is disconnected Operation Process Photo Instruction ●...
  • Page 95 DC Inverter Multi VRF System II Service Manual Removal operation of gas liquid separator Remark: Before removing the gas liquid separator, please make sure that there’s no refrigerant inside the pipeline of system and disconnect the power Operation Process Photo Instruction ●...
  • Page 96 DC Inverter Multi VRF System II Service Manual Removal operation for plate heat exchanger Remark: Before removing the plate heat exchanger, please make sure that there’s no refrigerant inside the pipeline of system and disconnect the power Operation Process Photo Instruction ●Twist off two nuts 1.

  • Page 97: Common Maintenance

    DC Inverter Multi VRF System II Service Manual Removal operation for plate heat exchanger Remark: Before removing the plate heat exchanger, please make sure that there’s no refrigerant inside the pipeline of system and disconnect the power Operation Process Photo Instruction ●...

  • Page 98: Fill And Charge Refrigerant

    DC Inverter Multi VRF System II Service Manual b．When turn off the vacuum pump to stop vacuum-pumping, please turn off the valve at first and then de-energize the vacuum pump; c． Keep the vacuum pump for 2h and confirm that the pressure of vacuum meter hasn’t been increased. 6.2 Fill and charge refrigerant 6.2.1 Filling procedure of regrigerant a．...
  • Page 99 DC Inverter Multi VRF System II Service Manual Model Indoor unit① Cassette type GMV-R71T/Na Indoor unit② Wall-mounted type GMV-R36G/Na Indoor unit③ Super-slim duct type GMV-R50P/NaL Indoor unit④ Duct type GMV-R25P/Na Liquid pipe： φ9.52 φ9.52 φ9.52 φ6.35 Diameter of pipe Length φ9.52 φ6.35 φ6.35...

  • Page 100: Airtightness Test

    DC Inverter Multi VRF System II Service Manual it may cuase personal injury or property damage due to explosion. 6.3 Airtightness test 6.3.1 Importance of airtightness test The airtightness of VRF system is the leak tightness of the pipeline for refrigerant, which the guarantee for safe and reliable operation.

  • Page 101: Exploded View Of Unit And Parts' List

    DC Inverter Multi VRF System II Service Manual 7 Exploded View of Unit and Parts’ List 7.1 Exploed view for outdoor unit and parts’ list 1) Model: GMV-120WL/A-T、GMV-140WL/A-T、GMV-160WL/A-T Exploded view Parts list GMV-120WL/A-T,GMV-140WL/A-T,GMV-160WL/A-T Name of Part Product Code CN850W0180 /CN850W0170/CN850W0160...
  • Page 102 DC Inverter Multi VRF System II Service Manual GMV-120WL/A-T,GMV-140WL/A-T,GMV-160WL/A-T Name of Part Product Code CN850W0180 /CN850W0170/CN850W0160 Part Code Quantity Clapboard Sub-Assy 01244100006 Fan Motor 15704115 Sensor Sub-Assy 39008000061G Fan Motor 1570411501 Front Grill 26904100026 Cabinet 01514100002P Front Side Plate 01314100012P...
  • Page 103 DC Inverter Multi VRF System II Service Manual GMV-120WL/A-T,GMV-140WL/A-T,GMV-160WL/A-T Name of Part Product Code CN850W0180 /CN850W0170/CN850W0160 Part Code Quantity Magnet Coil 4304000406 Plate-type Heat Exchanger Assy 00904100013 Discharge Charge Valve 07133771 Electronic Expansion Valve 07334447 Electric Expand Valve Fitting 4304413205...
  • Page 104 DC Inverter Multi VRF System II Service Manual 2) Model: GMV-120WL/A-X、GMV-140WL/A-X、GMV-160WL/A-X Exploded view 9 10 11 12 13 14 GMV-120WL/A-X、GMV-140WL/A-X、 GMV-160WL/A-X CN850W0260 / Name of Part Product Code CN850W0250 / CN850W0240 Part Code Quantity Front Grill 26904100026 Cabinet 01514100005 Front Side Plate 01314100012P Handle 26235253...
  • Page 105 DC Inverter Multi VRF System II Service Manual GMV-120WL/A-X、GMV-140WL/A-X、 GMV-160WL/A-X CN850W0260 / Name of Part Product Code CN850W0250 / CN850W0240 Part Code Quantity Right Connection Board 01344100003P Current Divider 04414153 Strainer 07212121 Silencer 07245012 Condenser Sub-Assy 01154100008 Atmolysis Pipe Sub-Assy 04534100062 Cut off Valve 07330000001...
  • Page 106 JF00302323...

This manual is also suitable for:

Gmv-140wl/a-tGmv-120wl/a-tGmv-120wl/a-xGmv-160wl/a-xGmv-140wl/a-x

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