GREE ELECTRIC GMV-120WL/A-T Service Manual
  1. Manuals
  2. Brands
  3. GREE ELECTRIC Manuals
  4. Air Conditioner
  5. GMV-120WL/A-T
  6. Service manual

GREE ELECTRIC GMV-120WL/A-T Service Manual

Dc inverter vrf system ii
Hide thumbs
Table of Contents

Advertisement

Quick Links

DC INVERTER VRF SYSTEM II
SERVICE
MANUAL(R410A)

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the GMV-120WL/A-T and is the answer not in the manual?

Questions and answers

Related Manuals for GREE ELECTRIC GMV-120WL/A-T

Summary of Contents for GREE ELECTRIC GMV-120WL/A-T

  • Page 1 DC INVERTER VRF SYSTEM II SERVICE MANUAL(R410A)

  • Page 2: Table Of Contents

    CONTENTS PRODUCT ............................1 1 PRODUCT LIST ............................1 2 NOMENCLATURE ............................1 2.1 Nomenclature of outdoor units ......................1 3 PRODUCT FEATURES ..........................2 3.1 General introduction .......................... 2 3.2 Features .............................. 2 4 SPECIFICATIONS ............................3 4.1 Specifications ............................. 3 4.2 Operation range ..........................

  • Page 3: Table Of Contents

    5.2 Removal of key parts ........................81 6 COMMON MAINTENANCE ........................92 6.1 Vacuum drying for the system ......................92 6.2 Fill and charge refrigerant ....................... 92 6.3 Airtightness test ..........................95 7 EXPLODED VIEW OF UNIT AND PARTS’ LIST ..................96 7.1 Exploed view for outdoor unit and parts’...
  • Page 4 DC INVERTER VRF SYSTEM II SERVICE MANUAL(R410A) PRODUCT...

  • Page 5: Product

    DC Inverter Multi VRF System II Service Manual PRODUCT 1 Product List Cooling Heating Capacity Capacity Model Product Code Power Supply Refrigerant Appearance GMV-120WL/A-T CN850W0180 12.1 220-240V 50Hz R410A GMV-140WL/A-T CN850W0170 16.5 208-230V 60Hz GMV-160WL/A-T CN850W0160 18.5 GMV-120WL/A-X CN850W0260 12.1...

  • Page 6: Product Features

    DC Inverter Multi VRF System II Service Manual DC Inverter —omit Unit type Q—Heat Recovery; S—Water Heater; W—Water-cooled Unit; X—Fresh Air Function code Unit Leave blank if above functions are unavailable. H – Only for GMV-H224WL/A-X, GMV-H280WL/A-X, GMV-H335WL/A-X Code Code of cooling capacity Nominal capacity/100(W) Code of outdoor unit M—Modular (top discharge);...

  • Page 7: Specifications

    DC Inverter Multi VRF System II Service Manual 4 Specifications 4.1 Specifications GMV-120 GMV-140 GMV-160 GMV-120 GMV-140 GMV-160 GMV-H224 GMV-H280 GMV-H335 Model WL/A-T WL/A-T WL/A-T WL/A-X WL/A-X WL/A-X WL/A-X WL/A-X WL/A-X Cooling 12.1 12.1 22.4 33.5 capacity Heating 16.5 18.5 16.5 18.5 capacity...

  • 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: Principal Of Operation

    DC Inverter Multi VRF System II Service Manual  Below table shows the capacity variance ratio for 100% full load in standard working condition (thermostat setting is 16℃ for cooling and 30℃ for heating). 6 Principal of Operation Components in flowcharts are presented according to the following table: Name Compressor 4-way valve...
  • Page 10 DC Inverter Multi VRF System II Service Manual In cooling, the low-temperature and low-pressure refrigerant gas from each indoor heat exchanger will be merged and inhaled by the compressor and then become high-temperature and high-pressure gas, which will later be discharged into outdoor heat exchangers. By exchanging heat with outdoor air, refrigerant will turn to liquid and flow to each indoor unit via Y-type branch or manifold.
  • Page 11 DC Inverter Multi VRF System II Service Manual CONTROL...

  • Page 12: Control

    DC Inverter Multi VRF System II Service Manual CONTROL 1 Units’ Control 1.1 Schematic diagram of units’ control 1.2 Interpretation on the schematic diagram ◆ High pressure switch is used to identify system’s high and low pressure. When pressure is too high, the switch will break off and send a signal to main board.

  • Page 13: Monitoring Software

    DC Inverter Multi VRF System II Service Manual 3 Monitoring Software 3.1 Function introduction With the rapid development of building complex, more and more central air conditioners in various models are used in different places, resulting in inconvenience for the management of air conditioners. Integrating with telecommunication technology and computing software, Gree Commissioning Tool Kits can realize the comprehensive monitor, control and commissioning on central air conditioners.

  • Page 14: Parts Introduction

    DC Inverter Multi VRF System II Service Manual kits. In a single-system network, both indoor units and outdoor units can be connected, while in a multi-system network, only the master outdoor unit can be connected. 3.3 Parts introduction 3.3.1 List of parts Name Model Material no.
  • Page 15 DC Inverter Multi VRF System II Service Manual 3.3.2.3 Operation instruction  Power LED: a red light. If the red light is on, it indicates normal power supply. If the red light is off, it indicates the power supply of converter is not normal. ...
  • Page 16 DC Inverter Multi VRF System II Service Manual available for Gree debugger and the monitoring software).  RS485 interface: When RS485 converter is under RS485 communication mode, connect air conditioner’s RS485 data interface. RS485 interface exhibits polarity and terminal A and B are different.

  • Page 17: Software Introduction

    DC Inverter Multi VRF System II Service Manual 3.4 Software introduction （1）One-button commissioning Personnel responsible for the commissioning of air conditioners can start commissioning by pressing one button according to the commissioning logic of software, which will give the commissioning order to units. Then commissioning will be started up automatically step by step. During the commissioning, the corresponding process will be ticked in green on the software interface.
  • Page 18 DC Inverter Multi VRF System II Service Manual Windows Server 2003 SP3 or higher Windows XP SP3 or higher Operation System Windows Vista Windows 7 (2) CD Playing Make sure you have administrator access to the computer and there is a CD-ROM in the computer. Put the CD into the CD-ROM.
  • Page 19 DC Inverter Multi VRF System II Service Manual 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. Otherwise, click “Install .Net Framework 4.0”. ...
  • Page 20 DC Inverter Multi VRF System II Service Manual  Click and select “I have read and accept the license terms”. Then click “Install”.  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”.
  • Page 22 DC Inverter Multi VRF System II Service Manual  Click ”Next”. Tick “I accept the terms in the License Agreement” and then click “Next” ...
  • Page 23 DC Inverter Multi VRF System II Service Manual  Click “Browse” to change the default folder to the expected one, or click “Install” to continue the installation.  Installation is in progress.
  • Page 24 DC Inverter Multi VRF System II Service Manual  Click “Ok” to complete the 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”. ...
  • 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. (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”.
  • Page 27 DC Inverter Multi VRF System II Service Manual  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. Click “Install Gree USB Data Converter”.
  • Page 29 DC Inverter Multi VRF System II Service Manual  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 applicable to the units.
  • Page 36 DC Inverter Multi VRF System II Service Manual  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  On the display zone of devices information, you may click to select and view units that need 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.
  • Page 39 DC Inverter Multi VRF System II Service Manual  Click “Start” to enable the debugging function. Then debugging will be started up automatically. 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.
  • 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 3.4.4 Control units  Click icon of “Setting” on menu bar and select parameter settings, which include “Gateway Settings”, “IDU Settings”, “System Settings”, “Project Number Conflict (In case there is project number conflict in indoor units, other functions will be shielded.
  • 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: Other Functions

    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. Conversion of pressure value  Click icon of “Others” on the menu bar and then click “Display Settings” to select “High Low Pressure Value”...
  • Page 45 DC Inverter Multi VRF System II Service Manual displayed on the interface will be temperature. Select “Pressure” and the pressure parameter displayed on the pressure interface will be pressure. Refrigerant type will affect the pressure parameter displayed on the interface. Database saving of multiple systems ...
  • Page 46 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 47 DC Inverter Multi VRF System II Service Manual 3.4.6 Usage of USB Converter 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 48 DC Inverter Multi VRF System II Service Manual  Gree monitoring software should be connected with RS485 interface when converter is used. Connect outdoor or indoor units or the mainboard of wired controller according to actual needs.  HBS, CAN and RS485 of the converter can be switched by buttons. Press the button “SET” on the converter to realize the conversion among HBS, CAN and RS485 interfaces.
  • Page 49 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 50 DC Inverter Multi VRF System II Service Manual Step 5: Then click ”Port Settings” in the dialog box.
  • Page 51 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 52 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 53 DC Inverter Multi VRF System II Service Manual Baud rate look-up table for HBS interface (unit: bps) 9600 19200 57600 HBS interface 38400 9600 19200 USB interface 4800 38400 Baud rate look-up table of CAN interface (unit: bps) 20000 50000 100000 125000 CAN interface...
  • Page 54 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 55 DC Inverter Multi VRF System II Service Manual  Click “Get” to get the current setting details of converter.  Switchover of Software Languages...
  • Page 56 DC Inverter Multi VRF System II Service Manual Installation...

  • Page 57: 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 58: Installation Materials Selection

    DC Inverter Multi VRF System II Service Manual The ratio of slop for condensate water pipe is insufficient or the Reverse slop or inconsistent connection of condensate water pipe can hinder the condensate water pipe is smooth drainage and cause leakage of the IDU. incorrectly connected.

  • Page 59: Condensate Water Pipe

    DC Inverter Multi VRF System II Service Manual e. Specifications requirement R410A Refrigerant System OD (mm/inch) Wall Thickness (mm) Model Ф6.35(1/4) ≥0.8 Ф9.52(3/8) ≥0.8 Ф12.70(1/2) ≥0.8 Ф15.9(5/8) ≥1.0 Ф19.05(3/4) ≥1.0 Ф22.20(7/8) ≥1.2 Ф25.40(8/8) ≥1.2 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 60: Power Cable

    DC Inverter Multi VRF System II Service Manual 2.5 Power cable Only copper conductors can be used as power cables. The copper conductors must meet relevant national standard and satisfy the carrying capacity of unit. 2.6 Hanger rod and support a.

  • Page 61: Fixing And Damping Of Unit

    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\GMV-120WL/A-X 1345 GMV-140WL/A-X\GMV-160WL/A-X...
  • Page 62 DC Inverter Multi VRF System II Service Manual DEBUGGING &MAINTENANCE...

  • Page 63: Debugging &Maintenance

    DC INVERTER VRF SYSTEM II SERVICE MANUAL(R410A) 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. The debugging must be performed by professional person or under the the guide of professional person.
  • Page 64 DC Inverter Multi VRF System II Service Manual Stage process instruction for debugging Debugging —— Process code Status code code LED1 LED2 LED3 Code instruction and operation method Displ Process Display Display Code Code status status status Cofirmation process of system. 1s later, it Flash 03_Quantity will enter into the next step automatically.
  • Page 65 DC Inverter Multi VRF System II Service Manual Stage process instruction for debugging Debugging —— Process code Status code code LED1 LED2 LED3 Code instruction and operation method Displ Process Display Display Code Code status status status troubleshooting process, perform the debugging again from step 01 after energization.
  • Page 66 DC Inverter Multi VRF System II Service Manual Stage process instruction for debugging Debugging —— Process code Status code code LED1 LED2 LED3 Code instruction and operation method Displ Process Display Display Code Code status status status for outdoor about 2min, it will stop operation. It will unit’s valve judge the ON status of gas valve and before startup...

  • Page 67: Parameters Reference Value For The Normal Operation Of Unit

    DC Inverter Multi VRF System II Service Manual 1.3 Parameters reference value for the normal operation of unit Parameters Debugging project Unit Reference value name Outdoor —— ℃ ambient temperature ●After compressor is started up, normal discharge temperature for cooling is 70~105℃, which is 10℃ above more than the Discharge high pressure saturation temperature.

  • Page 68: Malfunction List

    DC Inverter Multi VRF System II Service Manual Parameters Debugging project Unit Reference value name of indoor expansion valve is adjusted among 70~480PLS. electrocnic Under heating mode, the opening angle for indoor unit is expansion adjusted among 40~480PLS. valve Through debugging software, it detected that the quantity of Communication Communication —...
  • Page 69 DC Inverter Multi VRF System II Service Manual Display Display Display Content Content Content code code code Loose protection for Low pressure Discharge high temperature discharge temperature protection protection for compressor sensor for compressor 1 Poor main board of Malfunction of high Malfunction of low outdoor unit pressure sensor...

  • Page 70: Troubleshooting

    DC Inverter Multi VRF System II Service Manual Display Display Display Content Content Content code code code module control unit Malfunction of main control Low rated capacity Address shock of syste unit Communication malfunction Distribution overflow of Ip between indoor unit Debugging for unit address receiving lamp...
  • Page 71 DC Inverter Multi VRF System II Service Manual 2) High pressure protection High pressure protection Measure whether Replace main Measure whether the high pressure the pressure board of outdoor is too high with manometer switch is normal unit Replace pressure switch Charge refrigerant according to the volume on Check whether the refrigerant- nameplate;...
  • Page 72 DC Inverter Multi VRF System II Service Manual 3) Low-pressure protection Low pressure protection Measure Replace main whether the Measure whether the low pressure board of outdoor is too low with manometer pressure switch unit is normal Replace pressure switch Charge refrigerant according to the volume Check whether the refrigerant- on nameplate;...
  • Page 73 DC Inverter Multi VRF System II Service Manual 4) Discharge temperature protection Discharge temperature protection Measure whether the resistance valve for Replace main board of Check whether the discharge temperature for compressor is temperature sensor is outdoor unit reached to 113℃ normal Replace discharge temperature sensor...
  • Page 74 DC Inverter Multi VRF System II Service Manual 5) Mafunction of temperature sensor Malfunction of temperature sensor Conform whether the Whether the plug of temperature is plug is connected connected with the plug of main board correctly correctly Replace temperature Measure whether resistance value of temperature sensor is in the normal range sensor...
  • Page 75 DC Inverter Multi VRF System II Service Manual 8) Failure start-up Failure start-up for consecutive 6 times Work normally after replacing main board? Replace compressor and Work normally liquid gas separator 9) Reset protection for drive module of compressor, drive PFC protection for compressor, malfunction of drive temperature sensor for compressor, circuit malfunction of drive current detection for compressor Wired controller...
  • Page 76 DC Inverter Multi VRF System II Service Manual 11) Desynchronizing protection for inverter compressor Wired controller displays P0 LED3 dual-8 nixie tube displays P9 Whether the Adjust the sequence of wire sequence of wire for compressor is for compressor correct? Connect the wires Whether the wiring terminal...
  • Page 77 DC Inverter Multi VRF System II Service Manual 13) Loop malfunction of driven charging for compressor Wired controller displays P0 LED3 dual-8 nixie tube displays PF Check whether the wires for PFC induction is correct/ Replace main Reinsert the board wires for PFC Work normally 14) Malfunction of memory chip for inverter compressor...
  • Page 78 DC Inverter Multi VRF System II Service Manual 15) Overcurrent protection for inverter compressor, IPM module protection, phase-lacking of inverter compressor Wired controller displays P1 LED3 dual-8 nixie tube displays P5、P6 or PE Whether the sequence of wire Adjust the sequence of for compressor is wire for compressor correct?
  • Page 79 DC Inverter Multi VRF System II Service Manual 17) AC current protection for inverter compressor 18) Communication malfunction between main contoller and driver of inverter compressor Wired controlled displays C2 LED3 dual-8 nixie tube displays C2 Check whether the main control CPU board is inserted well? Replace main...

  • Page 80: 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 81: Circuit Diagram

    DC Inverter Multi VRF System II Service Manual 4.3 Circuit diagram Circuit diagram of outdoor unit GMV-120WL/A-T, GMV-140WL/A-T, GMV-160WL/A-T GMV-120WL/A-X, GMV-140WL/A-X, GMV-160WL/A-X...
  • Page 82 DC Inverter Multi VRF System II Service Manual GMV-H224WL/A-X GMV-H280WL/A-X, GMV-H335WL/A-X...

  • Page 83: 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 Electronic Throttling device.
  • Page 84 DC Inverter Multi VRF System II Service Manual Photo Name Function Vapour liquid It stays between outlet of evaporator and suction ouitlet of compressor. It used separator for separating low temperature and low pressure refrigerant. High pressure It used for storing the superfluous high pressure refrigerant liquid during cooling liquid storage process.

  • Page 85: 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, GMV-H224WL/A-X, GMV-H280WL/A-X, GMV-H335WL/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 86 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 side 4)Remove left plate and rear side plate with side plate and screwdriver...
  • Page 87 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. Process Photo Operation Instruction ● Loosen nuts fixing the blade with wrench 2) Remove ●...
  • Page 88 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. Process Photo Operation Instruction ● Assemble the unit in 5) Assemble unit the the converse sequence Removal operation of compressor...
  • Page 89 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. Process Photo Operation Instruction 3) Loose nuts Twist off the nuts for fixing the foot of compressor with compressor...
  • 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. Process Photo Operation Instruction Weld the connection pipe of compressor, 6) Connect suction connect the pipeline pipe and discharge...
  • Page 91 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. Process Photo Operation Instruction 1)Disconnect ●Remove the coil of the coil of 4-way...
  • Page 92 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. Process Photo Operation Instruction ●...
  • Page 93 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 Process Photo Operation Instruction ●...
  • Page 94 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 Process Photo Operation Instruction ●...
  • Page 95 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 Process Photo Operation Instruction ●...

  • Page 96: Common Maintenance

    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 GMV-120WL/A-T 、GMV-140WL/A-T、 GMV-160WL/A-T、 a． Calculate the additional volume of refrigerant (...
  • Page 97 DC Inverter Multi VRF System II Service Manual GMV-120WL/A-X 、GMV-140WL/A-X、 GMV-160WL/A-X) (1) Refrigerant quantity of outdoor unit before delivery: GMV-120WL/A GMV-140WL/A GMV-160WL/A GMV-120WL/A GMV-140WL/A GMV-160WL/A Model Refrigera nt Qty (kg) Note: ①The refrigerant amount charged before delivery doesn’t include the amount that needs to be added to indoor units and the connection pipeline.
  • Page 98 DC Inverter Multi VRF System II Service Manual Liquid pipe: Ф9.52 Ф9.52 Ф9.52 Ф6.35 Pipe size Length Ф9.52 Ф6.35 Ф6.35 Ф6.35 Pipe size Length Total length of each liquid pipe Ф 9.52：A+B+C+a=10+5+5+3=23m Ф 6.35: D+b+c+d=5+3+2+1=11m Note: Liquid pipe that is within 20m doesn’t need to be added with refrigerant. Therefore, the minimum quantity of additional refrigerant = (23-20)×0.054+11×0.022＝0.404kg b．...

  • Page 99: Airtightness Test

    DC Inverter Multi VRF System II Service Manual Liquid pipe: Ф9.52 Ф9.52 Ф9.52 Ф6.35 Pipe size Length Ф9.52 Ф6.35 Ф6.35 Ф6.35 Pipe size Length Total length of each liquid pipe Ф9.52：A+B+C+a=10+5+5+3=23m Ф6.35: D+b+c+d=5+3+2+1=11m The minimum quantity of additional refrigerant = 23×0.054+11×0.022＝1.484kg 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...

  • Page 100: 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...
  • Page 101 DC Inverter Multi VRF System II Service Manual Parts list GMV-120WL/A-T,GMV-140WL/A-T,GMV-160WL/A-T Name of Part Product Code CN850W0180 /CN850W0170/CN850W0160 Part Code Quantity Coping 01264100008P Inductance Assy 01394100050 Inductance 43120122 Electric Box Assy 01394100124 Main Board 30228000005 Radiator 49018000013 Filter Board 30228000006...
  • 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 Electromagnetic Valve 43000054 Magnet Coil 4304000417 Right Connection Board 01344100003P Rear Side Plate Sub-Assy 01314100011P Sensing Device 322101001 Sensor (High Pressure)
  • Page 103 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 Parts list GMV-120WL/A-X、GMV-140WL/A-X、GMV-160WL/A-X Name of Part Product Code CN850W0260 / CN850W0250 / CN850W0240 Part Code Quantity Front Grill 26904100026 Cabinet 01514100005 Front Side Plate 01314100012P Handle...
  • Page 104 DC Inverter Multi VRF System II Service Manual GMV-120WL/A-X、GMV-140WL/A-X、GMV-160WL/A-X Name of Part Product Code CN850W0260 / CN850W0250 / CN850W0240 Part Code Quantity Gas-liquid Separator 07424100014 Plate-type Heat Exchanger Assy 00904100013 Supporter 01804100312 Rear Side Plate Sub-Assy 01314100011P Right Connection Board 01344100003P Current Divider 04414153...
  • Page 105 DC Inverter Multi VRF System II Service Manual 3) Model: GMV-H224WL/A-X Exploded view Parts list GMV-H224WL/A-X Name of Part Product Code CN850W0330 Part Code Quantity Coping 01264100047P Electric Box Assy 01394100349 49018000083 Radiator 46010604 Rectifier 4313017401 Reactor 30223000045 Main Board 32218018 Phase Reverse Protector 30228000015...
  • Page 106 DC Inverter Multi VRF System II Service Manual GMV-H224WL/A-X Name of Part Product Code CN850W0330 Part Code Quantity Diversion Circle 10474100003 Cabinet Assy 01514100015 Handle 26235253 Front Side Plate 01314100082P Nozzle for Adding Freon 06120012 Gas-liquid Separator 07424140 Pressure Protect Switch 4602000902 Cut off Valve 07334100011...
  • Page 107 DC Inverter Multi VRF System II Service Manual 4) Model: GMV-H280WL/A-X Exploded view Parts list GMV-H280WL/A-X Name of Part Product Code CN850W0340 Part Code Quantity Coping 01264100052P Electric Box Assy 01394100496 Radiator 49018000083 Reactor 4313017401 Main Board 30223000072 Rectifier 46010604 Phase Reverse Protector 32214101 Filter Board...
  • Page 108 DC Inverter Multi VRF System II Service Manual GMV-H280WL/A-X Name of Part Product Code CN850W0340 Part Code Quantity Front Grill 01574100008 Diversion Circle 10474100003 Handle 26235253 Chassis Assy 01194100112 Oil Separator 07424100050 Cut off Valve 07130208 Cut off Valve 07334100011 Compressor Gasket 76715019 Cut off Valve...
  • Page 109 DC Inverter Multi VRF System II Service Manual 5) Model: GMV-H335WL/A-X Exploded view Parts list GMV-H335WL/A-X Name of Part Product Code CN850W0350 Part Code Quantity Coping 01264100052P Electric Box Assy 01394100496 Radiator 49018000083 Reactor 4313017401 Rectifier 46010604 Main Board 30223000072 Phase Reverse Protector 32214101 Filter Board...
  • Page 110 DC Inverter Multi VRF System II Service Manual GMV-H335WL/A-X Name of Part Product Code CN850W0350 Part Code Quantity Front Side Plate 01314100091P Sensor Sub-assy 39008000121G Chassis Sub-assy 01194100081P Oil Separator 07424100050 Low Pressure Survey Valve Sub-assy 07334100065 Strainer 07414100024 Cut off Valve 07130208 Compressor and Fittings 00204100015...
  • Page 111 JF00302323...

This manual is also suitable for:

Gmv-140wl/a-tGmv-140wl/a-xGmv-160wl/a-xGmv-160wl/a-tGmv-h224wl/a-xGmv-h280wl/a-x ... Show all

Table of Contents

Save PDF