Gree GMV-60WL/C-T Owner's Manual
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Gree GMV-60WL/C-T Owner's Manual

Gree GMV-60WL/C-T Owner's Manual

Dc inverter multi vrf system
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Owner's Manual
Original Instructions
Commercial Air Conditioners
DC Inverter Multi VRF System
Applicable Models:
GMV-60WL/C-T(U)
GMV-48WL/C-T(U)
GMV-36WL/C-T(U)

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Summary of Contents for Gree GMV-60WL/C-T

  • Page 1 Owner's Manual Original Instructions Commercial Air Conditioners DC Inverter Multi VRF System Applicable Models: GMV-60WL/C-T(U) GMV-48WL/C-T(U) GMV-36WL/C-T(U)
  • Page 2 Preface For correct installation and operation, please read all instructions carefully. Before reading the instructions, please be aware of the following items: Instructions for installation and use of this product are provided by the manufacturer. Installation must be performed in accordance with the requirements of NEC and CEC by authorized personnel only.

  • Page 3: Table Of Contents

    Contents 1 Safety Notices (Please be sure to abide them) ............1 2 Product Introduction ....................2 2.1 Names of Main Parts ......................2 2.2 Combinations of Indoor and Outdoor Units ............... 3 2.3 Operating Range ......................3 3 Preparation before Installation ................. 3 3.1 Standard Parts ........................

  • Page 4: Safety Notices (Please Be Sure To Abide Them)

    DC Inverter Multi VRF System 1 Safety Notices (Please be sure to abide them) If not abide them strictly, it may cause severe damage to the unit or the people. If not abide them strictly, it may cause slight or medium damage to the unit or the people.

  • Page 5: Product Introduction

    (26) If there are any abnormal circumstances (such as burning smell, etc.), please turn off the unit and cut off the main power supply immediately, and then contact Gree appointed service center. If those abnormal circumstances still exit, the unit may be damaged and it may lead to electric shock or fire hazard.

  • Page 6: Combinations Of Indoor And Outdoor Units

    DC Inverter Multi VRF System GMV-60WL/C-T(U) Fig.2.1 ① ② ③ ④ ⑤ Name Motor Fan blade Electric box assembly Gas pipe valve Liquid pipe valve 2.2 Combinations of Indoor and Outdoor Units (1) See below the number of indoor units that can be connected to the outdoor unit.

  • Page 7: Installation Site

    Name Appearance Remark GMV-36WL/C-T(U) Corrugated pipe GMV-48WL/C-T(U) This part is included in the Liquid side following models: connection pipe GMV-60WL/C-T(U) This part is included in the Gas side following models: connection pipe GMV-60WL/C-T(U) Chassis gluey plug — Drainage joint —...

  • Page 8: Piping Work Requirements

    DC Inverter Multi VRF System If the ODU is totally surrounded by walls, please refer to Fig.3.1 for space dimension: Fig.3.1 3.3 Piping Work Requirements Refer to the table below for piping work requirements: R410A Refrigerant System Outer diameter (mm/inch) Wall thickness (mm/inch) Φ6.35(Φ1/4) ≥0.8(1/32)

  • Page 9: Connection Pipe

    DC Inverter Multi VRF System Unit: mm(inch) Model GMV-36WL/C-T(U) 1345 GMV-48WL/C-T(U) (35-3/8) (13-3/8) (53) (22-1/2) (15) 1430 GMV-60WL/C-T(U) (37) (12-9/16) (56-1/4) (24-7/8) (14-7/8) 4.2 Connection Pipe 4.2.1 Schematic Diagram of Piping Connection Fig.4.2...
  • Page 10 Y type branch joint is adopted to connect indoor and outdoor units. Connecting method is shown in Fig.4.3 below. Equivalent length of one Y-type branch is 0.5m(1-5/8feet). Fig.4.3 Allowable Length and Height Difference of Connection Pipe Piping parameters of GMV-36WL/C-T(U), GMV-48WL/C-T(U), GMV-60WL/C-T(U): Allowable value — Fitting pipe...
  • Page 11 Liquid pipe (mm/inch) GMV-36WL/C-T(U) Φ15.9 (Φ5/8) Φ9.52 (Φ3/8) GMV-48WL/C-T(U) Φ15.9 (Φ5/8) Φ9.52 (Φ3/8) GMV-60WL/C-T(U) Φ19.05 (Φ3/4) Φ9.52 (Φ3/8) 4.2.4 Selection of Indoor Branches Select indoor branches according to the total capacity of downstream indoor units. Fig.4.5 Refrigerant system Total capacity of downstream indoor units C (Btu/h) Model C<68200...
  • Page 12 DC Inverter Multi VRF System 4.2.5 Dimension of Pipe between Indoor Branches Select pipe between indoor branches according to the capacity of downstream indoor units; if the capacity exceeds that of the outdoor unit, capacity of outdoor unit prevails. Fig.4.6 Total capacity of downstream indoor units C (Btu/h) Pipe (mm/inch) Liquid pipe (mm/inch)

  • Page 13: Installation Of Connection Pipe

    DC Inverter Multi VRF System Rated capacity of IDU C(Btu/h) Gas pipe (mm/inch) Liquid pipe (mm/inch) 17000<C≤48000 Φ15.9 (Φ5/8) Φ9.52 (Φ3/8) 48000<C≤55000 Φ19.05 (Φ3/4) Φ9.52 (Φ3/8) 55000<C≤96000 Φ22.2 (Φ7/8) Φ9.52 (Φ3/8) If the distance between IDU and its nearest branch is over 10m(33feet), then the liquid pipe of IDU (rated capacity ≤17000Btu/h) shall be enlarged.
  • Page 14 DC Inverter Multi VRF System (4) In case that direct bending will open cracks to the pipe, first use sharp cutter to cut the insulating layer, as shown in Fig.4.10. Do not bend the pipe until it is exposed. When bending is done, wrap the pipe with insulating layer and then secure it with adhesive tape.
  • Page 15 Fig.4.13 (2) Pipe connection for GMV-60WL/C-T(U). As shown in Fig.4.14 and Fig.4.15, open the outermost soundproof cotton and place a fire barrier between compressor and straight pipe. Use a soldering gun to unsolder straight pipe 1 and straight pipe 2.
  • Page 16 DC Inverter Multi VRF System Fig.4.15 4.3.5 Installation of Y-type Branch (1) Y-type Branch. Fig.4.16 (2) Y-type branch has several pipe sections with different dimension, which facilitates to match with various copper pipes. Use pipe cutter to cut in the middle of the pipe section that is of proper dimension and remove burrs as well.

  • Page 17: Disassembly Of Compressor Feet

    DC Inverter Multi VRF System To avoid condensate or water leakage on the connection pipe, the gas pipe and liquid pipe must be wrapped with thermal insulating material and adhesive tape for insulation from the air. Joints of indoor and outdoor unit should be wrapped with insulating material and leave no gap between pipe and wall.

  • Page 18: Vacuum Pumping, Refrigerant Adding

    When installing the unit, metal pieces for transportation must be removed (except for GMV-60WL/C-T(U)). Then fasten the binding nuts again and wrap back soundproofing cotton. If unit runs with metal pieces fitting on, compressor will shake abnormally and unit’s operating life will be shortened.
  • Page 19 DC Inverter Multi VRF System (2) Calculation of the amount of additional refrigerant. Adding refrigerant method includes 2 steps as follow: 1) Amount of additional refrigerant depending on the pipe size(X). 2) Amount of additional refrigerant depending on Quantity of IDU(Y). Total charging amount =X+Y Detail calculation is as follow: 1) X= ∑(Liquid pipe length×amount of additional refrigerant of each 1m)

  • Page 20: Electric Wiring

    DC Inverter Multi VRF System Φ9.52mm Φ6.35 Φ6.35 Φ6.35 Pipe size (Φ3/8inch) (Φ1/4inch) (Φ1/4inch) (Φ1/4inch) Length (9-3/4feet) (9-3/4feet) (6-3/4feet) (3-1/4feet) 1) Amount of additional refrigerant depending on the pipe size(X) Total length of each liquid pipe: Φ9.52: A+B+C+a=10+5+4+3=22m(72-3/16 feet) Φ6.35: D+b+c+d=5+3+3+2+1=11m(36-1/16 feet) 2) Amount of additional refrigerant depending on Quantity of IDU(Y) Quantity of indoor unit: 4 sets.
  • Page 21 DC Inverter Multi VRF System Fig.4.22 Fig.4.23 Fig.4.24 (3) How to fix connection cord and power cord by cord clamp. After passing the connection cord and power cord through the insulation tube, fasten it with the cord clamp (Fig.4.24). Before starting work, check that power is not being supplied to the indoor unit and outdoor unit. Match the terminal block numbers and connection cord colors with those of the indoor unit side.
  • Page 22 GMV-36WL/C-T(U) 208/230V~ 60Hz 28.5 GMV-48WL/C-T(U) 208/230V~ 60Hz GMV-60WL/C-T(U) 208/230V~ 60Hz 34.5 Selection of circuit breaker and power cord in the above table is based upon unit’s maximum power (maximum current). Specification of power cord is based on the working condition where ambient temperature is 40°C(104°F) and multi-core copper cable (working temperature is 90°C(194°F), e.g.
  • Page 23 DC Inverter Multi VRF System Fig.4.26 Fig.4.27...

  • Page 24: Check Items After Installation And Test Operation

    DC Inverter Multi VRF System 5 Check Items after Installation and Test Operation 5.1 Check Items after Installation Check items Possible conditions due to improper installation Check Each part of the unit is installed securely? Unit may drop, shake or emit noise. Gas leakage test is taken or not? Insufficient cooling (heating) capacity.
  • Page 25 DC Inverter Multi VRF System (9) Before test operation, make sure unit is power on and compressor has been preheated for more than 8 hours. Touch the unit to check whether it’s normally preheated. If yes, start test operation. Otherwise, compressor might be damaged. 5.2.2 Test Operation and Debugging Description of test operation procedures and main board display of ODU Description of each stage of debugging progress...
  • Page 26 DC Inverter Multi VRF System Description of each stage of debugging progress — Debugging code Code meaning and operation method Progress Code Display status Outdoor component’s error. Besides “06”, the other blinking will display the related error code. After errors Display 06/error code are eliminated, system will start next step automatically.
  • Page 27 DC Inverter Multi VRF System Description of each stage of debugging progress — Debugging code Code meaning and operation method Progress Code Display status Ready for units to start debugging. Press main board’s Display 12/AP SW3 button to confirm startup of debugging. 2s later, circularly main board will display as below.
  • Page 28 EXV is 60~480PLS. GMV-36WL/C-T(U) Changes in 10Hz~80Hz. Compressor’s GMV-48WL/C-T(U) operating freq Changes in 16Hz~80Hz GMV-60WL/C-T(U) Compressor’s When compressor works normally, the current operating current is no more than 22.6A. When ambient temp is below 35°C(95°F), IPM Compressor’s IPM °C(°F) temp is lower than 80°C(176°F) and the highest...

  • Page 29: Common Malfunctions And Troubleshooting

    If there is abnormal condition (e.g. unpleasant smell), turn unit off and disconnect power immediately. Then contact Gree authorized service center. If unit continues operation despite the abnormal condition, it may get damaged and lead to electric shock or fire hazard.
  • Page 30 Too many heat resources in the room. Reduce heat resources. Filter is blocked and dirty. Clean the filter. If problem cannot be solved after checking the above items, please contact Gree service center and describe the cases and models. Following circumstances are not malfunctions. ...

  • Page 31: Error Indication

    DC Inverter Multi VRF System 7 Error Indication Inquiry method of error indication: combine division symbol and content symbol to check the corresponding error. Indoor: Error Error Content Content Code Code Malfunction of IDU (uniform) Indoor PCB is poor Malfunction of lower water temperature sensor Protection of indoor fan of water tank Auxiliary heating protection...
  • Page 32 DC Inverter Multi VRF System Error Error Content Content Code Code Malfunction of DC motor High pressure ratio protection of system Malfunction of casing top temperature sensor of Low pressure ratio protection of system compressor 1 Malfunction of casing top temperature sensor of Protection because of abnormal pressure compressor 2 Malfunction of exit tube temperature sensor of...
  • Page 33 DC Inverter Multi VRF System Error Error Content Content Code Code Photovoltaic DC hardware overcurrent Phase-lacking of inverter fan protection Drive charging circuit malfunction of fan Grid side hardware overcurrent protection Failure startup of inverter fan High or low photovoltaic voltage protection DC bus neutral-point potential unbalance AC current protection of inverter fan protection...

  • Page 34: Maintenance And Care

    (5) If unit starts up after not operating for a long time, it should be power on 8 hours before operation starts so as to preheat the outdoor compressor. (6) Check whether outdoor unit is securely installed. If there is any problem, please contact Gree authorized service center.

  • Page 35: Maintenance After Seasonal Use

    Otherwise, it may lead to danger. Use nitrogen or refrigerant to conduct the tests. 9 After-sales Service If there’s quality defect or other problems in the product, please contact Gree local after-sales service department for help. Warranty must be based on the following conditions: (1) Product’s initial startup must be performed by professional technicians from Gree service...

This manual is also suitable for:

Gmv-60wl/c-tuGmv-48wl/c-tGmv-48wl/c-tuGmv-36wl/c-tGmv-36wl/c-tu

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