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GREE ELECTRIC GMV-V72W/A-F(U) Owner's Manual

Ultra heat gmv multi vrf r410a systems -outdoor unit
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T hank you for choosing Air Conditioners, please read this owner's manual carefully before operation and
retain it for future reference. If you have lost the Owner's Manual, please contact the local agent or visit
www.gree.com or sent email to global@gree.com.cn or electronic version.
GREE reserves the right to interpret this manual which will be subject to any change due to product
i m p r o v e m e n t without further notice.
G REE Electric Appliances, Inc. of Zhuhai reserves the final right to interpret this manual.
Ultra Heat GMV Multi VRF
R 410A Systems― Outdoor Unit
Owner's Manual
Air Conditioners
GMV-V72W/A-F(U)
GMV-V96W/A-F(U)

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Summary of Contents for GREE ELECTRIC GMV-V72W/A-F(U)

  • Page 1 Ultra Heat GMV Multi VRF R 410A Systems― Outdoor Unit Owner’s Manual Air Conditioners GMV-V72W/A-F(U) GMV-V96W/A-F(U) T hank you for choosing Air Conditioners, please read this owner’s manual carefully before operation and retain it for future reference. If you have lost the Owner’s Manual, please contact the local agent or visit www.gree.com or sent email to global@gree.com.cn or electronic version.
  • Page 2 Preface Gree Ultra Heat GMV Multi VRF System, with the most advanced technologies in the world, uses eco-friendly refrigerant R410A as its cooling medium. For correct installation and operation, please read this manual carefully. This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

  • Page 3: Table Of Contents

    Contents 1 Safety Precautions ....................... 1 2 Product Introduction ......................3 2.1 Names of Main Parts ..........................3 2.2 Combinations of Indoor and Outdoor Units .................... 3 2.3 The Range of Production Working Temperature ................... 4 3 Preparation before Installation ................... 5 3.1 Standard Parts ............................

  • Page 4: Safety Precautions

    Ultra Heat GMV Multi VRF 1 Safety Precautions WARNING (1) Follow this instruction to complete the installation work. Please carefully read this manual before unit startup and service. (2) Wire size of power cord should be large enough. The damaged power cord and connection wire should be replaced by exclusive cable.
  • Page 5 Ultra Heat GMV Multi VRF (23) Electrify the unit 8 hours before operation. Please switch on for 8 hours before operation. Do not cut off the power when 24 hours short-time halting (to protect the compressor). (24) If refrigerant leakage happens during installation, please ventilate immediately. Poisonous gas will emerge if the refrigerant gas meets fire.

  • Page 6: Product Introduction

    Ultra Heat GMV Multi VRF 2 Product Introduction Gree Ultra Heat GMV Multi VRF System adopts inverter compressor technology. According to change the displacement of compressor, step less capacity regulation within range of 10%-100% can be realized. Various product lineup is provided with capacity range from 72K Btu to 96K Btu, which can be widely used in working area and especially applicable to the place with variable load change.

  • Page 7: The Range Of Production Working Temperature

    Ultra Heat GMV Multi VRF Fig.2 Fig.2 is the combination view of the ODU of Modular DC Inverter Multi VRF System and the IDU of Multi VRF System. IDU can be cassette type, one-way cassette type, wall-mounted type, duct type, etc. When any one IDU receives operation signal, ODU will start to work according to the capacity;...

  • Page 8: Preparation Before Installation

    Ultra Heat GMV Multi VRF 3 Preparation before Installation Note: The picture is only used for reference and the actual product prevails. Unit: mm(inch). 3.1 Standard Parts Please use the following standard parts supplied by Gree. Parts for Outdoor Unit Number Name Picture...
  • Page 9 Ultra Heat GMV Multi VRF Fig.3 3.2.2 When there is wall (or similar obstruction) above the unit, keep the distance between the unit top and the wall at least 300mm (11-3/4inch) or above. When the unit is located in a totally open space with no obstructions in four directions, keep the distance between the unit top and wall at least 1500mm (59inch) or above (See Fig.4).
  • Page 10 Ultra Heat GMV Multi VRF Fig.5 3.2.3 Take seasonal wind into consideration when installing the outdoor unit Fig.6 3.2.4 Take snow into consideration when installing the outdoor unit Fig.7...

  • Page 11: Piping Work Requirements

    Ultra Heat GMV Multi VRF 3.3 Piping Work Requirements There should be no fall among outdoor modules. Refer to the table below for piping work requirements. R410A Refrigeratn System Outer diameter (mm/inch) Wall thickness (mm) Type Φ6.35(1/4) ≥0.8 Φ9.52(3/8) ≥0.8 Φ12.70(1/2) ≥0.8 Φ15.9(5/8)

  • Page 12: Installation Instruction

    Ultra Heat GMV Multi VRF 4 Installation Instruction 4.1 Physical Dimension of the Outdoor Unit and Mounting Hole Outline and Physical Dimention of GMV-V72W/A-F(U)、GMV-V96W/A-F(U) : Fig.8 4.2 Connection Pipe 4.2.1 Schematic Diagram of Piping Connection Module Gas pipe Liquid pipe Outdoor connection pipe Connection pipe between indoor branch and indoor units...
  • Page 13 Ultra Heat GMV Multi VRF 4.2.2 Schematic Diagram of Piping Sequence GMV-V72W/A-F(U)、GMV-V96W/A-F(U) : Fig.10 4.2.3 Allowable pipe length and drop height among indoor and outdoor units Y type branch joint is adopted to connect indoor and outdoor units. Connecting method is shown in the figure below.
  • Page 14 Ultra Heat GMV Multi VRF L10: Length from the first branch to the farthest IDU; L11: Length from the first branch to the nearest IDU; Equivalent length of branch of IDU is 0.5m (1-3/4feet). Allowable Value R410A Refrigerant System Fitting Pipe m(feet) ≤1000(3280-3/4) L1+L2+L3+L4+…+L9+a+b+…+i+j...
  • Page 15 Ultra Heat GMV Multi VRF Fig.12 (a) Fig.12 (b) 4.2.4.2 Select appropriate pipe between outdoor unit and the first indoor branch (“L”) as per the pipe size of outdoor unit. Pipe size of basic outdoor module is shown as follows: Pipe between outdoor unit and the first indoor branch: Pipe between outdoor unit and the first indoor branch Basic module...

  • Page 16: Installation Of The Connection Pipe

    Ultra Heat GMV Multi VRF 102000＜C≤239000 FQ02/A 239000＜C FQ03/A C≤136000 FQ014/H1 T-type Branch Pipe 136000＜C≤232000 FQ018/H1 232000＜C FQ018/H2 4.2.4.4 Piping size among upstream branches (”b, e”) Size of connection pipe between branches Total rated capacity of downstream indoor units: X(Btu/h) Gas pipe mm(inch) Liquid pipe mm(inch) X≤17100...
  • Page 17 Ultra Heat GMV Multi VRF (4) Please use a torque wrench to connect union nut on the indoor unit. See Fig.13. Fig.13 1) Align the expansion end of copper pipe with the center of threaded joint. Tighten the flare nuts with your hands.
  • Page 18 Ultra Heat GMV Multi VRF (2) Y-type manifold has serveral pipe sections with different pipe size, which facilitates to match with various copper pipe. Use pipe cutter to cut in the middle of the pipe section with different pipe size and deburr as well.
  • Page 19 Ultra Heat GMV Multi VRF Fig.16 (a) Fig.16 (b) (3) There must be three fixing point for both horizontal and vertical installation of Y-type manifold. See Fig.17. Fixing point 1: 100mm (4in.) on the main inlet manifold from the welding point. Fixing point 2: 200mm (7-7/8in.) on the main branched manifold from the welding point.
  • Page 20 Ultra Heat GMV Multi VRF Fig.18 (a) Fig.18 (b) (5) Thermal insulation for pipeline 1) To avoid condensate or water leakage on connecting pipe, the gas pipe and liquid pipe must be wrapped with thermal insulating material and adhesive pipe for insulation from the air. 2) For heat pump unit, liquid pipe should bear 70ºC(158℉) or above, and gas pipe should bear 120 ºC(248℉) or above.

  • Page 21: Air Purging And Refrigerant Charge

    Ultra Heat GMV Multi VRF 4) Manifold attached foam cannot be taken as insulating material. 5) When wrapping the tape, the later circle should cover half of the former one. Don’t wrap the tape so tightly, otherwise the insulation effect will be weakened. 6) After wrapping the pipe, adopt sealing material to completely fill the hole so as to prevent wind and rain from entering the room.

  • Page 22: Additional Refrigerant Charging

    Ultra Heat GMV Multi VRF 4.4.2 Additional refrigerant charging Outdoor unit has been charged refrigerant before delivery. If the pipeline is longer than 1m (39-3/8inch), please refer to the following table for charging amount of refrigerant. (Liquid pipe prevails) Total refrigerant charging amount R= Pipeline charging amount A + ∑charging amount B of every module (1) Pipeline charging amount Added refrigerant quantity A for liquid piping = ∑Liquid pipe length ×...

  • Page 23: Electric Wiring

    Ultra Heat GMV Multi VRF 4.4.3 Precautions on refrigerant leakage Personnel related to air conditioning engineering design and installation operators must abide by the safety requirement for preventing refrigerant leakage specified in local laws and regulations. Ultra Heat GMV series VRF units adopt the R410A refrigerant, which is nonflammable and nontoxic. However, the space for refrigerant leakage must be sufficient to ensure that the refrigerant concentration does not exceed that specified in the safety requirement;...
  • Page 24 Ultra Heat GMV Multi VRF WARNING (1) Wiring should conform to national rules. All the parts, materials, electric work should be in accordance with local codes. (2) Rated voltage and exclusive power supply should be used. (3) Power cord should be fixed soundly and reliable. Never forcibly pull the power cord. (4) Wire size of power cord should be large enough.
  • Page 25 Ultra Heat GMV Multi VRF (2) Specification of power cord is based on the working condition where ambient temperature is 40 ºC (104℉) and multi-core cable with copper conductor(working temperature is 90 ºC (194℉), e.g. power cable with YJV cross-linked copper, insulated PE and PVC sheath) is lying on the surface of slot.

  • Page 26: System Communication

    Ultra Heat GMV Multi VRF Fig. 24 4.6 System Communication 4.6.1 Communication system include: (1) Communication between ODU and IDU. (2) Communication among IDUs. (3) Communication between IDU and wired controller. (4) Connection between IDU and light board receiver. (5) Communication between different refrigeration systems.
  • Page 27 Ultra Heat GMV Multi VRF (6) Graphics of general communication connection. Fig.25 4.6.2 Communication mode of Ultra Heat GMV Multi VRF Units CAN bus is taken for communication between IDU and ODU and communication among IDUS. 4.6.3 Selection and connection mode of Ultra Heat GMV Multi VRF communication material 4.6.3.1 Select communication material NOTICE! If air conditioners are installed at places where there’s strong electromagnetic interference, the communication wire of IDU and wired controller must use shielded wire and the...
  • Page 28 Ultra Heat GMV Multi VRF Fig.26 (2)Select communication wire between ODU and IDU Total Length L(m) of Communication Cable Material Type Wire size Remarks between IDU Unit and IDU (ODU ) Unit m(feet) 1. If the wire diameter is enlarged to 2 ×AWG16, the total communication length can reach 1500m (4921-1/4feet).

  • Page 29: Connection Method And Steps For System Communication

    Ultra Heat GMV Multi VRF Fig.29 (2) All communication wires of Ultra Heat GMV are connected by screws. Terminal Bend Connection Screw Fig.30 (3) If a single communication wire is not long enough and needs to be connected, the connected joint must be welded or pressure-welded.
  • Page 30 Ultra Heat GMV Multi VRF Fig.31 Connection of communication for multi refrigeration systems: Fig.32 (1) Communication wire and power cord must be separated. (2) Communication wire must be of proper length. Extension is not allowed. (3) IDUs must be connected in series. The last IDU D1/D2 and the ODU D1/D2 must be connected with the communication matched resistance (supplied in the list of ODU spare parts).
  • Page 31 Ultra Heat GMV Multi VRF Fig.33 One wired controller controls one IDU Fig.34 Two wired controller controls one Fig.35 One wired controller controls multiple IDUs Fig.36 Two wired controllers control multiple IDUs When two wired controllers control multiple IDUs, the wired controllers can be connected to any one IDU, provided that the connected IDU is of the same series.
  • Page 32 Ultra Heat GMV Multi VRF Press “confirm/cancel” to return to the previous display until you exit from the setup of parameter values. Below are user’s parameter settings: Parameter Parameter Parameter scope Default value Remark code name 01: master wired When 2 wired controllers control one or more Set up address controller IDUs, they shall have different addresses.

  • Page 33: External Electrical Wiring Diagram

    Ultra Heat GMV Multi VRF Fig.38 4.8 External Electrical Wiring Diagram Each unit should be equipped with a circuit breaker for short circuit protection and exceptional overload protection. Besides, a main circuit breaker shall be prepared for IDUs and ODUs in order to connect or disconnect power of the entire system.
  • Page 34 Ultra Heat GMV Multi VRF Fig.39 NOTICE! Maximum number of IDU is based upon ODU capacity. For details, please refer to the introduction of units’ combination.

  • Page 35: Check Items After Installation And Trial Run

    Ultra Heat GMV Multi VRF 5 Check Items after Installation and Trial Run 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 Unit gets proper thermal insulation or not?
  • Page 36 Ultra Heat GMV Multi VRF (1) 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. Start test operation after unit is normally preheated, otherwise compressor might be damaged.
  • Page 37 Ultra Heat GMV Multi VRF malfunction Error Malfunction occurs when code debugging. There is no malfunction. Next step will start automatically. LED3 displays the quantity of module. In this case, please 01~04 Blink 02_Confirm the confirm if the quantity is correct quantity of manually.
  • Page 38 Ultra Heat GMV Multi VRF Display of related error code: Malfunction Type Error Code(for example) Note Master unit hasn’t been set. LED3 will display CC. ODU malfunction XXXX means IP of IDU with error. 3s later, d3 will be displayed. For instance, if no.100 IDU has d3 error, IDU malfunction XXXX/d3 then the LED3 will display circularly as below: 01(2s...
  • Page 39 Ultra Heat GMV Multi VRF More than 2 master units are set. light light light Reset master unit. System detects “driven light light Light communication error between master unit and inverter compressor”. System detects “driven light light Light communication error between master unit and inverter fan”.
  • Page 40 Ultra Heat GMV Multi VRF Quantity of 03_Confirm the Light Light connected blink quantity of IDUs IDUs If the quantity displayed is the same with actual quantity, then press SW4 confirmation button on the master unit to confirm it. Unit will start next progress: ——...
  • Page 41 Ultra Heat GMV Multi VRF Step 11: progress 06 is “Refrigerant judgments before startup”; If the refrigerant quantity inside the system meets the requirement of operation startup, system will display as below and start next progress. —— Debugging code Progress code Status code LED1 LED2...
  • Page 42 Ultra Heat GMV Multi VRF confirm the startup again. Operate as below: If master unit displays as below, system is waiting for confirmation signal. —— Debugging code Progress code Status code LED1 LED2 LED3 progress Code Display status code Display status Code Display status 08_Confirm...
  • Page 43 Ultra Heat GMV Multi VRF System detects error in indoor pipeline. XXXX is IP of the faulted IDU. 3s later, error code d5 is Light Light XXXX/d5 Light displayed. For example, IDU no. 100 has d5 error, then LED3 displays like this: 01 (2s later) 00 (2s later) d5, and repeat again.

  • Page 44: Common Malfunctions And Troubleshooting

    Ultra Heat GMV Multi VRF 6 Common Malfunctions and Troubleshooting Check the following items before contacting for repair. Phenomenon Reason Measure Without power supply Connect to power supply Voltage is too low Check if the voltage is within rating range The unit doesn’t run.
  • Page 45 Ultra Heat GMV Multi VRF Following circumstances are not malfunction. “Malfunction” Reason When unit is started immediately after it is Overload protection switch makes it run after 3 just turned off minutes delay Unit doesn’t run When power is turned on Standby operating for about 1 minute Mist comes from Under cooling...

  • Page 46: Error Indication

    Ultra Heat GMV Multi VRF 7 Error Indication Inquiry method of error indication: combine division symbol and content symbol to check the corresponding error. For example, division symbol L and content symbol 4 together means over-current protection. Content symbol Division symbol Abnormal Auxiliary...
  • Page 47 Ultra Heat GMV Multi VRF Refrigerant Unit waiting for recovery Defrosting Oil-return debugging operation of after-sales Limit setting Compulsory SE operation Compulsory for max. excursion of setting of defrosting capacity/outpu engineering system t capacity code of IDU Content symbol Division symbol For single For single...
  • Page 48 Ultra Heat GMV Multi VRF Inquiry of Inquiry of Inquiry of Check quantity Heat pump Heating only project code of malfunction parameters of IDU on line unit unit Content symbol Division symbol Rotation speed Setting of IDU is not Malfunction of Malfunction of Zero-crossing of EC DC water...
  • Page 49 Ultra Heat GMV Multi VRF Debugging Charge Charge Cleaning confirmation Cooling refrigerant refrigerant reminding of when starting automatically manually filter up the unit High Cooling only temperature Negsative code Fan model unit prevention when heating Content symbol Division symbol Indoor unit’s branch is not inconsistent for one-to-more unit of heat recovery...

  • Page 50: Maintenance And Care

    Ultra Heat GMV Multi VRF 8 Maintenance and Care Regular check, Maintenance and care should be performed every six months by professional personnel, which will prolong the unit life span. Disconnect the power supply before cleaning and maintenance. 8.1 Outdoor Heat Exchanger Outdoor heat exchanger is required to be cleaned once every six months.

  • Page 51: After-Sales Service

    Ultra Heat GMV Multi VRF 9 After-sales Service In case the air-conditioning unit you bought has any quality problem or you have any inquiry, please contact the local after-sales service agency designated by Gree. Warranty should meet the following requirements: (1) First run of the unit should be operated by professional personnel from Gree appointed service center.
  • Page 52 GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI Add: West Jinji Rd, Qianshan, Zhuhai, Guangdong, China, 519070 Tel: (+86-756) 8522218 Fax: (+86-756) 8669426 E-mail: gree@gree.com.cn www.gree.com...

This manual is also suitable for:

Gmv-v96w/a-f(u)

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