Gree GMV5 Compact Series Owner's Manual
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Gree GMV5 Compact Series Owner's Manual

R410a systems-outdoor unit
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See also: Service Manual
GMV5 Compact Series
R410A Systems―Outdoor Unit
Owner's Manual
Air Conditioners
GMV-224WL/A-X
GMV-250WL/A-X
GMV-280WL/A-X
Thank you for choosing Gree air conditioners, please read this owner's manual carefully before
operation and keep it for future reference.

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Summary of Contents for Gree GMV5 Compact Series

  • Page 1 GMV5 Compact Series R410A Systems―Outdoor Unit Owner's Manual Air Conditioners GMV-224WL/A-X GMV-250WL/A-X GMV-280WL/A-X Thank you for choosing Gree air conditioners, please read this owner’s manual carefully before operation and keep it for future reference.
  • Page 3 Preface Gree GMV5 Compact Series 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. Before reading the manual, please note that: (1) For safety operation, please strictly follow the instructions in this manual.

  • Page 5: Table Of Contents

    Contents 1 Safety Instruction ..........................1 2 General Introduction ..........................3 2.1 Outdoor Unit and Indoor Unit Combination ....................3 2.2 Operating Range..........................3 3 Before Installation ..........................4 3.1 Standard Accessories..........................4 3.2 Installation Location ..........................4 4 Installation Instruction.......................... 6 4.1 Physical Dimension of the Outdoor Unit and Mounting Hole ..............6 4.2 Piping Design .............................9 4.3 Oil Return Trap Installation.........................

  • Page 6: Safety Instruction

    GM V5 Compact Series VRF Outdoor Unit 1 Safety Instruction refers to things that are not allowed. Incorrect operation may cause personal injury or death. refers to things that must be allowed. Incorrect operation may cause personal injury or death. Installation should be conducted by Follow this instruction to complete dealer or qualified personnel.
  • Page 7 GREE will not assume responsibility of personal injury or equipment damage caused by improper installation and commission, unnecessary service and incapable of following the rules and instructions listed in this manual.

  • Page 8: General Introduction

    GM V5 Compact Series VRF Outdoor Unit 2 General Introduction GREE GMV5 Compact series All DC Inverter VRF outdoor units are based on GREE DC Inverter compressor technology and special designed for the residential apartments, commercial offices and super markets. And the capacity range of GMV5 Compact series outdoor units is 22.4 kW, 25 kW, and 28 kW.

  • Page 9: Before Installation

    GM V5 Compact Series VRF Outdoor Unit 3 Before Installation Remarks: the pictures are for reference only, and the all the unit is in “mm”. 3.1 Standard Accessories Please use the below standard accessories as per the instruction Accessories for outdoor unit Name Appearance Remarks...
  • Page 10 The waterproof cover should not affect the ventilation of the outdoor unit fan. Caution! If the unit was installed on the following improper sites leading to malfunction, please contact Gree appointed service center for help. ①the place full of oil;...

  • Page 11: Installation Instruction

    ☆ Installation dimension should observe the installation instruction, and outdoor unit must be fixed on the installing place; ☆ Please call Gree appointed professional people to install units. 4.1 Physical Dimension of the Outdoor Unit and Mounting Hole 1) Outdoor unit physical dimension...
  • Page 12 GM V5 Compact Series VRF Outdoor Unit Model GMV-224WL/A-X 1098 1584 GMV-250WL/A-X 1098 1584 GMV-280WL/A-X 1098 1584 2) Mounting hole physical dimension Fig.3 Mounting hole physical dimens ion 3）Use M12 bolt to fix up the chassis of the units when installing units. 4）A space is needed to install outdoor unit to insure unit operate normally.
  • Page 13 GM V5 Compact Series VRF Outdoor Unit ii Obstructions in the air outlet Fig.4 Installation space for outdoor unit Note： ⑴ Be sure that L is less than H, and H is the height of the unit and its chassis; ⑵...

  • Page 14: Piping Design

    GM V5 Compact Series VRF Outdoor Unit 4.2 Piping Design 4.2.1 The Branch of the Connection Pipe The connection pipe between indoor unit and outdoor unit uses “Y” type branch, as shown in Fig.5. 室外机 Y型分歧管 Y -type manifold Outdoor unit Indoor unit 室内机...
  • Page 15 GM V5 Compact Series VRF Outdoor Unit GMV-224WL/A-X、GMV-250WL/A-X、 Allowable V alue Fitting Pipe GMV-280WL/A-X L1+L2+L3+…+L9+a+b+…j Total length (actual length) of fitting pipe 250m Actual length 100m Length of farthest fitting pipe L1+L6+L7+L8+L9+j Equivalent length 120m Equivalent length from the first manifold to the furthest L6+L7+L7+L8+L9+i pipe ——...
  • Page 16 GM V5 Compact Series VRF Outdoor Unit If L≥90m and H≥15m, then : ② When the distance between indoor unit and its nearest manifold exceeds 10m, the liquid pipe size of the indoor unit whose rated capacity is less than or equal to 5.0KW should be 2 times bigger than before. （2）...

  • Page 17: Oil Return Trap Installation

    GM V5 Compact Series VRF Outdoor Unit X≤5.6 Φ12.7 Φ6.35 Φ15.9 Φ9.52 5.6＜X≤14.2 Φ19.05 Φ9.52 14.2＜X≤22.0 Φ22.2 Φ9.52 22.0＜X≤30.0 （3） Manifold should be matched with the fitting pipe of indoor units.（If the distance from the first manifold to a indoor unit exceeds 30m, then double the gas pipe size between them） Indoor units manifold 室内分歧管...

  • Page 18: Installation Of The Connection Pipe

    GM V5 Compact Series VRF Outdoor Unit from the down top. And also set oil loop at the lowest and highest position; When the outdoor unit is at higher position, oil loop is required to be set on the vertical pipeline for every 10m from the down top.
  • Page 19 GM V5 Compact Series VRF Outdoor Unit 200mm. the pipes cannot be repeatedly bent or stretched; otherwise the material will get harden. Do not bend or stretch the pipe over three times at the same position. Please use a torque wrench to connect union nut on the indoor unit. See Fig.9. Spanner Torque spanner Fig.9 Installation of fitting pipe...
  • Page 20 GM V5 Compact Series VRF Outdoor Unit 从中间切开 Cut in the middle Fig.11 Cut manifold Y -type manifold must be installed vertically or horizontally. A向示图 B向示图 Seeing from direction A Seeing from direction B Fig.12 Installation of manifold Select Y -type manifold: Total capacity of downstream indoor R410A Model...
  • Page 21 GM V5 Compact Series VRF Outdoor Unit thermal insulating material and adhesive pipe for insulation from the air; 2) For heat pump unit, liquid pipe should bear 70℃ or above, and gas pipe should bear 120℃ or above. For cooling only unit, both liquid pipe and gas pipe should bear 70℃ or above. Example: Polyethylene foam can bear 120℃...

  • Page 22: Pressure Check, Vacuum And Additional Refrigerant Charge

    GM V5 Compact Series VRF Outdoor Unit 4.4.5 Connecting Outdoor Unit Pipe Expansible nut Gas pipe Liquid pipe Fig.14 The way of outdoor unit connecting pipe (1) Turn off bolts, board above unit, board on the front of unit, and the right board. (2) According to the installation location, the right location of connecting pipes can be one of the four directions.
  • Page 23 GM V5 Compact Series VRF Outdoor Unit Fig.15 The way of connecting pipe Number Name Outdoor unit Booster valve Nitrogen Gas valve Liquid valve 4.5.2 Vacuum (1) Conform outdoor unit liquid valve and gas valve are closed when deflating air. (2) Follow the instruction to deflate air of unit with vacuum pump.

  • Page 24: Electric Wiring

    GM V5 Compact Series VRF Outdoor Unit (5) Turn off vacuum pump, “LO” knob and “HI” knob, and observe the manometers value. If the pressure value doesn’t increase in 2 hours, the units don’t exist any leaks and air. If not, please check the units seriously and find leaks.
  • Page 25 GM V5 Compact Series VRF Outdoor Unit ◆ Connect the unit to the special earthing device and make sure the unit is earthed soundly. Please call professional personnel to install. ◆ Air switch and circuit breaker is required to be set. Air switch should have both magnetic trip and thermal trip functions so as to protect the unit when short-circuit and overload happens.
  • Page 26 GM V5 Compact Series VRF Outdoor Unit Capacity of circuit Min. sectional area of Min. sectional area of Total capacity of indoor units ） ） breaker（A） power cord（mm grounding wire（mm Below 10A 16～10A 20～16A 32～20A Breaker capacity and power cord specification for every indoor unit. Capacity of circuit Min.

  • Page 27: Communication Wiring

    GM V5 Compact Series VRF Outdoor Unit please adjust power cord model according to the nation standard (GB/T 16895.15-2002); circuit breaker model is based on the condition that environment temperature is 40℃, if the actual condition doesn’t agree with above condition, please adjust circuit breaker model according to the circuit breaker specification.
  • Page 28 GM V5 Compact Series VRF Outdoor Unit respectively, and install the wiring lid. Note: 1、Communication wire of the last indoor unit is assorted wire (resistance suited); 2、When indoor unit is Wall Type IDU, both input and output communication wires are offered by the Wall Type IDU.
  • Page 29 GM V5 Compact Series VRF Outdoor Unit The following table shows the material of communication wire, the length (L) of the communication wire between indoor unit and wire controller, the sectional area of communication wire. Material Length L(m) sectional area Standard Remarks L≤250...

  • Page 30: Check Items After Installation And Trial Run

    GM V5 Compact Series VRF Outdoor Unit 5 Check Items after Installation and Trial Run 5.1 Check Items after Installation Check Items Conditions Might Happen Check Has the unit been fixed firmly? The unit may drop, shake or emit noise. Has the gas leakage be checked? It may cause insufficient cooling/heating capacity.
  • Page 31 GM V5 Compact Series VRF Outdoor Unit Before the trial running, make sure the needed amount of refrigerant has been added to the pipe or at least 70% of the needed refrigerant has been added. (3) During the trial running, system will operate according to the ambient temperature. 1) When outdoor temperature is above 20℃, debugging shall be in cooling mode.

  • Page 32: Common Malfunction And Troubleshooting

    Do not repair the air conditioning personally but instead contact the professionally skilled personnel at the Gree appointed service center, as the incorrect repair would cause electric shock or fire hazard etc. 6.1 Check before Contacting Service Center...

  • Page 33: Normal Phenomenon

    GM V5 Compact Series VRF Outdoor Unit Note: If problem cannot be solved after the above check, please contact Gree appointed service center and also give a description of the error occurred as well as the model of the unit.
  • Page 34 GM V5 Compact Series VRF Outdoor Unit Mode conflict Malfunction of indoor ambient temperature sensor Malfunction of indoor coil inlet temperature sensor Malfunction of indoor mid-coil temperature sensor Malfunction of indoor coil outlet temperature sensor Malfunction of indoor humidity sensor Malfunction of jumper Malfunction of outdoor ambient temperature sensor Malfunction of defrosting temperature sensor...
  • Page 35 GM V5 Compact Series VRF Outdoor Unit Phase-lacking of inverter compressor Drive charging circuit malfunction of compressor Demagnetization protection Communication malfunction between indoor unit and outdoor unit, indoor unit’s wires controller Communication malfunction between main control and inverter compressor driver Phase-lacking protection of power Malfunction of fan 6.3.2 Error Code of Limited Frequency Reduction for Protection...

  • Page 36: Maintenance

    (6) Check whether the outdoor unit is installed firmly. If there is something abnormal, please contact the GREE appointed service center. 7.4 Maintenance after the Seasonal Use (1) Cut off the main power supply of the air conditioning system.

  • Page 37: Parts Replacement

    GM V5 Compact Series VRF Outdoor Unit 7.5 Parts Replacement Purchase parts from Gree appointed service center or dealer if necessary. CAUTION! When doing airtightness and leakage test, do not mix oxygen, acetylene and other dangerous gases into the refrigerant circuit. The best way is to use nitrogen or refrigerant to do such test or it will be dangerous.

  • Page 38: After-Sales Service

    Gree. Warranty should meet the following requirements : (1) First run of the unit should be operated by professional personnel from Gree appointed service center. (2) Only accessories manufactured by Gree can be used on the machine.
  • Page 40 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 66174100040...

This manual is also suitable for:

Gmv-224wl/a-xGmv-280wl/a-xGmv-250wl/a-x

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