Table of Contents
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Thank you for choosing Air Conditioners, please read this owner's manual carefully before
operation and retain it for future reference.
GREE reserves the right to interpret this manual which will be subject to any change due to
product improvement without further notice.
GREE Electric Appliances, Inc. of Zhuhai reserves the final right to interpret this manual. 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.
INSTALLATION AND OPERATION MANUAL
FOR AHU-KIT UNIT
Owner's Manual
Air Conditioners
Models：
GMV-N140U/A-T
GMV-N280U/A-T
GMV-N560U/A-T
Gree Electric Appliances, Inc. of Zhuhai
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Table of Contents
Related Manuals for Gree GMV-N140U/A-T
Summary of Contents for Gree GMV-N140U/A-T
- Page 1 Thank you for choosing Air Conditioners, please read this owner’s manual carefully before operation and retain it for future reference. GREE reserves the right to interpret this manual which will be subject to any change due to product improvement without further notice. ...
- Page 2 Preface For correct installation and operation, please read all instructions carefully. Before reading the instructions, please be aware of the following items: (1) For the safe operation of this unit, please read and follow the instructions carefully. (2) During operation, total capacity of indoor units should not exceed the total capacity of outdoor units.
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Page 3: Table Of Contents
Contents 1 Safety Precautions ....................1 2 Product Introduction ..................... 3 2.1 Names of Key Components....................3 2.2 Overall System Connection Diagram .................. 3 3 Preparations for Installation ................. 4 3.1 Before Installation ........................4 3.2 Standard Fittings ........................4 3.3 Selecting the Air Handling Unit .................... -
Page 4: Safety Precautions
OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT 1 Safety Precautions means items that must be forbidden! Otherwise, it may lead to personal injury or death or serious damage. means items that must be followed! Otherwise, it may lead to personal injury or property loss. - Page 5 Any personal injury or property loss caused by improper installation, improper debug, unnecessary repair or not following the instructions of this manual should not be the responsibility of Gree Electric Appliances, Inc. of Zhuhai.
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Page 6: Product Introduction
OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT 2 Product Introduction 2.1 Names of Key Components Fig.2.1 ① ② Name Control Box Expansion valve kit Box 2.2 Overall System Connection Diagram Fig.2.2... -
Page 7: Preparations For Installation
OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT 3 Preparations for Installation 3.1 Before Installation Notes: Product graphics are only for reference. Please refer to actual products. Unspecified measure unit is mm. ① This equipment is designed for R410A system, and the designed working pressure is 4.2 MPa or 42 bar. -
Page 8: Selecting The Air Handling Unit
Allowable capacity of capacity Suggested air Model of heat exchanger (dm heat exchanger (kW) （kW） volume (m Minimum Maximum Minimum Maximum 2.09 2.64 1500~1850 GMV-N140U/A-T 11.2 2.65 12.3 1850~2100 14.0 3.31 4.12 12.4 15.4 2100~2400 22.4 4.63 6.60 17.7 24.6... -
Page 9: Location For Installation
OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT Capacity (kW) 11.2 14.0 22.4 28.0 45.0 50.4 Please ensure dialing the code switch properly in place instead of middle position. Setting the switch to "ON" stands for "0", otherwise stands for "1". (Notes: The black part is the deflector rod.) The figure shows that the addresses of ”1,2,3,4,5” are ”0,0,1,0,0”. -
Page 10: Requirements For Communication Wire
OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT Notes! ① Do not install or operate the unit in rooms mentioned below: a). Where mineral oil, like cutting oil is present. b). Where the air contains high levels of salt such as air near the ocean. c). -
Page 11: Wiring Requirements
Air Switch Model Power Cord Size Minimum Sectional Minimum Sectional Capacity(A) Area(mm Area(mm GMV-N140U/A-T 220~240V/1ph/50Hz & GMV-N280U/A-T 208~230V/1ph/60Hz GMV-N560U/A-T Notes: ① Use copper wire only as unit’s power cord. Operating temperature should be within its rated value. ② Above selection requirements: Power cord size is based on BV single-core wire (2~4pc) at 40°... -
Page 12: Installation Instructions
OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT 4 Installation Instructions 4.1 Unit Dimensions and Maintenance Space (1) Size of control box for GMV-N140U/A-T、GMV-N280U/A-T and GMV-N560U/A-T (Unit: mm): Fig.4.1.1 Maintenance space of control space (Unit: mm): Fig.4.1.2... - Page 13 OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT (2) Size of EXV box for GMV-N140U/A-T and GMV-N280U/A-T(Unit: mm): Fig.4.1.3 Size of EXV box for GMV-N560U/A-T (Unit: mm): Fig.4.1.4 Maintenance space of EXV box (Unit: mm): Fig.4.1.5...
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Page 14: Piping Installation
Make sure to install gas and liquid pipe diameters in function of the air handling unit capacity class. Connection pipe Model Capacity(kW) Gas pipe(mm) Liquid pipe(mm) Φ15.9 Φ9.52 Φ15.9 Φ9.52 GMV-N140U/A-T 11.2 Φ15.9 Φ9.52 14.0 Φ19.05 Φ9.52 22.4 GMV-N280U/A-T Φ22.2 Φ9.52 28.0... - Page 15 OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT satisfy the clearance requirement of brazing(the clearance requirement is 0.1~0.2mm normally). 4.2.3 Selection of Piping (1) Ensure the inside of the pipes is clean and no foreign materials. (2) Pipe specifications: R410A System Pipe Φ（mm/inch） Thickness(mm) Temper grade of piping material Φ6.35（1/4）...
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Page 16: Exv Installation
OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT All field piping must be provided by a licensed refrigeration technician and must comply with the relevant local and national codes. ① For refrigerant piping of outdoor unit, refer to the installation manual supplied with the outdoor unit. -
Page 17: Installation Of The Control Box
OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT (4) Secure the wire clamp (C) in place again (6xM4.2). (5) Make sure that field pipes are fully insulated. Make sure that there is no gap between both ends in order to avoid condensation dripping (finish the connection with tape eventually). - Page 18 OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT Precautions: (1) Thermistor cable and remote controller wire should be kept away from power cable in a distance of at least 50mm. Violating this rule may generate electric noise and lead to malfunctions. (2) Use wires as specified and connect them tightly with wiring terminals. Keep the wires in order and do not obstruct other devices.
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Page 19: Installation Of The Thermistors
OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT ⑤ Pull the wires inside through the screw nut and close the nut firmly in order to ensure a good pull relieve and water protection. ⑥ The cables require an additional pull relief. Fixing the cable with the wire clamp. 4.5 Installation of the Thermistors 4.5.1 Refrigerant Thermistors Location of the thermistor:... - Page 20 OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT ② Keep the thermistor and air handling unit in good contact. Put the top of the thermistor on the air handling unit, because the top of thermistor is the most sensitive part. Please fixing the thermistor on the horizontal plane of copper tube (within ± 30° ), and make them close together.
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Page 21: Installation Of The Exv Cable
OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT 4.5.2 Air Thermistor The air thermistor (RT1) can be installed in the space which needs temperature control, or the inlet scoop of air handling unit. Notes: ① For connection to outdoor unit and to AHU-KIT unit: Pull the wires inside through the screw nut and close the nut firmly in order to ensure a good pull relieve and water protection. -
Page 22: Connect Cables And Terminals Of Wiring Board
OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT ② Please carefully read the wiring diagram before carry out the wiring work, incorrect wiring could cause malfunction or even damage the unit. ③ The capacity of power supply should be big enough. ④ The unit should be powered by independent circuit and specific socket. ⑤... -
Page 23: Power Cord Connection
OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT 5.2 Power Cord Connection Notes! Power supply of each indoor unit must be from the same source. Fig.5.2 For units with single-phase power supply: 1) Detach the electric box lid. 2) Let the power cord pass through the wiring through-holes. 3) Connect the power cord to terminal “L, N, ”. -
Page 24: Connect Communication Wire Of Wired Controller
OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT 5.4 Connect Communication Wire of Wired Controller Open electric box cover of indoor unit. Let the communication wire go through the rubber ring. Connect the communication wire to terminal H1 and H2 of indoor 4-bit wiring board. Fix the communication wire with wire clip on the electric box. -
Page 25: Operation And Maintenance
OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT Fig.5.5 6 Operation and Maintenance 6.1 Before Operation Notes: ① Before initiating operation, please read the operation manuals of outdoor unit, AHU-KIT unit and the air handling unit carefully. -
Page 26: Test Operation
OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT ② Refer to the installation manuals of the outdoor unit, AHU-KIT unit and the remote controller about settings of unit. 6.2 Test Operation Before executing "test operation" as well as before operating the unit, you must check the following: ①... -
Page 27: Disposal Requirements
OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT power supply. 6.4 Disposal Requirements Dismantling of the unit, treatment of the refrigerant, of oil and of other parts must be done in accordance with relevant local and national legislation. 7 Table of Error Codes for Indoor Unit Error Error Error... -
Page 28: Troubleshooting
OPERATING INSTALLATION MANUAL FOR AHU-KIT UNIT 8 Troubleshooting If your air conditioner is not working well, please check the following table first before asking for service: Phenomenon Troubleshooting ① No power supply. ② Circuit breaker is tripped because of current leakage. The unit can’t start ③... - Page 29 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...