Related Manuals for Gree NCHS2D
Summary of Contents for Gree NCHS2D
- Page 1 Owner's Manual Original Instructions Commercial Air Conditioners GMV6 HR Mode Exchange Box Models: NCHS2D NCHS4D NCHS8D...
- Page 2 (7) The final right to interpret for this instruction manual belongs to Gree Electric Appliances Inc. of Zhuhai.
- Page 3 Exception Clauses Manufacturer will bear no responsibilities when personal injury or property loss is caused by the following reasons: (1) Damage the product due to improper use or misuse of the product; (2) Alter, change, maintain or use the product with other equipment without abiding by the instruction manual of manufacturer;...
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Page 4: Table Of Contents
Contents 1 Safety Notices (Please be Sure to Abide) ·························································· 1 2 Product Introduction ······················································································ 4 2.1 Names of Main Parts ························································································ 4 2.2 Parameter Table ······························································································ 5 3 Preparation before Installation ········································································ 5 3.1 Standard Accessory ························································································· 5 3.2 Installation Site································································································ 6 3.3 Selection Requirement for Communication Wire ·····················································... -
Page 5: Safety Notices (Please Be Sure To Abide)
GMV6 HR Mode Exchange Box 1 Safety Notices (Please be Sure to Abide) WARNING: If not abide strictly, it may cause severe damage to the unit or the people. NOTICE: If not abide strictly, it may cause slight or medium damage to the unit or the people. - Page 6 GMV6 HR Mode Exchange Box Diameter of power cord must After the power cord is be large enough. Damaged connected, please install the power cord and connecting cover of electric box to avoid wire must be replaced by danger. specialized electric cable. Short circuit is forbidden.
- Page 7 Gree Electric Appliances, Inc. of Zhuhai will not assume responsibility for any personal injury or property loss caused by improper installation, improper debugging, unnecessary repair or not following the instructions of this manual.
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Page 8: Product Introduction
GMV6 HR Mode Exchange Box 2 Product Introduction 2.1 Names of Main Parts One-to-two Mode Exchange Box: Fig.2.1.1 One-to-four Mode Exchange Box: Fig.2.1.2 One-to-eight Mode Exchange Box: Fig.2.1.3... -
Page 9: Parameter Table
GMV6 HR Mode Exchange Box 2.2 Parameter Table Model Unit NCHS2D NCHS4D NCHS8D Rated voltage V,Hz 220-240V ~50/60Hz Max. quantity of connecting indoor unit Max. branch quantity of connecting indoor unit Max. quantity of connecting indoor unit for each branch Max. -
Page 10: Installation Site
The sizes of both nozzles are IDΦ22.6mm and Φ22.2mm, nozzle Φ28mm Silencer 2 is used for connecting the low pressure gas pipe of NCHS2D. The sizes of both nozzles are IDΦ22.6mm and Φ22.2mm, nozzle Φ22 mm Silencer 1 is used for connecting the high pressure gas pipe of NCHS4D and NCHS8D. -
Page 11: Selection Requirement For Communication Wire
GMV6 HR Mode Exchange Box NOTES! ① The installation of the unit must comply with national and local safety regulations. ② Users can’t install the unit by themselves, because the installation quality will affect the operation directly. After purchasing the unit, please contact with dealer. The unit must be installed and debugged by professional installer. -
Page 12: Wiring Requirement
Min sectional Model Power air switch area for earthing area for power wire (mm cord(mm NCHS2D 220-240V ~50/60Hz NCHS4D 220-240V ~50/60Hz NCHS8D 220-240V ~50/60Hz NOTES! ① Above circuit breaker and power cord specification are selected according to the max power (max current). -
Page 13: Installation Instruction
GMV6 HR Mode Exchange Box 4 Installation Instruction 4.1 Installation of Mode Exchange Box 4.1.1 Dimension of Outdoor Unit and Mounting Hole Position After the unit is installed, a maintenance port should be reserved at the electric box side of unit for maintenance. - Page 14 GMV6 HR Mode Exchange Box Due to the structure of installation space, the Mode Exchange Box needs a maintenance port. Please reserve another maintenance port for Mode Exchange Box. Fig.4.1.4 NCHS2D outline and installation dimension: Unit：mm Fig.4.1.5...
- Page 15 GMV6 HR Mode Exchange Box NCHS4D outline and installation dimension: Unit：mm Fig.4.1.6 NCHS8D outline and installation dimension: Unit：mm Fig.4.1.7 4.1.2 Suspend the Mode Exchange Box (1) Drill bolt holes and install bolts 1) Stick the installation template at the installation position flatly, drill 4 holes at the installation position basing on the installation template.
- Page 16 GMV6 HR Mode Exchange Box Unit：mm Fig.4.1.8 Fig.4.1.9 2) Insert M10 expansion bolt into hole, and then set the iron nail into bolt. As shown in Fig.4.1.10, and then remove the paper pattern. NOTE! The length of bolt should be selection according to the height of room. Bolt should be purchased by the user.
- Page 17 GMV6 HR Mode Exchange Box NOTES! ① Before operation, please prepare all pipelines (connection pipe, drainage hose) and wires (connection wire for wired controller, connection wire for Mode Exchange Box). ② When drilling holes on ceiling (air return outlet or air outlet), you can need to reinforce the ceiling to prevent vibration.
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Page 18: Pipe Connection
GMV6 HR Mode Exchange Box Fig.4.1.13 4.2 Pipe Connection 4.2.1 Installation Instruction for Silencer If there’s silencer in the packing accessories, please refer to below diagram for its installation method. Take NCHS4D for example. Connect either left or right side of converter to outdoor unit for piping according to installation space;... - Page 19 GMV6 HR Mode Exchange Box Unit：mm Fig.4.2.2 NOTE! During welding, wrap up the pipe with wet cloth (as shown in the Fig.4.2.2). (2) Installation instruction for silencer while the left side of converter is connected to outdoor unit; Select the size matching the diameter of the muffler on the high-pressure gas pipe of mode converter, and cut the high-pressure gas pipe of mode converter at a suitable position with a pipe cutter.
- Page 20 GMV6 HR Mode Exchange Box Unit：mm Fig.4.2.4 NOTE! During welding, wrap up the pipe with wet cloth (as shown in the Fig.4.2.4). 4.2.2 Notices for Welding (1) Pipeline connection must adopt socket soldering welding. The gap between socket components cannot be too big or too small to only make sure they won’t fall down by relying on friction force.
- Page 21 GMV6 HR Mode Exchange Box Fig.4.2.6 4.2.3 Precautions for the Installation of Connection Pipe (1) Please comply with the following rules during pipe connection: Connection pipe should be as short as possible, so is the height difference between indoor and outdoor units. Keep the pipe bends as less as possible and the bend radius as large as possible.
- Page 22 GMV6 HR Mode Exchange Box 3) Wrap the connection pipe (not insulated) and joint with sponge and then use plastic adhesive tape to bundle it. 4) Support the connection pipe with bracket. 5) The degree of curvature of piping can’t be too small, otherwise, the pipe may be broken. Installer should use pipe bender to bend the pipe.
- Page 23 GMV6 HR Mode Exchange Box length of a straight pipe between the branch of the manifold and the IDU cannot be less than 500mm. See Fig.4.2.10. Unit：mm Fig.4.2.10 (3) There must be three fixing point for both horizontal and vertical installation of the Y-type manifold.
- Page 24 GMV6 HR Mode Exchange Box Fig.4.2.12 Fig.4.2.13 Fig.4.2.14 4) Thermal insulating material of branches should be the same as that of the pipeline. The attached foam of branches 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 too tight, otherwise the insulation effect will be weakened.
- Page 25 GMV6 HR Mode Exchange Box Schematic diagram of piping connection： Fig.4.2.15...
- Page 26 GMV6 HR Mode Exchange Box 4.2.7 Size Requirement for Branch Pipe and Piping Take the connection sketch map of single-module system for example. Fig.4.2.16 4.2.7.1 Branch Selection of Mode Exchange Box (“A1, A2”) Select branch of Mode Exchange Box as per total capacity of downstream indoor unit(s). Please refer to the following table.
- Page 27 GMV6 HR Mode Exchange Box Total rated capacity of downstream R410A refrigerant system Model indoor units: X(kW) Y-type branch X≤16 FQ01B/A Piping size between Mode Exchange Box and downstream indoor unit (“b、c、d、g”) Piping size between Mode Exchange Box and downstream indoor unit Total rated capacity of downstream indoor units: X (kW) Gas pipe/mm...
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Page 28: Installation And Test For Drainage Hose
GMV6 HR Mode Exchange Box Connecting method is as shown in the picture: Fig.4.2.17 4.2.7.4 Branch Selection of Indoor Unit of Mode Exchange Box (“C1”) capacity of downstream indoor R410A refrigerant system Model units: X/kW Y-type branch 16<X≤28 FQ01B/A Size of connection pipe between indoor branch and indoor unit should be consistent with the connection pipe of indoor unit. - Page 29 GMV6 HR Mode Exchange Box (5) The side of drainage hose must be bigger than or equal to the size of drainage piping. (6) Install the drainage hose according to below figure and then perform thermal insulation for it. Incorrect installation may lead to leakage and then moisten indoor furniture and other objects. (7) Purchase the normal hard PVC pipe at local market as for the drainage pipeline.
- Page 30 GMV6 HR Mode Exchange Box (4) When multiple drainage pipes are connected together, connection pipes as shown in Fig.4.3.4 or Fig.4.3.5. Unit：mm Fig.4.3.4 Unit：mm Fig.4.3.5 (5) Install the trap as shown in Fig.4.3.6. (6) One trap should be installed for every unit. (7) Convenience for cleaning trap in the future should be considered when installing it.
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Page 31: Cable Connection
GMV6 HR Mode Exchange Box (9) Drainage pipe should kept 1%～2% gradient downwards. Therefore, install a support bracket every 1000-1500mm. Unit：mm Fig.4.3.10 4.3.3 Test of Drainage System (1) Connect the drain hose to the other drain connection pipe of Mode Exchange Box water tray. Add about 1L of water. -
Page 32: Connection Of Cable And Terminal Of Wiring Board
GMV6 HR Mode Exchange Box ⑦ All wiring must use pressure terminal or single wire. If connect the stranded wire to the wiring board directly, it may cause fire. ⑧ Do not let cable connect refrigerant pipe and compressor or fan. ⑨... -
Page 33: Connect Power Cord
GMV6 HR Mode Exchange Box 5.2 Connect Power Cord NOTE! The Mode Exchange Box in the same system must be supplied power uniformly. Fig.5.2.1 Remark: The maximum quantity “n” of indoor unit is decided by the capacity of indoor unit, please refer to capacity of unit. -
Page 34: Connect Communication Wire Of Indoor Unit And Outdoor Unit
GMV6 HR Mode Exchange Box One-to-four Mode Exchange Box: Fig.5.2.3 One-to-eight Mode Exchange Box: Fig.5.2.4 5.3 Connect Communication Wire of Indoor Unit and Outdoor Unit (1) Open electric box cover of indoor unit. (2) Pass the communication wire through rubber ring. (3) Connect communication wire to wiring board OD (D1, D2) of outdoor unit of Mode Exchange Box. - Page 35 GMV6 HR Mode Exchange Box (5) Fix the communication wire with wire-fixing clamp. (6) In order to ensure the reliability of communication between indoor unit and outdoor unit, add a matched resistance (in the packing bag) on the wiring board at the last connected Mode Exchange Box.
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Page 36: Routine Maintenance
GMV6 HR Mode Exchange Box 6 Routine Maintenance CAUTION! ① Only clean the air conditioner after turning off the unit and cutting off the power. Otherwise, it may cause electric shock or injury. ② When cleaning the air conditioner, please stand on the solid platform. ③... -
Page 37: Troubleshooting
GMV6 HR Mode Exchange Box 7 Troubleshooting If the air conditioner can’t operate normally, please check below items before asking for service: Malfunction Causes ① It hasn’t been put through power. ② Leakage switch is tripped. ③ Voltage is too low. Air conditioner can’t be started up ④...