Related Manuals for Gree NCHS1B(U)
Summary of Contents for Gree NCHS1B(U)
- Page 1 Owner's Manual Original Instructions Commercial Air Conditioners GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger Models: NCHS1B(U) NCHS2B(U) NCHS4B(U) NCHS8B(U)
- Page 2 Preface For correct installation and operation, please read this manual carefully. Before reading the manual, please note that: 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.
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Page 3: Table Of Contents
Contents 1 Safety Precautions ..........................1 2 Product Introduction ......................... 2 2.1 Names of Main Parts ........................... 2 2.2 Parameter table ............................ 3 3 Preparation before installation ......................3 3.1 Standard Accessory ..........................3 3.2 Installation Site ............................4 3.3 Selection Requirement for Communication Wire ................5 3.4 Wiring Requirment.......................... -
Page 4: Safety Precautions
(26) If anything abnormal happens (such as burning smell), please power off the unit and cut off the main power supply, and then immediately contact Gree appointed service center. If abnormality keeps going, the unit might be damaged and lead to electric shock or fire. -
Page 5: Product Introduction
GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger Gree Electric Appliances, Inc. of Zhuhai will not assume responsibility for any personal injury or property loss caused by improper installation, improper test running, and unnecessary repair or not following the instructions of this manual. -
Page 6: Parameter Table
GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger 2.2 Parameter table Model Unit NCHS1B(U) NCHS2B(U) NCHS4B(U) NCHS8B(U) Rated voltage 208/230V 208/230V 208/230V 208/230V Max. quantity of connecting indoor unit Max. branch quantity of connecting indoor unit Max. quantity of connecting indoor unit for each branch Max. -
Page 7: Installation Site
GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger The sizes of both nozzles are IDΦ22.3(7/8) and ODΦ28(1-1/8)，nozzle silencer 2 OdΦ28(1-1/8) is used for connecting the high pressure gas pipe of NCHS2B(U). The sizes of both nozzles are IDΦ22.3(7/8) and Φ22(7/8)，nozzle Φ22(7/8) silencer 1 is used for connecting the... -
Page 8: Selection Requirement For Communication Wire
GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger Fig. 3.1 ① The installation of the unit must comply with national and local safety regulations. ② Users can’t install the unit by theirselves, because the intallation quality will affect the operation directionly. After purchasing the unit, please contact with dealer. - Page 9 GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger Fig.3.2 Total length of communication wire between mode exchanger Wire size Remarks Type of wire another indoor/outdoor unit: L/m(in.) ① If the wire diameter is enlarged to 2 ×AWG16, the total communication length can reach 1500m (4921-1/4ft.).
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Page 10: Wiring Requirment
GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger 3.4 Wiring Requirment Maximum Minimum Circuit Model Power Fuse Capacity(A) Overcurrent Ampacity(A) Protection(A) NCHS1B(U) 208/230V 1Ph 60Hz NCHS2B(U) 208/230V 1Ph 60Hz NCHS4B(U) 208/230V 1Ph 60Hz 208/230V 1Ph 60Hz NCHS8B(U) ① Above circuit breaker and power cord specition are selected according to the max power (max currrect). ②... - Page 11 GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger Fig. 4.1 Fig. 4.2 Fig. 4.3...
- Page 12 GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger Due to the structure of installation space, the mode exchanger needs a maintenance port. Please reserve another maintenance port for mode exchanger. Fig. 4.4 NCHS1B(U) outline and installation dimension Unit：mm (in.) Fig.
- Page 13 GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger NCHS2B(U) outline and installation dimension Unit：mm (in.) Fig. 4.6 NCHS4B(U) outline and installation dimension Unit：mm (in.) Fig. 4.7...
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Page 14: Suspend The Mode Exchanger
GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger NCHS8B(U) outline and installation dimension Unit：mm (in.) Fig. 4.8 4.1.2 Suspend the mode exchanger （1）Drill bolt holes and install bolts 1）Stick the installation template at the installation position flatly, drill 4 holes at the installation postion basing on the installation template. - Page 15 GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger Fig. 4.11 （2）Install the mode exchanger temporarily Assemble suspension bolt on the expansion bolt, attach the hanger bracket to the suspension bolt. Be sure to fix it securely by using a nut and washer from upper and lower sides of the hanger bracket. The washer fixing plate will prevent the washer from falling.
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Page 16: Pipe Connection
GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger Fig. 4.13 Cautions for Installation (1) The mode exchanger must be installed by using hanger rod. During installation, the components must be kept vertically upright according to the indicated direction; (2) During installation, enough space shall be considered for removal of the components. The pipe shall not be jammed between the components. - Page 17 GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger Fig. 4.15 2) Take out the two silencers, insert nozzle ODΦ19(3/4) in silencer 1 to the high pressure gas pipe on the right side of converter, then insert nozzle ODΦ28(1-1/8) in silencer 2 to the low pressure gas pipe on the right side of converter, conduct welding;...
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Page 18: Notices For Welding
GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger Fig. 4.17 2) Take out the two silencers, insert nozzle ODΦ19(3/4) in silencer 1 to the high pressure gas pipe on the left side of converter, then insert nozzle ODΦ28(1-1/8) in silencer 2 to the low pressure gas pipe on the left side of converter, conduct welding;... -
Page 19: Precautions For The Installation Of Connection Pipe
GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger please adjust the flow speed of nitrogen by control valve according to the diameter of copper pipe. (4) For the unused branch pipelines, they should be sealed with copper tube to avoid leakage of refrigerant in the system. -
Page 20: Selection Of Y-Type Branch
GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger 4.2.4 Selection of Y-type branch If connect outdoor unit to multiple mode exchanger, the Y-type branch should be adopted. (1) Y-type branch Fig. 4.22 (2) Y-type branch has several pipe sections with different size, which facilitates to match with various copper pipes. - Page 21 GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger Fig.4.24 (3) There must be three fixing point for both horizontal and vertical installation of the Y-type manifold. See Fig.4.25. 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 pipe from the welding point Fixing point 3: 250mm(9-13/16in.) on the branched pipe from the welding point Unit: mm(in.)
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Page 22: Support And Protection Of Pipeline
GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger Fig. 4.26 Fig. 4.27 Fig. 4.28 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. - Page 23 GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger Fig. 4.29...
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Page 24: Size Requirement For Branch Pipe And Piping
GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger 4.2.7 Size requirement for branch pipe and piping Take the connection sketch map of single-module system for example. Fig. 4.30 4.2.7.1 Branch selection of mode exchanger (“A1, A2”) Select branch of mode exchanger as per total capacity of downstream indoor unit(s). Please refer to the following table. - Page 25 GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger Piping size between mode exchanger and downstream indoor unit (“ b、c、d、g”) Piping size between mode exchanger and downstream indoor unit Total rated capacity of downsteam indoor units: X (Btu/h) Gas pipe /mm(in.) Liquid pipe/mm(in.) Φ9.52(3/8) Φ6.35(1/4)
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Page 26: Installation And Test For Drainage Hose
GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger Connecting method is as shown in the picture: Fig. 4.32 4.2.7.4 Branch selection of indoor unit of mode exchanger (“C1”) capacity of downsteam indoor R410A refrigerant system Model units: X /Btu/h 48500＜X≤96000 Y-type branch FQ01B/A... -
Page 27: Installation Of Drainage Hose
GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger Fig. 4.33 Fig. 4.34 4.3.2 Installation of Drainage Hose (1) Insert the drainage hose into drain outlet and then bundle it with adhesive tape. (2) Tighten the pipe clamp to make the distance between screw cap and hose less than 4mm (3/16in.). -
Page 28: Cable Connection
GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger Fig. 4.37 (8) Horizontal pipe can’t be connected to the vertical pipe at the same horizontal height. Please see below fig for the connection method: NO1: Three-way connection of drainage hose joint as shown in fig. 4.38; NO2: Downelbow connection as shown in fig. -
Page 29: Connection Of Cable And Terminal Of Wiring Board
GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger ⑤ Perform wirng according to standard to ensure normal operation of air conditioner. ⑥ According to related regulation and electric appliances standard, install special branch circuit breaker. ⑦ All wiring must use pressure terminal or single wire. If connect the stranded wire to the wiring board directly, it may cause fire. -
Page 30: Connect Power Cord
GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger 5.2 Connect Power Cord NOTICE ！ The mode exchanger in the same system must be supplied power uniformly. Fig. 5.3 Remark: The maximum quantity “n” of indoor unit is decided by the capacity of indoor unit, please refer to capacity of unit. - Page 31 GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger Fig. 5.4 4) Fix the power cord with wire-fixing clamp. 5) Take off the cable cross loop that is attached to the mode exchanger, as shown in Fig.5.5~5.8. Replace with a local cable cross bushing. One-to-one Cooling and Heating Mode Exchanger Fig.5.5 One-to-two Cooling and Heating Mode Exchanger...
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Page 32: Conenct Communication Wire Of Indoor Unit And Outdoor Unit
GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger One-to-eight Cooling and Heating Mode Exchanger Fig.5.8 5.3 Conenct 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 exchanger. -
Page 33: Routine Maintenance
GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger Fig. 5.11 6 Routine Maintenance 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 platfo rm. ③... -
Page 34: Maintenance After Seasonal Use
GMV5 HR Heat Recovery Cooling and Heating Mode Exchanger 6.2 Maintenance after Seasonal Use (1) Run the air conditioenr at fan mode for half day at sunny day to dry the internal parts of unit. (2) If you don’t use the air conditioner for a long time, please cut off the power to save energy; after cutting off the power, the characters on the screen of wire docntroller will disappear.