Gree GMV-PD160W/NAB-K - Installation of Refrigerant Piping; Flow Chart of Installation

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DC Inverter Multi
VRF Service Manual
4.3.3 The size of the pipe (indoor pipe) between manifold and indoor unit is same as the size of indoor pipe
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pipe from the 1st branch to this indoor unit shall be increased by one level).
Capacity of Indoor Unit Air pipe Liquid pipe
22,25,28 type ĭ ĭ
32,36,40,45,50 type ĭ ĭ
40,45,50 type ĭ ĭ
56,63,71,80,90,100,112,125,140 type ĭ ĭ
Note: When the capacity of indoor unit is less than 5KW, if the distance from the nearest manifold
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dimension.
5 INSTALLATION OF REFRIGERANT PIPING
5.1 Flow Chart of Installation
Installation of
indoor unit
Fabrication according to
piping design dimension
Vacuuming and drying
Installation of connecting
pipes
Expel with nitrogen
Welding
Purge
Airtight test