Piping Design - Gree GMV-ND224PH/A-T Manuel D'utilisateur

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.
4.2.2 Allowable Pipe Length and Drop Height among Indoor and Outdoor Units
The first
manifold
of indoor
units
Fig.6 Allowable pipe length and drop height among indoor and outdoor units
The equivalent distance of indoor units manifold is 0.5m.
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GMV5 Compact Series VRF Outdoor Unit
室外机 Y-type manifold
Y型分歧管
Outdoor unit
Indoor unit
室内机
线控器
Wired controller
Fig.5 Schematic diagram of piping connection
ODU
IDU
Length of farthest fitting pipe: L≤120m
IDU
9