GREE GMV5E DC INVERTER VRF UNITS SERVICE MANUAL
43
5.5 Fitting pipe between Outdoor Unit and the First Manifold
(1) For single module system, pipe size (between outdoor unit and the first manifold) is determined
by that of outdoor unit.
Pipe size of basic outdoor module is shown as follows:
Basic Module
Pipe between ODU and the first branch of IDU
Gas Pipe(mm)
Liquid Pipe(mm)
GMV-224WM/E-X
Φ19.05
Φ9.52
GMV-280WM/E1-X
Φ22.2
Φ9.52
GMV-280WM/E-X
Φ22.2
Φ9.52
GMV-335WM/E-X
Φ25.4
Φ12.7
GMV-400WM/E-X
Φ25.4
Φ12.7
GMV-450WM/E1-X
Φ28.6
Φ12.7
GMV-450WM/E-X
Φ28.6
Φ12.7
GMV-504WM/E-X
Φ28.6
Φ15.9
GMV-560WM/E-X
Φ28.6
Φ15.9
GMV-615WM/E-X
Φ28.6
Φ15.9
(2) For multi-module unit, select appropriate manifold connected to outdoor module as per the pipe
size of basic module. Pipe size of basic outdoor module is shown as follows:
Basic Module
Pipe between module and branch of ODU
Gas Pipe(mm)
Liquid Pipe(mm)
GMV-224WM/E-X
Φ19.05
Φ9.52
GMV-280WM/E1-X
Φ22.2
Φ9.52
GMV-280WM/E-X
Φ22.2
Φ9.52
