Gree GMV-224WM/B-X, Service Manual

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GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
62
Stop valve equipped
to the outdoor unit
for the gas pipe
Stop valve equipped
to the outdoor unit for
the liquid pipe
Gas pipe filter
Added stop valve
for the gas pipe
Drier filter for the liquid pipe
Added stop valve
for the liquid pipe
II. Pipe Installation for the Condensate Water
System
1. Pipes
Generally, U-PVC water supply pipes bonded with special glue are adopted as condensate water
pipes. PP-R, PP-C, and hot galvanized steel pipes can also be adopted. Aluminium plastic compound
pipes cannot be used.
2. Requirements on Installation
2.1 Determine the direction and elevation of a condensate water pipe before installing it. Avoid
overlapping it with other pipes to ensure straight inclination. The clamp of the pipe hanger is fixed
outside the insulation layer. The height of the clamp can be adjusted.
2.2 Distance between Hangers
External Diameter of
the Pipe (mm)
Φ≤25 32>Φ≥25 Φ≥32
Distance between
Horizontal Pipes (mm)
800 1000 1500
Distance between
Vertical Pipes (mm)
1500 2000
There are at least two hangers for each vertical pipe.
2.3 The inclination degree of the condensate water pipe must be above 1% and that of the main pipe
cannot be lower than 0.3%. Adverse slopes are not allowed.
2.4 When connecting three-way pipes, the two-way straight pipes must be laid on the same slope, as
shown in the following figures.
2.5 The condensate water pipe cannot be tied with the refrigerant pipe.
2.6 A ventilation hole must be provided on the top of the drain pipe to ensure smoother discharge of
condensate water.