Gree GMV5 Series, Service Manual

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GREE Photovoltaic Direct-driven Inverter Multi VRF Units
59
heating mode for 24 hours: (1) Power off all units. (2) Turn off the two stop valves of the liquid pipe. (3)
Remove the drier filter. (4) Short connect with a copper pipe with the same caliber and vacuumize the
pipe. (5) Turn on the two stop valves and keep normal running.
6.2 Pipe Installation for the Condensate Water System
6.2.1 Pipes
All of the selected condensate pipes must be consistent with local laws and regulations.
6.2.2 Requirements on Installation
(1) It is not allowed to connect the condensate drain pipe into waste pipe or other pipelines which
are likely to produce corrosive or peculiar smell to prevent the smell from entering indoors or
corrupt the unit.
(2) It is not allowed to connect the condensate drain pipe into rain pipe to prevent rain water from
pouring in and cause property loss or personal injury.
(3) Condensate drain pipe should be connected into special drain system for air conditioner.
(4) 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.
(5) Distance between Hangers
External Diameter of the Pipe
mm Φ≤25.4
31.8
＞
Φ
＞
25.4
Φ≥31.8
In. Φ≤1
1-1/4
＞
Φ
＞
1
Φ≥1 -1/4
Distance between Horizontal Pipes
mm 800 1000 1500
In. 31-1/2 39-3/8 59
Distance between Vertical Pipes
mm 1500 2000
In. 59 78-3/4
There are at least two hangers for each vertical pipe.
(6) 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.
(7) When connecting three-way pipes, the two-way straight pipes must be laid on the same slope,
as shown in the following figures.