Gree GC201808-III, Service Manual

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GREE GMV5 HR HEAT RECOVERY UNITS
74
1.3.8 Refrigerant pipe installation
During refrigerant pipe installation, ensure a distance above 500 mm (19.7inch) between the pipe
and the electric box of the unit for maintenance. In a case when the space is not enough, the final piping
way must be determined by the technical personnel.

When installing and moving the air conditioner to another site, be sure to make recharge
refrigerant after perfect evacuation.
If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may
malfunction and the unit may be damaged.
After selecting diameter of the refrigerant pipe to suit total capacity of the indoor unit connected after
branching, use an appropriate branch pipe set according to the pipe diameter of the indoor unit and the
installation pipe drawing.
2 PIPE INSTALLATION FOR THE
CONDENSATE WATER SYSTEM
2.1 Pipes
All of the selected condensate pipes must be consistent with local laws and regulations.
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.