Gree R410A, Service Manual, Page: 86 / 217

Super Free Match
Service Manual
INSTALLATION
82
4.2.12 Installation of the Drain Pipe
1) The diameter of the drain pipe should be larger or equal to that of the refrigerant pipe (PVC pipe, outer
dimater:25mm, wall thickness ≥ 1.5mm.
2) The drain pipe should be as short as possible and with at least a 1/100 degree of slope to avoid forming
air pockets.
3) If the proper degree of slope of the drain pipe is not allowed, a lift pipe should be installed.
4) A distance 1-1.5m should be kept between the hangers to avoid the drain hose making a turn.
Right
Wrong
5) Insert the drain hose into the drain hole and tighten it with clamps.
6) Wrap the clamps with large amount of sponge for thermal insulation.
7) The drain hose inside the room also should be insulated.
4.2.13
Precautions for the Lift Pipe
The installation height of the lift pipe should be less than 850mm. It is recommended to set an inclination
angle 1°
～
2
°
for the lift pipe toward the drainage direction. If the lift pipe and the unit form a right angle, the
height of the lift pipe must be less than 800mm.