Gree U-MATCH Series Service Manual page 55

U-Match Series DC Inverter Service Manual
Install the hanger onto the indoor unit as Figure 3-1-2 shows.
Install the indoor unit at the ceiling as Figure Figure 3-1-3 shows.
Air Intake
Precautions for unfavorable installation:
The preparation of all pipes (connecting pipes and drainage pipes) and cables (connecting lines of
wire controller, indoor unit and outdoor unit) must be ready before the installation, so as to achieve
smooth installation.
Drill an opening on the ceiling. Maybe it is required to support the ceiling to ensure the evenness of
it and avoid the vibration of it. Consult with the user or a construction company for details.
In case the strength of ceiling is not enough, use angle iron sections to set up a beam support.
Place the unit at the beam and fix it.
Level inspection of the indoor unit
After the indoor unit is installed, it is required to check the level of the whole unit. The unit must be
placed horizontally, but the condensate pipe shall be installed obliquely, so as to facilitate the drainage of
condensate.
Condensate
Drainpipes
Figure 3-1-1
I
Figure 3-1-3
Level Instrument
Air Intake
Enlarged View
Condensate Drainpipe
Figure 3-1-4
Air-conditioning Unit
Ceiling-mount
Screw
Hanger
Figure 3-1-2
Screw
Hanger
Nut
Air Supply
Air Supply
As the inside of the unit is in the negative
pressure status, it is required to set up a
backwater elbow. The requirements is:
A=B≥(0.145P/10000+20)/25.4(inch)
P is the absolute pressure inside the unit.
The unit of the pressure is psig.
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