Gree GUHN48NM3A1O - Page 52

49
U-MATCH Air
Conditioners
Service Manual
4. Install the hanger onto the indoor unit as Figure 1-1-2 and Figure 1-1-3 shows.
5. Install the indoor unit at the ceiling as Figure 1-1-5shows.
I
Nut
Screw
Air Intake
I Enlargement
Air Supply
Hanger
Figure 1-1-5
6. 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.

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avoid the vibration of it. Consult with the user or a construction company for details.
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In case the strength of ceiling is not enough, use angle iron sections to set up a beam support. Place the
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7. Level detection of indoor unit
After installation of indoor unit, level detection for the complete unit must be done to ensure levelness, as
shown in Fig. 1-1-6.
Air Supply
Air Intake
i
Condensate Drainpipe
Level Instrument
Condensate Drainpipe
Enlarged View
As the inside of the unit is in the negative
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EDFNZDWHUHOERZ7KHUHTXLUHPHQWVLV
A=B
3PP)
P is the absolute pressure inside the unit.
The unit of the pressure is Pa.
Figure 1-1-6