Johnson Controls R SERIES Installation And Maintenance Manual page 10

drawing of the indoor unit for the distance between the holes. Refer to Figure 3-1-1 for the installation of the
expansion bolt.
Hook
Install the hanger onto the indoor unit as Figure 3-1-2 and Figure 3-1-3 shows.
Install the indoor unit at the ceiling as Figure 3-1-4 shows.
Air Intake
Precautions for unfavorable installation:
The preparation of all pipes (connecting pipes and condensate pipes) and cables (connecting lines of
wire zone controller, indoor unit and outdoor unit) must be ready before the installation, so as to achieve
smooth installation.
Drill an opening on the ceiling depending on the ceiling type. Providing additional support may be required to
prevent vibration and ensure the evenness of the ceiling. Consult with the user or a construction company
for advice.
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 secure 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.
Figure 3-1-1
Figure 3-1-3
I
Figure 3-1-4
Air-conditioning Unit
Ceiling-mount
Screw
Hanger
Figure 3-1-2
Screw
Hanger
Nut
Air Supply
2
Screw
Nut
Nut
"I" Detail