IM 1068 / Page 9 of 32
Cooling Chassis Installation
1. Remove the cooling chassis from the shipping carton and
examine it for damage. Do not rest it on end. Check the
plate rating against the power supply to make sure that
they are the same (Figure 11). Also check the size
(capacity) to make sure that it coincides with the heat
section; e.g., Size 009 cooling.
2. The cooling chassis is supplied with an internal spring
mounted compressor. The hold-down nuts on the
compressor mountings should not be loosened.
3. Manually spin the condenser fan wheel to be sure that
there is no interference or looseness. If it is loose, tighten
the setscrew located over the center of the at on the
motor shaft. Do not lubricate condenser fan motor at time
of installation.
Figure 11: Cooling Chassis Details
4. Slide the chassis into the wall box. Chassis must be
square in the box so that all the rubber seals are pressed
tight. Check bottom seal between chassis and wall box to
ensure that it has not been unseated from slot during
chassis installation.
5. For unit size 019, there is a “J” bolt on each side
that holds the chassis in place. Thread the “J” bolts
through the holes supplied in the chassis and tighten until
the chassis is rmly seated in the wall box.
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