Carrier 45MBCAQ Installation Instructions Manual page 14

Split-type four-way cassette indoor unit ductless system
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45MBCAQ: Installation Instructions
4. Install the four suspension bolts.
5. Mount the indoor unit. You will need two people to lift and secure it. Insert suspension bolts into the unit's hanging holes. Fasten them using the
included washers and nuts.
NOTE: The bottom of the unit should be 0.4-0.98in (10-25mm) higher than the ceiling board. Generally, L (indicated in Figure 10) should be half the length
of the suspension bolt or long enough to prevent the nuts from coming off.
NOTE: Ensure that the indoor unit is level. The unit is equipped with a built-in drain pump and float switch. If the unit is tilted against the direction of
condensate flows (the drainpipe side is raised), the float switch may malfunction and cause water to leak.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Fig. 8 —Install Ceiling Hook and Bolt
Fig. 9 —Tighten Suspension Bolts
Fig. 10 —Mount the Indoor Unit
CAUTION
Ensure that the unit is completely level. Improper installation can
cause the drain pipe to back up into the unit or water leakage.
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