Multi F Ceiling Cassette Installation Manual

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Multi F Ceiling Cassette Indoor Unit
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MUL
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Pipe Supports
Figure 24: Installing an Insert Into
a Concrete Beam.
GENERAL INSTALLATION GUIDELINES
Refrigerant Piping
Inserts and Pipe Supports
Inserts
An insert can be installed into a floor or beam before the concrete sets so that fittings such as ducts,
pipes, or suspension bolts can be added at a later time. Decide where the inserts should be placed
before support installation.
Concrete Beam
Insert
Suspension Bolt
Anti-vibration Material
Nail
Figure 25: Pipe Hanger Details.
A
B
A + B ~ 12" – 19"
Max. 12" Max. 12"
Max. 12"
Figure 26: Typical Pipe Support Location—Change
in Pipe Direction.
Max. 12"
~ 12" – 19"
Pipe supports should never touch the pipe wall; supports should be installed outside
(around) the primary pipe insulation jacket. Insulate the pipe before installing the sup-
ports. Pipe supports are field-provided and must meet local code. If local codes do not
specify pipe support spacing, install pipe supports a maximum of five (5) feet on center
for straight segments of pipe up to 3/4” outside diameter size.
Wherever the pipe changes direction, place a hanger within twelve (12) inches on one
side and within twelve to nineteen (12 to 19) inches of the bend on the other side. Sup-
port piping at indoor units as shown. Support Y-branch fittings as shown.
The pipe system must be adequately supported to avoid pipe sagging. Sagging pipes become oil traps that
lead to equipment malfunction.
Figure 27: Pipe Support at Indoor Unit.
Figure 28: Pipe Support at Y-branch Fitting.
Note: