Minimum Clearances To Combustible Materials; Minimum Clearances To Combustibles Materials For Air Return Duct; Minimum Clearances To Combustibles Materials For Hot Air Plenum - CADDY PF01302 Installation And Operating Instructions Manual

9.7.1. MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS

Return air
plenum
Return air
duct

9.7.2. MINIMUM CLEARANCES TO COMBUSTIBLES MATERIALS FOR AIR RETURN DUCT

The return air duct should be at least equal in size to the air return plenum. The return air duct can be installed at zero
clearance to combustibles.

9.7.3. MINIMUM CLEARANCES TO COMBUSTIBLES MATERIALS FOR HOT AIR PLENUM

The hot air duct can be passed through a wall with a clearance of three (3) inches around for the first five (5) feet of
duct (including the plenum). After, it can be installed at zero clearance to combustibles.
Hot air plenum
MINIMUM CLEARANCES
A 24" (610 mm)
B 18" (457 mm)
C 3" (76 mm)
D 0" (0 mm)
REQUIRED MEASUREMENTS
E 60" (1 524 mm)
F 18" (457 mm)
G 7" (178 mm)
Hot air duct
H 8" (203 mm)
I 24" (610 mm)
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