General Plenum And Ducting - Minimum Clearance To Combustibles; Hmf150 Shielding Specifications - Napoleon HYBRID 150 Instructions D'installation Et D'utilisation

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6.3 GENERAL PLENUM AND DUCTING - MINIMUM CLEARANCE TO
COMBUSTIBLES
EN
All plenum and ducting clearances must satisfy specifi cation set forth in CAN/CSA-B365-10 and NFPA211.
CLEARANCE
TO
COMBUSTIBLES
TOP
BOTTOM/
SIDES
* FOR HMF150 ONLY. Clearance can be reduced from 6" (152mm) to a minimum of 3" (76mm), providing that shielding with the fol-
lowing specifi cations is employed. Ceiling height can be reduced to 6ft. (1.8m) when shielding specifi cations are met.
* FOR HMF200 ONLY. Minimum ceiling height for installation can be reduced to 6' 9" (2.06m) provided shielding specifi cations in Sec-
tion 6.3.2 are employed and a clearance of 6" (152mm) is maintained between the top surface of the plenum and initial 6ft. (1.8m) of
duct run.

6.3.1 HMF150 SHIELDING SPECIFICATIONS

○ Shield must be constructed of sheet metal with a minimum thickness of 26 gauge.
○ Shield to be spaced out from combustible surface between 7/8" (22mm) and 1" (25mm), using non-combus-
tible spacers (air gap between combustible surface and shield must be maintained).
○ Shield dimensions and locations must protect the area illustrated in the diagram below.
1" MIN
(25mm)
4" MIN
(102mm)
W415-1504 / B / 11.30.16
SECTION
A B C
6" (152mm) * 6" (152mm) 1" (25mm)
18" (457mm) 6" (152mm) 1" (25mm)
NOTE:
The clearance of
return air ducts,
including main
ducts and
branch ducts,
from combus-
tible materials
within 6 ft.
(1.8m) of the
plenum shall
be not less
than 3" (75mm)
COMBUSTIBLE SURFACE
SHIELD
PLENUM
IMPORTANT:
Minimum ceiling heights required: • HMF150 6ft 3in (1.9m)
CLEARANCE TO COMBUSTIBLES
1
6" (152mm)
A
2
40"
(1016mm)
72"
(1829mm)
1 See shielding specifica-
tions below for reduced
clearances and/or ceiling
height.
2 See plenum diagram
below for minimum dimen-
sions.
3" MIN
(76mm)
PLENUM
4" MIN
(102mm)
• HMF200 7ft (2.13m)
1"
(25mm)
B
C
>72"
(1829mm)
*Drawing not to scale.
COMBUSTIBLE SURFACE
SHIELD
72" MIN
(1829mm)
*Drawing not to scale.
1" MIN
(25mm)