Heatilator • Caliber Multi-Sided B-Vent • 4002-094 Rev H • 11/07
15
7
7
Appliance Preparation
Sharp Edges
• Wear protective gloves
and safety glasses during
installation.
CAUTION
Fire Risk
Asphyxiation Risk
Maintain vent clearance to combustibles as
speci
fi
ed.
• Do not pack air space with insulation or
other materials.
• National building codes recommend
using attic shield to keep loose materials/
insulation from contacting vent.
Failure to keep insulation or other materials
away from vent pipe may cause
fi
re.
WARNING
Fire Risk
Asphyxiation Risk
Do not draw outside combustion air from:.
• Wall,
fl
oor or ceiling cavity.
• Enclosed space such as an attic or
garage.
• Close proximity to exhaust vents or
chimneys.
Fumes or odor may result.
WARNING
Risk of Smoke Spillage
Outside air inlet must be located to prevent blockage
from:
• Leaves
• Snow/ice
• Other
debris
Blockage may cause combustion air starvation.
CAUTION
Outside
Air Shield
2 Wire Ties
Flexible Duct
(not supplied)
Outside
Air Collar
Figure 7.1 Outside Air Installation
A. Installing Outside Air Kit Damper Assembly
This appliance will operate correctly only if adequate ventila-
tion is provided to allow proper draft to the system.
An outside air kit is available as an optional feature with this
appliance. An outside air kit helps to decrease the amount
of room air taken by utilizing outside air for combustion. We
strongly recommend that it be installed.
• The outside air kit can only be installed on the left side of
the appliance.
• Refer to the installation instructions provided with the
kit.
Note:
The outside air kit inlet thimble should be positioned
in a manner that will not allow snow, leaves, etc. to block
the inlet. A 3 ft. (.91 m) minimum height difference must be
maintained from the top of the uppermost chimney section
to the outside combustion air inlet. Reference Section 2.