HEV-S
ERIES
I
NSTALLATION
, O
PERATION
AND
S
ERVICE
M
ANUAL
54
8.16 Outside Combustion Air Supply
IMPORTANT: If the building has a slight negative
pressure or corrosive contaminants, such as
halogenated hydrocarbons, are present in the air, an
outside combustion air supply to the heater is
required. Seal all combustion air pipe joints.
Use of optional outside combustion air is not
recommended with unvented heaters.
The air supply duct may have to be insulated to
prevent condensation on the outer surface. The
outside air terminal must not be more than 1' (31 cm)
above the vent termination while maintaining a
minimum distance of 3' (93 cm) for both vertical and
horizontal venting.
8.16.1 Length Requirements
.
8.16.2 Vertical Outside Air Supply for Single Heater Installation
Description
Part Number
Vent Cap, Metalbestos - 4" (10 cm)
90502300
Summary of Contents for VANTAGE HEV-100
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Page 25: ...SECTION 6 HEATER INSTALLATION 21 FIGURE 20 Linear Heater Layout Overview Continued ...
Page 41: ...SECTION 7 OPTIONAL HEATER ACCESSORIES 37 FIGURE 30 U Tube Heater Layout Overview Continued ...
Page 72: ...HEV SERIES INSTALLATION OPERATION AND SERVICE MANUAL 68 ...
Page 73: ...SECTION12 TROUBLESHOOTING 69 12 2 Manifold Gas Pressure Setting Side View of Heater ...
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