Alpine Installation, Operating, and Service Instructions

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IV. Venting
Figure 4: Location of Vent Terminal Relative to Windows, Doors, Grades, Overhangs, Meters and Forced Air
Inlets - Two-Pipe System Vent Terminal (Shown) Two-Pipe System Air Intake Terminal (Not Shown)
Asphyxiation Hazard. Failure to vent this boiler in accordance with these instructions
could cause products of combustion to enter the building resulting in severe property damage, personal
injury or death.
Do not use a barometric damper, draft hood or vent damper with this boiler.
Do not locate vent termination under a deck.
Do not locate vent termination where exposed to prevailing winds.
Do not locate combustion air termination where chlorines, chlorofluorocarbons (CFC’s), petroleum
distillates, detergents, volatile vapors or other chemicals are present. Severe boiler corrosion and failure
will result.
Use outdoor air for combustion. Do not obtain combustion air from within the building.
Use specified vent and combustion air pipe diameters. Do not reduce specified diameters of vent and
combustion air piping.
Do not interchange vent systems or materials unless otherwise specified.
Do not apply thermal insulation to vent pipe or fittings.
Moisture and ice may form on surface around vent termination. To prevent deterioration, surface must be
in good repair (sealed, painted, etc.).
Do not allow low spots in the vent where condensate may pool.
The CPVC vent materials supplied with this boiler do not comply with Natural Gas and Propane
Installation Code, CAN/CSA B149.1.S1-07 and are not approved for use in Canadian jurisdictions that
require vent systems be listed to ULC S636-2008. In these jurisdictions, vent this boiler using either
stainless steel Special Gas vent or a listed ULC S636 Class IIB venting system.
WARNING
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