20
to prevent nuisance boiler shutdowns. However,
boiler may be installed with vertical venting
and sidewall combustion air inlet or visa versa,
if installation conditions do not allow alternate
arrangement.
• The bottom of the vent and air intake terminal
must be at least 12" (18" in Canada) above the
normal snow line. In no case should they be less
than 12" above grade level.
• The bottom of the vent terminal must be at least
7 feet above a public walkway.
• Do not install the vent terminal directly over
windows or doors.
• The bottom of the vent terminal must be at least
3 feet above any forced air inlet located within
10 feet.
• A clearance of at least 4 feet horizontally must
be maintained between the vent terminal and
gas meters, electric meters, regulators, and relief
equipment. Do not install vent terminal over this
equipment.
• Do not locate the vent terminal under decks or
similar structures.
• Minimum twelve (12) inches vertically from any
roof overhang twelve (12) inches or less wide.
If a roof overhang width exceeds twelve (12)
inches the terminal vertical clearance must be
increased to avoid flue vapor condensation.
• Top of vent terminal must be at least 5 feet below
eaves, soffits, or overhangs. Maximum depth of
overhang is 3 ft.
• If window and/or air inlet is within four (4) feet
of an inside corner, then terminal must be at least
six (6) feet from adjoining wall of inside corner.
• Concentric - Minimum twelve (12) inches
horizontally from a building corner.
• Under certain conditions, water in the flue gas
may condense, and possibly freeze, on objects
around the terminal including on the structure
itself. If these objects are subject to damage by
flue gas condensate, they should be moved or
protected.
• If possible, install the vent and air intake
terminals on a wall away from the prevailing
wind. Reliable operation of this boiler cannot be
guaranteed if the terminal is subjected to winds
in excess of 40 mph.
• Air intake terminal must not terminate in areas
that might contain combustion air contaminates,
such as near swimming pools.
• For sidewall venting the minimum horizontal
distance between any adjacent individual module
(boiler) vent terminations is twelve (12) inches.
Increasing this distance is recommended to avoid
frost damage to building surfaces where vent
terminations are placed.
CaUTiOn
installing multiple individual module (boiler) vent
terminations too close together may result in cross
contamination and combustion product water
vapor condensation on building surfaces, where
vent termination are placed, and subsequent
frost damage. To avoid/minimize frost damage,
extend the distance from building surfaces to
vent termination end and increase the horizontal
distance between adjacent vent terminations.
• The minimum horizontal distance between any
adjacent individual module (boiler) roof vent
terminations is one (1) foot.
7. Use noncombustible ¾" pipe strap to support
horizontal runs and maintain vent location and
slope while preventing sags in pipe. Do not restrict
thermal expansion or movement of vent system.
Maximum support spacing four (4) feet. Avoid low
spots where condensate may pool. Do not penetrate
any part of the vent system with fasteners.
8. Maintain minimum clearance to combustible
materials. See Figures 2A and 2B for details.
9. Enclose vent passing through occupied or
unoccupied spaces above boiler with the material
having a fire resistance rating of at least equal to the
rating of adjoining floor or ceiling.
Note: For one or two family dwellings, fire
resistance rating requirement may not need to be
met, but is recommended.
10. Multiple individual module vertical vent pipes may
be piped through a common conduit or chase so that
one roof penetration may be made.
iV. Venting (continued)
Содержание Alpine ALP080
Страница 40: ...40 Figure 29 Condensate Trap and Drain Line V Condensate Disposal continued ...
Страница 56: ...56 VIII Electrical continued ...
Страница 57: ...57 VIII Electrical continued Figure 35 Wiring Connections Diagram ...
Страница 58: ...58 Figure 36 Ladder Diagram VIII Electrical continued ...
Страница 64: ...64 Figure 39 Modular Boiler Direct Vent Termination X Modular Installation continued ...
Страница 65: ...65 Figure 40 Modular Boiler Concentric Vent Termination X Modular Installation continued ...
Страница 131: ...131 SERVICE RECORD DATE SERVICE PERFORMED ...