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24 | Installation
• Photo processing plants;
• Auto body shops;
• Plastic manufacturing plants;
• Furniture refinishing areas and establishments;
• Remodeling areas;
• Garages with workshops.
4 .7 .1
General venting and combustion air piping system
► The SSB boilers require an approved vent system-designed for
pressurized venting
► Vent connectors serving appliances vented by natural draft shall not be
connected to any portion of mechanical draft systems operating under
positive pressure.
► Ensure that the flue pipes and seals are not damaged.
► Use only sealing compounds (primer and glue) approved for use with
the vent material.
► Never install a barometric or a thermally controlled vent damper with
this boiler.
► Do not route the flue system piping through or inside another duct that
is used for exhausting air or other flue gases.
► The condensate trap must be primed at all times. Failure to do so may
allow combustion gases to escape into boiler room.
► The unit is to be used for either direct vent installation or for installation
using room air for combustion. When room air is used, it is necessary
to provide an adequate opening for the fresh air intake.
► You must use any of the vent/air piping methods shown in this manual.
► Be sure to locate the unit such that the vent and combustion air piping
can be routed through the building and properly terminated.
► The vent installation must be in accordance with Venting of Appliances,
of the latest edition of the National Fuel Gas Code, ANSI Z223.1/
NFPA 54 or section, Venting Systems and Air Supply for Appliances, of
the CAN/ CSA 8149.1, Natural Gas and Propane Installation code or
applicable provisions of the local, state and federal building codes.
► All vent pipes must be installed according to the vent manufacturer's
instructions.
Two pipes side wall
(Direct venting)
Concentring
vertical pipe
(Direct venting)
Fig. 25
6720818456 (2018/06) US
► The exhaust vent and the combustion air inlet lines must be supported
► Do not mix components from different systems. The vent system could
► Use of cellular core PVC and CPVC for venting system is not allowed.
a
► The exhaust pipe must be pitched a minimum of a 1/4 inch per foot
► The vent system shall be installed so as to prevent the accumulation
► Consult local and state codes pertaining to special building code and
► The boiler must be vented in accordance with the "Venting of
► Observe the listed maximum lengths of vent system, which are boiler
► To avoid moisture and frost build-up and to maintain clearances to
► Due to the high efficiency of the unit it may discharge what looks like
► The following figure shows the acceptable piping installation for
Two pipes vertical
(Direct venting)
Concentring side
wall pipe
(Direct venting)
to prevent sagging per the vent manufacturer's instructions.
fail, causing leakage of flue products into the living space. Use only
approved materials.
WARNING: Improper venting due to failure to comply with
the warnings above can result in excessive levels of carbon
monoxide!
back to the boiler (to allow drainage of condensate).
of condensate.
fire department requirements. Adhere to national code requirements.
Equipment" section of the latest edition of ANSI Z 223.1 / NFPA 54
Natural Fuel Gas Code and/or the "Venting systems and air supply for
appliances" section of the latest version of CAN/CGA B149.1 Natural
Gas and Propane Installation Code in Canada and in accordance with
all applicable local building codes.
model dependent
openings on adjacent structures, 45 ° and 90 ° elbows or tees may be
attached to the end of the vent termination pipe to direct exhaust plumes
away from the adjacent structure. The total allowable vent length,
maximum number of elbows and distance to air intake restrictions must
be adhered to.
white smoke especially when the outside air temperature is cold. This
is due to the presence of water vapor, normally present in the flue.
venting and combustion air.
Air intake side wall,
vent vertical
(Direct venting)
One pipe venting
side wall (or vertical)
(Not direct venting)
Air intake vertical,
vent side wall
(Direct venting)
SSB
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