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SlimFit
COMMERCIAL CONDENSING GAS
Venting/combustion air — general
DO NOT COMMON VENT
common vent with any other appliance. See page 22 for
checking appliances remaining on a common vent.
INSPECT VENT/AIR COMPONENTS
Inspect finished vent and air piping thoroughly to ensure
all are airtight and comply with the instructions provided
and with all requirements of applicable codes. Verify all
air openings are correctly sized, unobstructed, and free
of airborne contaminants.
Failure to provide a properly-installed vent and air system
will cause severe personal injury or death.
Code compliance
Installations must comply with local requirements and
with the National Fuel Gas Code, ANSI Z223.1 for U.S.
installations or CSA B149.1 or B149.2 for Canadian
installations.
Vent and air piping materials
Use only the materials listed in this manual (Figure 13,
page 22) for vent and air pipe and fittings.
A masonry chimney can ONLY be used as a
chase for vent and air piping
air piping must be installed as instructed in this manual
and all joints must be sealed. The chimney must be used
only as a chase for the SlimFit boiler vent/air piping. NO
OTHER appliance or fireplace can be connected to the
chimney.
The chimney must be straight, with no offsets, and the
vent and air piping materials must comply with this
instruction manual.
The chimney must be fitted with a sealed access open-
ing, through which the interior of the chimney can be
inspected.
The chimney and liner must be inspected at least once
annually to verify condition.
Failure to comply could result in severe personal injury,
death or substantial property damage.
20
—
-
FIRED WATER BOILER
Combustion air contamination
1.
.
.
2.
3. See Figure 12 for products and areas which may
— The vent and
Boiler Manual Series 2
(combustion air from boiler
room):
a. Provide combustion air openings to boiler
room as described in this manual.
b. Ensure the boiler room and combustion air
source areas are free of contaminants.
(piped combustion air):
a. Install air inlet piping for the SlimFit boiler as
described in this manual.
b. Do not terminate air piping in locations that
can allow contamination of combustion air.
cause contaminated combustion air.
Corrosive contaminants and sources
Products to avoid
Spray cans containing chloro/fluorocarbons
Permanent wave solutions
Chlorinated waxes/cleaners
Chlorine-based swimming pool chemicals
Calcium chloride used for thawing
Sodium chloride used for water softening
Refrigerant leaks
Paint or varnish removers
Hydrochloric acid/muriatic acid
Cements and glues
Antistatic fabric softeners used in clothes dryers
Chlorine-type bleaches, detergents, and cleaning
solvents found in household laundry rooms
Adhesives used to fasten building products and other
similar products
Excessive dust and dirt
Areas likely to have contaminants
Dry cleaning/laundry areas and establishments
Swimming pools
Metal fabrication plants
Beauty shops
Refrigeration repair shops
Photo processing plants
Auto body shops
Plastic manufacturing plants
Furniture refinishing areas and establishments
New building construction
Remodeling areas
Garages with workshops
Part number 550-100-162/0815
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