Prevent Combustion Air Contamination - Weil-McLain GV90+ User's Information Manual

GV90+ Series 2
Prevent combustion air contamination —
Air contamination
Common household and hobby products often contain
fluorine or chlorine compounds. When these chemicals
pass through the boiler, they can form strong acids in
the vent system or boiler. The acid can eat through
the vent or boiler wall, causing serious damage and
presenting a possible threat of flue gas spillage into
the building.
Please read the information below. If the contaminating
chemicals will be present, have your installer pipe the
boiler air from outside per the Boiler manual.
If the boiler is installed in
likely to cause contamination
products which would contaminate the
air cannot be removed, you must
combustion air to the boiler
take. Contaminated combustion air will
damage the boiler and vent system, re-
sulting in possible severe personal injury,
death or substantial property damage.
Do not operate a GV90+ boiler in
a laundry room or pool facility
example, without using ducted outside
air. These areas will always contain con-
taminants.
4
-
gas fired water boiler
any area
, or if
pipe
air in-
, for
— User's Information Manual
Combustion air contamination:
Ensure that the combustion air will not contain any of
the contaminants in Figure 1
Combustion air supply openings or intake terminations
must NOT be near a swimming pool, for example.
Avoid areas subject to exhaust fumes from laundry facilities.
These areas will always contain contaminants.
Corrosive contaminants and sources
Figure 1
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
.
Part number 550-142-803/0712