Prevent Combustion Air Contamination - Weil-McLain Evergreen Pro 220 User's Information Manual

CONDENSING GAS BOILER

Prevent combustion air contamination

Air contamination
Common household and hobby products often contain
fl uorine or chlorine compounds. When these chemicals
pass through the boiler, they can form strong acids in
the vent system or boiler. These acids can eat through
the vent or boiler wall, causing serious damage and
presenting a possible threat of fl ue gas spillage into
the building.
Please read the information on this page.
If the boiler combustion air inlet is
located in any area likely to cause
contamination, or if products which
would contaminate the air cannot be
removed, you must have the com-
bustion air and vent re-piped and
terminated to another location
Contaminated combustion air will dam-
age the boiler, resulting in possible severe
personal injury, death or substantial
property damage.
4
—
U ' I
SER S NFORMATION
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.
Figure 1
Corrosive contaminants and sources
Products to avoid
Spray cans containing chloro/fl uorocarbons
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 refi nishing areas and establishments
New building construction
Manual
.
Part number 550-100-213/1220