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CONTAMINATION PREVENTION
The combustion air supply must not be susceptible to contami-
nation sources, whether the combustion air comes from the
interior or exterior of the building. Contaminated air can cause
c
orrosion or other damage to the heat exchanger and compo-
nents of the boiler, causing failure of these parts or unsafe
operation.
Below is a list of products and areas which may cause
contaminated combustion air:
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
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
Bobcat Models B-120A and B-200A
5
Figure 4a. Wall bracket securement
Figure 4b. Mounting boiler on the wall