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11.5.1
A
IR CONTAMINATION
Pool and laundry products and common household and hobby products often contain fluorine or chlorine com-
pounds. When these chemicals pass through the boiler, they can form strong acids. The acid can eat through the
water heater wall, causing serious damage and presenting a possible threat of flue gas spillage or water leakage
into the building.
Please read the information given in the list below, with contaminants and areas likely to contain them. If con-
taminating chemicals will be present near the location of the water heater combustion air inlet, have your in-
staller pipe the water heater combustion air and vent to another location, per this manual.
The boiler may never be located in a laundry room or pool facility, for example, these areas will always
contain hazardous contaminants. To prevent the potential of severe personal injury or death, check for
areas and products in the list below with contaminants before installing the boiler or air inlet piping.
If contaminants are found, you MUST remove contaminants permanently or relocate air inlet and vent
terminations to other areas.
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
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.
Vent connectors serving appliances vented by natural draft shall not be connected into any mechanical draft
systems operating under positive pressure.
The vent for this appliance shall not terminate:
1. over public walkways.
2. near soffit vents or crawl space vents or other areas where condensate or vapour could create a
nuisance or hazard or cause property damage. where condensate vapour could cause damage or could
be detrimental to the operation of regulators, relief valves, or other equipment.
E93.1804.014
43
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