User Guide

4
2. Combustion Air - Prevention of Contamination
Section II: Combustion Air - Prevention of Con-
tamination
2
.1 Combustion Air Contamination
If the CHALLENGER combustion air inlet is located in
any area likely to cause or contain contamination, or if
products which could contaminate the air cannot be re-
moved, the combustion air must be repiped and termi-
nated to another location. Contaminated combustion
air will damage the appliance and the burner system
and can result in substantial property damage, serious
injury, or death.
Do not operate a CHALLENGER if the combustion air
inlet is located near a laundry room or pool facility.
These areas will always contain hazardous contami-
nants.
Pool, laundry, common household, and hobby products
often contain fluorine or chlorine compounds. When
these chemicals pass through the burner and vent sys-
tem, they can form strong acids. These acids can cre-
ate corrosion of the heat exchanger, burner
components, and vent system, causing serious damage
and presenting a possible threat of flue gas spillage or
water leakage into the surrounding area.
Please read the information listed below. If contami-
nating chemicals are located near the area of the com-
bustion air inlet, the installer should pipe the
combustion air inlet to an area free of these chemicals
per the CHALLENGER installation manual.
WARNING
WARNING
2.1.1 Potential Contaminating Products
Spray cans containing chloro/fluorocarbons•
P
ermanent Wave Solutions•
C
hlorinated wax •
Chlorine - based swimming pool chemicals / cleaners•
Calcium Chloride used for thawing ice•
S
odium 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
2.1.2 Areas Likely to Contain these Products
Dry cleaning / laundry areas and establishments•
Beauty salons•
Metal fabrication shops•
Swimming pools and health spas•
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•