User`s manual
Combustion Air - Prevention of Contamination
3
SECTION I - COMBUSTION AIR - PREVENTION OF
C
ONTAMINATION
If the CHALLENGER combustion air inlet is located
in any area likely to cause or contain contamination,
or if products, which would contaminate the air can-
not be removed, the combustion air must be re-
piped  and  terminated  to  another  location.
Contaminated combustion air will damage the appli-
ance  and  its  burner  system,  resulting  in  possible
severe personal injury, death or substantial property
damage.
Do not operate a CHALLENGER  if its combustion air
inlet or the appliance is located in or near a laundry
room or pool facility.  These areas will always con-
tain hazardous contaminates.
Pool and laundry products and common household
and hobby  products often  contain fluorine  or chlo-
rine  compounds.    When  these  chemicals  pass
through the burner and vent system, they can form
strong  acids.   These  acids  can create  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  following  information.    If  contami-
nating chemicals will be present near the location of
the combustion air inlet, the installer should pipe the
combustion  air  inlet  to  another  location  per  the
CHALLENGER installation manual.
WARNING
WARNING
Potential Contaminating Products
-
Spray cans containing chloro/fluorocarbons
- Permanent Wave Solutions
- Chlorinated wax 
- Chlorine - based swimming pool chemicals and
spa cleaners
- Calcium Chloride used for thawing ice
- 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 clean-
ing solvents found in household laundry rooms
- Adhesives used to fasten building products and
other similar products
Areas likely to find 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










