HTP PHE130-55 - Domestic Water Piping; Temperature and Pressure Relief Valve for DHW; Domestic Hot Water Expansion Tank; Domestic Water Piping Installation

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Failure to provide an adequate supply of fresh combustion air can cause poisonous flue gases to enter
living space, which could result in severe personal injury or death. NOTE: To prevent combustion air
contamination, see Table 1.
F. PREVENT COMBUSTION AIR CONTAMINATION
Install intake air piping for the heater as described in the Venting section. Do not terminate exhaust in
locations that can allow contamination of intake air.
You must pipe outside air to the heater air intake. Ensure that the intake air will not contain any of the
contaminants below. Contaminated air will damage the heater, resulting in possible substantial property
damage, severe personal injury, or death. For example, do not pipe intake air vent near a swimming pool.
Also, avoid areas subject to exhaust fumes from laundry facilities. These areas always contain
contaminants.
PRODUCTS TO AVOID
AREAS LIKELY TO HAVE CONTAMINANTS
Spray cans containing fluorocarbons
Dry cleaning/laundry areas and establishments
Permanent wave solutions
Swimming pools
Chlorinated waxes/cleaners
Metal fabrication plants
Chlorine-based swimming pool chemicals
Beauty shops
Calcium chloride used for thawing
Refrigeration repair shops
Sodium chloride used for water softening
Photo processing plants
Refrigerant leaks
Auto body shops
Paint or varnish removers
Plastic manufacturing plants
Hydrochloric or Muriatic acid
Furniture refinishing areas and establishments
Cements and glues
New building construction
Antistatic fabric softeners used in clothes dryers
Remodeling areas
Chlorine-type bleaches, laundry detergents, and
cleaning solvents
Garages and workshops
Adhesives used to fasten building products
Table 1 – Contaminant Table
G. REMOVING A HEATER FROM A COMMON VENT SYSTEM
Do not install the heater into a common vent with any other appliance. This will cause flue gas spillage or
appliance malfunction, resulting in possible substantial property damage, severe personal injury, or death.
Failure to follow all instructions can result in flue gas spillage and carbon monoxide emissions, causing
severe personal injury or death.
When removing an existing heater, follow the steps below.
NOTE: DAMAGE TO THE HEATER CAUSED BY EXPOSURE TO CORROSIVE VAPORS IS NOT
COVERED BY WARRANTY. (Refer to the limited warranty for complete terms and conditions).