Bradford White D-4-504S6FSX - Manual (Page 12)

12
Venting continued-
This water heater must be connected to a lined masonry chimney or venting
system approved by local codes or ordinances. The vent connector used to
attach the draft hood outlet to the chimney or approved vent must be of the
same diameter as the draft hood outlet or larger. For proper venting in certain
installations, a larger vent connector may be needed. Consult venting tables
in the National Fuel Gas Code (ANSI Z223.1-Latest Edition), and the Natural
Gas and Propane Installation Codes, CAN/CGA (B149.1 or B149.2-Latest
Editions) or local code officials for proper application for your area.
Combustion Air Supply
WARNING
Liquefied petroleum gases/propane gas is heavier than air and will remain at
floor level if there is a leak. Basements, crawl spaces, closets, and areas
below ground level will serve as pockets for accumulation of leaking gas.
Before lighting, smell all around the water heater area for gas. Be sure to
smell next to the floor.
IF YOU SMELL GAS:
 Do not try to light any appliance.
 Do not touch any electric switch; do not use any telephone in your
building.
 Immediately call your gas supplier from a neighbor’s telephone. Follow
the gas supplier’s instructions.
 If you cannot reach your gas supplier, call the fire department.
DO NOT OPERATE APPLIANCE UNTIL LEAKAGE IS CORRECTED!
Provide adequate air for combustion and ventilation. An insufficient supply of
air will cause recirculation of combustion products resulting in air
contamination that may be hazardous to life. Such a condition often will result
in a yellow, luminous burner flame, causing carboning or sooting of the
combustion chamber, burners, and flue tubes with possible damage to the
water heater.
When an exhaust fan is installed in the same room with a heater, sufficient
openings for air must be provided in the walls. Undersized openings will
cause air to be drawn into the room through the chimney, causing
recirculation of combustion products.
WARNING
The flow of combustion and ventilating air must not be obstructed.
Do not block or in any way restrict jacket air inlet slots located at the bottom
front of the water heater.