American Water Heater GAS-FIRED COMMERCIAL WATER HEATER - Manual (Page 7)

7
Installation (Locating The Water Heater) continued-
Proper venting practices must be considered when selecting a location for this
water heater. For exact venting specifications, please consult the Venting
section, located on page 10, of these Installation and Operating Instructions.
This water heater must be located in an area where leakage of the tank, water
line connections, or the combination temperature and pressure relief valve will
not result in damage to the area adjacent to the water heater or to lower floors
of the structure. When such locations cannot be avoided, a suitable drain pan
must be installed under the water heater. The drain pan must be no greater
than 1-½ inches (3.8 cm) deep and have a minimum length and width of at
least four (4) inches (10.2 cm) measured from the jacket of the water heater.
The drain pan, as described above, can be purchased from your plumbing
professional. The drain pan must be piped to an adequate drain. The piping
must be at least 3/4 inch (1.9 cm) in diameter and pitched for proper drainage.
It is recommended that a minimum clearance of four (4) inches (10.2 cm) be
provided on the side of the water heater for servicing and maintenance of the
combination temperature and pressure relief valve.
WARNING
DO NOT ATTEMPT TO LIGHT ANY GAS APPLIANCE IF YOU ARE NOT
CERTAIN OF THE FOLLOWING:
• Liquefied petroleum gases/propane gas and natural gas have an
odorant added by the gas supplier that aids in detection of the gas.
• Most people recognize this odor as a “sulfur” or “rotten egg” smell.
• Other conditions, such as “odorant fade” can cause the odorant to
diminish in intensity, or “fade”, and not be as readily detectable.
• If you have a diminished sense of smell, or are in any way unsure of
the presence of gas, immediately contact your gas supplier from a
telephone in another building.
• Gas detectors are available. Contact your gas supplier or plumbing
professional for more information.
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