Installation / Operation Instruction Manual

7
Installation (Locating the Water Heater) cont.-
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 have a minimum
length and width of at least 4 in (10.2 cm) greater than the diameter of the
water heater and must not restrict proper combustion air flow to 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 in (1.9 cm) in diameter and pitched for proper
drainage.
It is recommended that a minimum clearance of 4 in (10.2 cm) be provided on
the side of the water heater for servicing and maintenance of the combination
temperature and pressure relief valve.
Horizontal Installation:
In a horizontal application, it is important that condensate not be allowed to
buildup in the exhaust vent pipe. To prevent this from happening the pipe
should be installed with a slight upward slope so the condensate will run back
toward the water heater. The vent system should be supported every 5 feet
(1.5 m) of vertical run and every 3 feet (1 m) of horizontal run of vent pipe
length. The venting system should have horizontal runs sloping upwards not
less than ¼ inch (21 mm/m) from the appliance to the vent terminal.
NOTICE
Use of cellular core PVC (ASTM F891). Cellular core CPVC, or Radel®
(polyphenylsulfone) in non-metallic venting systems is prohibited, and covering
non-metallic venting with thermal insulation is prohibited.
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 neighbor’s
telephone.
• Gas detectors are available. Contact your gas supplier or plumbing
professional for more information.