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DO
❑ DO check inlet gas pressure to ensure
that it is within the range specified on the
rating plate.
❑ DO provide adequate air for combustion
and ventilation as discussed in the Use and
Care Manual and the National Fuel Gas
Code.
❑ DO maintain proper clearances to
combustibles as specified on the rating
plate.
❑ DO allow enough time for joint cement
vapors to dissipate BEFORE applying
power to the water heater.
❑ DO ensure that the venting system
complies with the guidelines found in the
Use and Care Manual and National Fuel Gas
Code.
❑ DO contact a qualified service technician
if the main burner will not stay lit. The burner
chamber is designed to be sealed utilizing a
gasket and tamper resistant screws.
DON’T
❑ DON’T block or restrict Combustion
Air Inlet Openings or the Flammable Vapor
Sensor located around the lower portion of
the water heater jacket.
❑ DON’T block or restrict the Blower
Assembly Dilution Air holes (see diagram to
the left).
❑ DON’T remove the Burner Access
Door unless absolutely necessary. This
should only be done by a qualified service
technician. A new burner access door gasket
must be installed on any burner access door
that has been removed.
❑ DON’T install this water heater where
standing water may occur. The base of the
water heater is meant to be mounted on a dry
surface.
❑ DON’T allow cleaners, solvents, or other
materials to come into contact with the
Flammable Vapor Sensor.
❑ DON’T operate the water heater if the
sight glass or burner access door grommet is
damaged or broken (see to the left).
During Installation of this water heater...........
VACATION
VERY
HOT
WARM
ABC
COOLER
HOTTER
Burner Access
Door Grommet
Sight Glass
Heat Trap
For increased energy efficiency, some
water heaters have been supplied with
factory installed 3/4” NPT heat traps in
the hot outlet line and cold water inlet
line.
These heat traps may require a minimum
of one (1) 90° 3/4” NPT elbow and may
require an additional 90° 3/4” NPT elbow
or a 3/4” coupling depending on your
installation needs. See Illustration of
nipples and heat traps on page 33.
20
Blower Assembly Dilution Air Holes
Location of Dilution Air Holes
Flammable
Vapor Sensor