Heat Traps - American Water Heater PowerVent Use & Care Manual

Installing the water heater continued.....
Blower Assembly Dilution Air Holes
Location of Dilution Air Holes
24
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.
During Installation of this water heater...........
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.
Burner Access
Door Grommet
Flammable
Vapor Sensor
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.
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.
Sight Glass
❑ DON'T operate the water heater if the
sight glass or burner access door grommet is
damaged or broken (see to the left).