Heat Traps - Rheem Power Direct Vent Series Use & Care Manual

Heat Traps

For increased energy efficiency, some
water heaters have been supplied with fac-
tory 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 maintain proper clearances to com-
❑
bustibles 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 com-
❑
plies with the guidelines found in the Use
and Care Manual and National Fuel Gas
Code.
❑ DO contact a qualified service techni-
cian if the main burner will not stay lit. The
burner chamber is designed to be sealed uti-
lizing a gasket and tamper resistant screws.
Sight Glass
Burner Access
Door Grommet VACATION A B C
WARM VERY
HOT
COOLER HOTTER
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 35.
DON'T
❑ DON'T block or restrict the Flammable
Vapor Sensor located around the lower por-
tion of the water heater jacket.
DON'T remove the Burner Access Door
❑
unless absolutely necessary. This should
only be done by a qualified service techni-
cian. 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).
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