Rheem Guardian PowerVent - ELECTRICAL SHOCK HAZARDS

Guardian PowerVent Training Manual SVC900; Rev 1
Page 4
There is a hot water scalding potential if the thermostat is set too high. The temperature of the
water in the heater is regulated by the adjustable thermostat located
inside the control enclosure.
Be sure to read and follow the warnings outlined on the warning
label. This label is located on the water heater.
To comply with safety regulations the thermostat was set at 68
0
F
before the water heater was shipped from the factory. Households
with small children, disabled, or elderly persons may require a
120
0
F or lower thermostat setting to prevent contact with HOT
water and potential scalding.
ELECTRICAL SHOCK - Troubleshooting and repairing a PowerVent water heater can expose
you to electrical shock. Some of the diagnostic procedures require the presence of 120 volt AC
electricity. Use extreme caution when performing these procedures. When replacing an
unserviceable component, turn off all power to the water heater and check for the presence of
power with a multimeter or test lamp. The pilot electrode and ignition cable carry more than
10,000 volts of electrical energy. Use extreme caution when diagnosing the PowerVent.
AUXILIARY CATCH PANS - The water heater should not be located in an area where leakage
of the tank or connections will result in damage to the area adjacent to it or to lower floors of the
structure. When such areas cannot be avoided, it is recommended that a suitable catch pan,
adequately drained, be installed under the water heater. The pan must not restrict combustion air
flow around the bottom of the heater. Auxiliary catch pans must conform to local codes.
18 INCH WATER HEATER STANDS
Because of natural air movement in a room or other enclosed space, flammable vapors can be
carried some distance from where liquids which give off flammable vapors are to be used or
stored. The open flame of the water heater’s pilot or main burner can ignite these vapors and
create a shut down condition of the water heater which will not allow the water heater to ignite
until examined by a Qualified Service Technician. If local codes require the use of a stand kit to