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Service and Maintenance (cont'd)
Thermostat Adjustments Temperature-Pressure Relief
Valve Operation
If the upper thermostat is adjusted above the factory preset
point of 1200F (Hot), it cannot be set higher than the lower
The temperature-pressure relief valve must be manually oper-
thermostat setting. Read all warnings in the "Temperature ated at least once a year.
Regulation" section before proceeding.
UPPERTHERMOSTAT /TEMPERATURE-PRESSURE
/ RELIEFVALVE
• /
1. Turn "OFF" the electric power to the water heater at the _ __
junction box.
AWARNING
HAZARD OF ELECTRICAL SHOCK! Before removin(
any access panels or servicing the water heater
make sure the electrical supply to the water heate DISCHARGEPIPE
is turned "OFF". Failure to do this could result in
DEATH, SERIOUS BODILY INJURY, OR PROPERTY
DAMAGE, AWARNING
2. Take offthe access panel and fold away the insulation. The temperature-pressure relief valve must be
manually operatedat least once a year. Caution
should be taken to ensure that (1) no one is in front
3. The slotted adjustment (using a screwdriver) can be turned of or around the outlet of the temperature-pres-
clockwise (/'_"0 to increase the temperature setting or sure relief valve discharge line, and (2) the water
manually discharged will not cause any property
counter clockwise (¢f_ to decrease the temperature damage or bodi y njury The water may be
setting, extremely hot. '
If after manually operating the valve, it fails to
completely reset and continues to release water,
4. Fold the insulation back in place and replace the access immediately close the cold water inlet to the water
panel, heater, follow the draining instructions, and
replace the temperature-pressure relief valve with
5. Turn "ON" the power supply, a new one.
Failure to install and maintain a new properly listed tempera-
LOWER THERMOSTAT
ture-pressure relief valve will release the manufacturer from
The adjustment dial can be turned clockwise (_) to any claim which might result from excessive temperature or
increase the temperature setting or counter clockwise pressure.
(_"_) to decrease the temperature setting.
AWARNING ]
If the temperature-pressure relief valve on the
appliance weeps or discharges periodically, this[
may be due to thermal expansion. Your water I
heater may have a check valve installed in the
water line or a water meter with a check valve. Call [
Maytacj Customer Service at 1-800-788-8899 for an F
authorized servicer. Do not plug the temperature-
pressurerelief valve. I
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