Instructions / Assembly

9
There is one thermostat that controls all heating ele-
ments. It is located behind the removable pad of glass
fiber insulation in the control compartment.
160°F (71°C) MODELS:
Adjust thermostat dial pointer, with a small screwdriver,
to the desired water temperature setting (refer to Fig.
4). THERMOSTAT PROTECTIVE COVER SHOULD NOT
BE REMOVED. The thermostat is adjustable from a
“LOW” to “HI” setting. An approximate water tem-
perature of 130° F (54°C) is accomplished when the
temperature dial pointer is in the “MED” position. Each
mark above and below the “MED” position indicates an
approximate 10° F (6°C) change in water temperature.
Replace insulation, close access door and turn power
”ON”, and the water heater is operational.
NOTE: A thermometer(s) installed at or near the outlet
of the water heater and/or storage tank(s) will result in
the most accurate outlet water temperature measure-
ment.
180°F (82°C) GALLON MODELS:
Adjust thermostat dial pointer, with a small screwdriver,
to the desired water temperature setting (refer to Fig.
4). THERMOSTAT PROTECTIVE COVER SHOULD NOT
BE REMOVED. The thermostat is adjustable from a
“LOW” to “HI” setting. An approximate water tem-
perature of 150° F (66°C) is accomplished when the
temperature dial pointer is in the “MED” position. Each
mark above and below the “MED” position indicates an
approximate 10° F (6°C) change in water temperature.
Replace insulation, close access door and turn power
”ON”, and the water heater is operational.
NOTE: A thermometer(s) installed at or near the outlet
of the water heater and/or storage tank(s) will result in
the most accurate outlet water temperature settings.
IMMERSION THERMOSTAT MODELS:
NOTE: On Immersion Thermostat models, it is notnec-
essary to turn power OFF before adjusting thetempera-
ture setting of the thermostat(s).
The adjustable thermostat dial(s) on these models is-
located on the exterior of the cabinet. A 140° F (60°C)
setting is at the diamond mark between “WARM” and
“HOT” on the dial (refer to Fig. 4). The range of set-
tings are from an ”OFF” position, indicated by the bar
on dial, to 190° F (88°C) at the “VERY” position. This
higher setting isprovided to insure the required 180° F
(82°C) minimum for dishwasher rinse applications and
other commercial purposes. The ”OFF” position can be
used as a convenient means of conserving energy dur-
ing periods of non-use.
2. HIGH TEMPERATURE LIMIT CONTROL — Both
Surface and Immersion Thermostat models are
equipped with a manual reset high temperature limit-
ing control(s). If for any reason the water temperature
becomes excessively high, The High Temperature Limit
Control breaks the power to the heating elements.
Once this control opens, it must be manually reset.
The cause of the high temperature condition must be in-
vestigated by qualified service personnel and corrective
action taken before placing the water heater in service
again.
TO RESET HIGH TEMPERATURE LIMIT CONTROL:
Be certain the power supply to the water heater is turned
“OFF” before attempting to reset the Limit Control.
NOTE: Allow the water in the tank to cool before reset-
ting the High Temperature Limit Control.
On Surface Mounted Thermostat models, press the red
“RESET” button located above the thermostat (refer to
Fig. 4). The thermostat protective cover SHOULD NOT
be removed.
On Immersion Thermostat models, the reset button is
located on the outside of the control enclosure near
the thermostat(s) dial(s).
3. EMERGENCY INSTRUCTIONS —
If the water heater has been subjected to flood, fire, or
physical damage, turn off power and water to water heat-
er. Do not operate the water heater again until it has been
thoroughly checked by qualified service personnel.
4. LONG TIME SHUT-DOWN — If the water heater is to
remain idle for an extended period of time (60 days or
more), the power and water to the water heater should
be turned off to conserve energy. The water heater and
piping should be drained if they might be subjected
to freezing temperatures. It is recommended that
the water heater’s operation and controls should be
checked by qualified service personnel, before putting
it in service again.
Make certain the water heater is completely filled before
again placing it in operation.
NOTE: Refer to “Hydrogen Gas Caution” in Safety Pre-
cautions Section on page 8.
5. DRAINING HEATER —
Be sure that the power to water heater is shut off before
draining water.
The water drained from the tank may be hot enough to
present a SCALD HAZARD and should be directed to a
suitable drain to prevent injury or damage.
In order to drain water heater, turn off cold water sup-
ply, then it is necessary to open a hot water faucet or
lift the handle on the relief valve to admit air to the
tank. Attach a garden hose to the drain valve on the
water heater and direct the stream of water to a drain
where it will do no damage.
Operation
CAUTION
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