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Operating Instructions
4 Operating Instructions
This manual has safety information and
instructions to help you eliminate or reduce the risk
of accidents and injuries.
4.1 Water Heater Capacity and
Increasing Temperature Setpoint
The water heater temperature setting strongly
impacts the amount of usable hot water available
for showers and baths.
Safety regulations require a factory setting no
Ÿ
greater than 125 °F (52 °C) for all new water
heaters. Therefore, if your old water heater was
set to a hotter temperature than your new water
heater with a factory set setpoint of 125 °F (52 °C),
the new water heater may seem to provide lower
capacity than your old water heater. This can be
corrected by increasing the temperature setpoint.
If more hot water capacity is desired, increasing
Ÿ
the temperature from 125 °F to 135 °F (52 °C to 57
°C) will enable the same tank of hot water to last
about 25% longer because less hot water is
mixed in at the shower or faucet.
Increasing the water temperature setpoint may
Ÿ
improve the cleaning performance of
dishwashers and washing machines.
The user can adjust the temperature setting to
Ÿ
meet their needs. Always read and understand
the safety instructions contained in the owner's
manual before adjusting the temperature
setpoint.
If adjustment is necessary...
1. Turn off the power to the water heater.
2. Remove the jacket access panel exposing the
thermostat.
The thermostat protective cover should not be
removed.
3. Using a small screwdriver, set the thermostat dial
pointer to the desired temperature.
4. Replace the jacket access panel. Turn on the
power to the water heater.
16
Reset button
Thermostat
dial pointer
Thermostat
protective cover
4.2 Mixing Valves
Mixing valves for reducing point-of-use water
Ÿ
temperature by mixing hot and cold water in
branch water lines are commercially available.
Contact a licensed plumber or the local plumbing
authority for further information.
4.3 Extended Shutdown Periods
If the water heater is to remain idle for an extended
period of time, the power and water to the
appliance should be turned off and the water
heater drained to conserve energy and prevent a
buildup of dangerous hydrogen gas. This unit has
no power button, power can only be shut off at the
circuit breaker or disconnect switch.
The water heater and piping should be drained if
they might be subjected to freezing temperatures.
After a long shutdown period, the water heater's
operation and controls should be checked by
qualified service personnel. Make certain the water
heater is completely filled again before placing it in
operation.
NOTICE
Refer to the Hydrogen Gas Caution in the
Operating Instructions (see Important safety
information).
150°F
90°F
125°F
TURNOFF
POWER
BEFORE
SERVICING
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