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TEMPERATURE ADJUSTMENT
APPROXIMATE TIME/TEMPERATURE
RELATIONSHIPS IN SCALDS
120°F (49°C) More than 5 minutes
125°F (52°C) 1½ to 2 minutes
130°F (54°C) About 30 seconds
135°F (57°C) About 10 seconds
140°F (60°C) Less than 5 seconds
145°F (63°C) Less than 3 seconds
150°F (66°C) About 1½ seconds
155°F (68°C) About 1 second
SCALDING WARNING
ASSE APPROVED MIXING DEVICE MUST BE INSTALLED
TO PROVIDE PROTECTION FROM SCALDING
This water heater can deliver scalding temperature water at any faucet in the system if installed without installing the
supplied ASSE mixing device. By setting the thermostat on this water heater to obtain an increased water temperature
without properly installing the supplied mixing device, you may create the potential for scald injury. To protect against
injury, the supplied ASSE approved mixing device (a device to limit the temperature of water to protect against scald injury
via mixing hot and cold water supply) must be properly installed in the water system. This valve will reduce point of
discharge temperature in branch supply lines.
CAUTION
This water heater, when set at a lower temperature setting is not capable of producing hot water of sufficient temperature for
sanitizing purposes.
This water heater is equipped with an energy cut out device to prevent overheating. Should overheating occur or the gas
supply fails to shut off, turn off the control panel power switch to the appliance and call a qualified service agency.
NOTICE
The lower the temperature setting, the greater the energy efficiency, both to heat the water and to maintain the
storage temperature during standby periods. Lower water temperatures also extend tank life. Remember, no water
heating system will provide exact temperatures at all times. Allow a few days of operation at this setting to
determine the correct temperature setting consistent with the requirements for the installation.
The water heater temperature setting is adjusted by using the control display mounted to control surround jacket of the water heater.
The water heater thermostat is set at the lowest setpoint of 70°F (21
°
C) when shipped from the factory. The control display shows
the temperature setpoint in degrees Fahrenheit (°F) or degrees Celsius (
°
C), and the status of the water heater (“Idle” or “Heating”).
If the water heater is functioning normally, the display will also show “Operational”.
For energy efficient operation of your water heater, the suggested initial temperature setting is 120°F (49
°
C). During the winter
season, or any cold period, you may desire a higher temperature setting to adjust for the colder incoming water. This adjustment,
however, may cause additional condensation to form on the cooler tank surface. This does not mean the tank is leaking. During
summer months, the warmer incoming water temperatures will benefit the performance of your water heater and reduce the amount
of condensation developed.