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 |
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.
Condensation does not mean your tank is leaking. Most of reported tank leaks on installation are proven to be condensation. To avoid unnecessary inconvenience and expense, make sure the tank is leaking before calling an independent servicing contractor or qualified service professional.
If the water heater is to remain idle for 30 days or more or is subjected to freezing temperatures while shut off, the water heater and piping should be fully drained and the drain valve should be left fully open. Refer to the “General Operation” section of this Installation and Operating Instructions Manual for the procedure on draining the water heater.
DANGER
Hotter water increases the risk of scald injury. Scalding may occur within 5 seconds at a temperature setting of 140°F (60°C). To protect against hot water injury, install an ASSE approved mixing valve in the water system. This valve will reduce point of discharge temperature by mixing cold and hot water in branch water lines. A licensed plumbing professional or local plumbing authority should be consulted.
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