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Important Information
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For energy efficient operation of your water heater, the suggested initial water temperature setting is
120˚F (49˚C). During the winter season, or any cold period, you may desire a higher water 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. Over 40% of reported tank leaks on installation are
proven to be condensation. To avoid unnecessary expense and inconvenience, make sure the tank is
leaking before calling a service technician.
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.
can cause severe burns
are at highest risk of being
Children, disabled and elderly
instantly or death from scalds.
Water temperature over 125°F
Feel water before bathing or
before setting temperature
are available.
showering.
Temperature limiting valves
Review this instruction manual
at water heater.
scalded.
WARNING
Do not operate the water heater or Accessory Module without the Accessory Module cover in
place. Do not operate the water heater or Setback Control without the Setback Control Junction
Box Assembly cover in place.
Do not operate water heater, Accessory Module, and Setback Control with jumpered or absent
controls or safety devices.
Turn off or disconnect the electrical power supply to the water heater and its accessories before
servicing. Label all wires prior to disconnection when servicing controls. Wiring errors can
cause improper and dangerous operation. Verify proper operation after servicing.
All electrical wiring must be installed and grounded in accordance with local codes, or in the
absence of local codes, the National Electrical Code, ANSI/NFPA 70 and/or CSA C22 Electrical
Code.
Do not use wire holders to the right of the water heater gas valve. The screws used for the wire
holders can damage the water heater internal components.