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Appliance details
Temperature limiting controls (TCOs)
The water heater is equipped with two temperature-lim-
iting controls (TCOs) that are located above the upper
heating heating element in contact with the tank sur-
face. If for any reason the water temperature becomes
excessively high, the temperature-limiting control (TCO)
breaks the power circuit to the heating element. Once
the control opens, it must be reset manually. Resetting
of the temperature limiting controls should be done by
a qualified service technician.
Defrosting
Under the heating mode, the unit will shut down the
heat pump automatically if an unusually low temperature
is detected at the evaporator. This cycle can last
between 2 and 10 minutes and ensures maximum heat-
ing efficiency.
The fan motor will stop running when the unit is defrost-
ing.
Working conditions
In order to use the unit correctly, please run the unit at
ambient temperature 45°F - 115°F.
The unit includes sophisticated electronic devices, care
should be taken to feed the unit only with potable water.
Do not use untreated water from lakes, rivers or
untreated groundwater!
Overheating protection
When the water temperature reaches 165°F power to
the unit will be cut off (see section 4.7 for instructions
on resetting the temperature limiter).
Water temperature or pressure protection
The unit is equipped with a T&P valve for your safety. If
the tank pressure reaches 150PSI or the temperature
reaches 210°F, the T&P valve will open automatically to
relieve the pressure and or reduce the temperature to
safe limits.
Caution: The cause of high
temperature conditions must be
investigated by a qualified service
technician and corrective action must
be taken before placing the water heater
in service again.
