37
Note:
Whenever the external control opens the set of dry contacts
used, water heating operation is disabled. Whenever the
external control closes the set of dry contacts used, water
heating operation is enabled. A diagonal line and circle
appears over the thermometer icon on the UIM when water
heating operation is disabled. See Table 11 on page 42.
Note:
Ensure the water heater is protected from freezing
temperatures when water heating operation is disabled.
Damage to the water heater caused by freezing temperatures
is not covered under the limited warranty. See the Residential
Water Heater Limited Warranty supplied with this water
heater.
Summary of Contents for 300 Series
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