Rinnai RHFE-431WTA - Manual (Page 36)

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FROST PROTECTION
This function allows a minimum room temperature to be pre-set, between 38 F and 60 F. Once the
Frost Protection function is selected the appliance will start heating whenever the room
temperature falls below the selected temperature, regardless of timer or manual settings.
In addition this function can be used to protect the elderly of infirm who may suffer from
hypothermia.
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Follow the steps below to set and operate the Frost Protection:
Make sure the heater is turned OFF.
Press the “Frost” button. The
Frost Protection temperature
and the “Frost” indicator will be
displayed.
Press the “ ” and “ ”
buttons to select the Frost
Protection temperature.
(Between 38 F and 60 F).
When the “Frost” indicator is displayed the Frost Protection is operating, and will always prevent the
room temperature from falling below the pre-set Frost Protection temperature.
To turn off the Frost Protection:
Press the “Frost” button. The
“Frost” indicator will go out.
Set
Frost
pm
Tu
Eco Frost
Override Auto ON/OFF
Set
Frost
pm
Tu
Programming
Clock Timer Select
pm
Tu
Eco Frost
Override Auto ON/OFF