Use and Care Manual

28 Rinnai Corporation EX08CT, EX11CT Manual
This function allows a minimum room temperature to
be pre-set, between 38ºF and 78ºF (in 2ºF increments)
This temperature should be set below the room
temperature setting. The default setting is 60ºF.
Once the Set back function is selected the appliance
will start heating whenever the room temperature falls
below the selected temperature, regardless of timer or
manual settings.
Follow these steps to set and operate the Set back
feature:
1. Make sure the heater is turned OFF.
Economy (Energy Saving Mode)
The Economy mode can only be set while the
heater is operating (heating). Once it is set, it
will remain in the system memory until
deactivated.
1. To turn the Economy mode on, press the
“Economy” button. The Economy
indicator is lit.
• The Economy mode now remains in the system
memory.
• If the appliance is turned off manually, or stops
heating as a result of an OFF timer period, the
“Economy “ indicator will go out.
• Whenever the appliance starts heating again,
the “Economy” indicator will light.
2. To turn the Economy mode off, press the
“Economy” button. The “Economy “ indicator will
go out.
• The Economy mode can only be turned off while
the heater is operating (heating) and when the
“Economy” indicator is lit.
Economy Mode Information
After the room is heated initially, the air temperature
may be dropped to a lower level without affecting
comfort. The Economy Mode reduces the
temperature by 2 ºF, 30 minutes after the room
temperature setting is reached. After another 30
minutes, it reduces the temperature setting by another
2 ºF, effectively saving energy. The room temperature
setting will drop up to a total of 4 ºF.
The Economy Mode will not operate if the heater is
under capacity for the room size.
Set Back
2. Press the “Set back” button. The light above the
button will come on.
3. Press the up and down buttons to set the
minimum temperature.
When the “Set back” indicator is on, frost protection is
operating, and will always prevent the room
temperature from falling below the pre-set minimum
temperature (as long as electric power and gas is
supplied).
To turn this feature off, press the “Set back” button.
The unit will retain its ON or OFF setting after a power
failure. (Default setting at the factory is on.)
NOTICE
The Set Back feature is intended to prevent the
installation location from falling below a specified
temperature. It is not intended as an alternate
thermostat, but rather a preventative measure against
freezing.