Rinnai EX38DT Installation And Operation Manual page 34

5.4.6 Setting and Operating
the Timers
Confirm the clock is correct.
NOTE: The clock will have to be reset in case
of a power failure. However the timers will retain
their settings.
The furnace will start before the programmed
starting time in order to heat the room by the
programmed starting time.
The timers can be set while the furnace is on or
off. To operate the timer, the furnace must be
on.
Setting the timers:
1. Press the "Program"
button twice to set Timer 1.
2. The light next to "Timer 1 on" should be
flashing. Press the up or down arrows to set
the start time. Holding down either of the
arrow keys will change the time more quickly.
6:00
Figure 44
3. Press the "Program" button again so that
the Timer 1 off position is flashing. Press
the up or down arrows to set the end time.
Holding down either of the arrow keys will
change the time more quickly.
9:00
Figure 45
4. Press the "Program" button again so that the
Timer 1 Temp Position is flashing. Press the
up or down arrows to set the temperature.
72
Figure 46
34
5. Press the "Program" button again to
6. Press the "Program" button until none
Operating the timers:
To operate the furnace using a Timer, press
the ON/OFF button and the appropriate Timer
button. The furnace will operate from the start
to end times you have entered for that Timer. It
will operate at the temperature setting that has
been set for the furnace. The timer can be set
while the furnace is operating.
Figure 43
Flashing
While in standby, the timer LED will be on with
a solid light. When operating the LED will be
flashing.
5.4.7 Override Function
This function is used only when the furnace is
in Timer operation.
It allows you to "override" the reset timer
setting until the beginning of the next Timer
period.
For example, if the furnace is ON, pressing
Flashing
the "Override" button will turn the furnace OFF
until the next period. If the furnace is OFF,
pressing the "Override" button will turn the
furnace ON, and allow you to select a
temperature setting, until the next period. The
furnace will remain on until the next timer
period or until the Override function is turned
off.
When in override function,
pressing the "Override" button
will return the furnace to the
operation of the current timer
period.
Flashing
EX38DT Installation and Operation Manual
set the times for Timer 2. Follow the
same steps above to set the start and
end times.
of the time options are flashing up.
Figure 47
Figure 48