Setting the Clock
1. Press the “Set Times” button.
2. The light next to “Clock” should be lit. Press the up and down arrows to set the time. Holding down either of the arrow keys will change the time more quickly.
3. Press the “Set Times” button until none of the time options are lit up.
Operating the Heater Manually
1. Turn the heater on by pressing the “ON/OFF” button.
2. Press the up or down arrows to set the temperature. The left side of the display shows the temperature setting. The right side of the display shows the room temperature.
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 heater 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 heater is on or off. To operate the timer, the heater must be on.
Setting the timers:
1. Press the “Set Times” button twice to set Timer 1.
2.The light next to “Timer 1 on” should be lit. Press the up or down arrows to set the start time. Holding down either of the arrow
keys will change the time more quickly.
3. Press the “Set Times” button again so that the Timer 1 off position is lit. Press the up or down arrows to set the end time. Holding down either of the arrow keys will change the time more quickly.
4.Press the “Set Times” button again to set the times for Timer 2. Follow the same steps above to set the start and end times.
5.Press the “Set Times” button until none of the time options are lit
up.
Operating the timers:
To operate the heater using a Timer, press the ON/OFF button and the appropriate Timer button. The heater 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 heater. The timer can be set while the heater is operating.
8 | Rinnai Corporation EX17C / EX22C Manual |