Rinnai REU-N2024FF-US, Installation And Operation Manual

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56 Rinnai Tankless Water Heater Installation and Operation Manual
4.2 Controller
Setting the Controller to Mute
Locking the Controller
The controller panel allows you to adjust the water temperature, lock the controller on a set temperature, and view
diagnostic information.
To eliminate the beeps when keys are pressed, press and hold both the
(Up) and (Down) buttons at the same time until a beep is heard
(approximately 3 seconds). Then, release both buttons.
To turn on the beeps, repeat the above steps.
1. To lock the internal controller, press and hold down the “ Priority ” button.
2. While holding down the “ Priority ” button, press the (Up) button until
a beep is heard (approximately 5 seconds). Then, release both buttons at
the same time.
3. appears in the display indicating the controller is locked.
Note: The display flashes between and the set temperature to
indicate the controller is locked.
To unlock the controller, follow the above steps.
Display
Decreases hot water temperature
Increases hot water temperature
Indicates the water heater is in use
Turns the water heater on or off
Enables controller when multiple
controllers are used
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