Rinnai V3237FFU - Manual (Page 11)

11
Rinnai Corporation V3237 Models
Diagnostic Use of Controller
1. To Display Maintenance Codes: Press the ‘On/Off’ button once to turn the controller off.
Press and hold the ‘On/Off’ button followed by
thermostat button to cycle through the
maintenance codes.
2. To Display Water Flow through the water heater: Press the thermostat button and
hold for 2 seconds and then press the ‘On/Off’ button while continuing to hold the
thermostat button.
3. To Display Outlet Water Temperature: Press the thermostat button and hold for 2
seconds and then press the ‘On/Off’ button while continuing to hold the thermostat
button.
To Change the Temperature Display from °F to °C (or °C to °F)
1. Press the ‘On/Off’ button once to turn the controller unit off. With the controller off
press and hold the ‘On/Off’ button until the display changes to °C (°F), approximately 5
seconds.
To Turn Off the Sound (Mute)
1. To turn the sound off (mute) press and hold both the and thermostat buttons until
an audible “beep” is heard, approximately 5 seconds.
Digital Display
I
ndicates the selected water
temperature. Error messages
flash in the event of a failure.
Thermostat
Increases or decreases
the desired water
temperature.
In Use Indicator
Indicates that the hot water
heater is in operation.
ON/OFF Button
Used to switch the
water heater on and off.
Priority Button
Pressing takes control of the
water temperature by this
controller only when all taps
are off.
Priority Indicator
Indicates whether this
controller has priority
control over the water
temperature
REMOTE CONTROLLER OPERATION
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