20
• Applicable Model
Install the remote controller according to the instructions in the Installation Guide (p. 25).
• The N-0631S can be programmed so that it will default to one of three temperatures (140, 130, 120°F)
when the temperature selection wire is not connected. To change the default temperature, connect the
temperature selection wire as shown in the below diagram.
Note: If the 160°F connector is being used, the unit will automatically default to a temperature of 120°F
for safety if the remote controller is not installed.
* The water heater has been factory set to allow a maximum temperature setting of 120°F.
To access higher temperature settings with the optional remote controller installed, follow the below
steps. The unit can only be set to temperatures in the range of 145-160°F when the optional remote
controller is installed.
<When setting the maximum temperature to 125-140°F>
1. Turn the water heater off by pressing the ON/OFF button on the remote controller.
2. Press and hold the FLOW METER ALARM SET button until a sound is heard (2 sec.) and "120°F"
appears on the display.
3. Set the upper limit of the hot-water supply temperature to 125°F, 130°F, 135°F or 140°F using the
UP and DOWN setting buttons.
4. To put the water heater back into operation, press the ON/OFF button on the remote controller.
To keep the water heater off, let the unit sit for 30 sec. to return to the original display.
<When setting the maximum temperature to 125-160°F>
1. Turn the water heater off by pressing the ON/OFF button on the remote
controller.
2. Disconnect electrical power to the water heater.
3. Remove the front cover of the water heater (4 screws).
4. Locate the bag of temperature selection wires attached to the inside
of the unit in the bottom left corner.
5. Connect the temperature selection wire labeled "160°F" to
the circuit board as shown on the right.
6. Replace the front cover of the water heater (4 screws).
7. Reconnect electrical power to the water heater, but do not turn it on.
8. Press and hold the FLOW METER ALARM SET button until a sound is
heard (2 sec.) and "120°F" appears on the display.
9. Set the upper limit of the hot-water supply temperature to
125°F, 130°F, 135°F, 140°F, 145°F, 150°F, 160°F using
the UP and DOWN setting buttons.
10. To put the water heater back into operation, press the ON/OFF button on the remote controller.
To keep the water heater off, let the unit sit for 30 sec. to return to the original display.
Remote Controller
Remote controller
RC-7649M
N-0631S (-OD)
• When changing the temperature, make sure to confirm with the customer that the temperature of
the hot water will be very high and that there is a risk of scalding.
• Water temperatures above 125°F can cause severe burns or death from scalding.
WARNING
UP
DOWN
EMW
Remote
Controller
SAR8584C̲015̲025̲E̲J.p65
06.11.15, 3:49 PM
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