21
• Applicable Model
Install the remote controller according to the instructions in the Installation Guide (p. 28).
* The water heater has been factory set to allow a maximum temperature setting of 120
°
F.
To access higher temperature settings through the remote controller, follow the below steps.
<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 125-180
°
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. Connect "WATER TEMPERATURE ADJUSTMENT CONNECTOR" tag
connector to "180
°
F" tag connector as shown on the right.
5. Replace the front cover of the water heater (4 screws).
6. Reconnect electrical power to the water heater, but do not turn it on.
7. Press and hold the FLOW METER ALARM SET button until a sound is
heard (2 sec.) and 120
°
F appears on the display.
8. 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, 170
°
F or 180
°
F
using the UP and DOWN setting buttons.
9. 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.
• The NR98-SV can be programmed so that it will default to one of four temperatures if the remote controller
is removed (180, 140, 130, 120
°
F). To change the default temperature, connect the temperature selection
wire as shown in the above diagram. The default temperature is 120
°
F when the temperature selection
wire is not connected.
Remote Controller
Remote controller
RC-7649M
NR98-SV
WA
TER TEMPERA
TURE
ADJUSTMENT CONNECT
OR
WATER TEMPERATURE
ADJUSTMENT CONNECTOR
(the back : 55 C)
(the back : 60 C)
(the back : 83 C)
• 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
