Rheem Tankless Water Heater User Manual
Required adjustment for up to 140°F (60°C) for Light Duty or 180°
(82°C) for Heavy Duty water heater temperature settings
(82°C) for Heavy Duty water heater temperature settings
WARNING: Refer to scald potential warnings on page 4 before
making adjustment. Changing this setting is done at your own risk.
DO NOT alter the #4 DIP Switch if the setting of up to 140°F (60°C) is
not required.
not required.
Follow the instructions below if it is determined that a setting of up to
140°F (60°C) for Light Duty or 180°F (82°C) for Heavy Duty is required.
140°F (60°C) for Light Duty or 180°F (82°C) for Heavy Duty is required.
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●
Turn off remote control. Turn off the gas and water shutoff valves.
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Remove the front cover.
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Find the DIP Switch #4 located at the top left hand side of the PCB.
(See diagram to the right for DIP Switch location).
(See diagram to the right for DIP Switch location).
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Change the DIP Switch #4 setting to the “ON” position. DO NOT alter
any other DIP Switch. The LED on the PCB is flashing. At the same
time, the display of the Main Remote Control starts to flash.
any other DIP Switch. The LED on the PCB is flashing. At the same
time, the display of the Main Remote Control starts to flash.
●
Press the “SW1” button on the left hand side of the PCB for more than 1
second. The LED on the PCB starts illuminating continuously. At the
same time, the display of the Main Remote Control is on continuously.
second. The LED on the PCB starts illuminating continuously. At the
same time, the display of the Main Remote Control is on continuously.
●
Change the DIP Switch #4 setting back to the “OFF” position. DO NOT
alter any other DIP Switch. The LED on the PCB will stop illuminating.
At the same time, the display of the Main Remote Control will turn off.
alter any other DIP Switch. The LED on the PCB will stop illuminating.
At the same time, the display of the Main Remote Control will turn off.
●
Attach the unit’s front cover.
●
Turn on the remote control, gas and water shutoff valves.
●
Check and ensure safe operation and performance of the water heater.
See steps below to LIMIT maximum water temperature setting
to 120°F (49°C).
to 120°F (49°C).
Follow first four bullets points listed above, then continue as listed below:
●
Press the “SW2” button on the left hand side of the PCB for more than 1
second. The LED on the PCB starts illuminating continuously. At the
same time, the display of the Main Remote Control is on continuously.
second. The LED on the PCB starts illuminating continuously. At the
same time, the display of the Main Remote Control is on continuously.
●
Change the DIP Switch #4 setting back to the “OFF” position. DO NOT
alter any other DIP Switch. The LED on the PCB will stop flashing.
At the same time, the display of the Main Remote Control will turn off.
alter any other DIP Switch. The LED on the PCB will stop flashing.
At the same time, the display of the Main Remote Control will turn off.
●
Attach the unit’s front cover.
●
Turn on the remote control, gas and water shutoff valves.
●
Check and ensure safe operation and performance of the water heater.
!
ON
1
2
3
4
DIP1
ON
OFF
1
2
3
4
SW1
SW2
SW3