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When the water heater is installed above 2000 ft.
(610 m), the settings on the DIP switch located
on the control board must be changed. If these
settings are not changed, the water heater will not
function properly.
NOTICE:
If the water heater is installed under 2000 ft. (610
m) altitude, no adjustments are necessary.
Verify the altitude that the water heater is installed.
Turn off the gas and water to the water heater by
closing the shut-off valves.
Minimum Temperature Adjustment by
the Main Remote Control (UMC–117,
USC1–117, and USC2–117)
Residential water heater temperatures can be
adjusted down to 85°F (29°C), when required.
To change the temperature settings down to
85°F (29°C):
Turn on the remote control.
Turn off the gas and water to the water heater by
closing the shut-off valves.
Press the DOWN adjustment button repeatedly
until 100°F (38°C) shows in the LED display.
NOTICE:
LED display only shows °F.
Press the DOWN adjustment button 3 times within
5 seconds. The display will show “85.”
Turn on the gas and water to the water heater by
opening the shut-off valves.
NOTICE:
The maximum flow rate at 85°F (29°C) is 1.3 gpm
(5.0 L/m).
INSTALLATION INSTRUCTIONS
Setting the Water Temperature (cont.)
1
2
3
4
5
High-Altitude DIP Switch Adjustments
1
Start/Adjust
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