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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
Start/Adjust
When the water heater is installed above 3,280 ft.
(1,000 m), the settings on the DIP switch located
on the printed circuit board (PCB) need to be
changed. If these settings are not changed, the
water heater may not function properly.
NOTICE: If the water heater is installed
under 3,280 ft. (1,000 m) altitude, no action is
required.
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. The OFF position
is DOWN.
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High-Altitude DIP Switch Adjustments
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