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68
INSTALLATION INSTRUCTIONS
Setting the Water Temperature
WARNING:
Improper adjustment, alteration, service, or
maintenance can result in death, personal injury,
property damage, and/or product damage.
Maximum Temperature Adjustment by
the Main Remote Control (UMC–117)
DANGER:
Water temperatures above 125°F (52°C) will result
in death and/or severe burns from scalding.
WARNING:
Refer to chart below and the scald potential
warnings on page 4 on this manual before making
an adjustment. Changing this setting is done at
your own risk.
Residential water heater temperatures can be
adjusted up to 140°F (60°C). DO NOT perform
the following adjustment if a setting of up to 140°F
(60°C) is not required.
To change the temperature settings up to 140°F
(60°C):
Turn on the remote control.
Turn off the gas and water to the water heater by
closing the shut-off valves.
Press the UP adjustment button repeatedly until
120°F (49°C) shows in the LED display. Hold the
UP button until “140” on the display starts to blink.
NOTICE:
LED display only shows °F.
Time/Temperature Relationship
in Scalds
Water Time to Produce
Temperature a Serious Burn
120°F (49°C) More than 5 minutes
125°F (52°C) 1 1/2 to 2 minutes
130°F (54°C) About 30 seconds
135°F (57°C) About 10 seconds
140°F (60°C) Less than 5 seconds
145°F (63°C) Less than 3 seconds
150°F (66°C) About 1 1/2 seconds
155°F (68°C) About 1 second
Table courtesy of Shriners Burn Institute
The contents on pages 68 through 75 should only be performed by qualified
service personnel.
In-Use
Indicator
(Lit during
operation)
Priority
Indicator
Temperature
Adjustment
Buttons
ON/OFF
Button and
Indicator
LED Display
(Displays
water
temperature
and error
codes)
3
1
2
Start/Adjust
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