74
INSTALLATION INSTRUCTIONS
Setting the Water Temperature
Start/Adjust
The contents on pages 74 through 77 should only be performed by qualified
service personnel.
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.
Commercial water heater temperatures can be adjusted up
to 185°F (85°C). Do not perform the following adjustment if
a setting of up to 185°F (85°C) is not required.
To change the temperature settings up to
185°F (85°C):
Turn off the gas and water to the water heater by closing
the shut-off valves.
T
urn off the remote control.
NOTICE: LED display only shows °F.
Remove the front cover panel on the water heater.
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
In-Use
Indicator
(Lit during
operation)
Priority
Indicator
Temperature
Adjustment
Buttons
ON/OFF
Button and
Indicator
LED Display
(Displays
water
temperature
and error
codes)
1
2
3
Temperature Conversion Chart °F/°C
85 100 102 104 106 108 110 112 114 116 118 120 125 130 140 150 160 170 185°F
29 38 39 40 41 42 43 44 46 47 48 49 52 54 60 66° 71 77 85 C
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