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3
The chart shown above may be used as a guide in
determining the proper water temperature for your home.
!
DANGER: Households with small children, disabled,
or elderly persons may require a 120°F (49°C) or lower
thermostat setting to prevent contact with “HOT” water.
The temperature of the water in the heater is regulated by
the water heater interface control. To comply with safety
regulations the temperature was set at 120°F (49°C) before
the water heater was shipped from the factory.
The illustration below shows the water temperature setting.
Refer to the Operating Instructions in this manual for detailed
instructions in how to adjust the water temperature.
DANGER: Hotter water increases the potential for Hot
Water SCALDS.
Time/Temperature Relationship in Scalds
Temperature Time To Produce a Serious Burn
120°F (49°C) More than 5 minutes
125°F (52°C) 1½ 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 (65°C) About 1½ seconds
155°F (68°C) About 1 second
Table courtesy of Shriners Burn Institute
DANGER
!
HOT
Water temperature over 125° F (52°C)
can cause severe burns instantly or
death from scalds.
Children, disabled and elderly are
at highest risk of being scalded.
See instruction manual before
setting temperature at water
heater.
Feel water before bathing or
showering.
Temperature limiting valves are
available, see manual.
BURN
IMPORTANT SAFETY INFORMATION.
READ ALL INSTRUCTIONS BEFORE USING.
DANGER!
WATER TEMPERATURE SETTING
Safety and energy conservation are factors to be considered when selecting the water
temperature setting of water heater. Water temperatures above 125°F (52°C) can cause
severe burns or death from scalding. Be sure to read and follow the warnings outlined on
the label pictured below. This label is also located on the water heater near the thermistor
access panel.
NOTICE: Mixing valves are recommended for
reducing point of use water temperature by mixing
hot and cold water in branch water lines. It is
recommended that a mixing valve complying with
the Standard for Temperature Actuated Mixing
Valves for Hot Water Distribution Systems, ASSE
1017 be installed. See page 16 for more details and
contact a licensed plumber or the local plumbing
authority for further information.
When used in demand response applications a
thermostatic mixing valve conforming to ASSE
1017 shall be installed on the hot water supply line
following all manufacturer installation instructions.
See page 32 for additional installation information.
!
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