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Operating the water heater.
Time/Temperature Relationship in Scalds
Water Temperature Time To Produce a Serious Burn
120°F More than 5 minutes
125°F 1½ to 2 minutes
130°F About 30 seconds
135°F About 10 seconds
140°F Less than 5 seconds
145°F Less than 3 seconds
150°F About 1½ seconds
155°F About 1 second
Table courtesy of Shriners Burn Institute
Water Temperature Setting…
Maximum water temperatures occur
just after the burner has shut off. To
determine the hot water temperature
turn on a hot water faucet and place a
thermometer in the hot water stream.
The reference mark p on the rim of
the temperature dial, represents an
approximate water temperature of
120°F.
The reference
A
or
①
mark
represents an approximate water
temperature of 130°F.
Each reference mark above or below
these points indicates an approximate
change of 10°F.
To adjust the temperature, turn the
temperature dial to an initial setting of
120°F.
A condition known as “stacking” or
“layering” can occur when a series of
short and frequent hot water draws are
taken.
The hottest temperature water will be at
the top of the tank, closest to the outlet
pipe delivering hot water to the home.
Stacking can cause this top layer of water
to be hotter than the water toward the
bottom of the tank near the gas control
(thermostat).
Therefore, always remember to test the
water temperature with your hand before
use and remember that hotter water
increases the risk of scald injury.
Also, always supervise young children or
others who are incapacitated.
The gas control (thermostat) is
constructed with a built in safety shut-
off device designed to shut off the gas
supply to the burner if the pilot flame
is extinguished for any reason.
The gas control (thermostat) is also
equipped with a single use gas shut
off device that will shut off the gas
supply to the burner if the water
heater exceeds normal operating
temperatures. Refer to the (Before
You Call For Service) section of this
manual, or contact your dealer.
!
WARNING: Should overheating occur or
the gas supply fail to shut off, turn off the
manual gas control valve to the appliance.
If the water heater has been subjected
to fire, flood or physical damage, turn
off the manual gas control (shut-off)
valve, and do not operate the water
heater again until it has been checked
by qualified personnel.
NOTICE: Replace any part of the gas control
system which has been under water.
17
155°F
150°F
140°F
110°F
80°F
Temperatures are approximate
90°F
100°F
130°F
120°F
45°F
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