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Operating Instructions continued-
WATER TEMPERATURE ADJUSTMENT
This water heater can deliver scalding temperature water at any
faucet in the system. Be careful whenever using hot water to
avoid scalding injury. By setting the thermostat on this water
heater to obtain an increased water temperature, you may create
the potential for scald injury. To protect against injury, you
should install an ASSE approved mixing valve (a device to limit
the temperature of water to protect against scald injury via
mixing hot and cold water supply) in the water system. This valve
will reduce point of discharge temperature in branch supply lines.
Such valves are available from the manufacturer of this water
heater or a local plumbing supplier. Please consult with a
plumbing professional.
Table 8 details the approximate relationship of water
temperature and time with regard to scald injury and may be
used as a guide in determining the safest water temperature for
your applications.
Figure 7 - Scald Warning
WARNING
SCALDING
TIME/TEMPERATURE
RELATIONSHIPS IN SCALDS
120°F
125°F
130°F
135°F
140°F
145°F
150°F
155°F
Table 8 – Scald Relationships
27
APPROXIMATE
More than 5 minutes
1 ½ to 2 minutes
About 30 seconds
About 10 seconds
Less than 5 seconds
Less than 3 seconds
About 1 ½ seconds
About 1 second
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