ECO ULTRA Electric Boiler
Installation, Use and Care Manual
(Revision June 2017)
, Page
31.
Section 8 : OPTION DHW HEAT EXCHANGER
General Safety Precautions
Be sure to read and understand the entire Use & Care Manual before attempting to install or operate
this water heater. Pay particular attention to the following General Safety Precautions. Failure to
follow these warnings could cause property damage, bodily injury or death. Should you have any
problems understanding the instructions in this manual, STOP, and get help from a qualified installer
or technician.
However water temperatures over 125°F can
cause severe burns instantly or death from scalds.
125°F is the preferred starting point for setting the
control to supply general-purpose hot water.
Safety and energy conservation are factors to be
considered when setting the water temperature on
the aquastat. The most energy efficient operation
will result when the temperature setting is the
lowest that satisfied the needs consistent with the
application.
To find hot water temperature being delivered,
turn on a hot water faucet and place a
thermometer in the hot water stream and read the
thermometer.
The following chart details the 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.
TIME VS TEMPERATURE
RELATIONSHIPS IN SCALDS
Temperature
Time to Produce
Serious Burn
120°F
More than 5 minutes
125°F
1-1/2 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 1-1/2 seconds
155°F
About 1 second
Table courtesy of Shriners Burn Institute
There is a Hot Water Scald Potential if the
aquastat is set too high. When this water
heater is supplying general purpose hot water
requirements for use by individuals, a
thermostatically controlled mixing valve for
reducing point-of-use water temperature is
recommended to reduce the risk of scald
injury. Contact a licensed plumber or local
plumbing authority for further information.
DANGER
!
!