General Safety Precautions
To meet commercial water use needs, the thermostat on this water heater is adjustable up to 190°F. How- ever, water temperatures over 125°F can cause instant severe burns or death from scalds. This is the preferred temperature setting when supplying general purpose hot water.
Safety and energy conservation are factors to be considered when setting the water temperature on the thermostat. The most
Water temperature over 125°F can cause instant severe burns or death from scalds.
Children, disabled, and elderly are at highest risk of being scalded.
See instruction manual before set- ting temperature at water heater.
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.
Temperature | Time to Produce Serious Burn |
120°F | More than 5 minutes |
|
|
125°F | |
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 |
155°F | About 1 second |
|
|
Table courtesy of Shriners Burn Institute
TIME/TEMPERATURE RELATIONSHIPS IN SCALDS
The temperature of the water in the heater can be regulated by setting the temperature dial on the front of the thermostat. To comply with safety regulations, the thermostat was set at its lowest setting before the heater was shipped from the factory. The illustration below shows how to adjust the water temperature using the thermostat.
To adjust the water tem- perature, insert a small straight screwdriver into slotted screw in hole in front of thermostat and turn wheel to desired setting. Thermostat is adjustable up to 190°F.
CAUTION!! - Hotter water increases the risk of
SCALDING!
Feel water before bathing or show- ering.
Temperature limiting valves are available, see manual.
Maximum water temperatures occur just after burner has
There is a hot water scald potential if the thermostat is set too high.
NOTE: When this heater is supplying general purpose hot water requirements for use by individuals, a ther- mostatically controlled mixing valve for reducing point of use water temperature is recommended to reduce the risk of scald injury. Contact a licensed plumber or the local plumbing authority for further information.
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