Bosch SST150-40 Installation And Operating Manual page 5

DANGER: HOT WATER CAN SCALD!
Water heated to temperatures for clothes
washing, dish washing, and other sanitizing
needs can scald and cause permanent injury.
Children, elderly, and infi rm or physically
handicapped persons are more likely to be
permanently injured by hot water. Never leave
them unattended in a bathtub or shower. Never
allow small children to use a hot water tap or
draw their own bath.
If anyone using hot water in the building fi ts the
above description, or if state laws or local codes
require certain water temperatures at hot water
taps, you must take special precautions:
– Use lowest possible temperature setting.
– Install some type of tempering device, such
as an automatic mixing valve, at hot water
tap or water heater. Automatic mixing valve
must be selected and installed according to
valve manufacturer's recommendations and
instructions.
Water passing out of drain valves may be
extremely hot. To avoid injury:
– Make sure all connections are tight.
– Direct water fl ow away from any person
Protection Must Be Taken Against Excessive
Temperature and Pressure! Installation of a
Temperature & Pressure (T&P) relief valve is
required.
DANGER:
Failure to adhere to the guidelines on this page
can result in severe personal injury, death, or
substantial property damage.
Indirect Fired Water Heaters Installation and Operating Manual
Installation & Operating Manual
When Servicing the Indirect Water Heater -
To avoid severe burns, allow the appliance to cool
before performing maintenance.
Indirect water heater operation –
Should overheating occur or gas supply fail to shut off, do
not turn off or disconnect electrical supply to circulator.
Instead, shut off the gas supply at a location external to
the appliance.
Do not use this appliance if any part has been under
water. The possible damage to a fl ooded appliance can be
extensive and present numerous safety hazards. Any
appliance that has been under water must be replaced.
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.
APPROXIMATE TIME / TEMPERATURE
RELATIONSHIPS IN SCALDS
120° F
125° F
130° F
135° F
140° F
145° F
150° F
155° F
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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