Bradford White BW200-R Installation & Operating Instruction Manual page 10

Water Connections continued-
Hydrogen gas can be produced in a hot water system served by this water
heater that has not been used for a long period of time (generally two
weeks or more). Hydrogen gas is extremely flammable. To reduce the
risk of injury under these conditions, it is recommended that the hot water
faucet be opened for several minutes at the kitchen sink before using any
electrical appliance connected to the hot water system. If hydrogen is
present, there will probably be an unusual sound such as air escaping
through the pipe as the water begins to flow. There should be no
smoking or open flame near the faucet at the time it is open.
INCREASING THE THERMOSTAT SETTING ABOVE THE PRESET
TEMPERATURE MAY CAUSE SEVERE BURNS AND CONSUME
EXCESSIVE ENERGY. HOTTER WATER INCREASES THE RISK OF
SCALD INJURY.
This water heater can deliver scalding temperature water at any faucet in the
system. Be careful whenever using hot water to avoid scalding injury.
Certain appliances, such as dishwashers and automatic clothes washers,
may require increased temperature water. By setting the thermostat on this
water heater to obtain increased temperature water required by these
appliances, you may create the potential for
scald injury. To protect against injury, you
should install an ASSE approved mixing
valve in the water system. This valve will
reduce point of discharge temperature by
mixing cold and hot water 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.
APPROXIMATE TIME/TEMPERATURE
RELATIONSHIPS IN SCALDS
120°F (49°C)
125°F (52°C)
130°F (54°C)
135°F (57°C)
140°F (60°C)
145°F (63°C)
150°F (66°C)
155°F (68°C)
More than 5 minutes
1½ to 2 minutes
About 30 seconds
About 10 seconds
Less than 5 seconds
Less than 3 seconds
About 1½ seconds
About 1 second
WARNING
CAUTION
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