Bradford White RG1PV50S6X19-264 Manual page 22

Water Connections continued-
Hydrogen gas can be produced in an operating water heater that has
not had water drawn from the tank for a long period of time (generally
two weeks or more). HYDROGEN GAS IS EXTREMELY
FLAMMABLE. To prevent the possibility of injury under these
conditions, we recommend the hot water faucet to be open for several
minutes at the kitchen sink before you use any electrical appliance
which is connected to the hot water system. If hydrogen is present,
there will be an unusual sound such as air escaping through the pipes
as hot water begins to flow. DO NOT smoke or have open flame near
the faucet at the time it is open.
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 the 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)
WARNING
Water temperature over 125°F
can cause severe burns
instantly or death from scalds.
Children, disabled and elderly
are at highest risk of being
scalded.
Review this instruction manual
before setting temperature
at water heater.
Feel water before bathing or
showering.
Temperature limiting valves
are available.
More than 5 minutes
Less than 5 seconds
Less than 3 seconds
22
1½ to 2 minutes
About 30 seconds
About 10 seconds
About 1½ seconds
About 1 second