Bradford White RE2H50S 1NCTT Series Installation/Operation Instruction Manual page 15

Water Supply Connections cont.-
Hydrogen gas can be produced in a hot water system served by this water heater when there has been no
usage 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.
There is a hot water scald potential if the control water temperature is set too high. Households with small
children, disabled, or elderly persons may require a 120°F (49°C) or lower thermostat setting to prevent
The cause of the high temperature condition must be investigated by a qualified service technician and
corrective action must be taken before placing the water heater in service again.
Safety Controls
The water heater is equipped with a temperature-limiting control (TCO) that is located above the heating
element in contact with the tank surface. If for any reason the water temperature becomes excessively high,
the temperature-limiting control (TCO) breaks the power circuit to the heating element. Once the control
opens, it must be reset manually. Resetting of the temperature limiting controls should be done by a qualified
service technician.
To reset the temperature-limiting control:
1. Turn OFF the power to the water heater.
2. Remove the jacket access panel(s) and insulation. The thermostat protective cover should NOT be
removed.
3. Press the red RESET button.
4. Replace the insulation and jacket access panel(s) before turning on the power to the water heater.
WARNING
DANGER
contact with "HOT" water.
CAUTION
15