Immersion Thermostat; Temperature Regulation - Bradford White VR-150-(kW) Installation And Service Manual

HAZARD OF ELECTRICAL SHOCK - Before opening the electrical access panel to adjust the
thermostat or servicing the water heater, make sure the electrical supply to the water heater is turned "OFF".
Failure to do this could result in death, serious bodily injury or property damage.
IMMERSION THERMOSTAT (S):
This water heater uses an immersion thermostat(s) to activate magnetic contactors allowing current to flow to
the immersion heating elements. The standard control system uses one immersion thermostat for each 54kW
of electric heating power in a water heater. As an option, additional immersion thermostats may be provided
to add additional steps of thermostatic control. The sensing bulb for each immersion thermostat is immersed
in the stored water in the tank to provide quick, accurate response to changes in water temperature. The
thermostat sensing bulb is located near the elements it is controlling. The immersion thermostat set point is
adjustable by rotating a knob on the control. Turning the knob counter clockwise decreases the temperature
set point and turning the knob clockwise increases the set point. The temperature setting shown at the top of
the knob is the selected set point. The immersion thermostat has a fixed 6°F (3.3°C) differential.

TEMPERATURE REGULATION:

WATER TEMPERATURE SETTINGS:
This water heater has an adjustable thermostat to control water temperature. The thermostat is factory pre-
set at approximately 125° F (51.7° C) or less. Households with small children or invalids may require a
120° F (48.9° C) or lower temperature setting to reduce risk of scald injury. Some states may require a
lower temperature setting. Check with your local codes or electric utility for local requirements governing
the temperature setting. Remember, no water heating system will provide exact temperatures at all times.
WARNING:
HAZARD OF ELECTRICAL SHOCK - Before opening the
electrical access panel to adjust the thermostat make sure the electrical
supply to the water heater is turned "OFF".
Full power is present whenever the cabinet door is opened, even
with the pilot switch(es) turned off.
Set temperature control to the lowest setting which satisfies the hot water
requirements of the system. Lower water temperatures help minimize scale
formation on the heating elements. See thermostat information below for
electronic step control module.
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WARNING:
DANGER: