104437 Rev. A
IMPORTANT:
The Rotational Limit Stop is used to limit the
amount of hot water available such that, if set
properly, a scald injury is less likely to occur if the
handle accidentally is rotated all the way to “hot”
when a person is showering. The first position
allows the LEAST amount of hot water to mix with
the cold water in the system. In the first position
the water will be the coldest possible when the
handle is turned all the way to hot. As you move
the Rotational Limit Stop counterclockwise, you
progressively add more and more hot water in
the mix. The last position to the left will result
in the greatest amount of hot water to the mix,
and the greatest risk of scald injury if someone
accidentally turns the valve handle all the way to
the hot side while showering.
WARNING: In some instances, setting the
Rotational Limit Stop in the hottest position
(full counterclockwise) could result in scald
injury. It is necessary to adjust the Rotational
Limit Stop so that the water coming out of the
valve will not scald the user when the handle
of the valve is rotated to the hot side.
• According to the majority of industry standards,
the maximum allowable temperature of the water
exiting the valve is 120°F (Your local plumbing
codes may require a water temperature less than
120°F).
• The Rotational Limit Stop may need to be re-
adjusted seasonally if the inlet water temperature
changes. For example, during the winter, the
cold water temperature is colder than it is
during the summer which could result in varying
outlet temperatures. A water temperature for a
comfortable bath or shower is typically between
90°F - 110°F.
• Run the water so that the cold water is as
cold as it will get and hot water is as hot as
it will get. Place the handle on the stem (see
page 8, step 4C) and rotate the handle coun-
terclockwise until the handle stops.
• Place a thermometer in a plastic tumbler
and hold in the water stream. If the water
temperature is above 120°F, the Rotational
Limit Stop must be repositioned clockwise to
decrease valve outlet water temperature to be
less than 120°F or to meet the requirements of
your local plumbing codes.
• To adjust the temperature of the water
coming out of the valve, pull the white
Rotational Limit Stop (1) outward and rotate.
Clockwise rotation will decrease the outlet
temperature, counterclockwise rotation will
increase the outlet temperature. Temperature
change per tooth (notch) could be 4° - 16°F
based on inlet water conditions. Repeat as
necessary. When finished, make sure that the
Rotational Limit Stop is fully retracted into the
seated position. WARNING: Do not take the
Rotational Limit Stop apart.
• MAKE SURE COLD WATER FLOWS
FROM THE VALVE FIRST. MAKE SURE
WATER FLOWING FROM THE VALVE AT
THE HOTTEST FLOW POSSIBLE DOES
NOT EXCEED 120°F OR THE MAXIMUM
ALLOWED BY YOUR LOCAL PLUMBING
CODE.
Hotter
Cooler
1
1
B.
Installation
3
5
Adjusting the Rotational Limit Stop
