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3
Adjusting the Rotational Limit Stop
B.
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.
1
75P Series Installation
Hotter
• 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.
5
Cooler
1
101688 Rev. A
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