Operating Guide

68881 Rev. M
Installation
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 or lling a tub. The
rst position allows the
LEAST
amount of hot
water to mix with the cold water in the system.
In the rst 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
or lling a tub.
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 nished, 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.
7
Adjusting the Rotational Limit Stop – Identify RSL type from pages 6-7.
Hotter
Cooler
1
1
3
B.
RLS with pull/turn adjustment