3
Adjusting the Rotational Limit Stop – Identify RLS type from
pages 5-6.
A.
IMPORTANT:
The Rotational Limit Stop is used to limit the
amount of hot water available such that, if
set properly, the user will not be scalded if
the handle accidentally is rotated all the way
to "hot" when a person is showering or filling
a tub. 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 or filling 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 readjusted 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
Hotter
Disc
Stem
RLS with removable disc
T75P Series Installation
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 7, step 4D) and rotate the handle
counterclockwise 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 disc back
to a position where it is possible to remove
the Rotational Limit Stop and readjust the
teeth engagement position to the desired
temperature. Clockwise will decrease the
outlet temperature, counterclockwise will
increase the outlet temperature. Temperature
change per tooth (notch) could be 4° - 16°F
based on inlet water conditions. Repeat as
necessary.
Push disc until fully seated.
WARNING: Failure to re-install Disc after
setting Rotational Limit Stop could result
in scald injury.
• 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
1st Position
92658 Rev. A