Install Instructions
IM-PR 566442 1114 (Design Manual)
94
4.2.3 Adjusting the high-limit
Limits should be set on the maximum supply water temperature to circuits based on design requirements.
The Mixing Station is provided with a preinstalled temperature high-limit. This high-limit is installed into the
3-way valve to allow a maximum supply water temperature to be set. This high-limit must be unscrewed
when purging the system and should then be set according to the instructions below.
Figure 4-8 Adjusting the high-limit
Turn adjustment screw further clockwise
until desired supply water temperature
is obtained and count quarter-turns for
reference. This has to be done carefully and
slowly because each quarter-turn of the
adjustment screw will result in approximately
15°F temperature reduction. Wait until
desired water temperature stays consistent.
Tighten hex lock nut with wrench. Do not
overtighten! To secure high-limit adjustment,
hold slotted adjustment screw with brass key,
while tightening lock nut.
Use opposite side of brass
key tool and turn inner
adjustment screw (slotted)
clockwise until valve spring
resistance is felt.
To lower water temperature, turn key
clockwise; turn counterclockwise to raise it!