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6.3 Adjusting the High Limit Kit
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IM-HC 530590 0621 Climate Trak (EN)
The Mixing Station is provided with a pre-installed temperature High Limit
Kit. This kit is installed into the three-way valve to allow a maximum supply
water temperature to be set. This kit must be unscrewed when purging the
system, and should then be set according to the instructions below.
Remove (A) gray plastic cap from (B) valve body. (This cap can be
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A
used to adjust the water temperature manually.)
B
Loosen up (A) hex lock nut from the (B) valve body with brass key tool.
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A
B
Use opposite side of (A) brass key tool and turn inner adjustment screw
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A
(slotted) clockwise until valve spring resistance is felt. To lower water
temperature turn key clockwise; turn counterclockwise to raise it.
Turn adjustment screw further clockwise until desired supply water
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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.
This calibration must be done with the boiler at its highest
temperature, the circulator running and all zones open.
Tighten (A) hex lock nut with wrench. Do not overtighten. To secure
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high limit adjustment: hold slotted adjustment screw with brass key
while tightening nut.
A
System Start-Up
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