Aerco KC Series Installation, Operation & Maintenance Instructions Manual page 29

o
200 F water temperature. Do NOT attempt to
adjust it's set point.
To adjust the lower over temperature switch limit
switch:
1. Remove the wing nut from the top center of
the shell cap. Lift the cap off the shell.
2. The two over-temperature limit switches are
located at the top of the shell (see Fig. 4.8).
Do not adjust the upper switch. It has been
factory preset. Adjust the lower switch 20
higher than the unit's set point.
3. Replace the shell cap and wing nut.
o
F
24
INITIAL START-UP