Install Instructions

6
Pre-Installation Items
Boiler Freeze Protection Feature
The boiler control has a freeze protection fea-
ture. This feature monitors the boiler supply
water temperature and responds as follows
when no call for heat is present:
- 42ºF
[6ºC] Boiler circulator and burner are ON.
- 50ºF
[10ºC] Boiler circulator and burner are OFF.
The boiler freeze protection feature is
disabled during a hard lockout, (burner
does not operate) however the CH circu-
late or will operate.
The boiler freeze protection feature is
designed to protect the boiler, installed
in a primary/secondary piping arrange-
ment. See Section IV for primary/sec-
ondary piping examples. See Section IX
for antifreeze guidelines.
CAUTION
CAUTION