Boiler cascade
74
The variables in the service menu (according to example):
BOIL.CASC
Boiler sequence:
Boiler A:
1
Boiler A is top priority (= dominant boiler)
Boiler B:
2
Boiler B is second priority
Boiler A:
automatic boiler
change: yes
Change dominant boiler if A - B = 200 hours
Operating time
284 hrs
Total boiler runtime A = 284 hours
RESET
METER:
no
“yes” to reset the meter
Boiler B:
automatic boiler
change: yes
Change dominant boiler if B - A = 200 hours
Operating time
91 hrs
Total boiler runtime B = 91 hours
RESET
METER:
no
“yes” to reset the meter
Difference hours run
for boiler change:
200 hrs
Once a difference of 200 operating hours between A and B is
reached, the control boiler is changed over, provided an auto-
matic boiler changeover is required (setting: yes).
