158
5790 733 - 07
Vitocrossal 300 CA3 Series 2.5 to 6.0 Installation/Service
“Cascade” Group
(continued)
Coding Level 2
Coding in the factory set condition
Possible change
“System pump”
3e:0
System pump will only run if there is a
heat demand.
3e:1
System pump always runs; shutdown
through “External blocking” signal.
“Tank priority control for system pump”
3f:0
Without tank priority control for system
pump.
3f:1
With tank priority control for system
pump.
“ECO threshold boiler 1”
41:31
No ECO threshold boiler 1.
Do not adjust!
41:
−
30
to
41:+30
Adjustable from -22°F to 86°F
(
−
30°C to +30°C).
“ECO threshold boiler 2”
42:31
No ECO threshold boiler 2.
Do not adjust!
42:
−
30
to
42:+30
Adjustable from -22°F to 86°F
(
−
30°C to +30°C).
“ECO threshold boiler 3”
43:31
No ECO threshold boiler 3.
Do not adjust!
43:
−
30
to
43:+30
Adjustable from -22°F to 86°F
(
−
30°C to +30°C).
“ECO threshold boiler 4”
44:31
No ECO threshold boiler 4.
Do not adjust!
44:
−
30
to
44:+30
Adjustable from -22°F to 86°F
(
−
30°C to +30°C).
“Stop differential”
47:15
Set to 15 K.
47:2
to
47:30
Adjustable from 4°F to 54°F
(2 K to 30 K)
Note:
One boiler or one burner stage
will be shut down if the actual supply
temperature exceeds the set supply
temperature by this value.
“ECO threshold boiler 5”
65:31
No ECO threshold boiler 5.
Do not adjust!
65:
−
30
to
65:+30
Adjustable from -22°F to +86°F
(-30°C to +30°C).
