Viessmann Vitocrossal 300 CA3 2.5 Installation And Service Instructions Manual page 140

Coding Level 1
"Cascade" Group
Coding in the factory set condition
"Type of control"
3b:1 Standalone parallel boiler circuit:
With supply temperature sensor
(see page 124).
"Control strategy"
3c:0 Condensing strategy (see page 125).
"Output statement"
3d:1 Output statement for condensing strategy
and conventional boiler strategy 1.
"ECO threshold boiler 1"
41:31 No ECO threshold boiler 1.
Do not adjust!
"ECO threshold boiler 2"
42:31 No ECO threshold boiler 2.
Do not adjust!
"ECO threshold boiler 3"
43:31 No ECO threshold boiler 3.
Do not adjust!
"ECO threshold boiler 4"
44:31 No ECO threshold boiler 4.
Do not adjust!
140
(continued)
Vitocrossal 300 CA3 Series 2.5 to 6.0 Installation/Service
Possible change
3b:0 Standalone parallel boiler circuit:
Without supply temperature sensor
(see page 124).
3b:2 Standalone serial boiler circuit:
Without supply temperature sensor
(see page 124).
3b:3 Standalone serial boiler circuit:
With supply temperature sensor (see page 124).
3b:4 Sequential control method with supply
temperature sensor (see page 124).
3c:1 Conventional boiler strategy 1 (see page 126).
3c:2 Conventional boiler strategy 2 (see page 127).
3d:0 No output statement
Note: Control only in accordance with
conventional boiler strategy 2.
41:−30 Adjustable from -22°F to 86°F
to (−30°C to +30°C).
41:+30
42:−30 Adjustable from -22°F to 86°F
to (−30°C to +30°C).
42:+30
43:−30 Adjustable from -22°F to 86°F
to (−30°C to +30°C).
43:+30
44:−30 Adjustable from -22°F to 86°F
to (−30°C to +30°C).
44:+30