Viessmann Vitocrossal 300 CA3 2.5 Installation And Service Instructions Manual page 149

Vitocrossal 300 CA3 Series 2.5 to 6.0 Installation/Service
"General" Group
Coding in the factory set condition
"Function output 157 at EA1 extension"
5c:0
Function output aBJ at EA1 extension:
Central fault message
"Function input DE1 at EA1 extension"
5d:0 No function
"Function input DE2 at EA1 extension"
5e:0 No function
(continued)
Possible change
5c:1 Feed pump
5c:2 No function
5c:3 Heating circuit pump, heating circuit without
mixing valve A1 (heating circuit 1), switched
to low speed (reduced mode).
5c:4 Heating circuit pump, heating circuit with
mixing valve M2 (heating circuit 2), switched
to low speed (reduced mode).
5c:5 Heating circuit pump, heating circuit with
mixing valve M3 (heating circuit 3), switched
to low speed (reduced mode).
5d:1 Operating program changeover
5d:2 External demand with minimum set supply
temperature. Set value adjustment at coding
"9b" in the "General" group.
5d:3 External blocking
5d:4 External blocking with fault message.
5d:5 Fault message input.
5d:6 Brief operation, DHW recirculation pump (push
button function) Set DHW recirculation pump
runtime at coding "12" in the "General" group.
5e:1 Operating program changeover
5e:2 External demand with minimum set supply
temperature Set value adjustment at coding
"9b" in the "General" group.
5e:3 External blocking
5e:4 External blocking with fault message.
5e:5 Fault message input
5e:6 Brief operation, DHW recirculation pump (push
button function) Set DHW recirculation pump
runtime at coding "12" in the "General" group.
Coding Level 2
149