Viessmann Vitocrossal 300 Service Manual page 59

Vitocrossal 300 CU3A 26 to 57 Service
General
(continued)
Coding in the factory setting
3B:0
3C:0
3D:5
3E:0
3F:0
Function input DE2 at extension
EA1: Not assigned
Function input DE3 at extension
EA1: Not assigned
DHW recirculation pump
runtime for brief operation: 5
minutes
Internal circulation pump
stays in control mode at
signal "External blocking"
Internal circulation pump
stays in control mode at
signal "External demand"
Possible change
3B:1 Function input DE2: Heating
program - changeover.
3B:2 Function input DE2: External
demand with set supply
temperature. Supply temperature
setting: Coding address 9B.
Internal circulation pump function:
Coding address 3F.
3B:3 Function input DE2: External
blocking. Internal circulation pump
function: Coding address 3E.
3B:4 Function input DE2: External
blocking with fault message input
Internal circulation pump function:
Coding address 3E.
3B:5 Function input DE2: Fault message
input.
3B:6 Function input DE2: Brief
operation, DHW recirculation
pump (push button function).
DHW recirculation pump runtime
adjustment: Coding address 3D.
3C:1 Function input DE3: Heating
program - changeover.
3C:2 Function input DE3: External
demand with set supply
temperature.
Supply temperature setting:
Coding address 9B.
Internal circulation pump function:
Coding address 3F.
3C:3 Function input DE3: External
blocking.
Internal circulation pump function:
Coding address 3E.
3C:4 Function input DE3: External
blocking with fault message input
Internal circulation pump function:
Coding address 3E.
3C:5 Function input DE3: Fault message
input.
3C:6 Function input DE3: Brief
operation, DHW recirculation
pump (push button function).
DHW recirculation pump runtime
adjustment: Coding address 3D.
3D:1 DHW recirculation pump runtime
to adjustable from 1 to 60 minutes.
3D:60
3E:1 Internal circulation pump stops
at signal "External blocking".
3E:2 Internal circulation pump starts
at signal "External blocking".
3F:1 Internal circulation pump stops
at signal "External demand".
3F:2 Internal circulation pump starts
at signal "External demand".
Coding 2
59