Viessmann Vitodens 200-W B2HA 112 Installation Instructions Manual page 121

Vitodens 200-W B2HA 112, 150, 399, 530 Service
General
(continued)
Coding in the factory setting
3A:0
3B:0
Function input DE1 at
extension
EA1: Not assigned
Function input DE2 at
extension EA1: Not assigned
Possible change
3A:1 Function input DE1: Heating
program - changeover.
3A:2 Function input DE1: External
demand with set flow
temperature. Flow temperature
setting: Coding address 9B.
Internal circulation pump
function: Coding address 3F.
3A:3 Function input DE1: External
blocking. Internal circulation pump
function: Coding address 3E.
3A:4 Function input DE1: External
blocking with fault message input
Internal circulation pump
function: Coding address 3E.
3A:5 Function input DE1: Fault
message input.
3A:6 Function input DE1: Brief
operation, DHW recirculation
pump (pushbutton function).
DHW recirculation pump runtime
adjustment: Coding address 3D.
3A:7 Input zone circuit 1, constant
3A:8 Input zone circuit 1, weather
compensated
3B:1 Function input DE2: Heating
program - changeover.
3B:2 Function input DE2: External
demand with set flow
temperature. Flow 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 (pushbutton function).
DHW recirculation pump runtime
adjustment: Coding address 3D.
3B:7 Input zone circuit 2, constant
3B:8 Input zone circuit 2, weather
compensated
Coding 2
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