Viessmann VITODENS 200-W Service Instructions Manual page 50

Coding 2
General
(continued)
Coding in the factory setting
39:2
3A:0
3B:0
50
Function output sA: Circulation
pump for DHW tank heating
Function input DE1 at
extension
EA1: Not assigned
Function input DE2 at
extension
EA1: Not assigned
Vitodens 200-W B2HA 112, 150 Service
Possible change
39:0
Function output sA: DHW
recirculation pump.
39:1
Function output sA: Heating
circuit pump.
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.
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.