Viessmann VITOTRONIC 200 Installation And Service Instructions Manual page 44

Code 2
"General" Group
Coding
Coding in the factory setting
3B:0
3C:0
3D:5
4B:0
44
Function input DE2 at extension
EA1: Not assigned
Function input DE3 at extension
EA1: Not assigned
DHW circulation pump runtime
for brief operation: 5 minutes
Function input lH: Room
thermostat (Vitotrol 100) for
constant temperature control
Vitotronic 200 and 300-K Installation and Service
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 circulation pump
(pushbutton function).
DHW circulation 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 circulation
pump (pushbutton function).
DHW circulation pump runtime
adjustment: Coding address 3D.
3D:1 DHW circulation pump off delay
to adjustable from 1 to 60 minutes.
3D:60
4B:1 External demand.
4B:2 External blocking.