55
Coding in the delivered condition
Possible change
Flow temperature setting: Coding
address 9b.
Internal circulation pump function:
Coding address 3F
3C:3
Function input DE3: External block-
ing.
Internal circulation pump function:
Coding address 3E
3C:4
Function input DE3: External block-
ing 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 (key func-
tion).
DHW circulation pump runtime ad-
justment: Coding address 3d
3d:5
DHW circulation pump runtime for
brief operation: 5 min
3d:1
to
3d:60
DHW circulation pump runtime ad-
justable from 1 to 60 min
3E:0
Internal circulation pump stays in
control mode at signal "External
blocking"
3E:1
Internal circulation pump stops at
signal "External blocking"
3E:2
Internal circulation pump starts at
signal "External blocking"
3F:0
Internal circulation pump stays in
control mode at signal "External
demand"
3F:1
Internal circulation pump stops at
signal "External demand"
3F:2
Internal circulation pump starts at
signal "External demand"
4b:0
Function input
lH
:
Room temperature controller
(Vitotrol 100). Only for constant
temperature control units.
4b:1
External demand
4b:2
External blocking
51:0
System with low loss header:
Internal circulation pump always
starts when there is a heat de-
mand
51:1
System with low loss header:
When there is a heat demand, the
internal circulation pump only starts
if the burner is operational.
Circulation pump stops on expiry of
the run-on time.
51:2
System with heating water buffer
cylinder:
When there is a heat demand, the
internal circulation pump only starts
if the burner is operational.
Circulation pump stops on expiry of
the run-on time.
52:0
Without flow temperature sensor
for low loss header
52:1
With flow temperature sensor for low
loss header (automatic recognition)
53:1
Function terminal
sK
of the internal
extension: DHW circulation pump
53:0
Function terminal
sK
: Central fault
message
53:2
Function terminal
sK
: External heat-
ing circuit pump (heating circuit 1)
Code 2
"General"/Group 1
(cont.)
5772 980 GB
Service