Technical data

175
Coding – Vitocontrol-S, VD2/CT3/CM2
Coding 2 (continued)
Coding in factory setting Possible change
General (continued)
99: 0 Connection to terminals 2 and 3 in plug aVD
(External disable/external mixing valve close)
i
n
a
c
t
i
v
e
99: 1 Contact affects:
No function
(
E
x
t
e
r
n
a
l
d
i
s
a
b
l
e
/
e
x
t
e
r
n
a
l
m
i
x
i
n
g
v
a
l
v
e
c
l
o
s
e
)
inactive
99: 2 Mixing valve close:
Mixing valve circuit M2
99: 3 No function
99: 4 Mixing valve close:
Mixing valve circuit M3
99: 5 No function
99: 6 Mixing valve close:
Mixing valve circuits M2 and M3
99: 7 No function
99: 8 External disable
99: 9 No function
99: 10 External disable and mixing valve close:
Mixing valve circuit M2
99: 11 No function
99: 12 External disable and mixing valve close:
Mixing valve circuit M3
99: 13 No function
99: 14 External disable and mixing valve close:
Mixing valve circuits M2 and M3
99: 15 No function
9A: 0
Connection to terminals 1 and 2 in plug aVD
(External mixing valve open) inactive
9A: 1 Contact affects:
No function
(
E
x
t
e
r
n
a
l
m
i
x
i
n
g
v
a
l
v
e
o
p
e
n
)
i
n
a
c
t
i
v
e
9A: 2 Mixing valve open:
Mixing valve circuit M2
9A: 3 No function
9A: 4 Mixing valve open:
Mixing valve circuit M3
9A: 5 No function
9A: 6 Mixing valve open:
Mixing valve circuits M2 and M3
99: 7 No function
5351 340 v1.4