19/25
Building Technologies Division
CC1N7451en
20.11.2017
Connection diagram (for circuit variants, refer to «Connection examples»)
1
AS
br1
ar1
I
XV
ar2
ION
22
23
24
7
6
12
4
R
LP
5
13
14
N
M1
M2
d1
d2
22 23 24
QRA...
fr1
XI
XIII XII
AR
br2
L1
EK1
BR
3 21
2
16
AL
N
H
EK2
(1)/(3)
17
19
Z
ZBV
BV1
20
9
11
8
LK
SA
a
z
m
M
E
A
M
a
b
b
a
a
b
b a
a
b
b
a
a
b
fr3
NTC
fr2
FR
V
(1) (2)
a b
XIV
IV
X
II
b
b
a
a
7451a12/0204
15
VIII
b
a
18
V
VI
b
a
III
b
a
b
a
ar3
b
a
VII
10
M
SM
GP
v
BV1
BV2
BV2
LR
+
SB
L
H
W
Si
Attention!
Do not press lockout reset button «EK...» for more than 10 seconds!
For the connection of the safety shutoff valve, refer to the plant diagram
provided by the burner manufacturer.