16/19
Building Technologies CC1N7461en
21.08.2018
Connection examples for interrupted pilot burners
On / off control with checked air damper operation.
When using UV flame detector QRA..., terminal 13 must be connected to earth.
a
z
M
N
4
5 7
8
100% 0%
33%
38%
31% 46%
d1
T
GV3
Z
(GV)
GV2
d1
(SQ...)LK
1 2 11
12
3 6
13
14 15 16 17
e2
c2
c1/c2
P
LP
e1
c1
T
W
T
R1
P
GP
c1
BS
I
II
III
IV
R2
7
11
LFE1
H
SB
M2M1
M
M
c2
e2
c1
e1
P (R) N (Mp)
L2
ION
+
LF
EK2
1
2 12 13 14
15 16 17
19
18 8 9 4 3 22 20 21 5 6 10
7461a07/0207
Operating switch BS
I Nominal load
II Stop
III Part load
IV Automatic control
Gas
Luft
Gas
M
GV3
GV2
LK
(GV) 7461a08/1196
A B C DE
21/d1/BS/R2
21/d1
22/c1
18/c1
20
"a"
"kl. Fl."
"z"
t11
t1
t12
t11
7461a09/1196
Air damper control (detailed).
M1
M2
LK
Z
(GV)
GV2
GV3
FW
L2
Kl. 3
17
22/21
6
10
7
11
13/14
13/15
12
A
t8
B
tn
C
t6
D
E
F G
H
I
t6
K L
t7
t11 t1 t12
TSA
t3
t4
t5
t9
t7
t1
TSA
t3
t4
t5
t9
7461a10/0301
A Start G-H Operation
A-B Normal start H Loss of flame
B-C Operation H-I Fault
C Controlled shutdown I Reset
C-D Postpurging I-K Run in start position
D-E Air damper closing K Re-start
E-F Burner off time K-L Startup sequence
F Re-start L
4
Operation
F-G Run in start position
Legend to the
sequence diagram
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