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Building Technologies CC1N7761en
HVAC Products 19.02.2007
Connection examples and sequence diagrams (cont’d)
Startup with short preignition (3 seconds) and checked actuator control.
Required type of flame safeguards: LFE10... with UV detectors QRA... or ionization
probe.
1 2 13 14 15 12 19 18 8 9 4 3 22 21 20 17 6 5 7 11
UL.2
M1 M2
MM
c1
e1
P
(R)
c2
e2
H
N
(Mp)
L2
LP
P
c1
W
GP
T
T
e1
c1
1 2 12 11
az
M
N
LK
e2
d1
c2
Z
GV1
GV2
GV3
d1
d1
LEC1...
7761a05/0896
EK2
16
3
7
4
5
6
FW
3
7
4
5
6
FW
(LAE10...)
SB
P
R1
Luft
Gas
M
LK
GV3
GV2
GV1
7761a06/0696
Air damper control, detailed
In the case of burners without air damper
or with an air damper not controlled by
the control unit, terminals 20, 21 and 22
must be interconnected.
Link 18-c1-21 is not permitted however!
t11 t1 t12 t11 tn t6 t12
22
21
21/d1
18/c1/d1
20
LK"a"
LK"z"
A
BCDE
7761d04/0696
AB
t8
t7
t11
t1 t12
TSA
t3´
t4
t5
M1
M2
LK
Z
GV1
GV2
GV3
FW
L2
Kl.3
17
22/21
6
5
7
11
13/14
12
C
t6
DE F G H
t6
t7
t1
TSA
KL
7761d05/0401
I
t3´
t5
t4
A Startup G-H Operation
A-B Normal startup H Loss of flame
B-C Operation H-I Lockout
C Controlled shutdown I Reset
C-D Postpurging I-K Home run
D-E Closing of the air damper K Restart
E-F Burner off period K-L Startup
F Restart L
4
Operation
F-G Startup
Double- or multiflame
supervision of gas
burners (expanding
flame burners)
Legend
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