Advertisement
Assignment of terminals
LOK16...
LGK16...
Legend
a
Changeover end switch for air damper's
fully open position
AL
Remote lockout warning device (alarm)
AR
Main relay (load relay) with «ar» contacts
AS
Unit fuse
B
Wire link (on the burner control's base)
BR
Lockout relay with «br» contacts
BV...
Fuel valve
bv...
Auxiliary contact in the valve actuator for the
fully closed position check
d...
Contactor or relay
EK...
Lockout reset button
F
External safety switch
ION
Ionization probe
FR
Flame relay with «fr» contacts
FS
Flame signal
GP
Gas pressure switch
H
Mains isolator
L...
Lockout warning lamp
LK
Air damper
Siemens Building Technologies
HVAC Products
A
P
B
C
AS
D
A
1
2
21
3
13
12
14
1(3)
SB
AL
W
LP
H
2)
EK2
F
L
N
A
P
B
C
D
A
1
2 21
3 13 12 14 4
5
SB
bv...
W
GP
1
R
(3)
H
EK2
2)
AL
F
LP
L
N
2) Do not press EK for more than 10 seconds
4
5
6
7
15
16 17 18
R
M1
M2
Z
BV1
6
7 16
17
18
d1
d2
N
N
BV1
M1
M2
Z
ZBV
7785a02e/1003
LP
Air pressure switch
LR
Load controller
m
Auxiliary changeover switch for the air
damper's MIN position
M...
Fan or burner motor
NTC
Resistor with negative temperature coefficient
QRA...
UV detector
R
Control thermostat or pressurestat
RAR...
Selenium photocell detector
SA
Air damper actuator
SB
Safety limit thermostat
SM
Synchronous motor of sequence switch
v
In the air damper actuator: Auxiliary changeover
switch for release of fuel as a function of the air
damper position
V
Flame signal amplifier
W
Limit thermostat or pressure switch
z
In the air damper actuator: End switch for
the air damper's fully closed position
Z
Ignition transformer
ZBV
Pilot valve
z
m
a
19
20
9
11 10
LR
v
a
z
m
M
SA
BV2
7785a01/1101
z
m a
19
20
9
11
10 8
LR
SA
v
a
z
m
M
BV2
BV3
LK
BV1
BV2
TSA´, t3´, t4´, only with:
LGK16.335
and LGK16.635
1
8
22
24
+
B
RAR7...
LK
1
2
22
23 15
1
5
3 4
1
2
+
M
QRA5...
1)
22
24
ION
13/20
CC1N7785en
15.10.2003
Advertisement
