Siemens LFS1.11A2

44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
website: https://www.add-furnace.com/ โทร: 02-888-3472
Line ID: @add11 Wechat ID: add0883001122
Connection diagram and internal diagram
LFS1.1 with RAR9
HS
L
N
T / B
12 10
6
1 L
EK
LFS1.1...
FR
fr1 fr2
HR LED
hr1
Si
11
9
7
BCI
2 N
3
4
5
0...10 V
RAR9...
7782a07/0415
Note!
Β The test mode switchover (T/B) is only required in conjunction with the control
unit LEC1. Otherwise terminal 6 of the LFS1 must be connected directly to the
phase conductor «L» at terminal 1 in this case.
Key
BCI
Communication interface
HS
All-polar main switch
(Burner Communication Interface)
ION
Ionization probe
EK
Lockout reset button (internal)
LED
Internal LED (three-colored)
FS
Flame signal
QRA
UV flame detector
FSV
Flame signal amplifier
RAR9
Photocell detector
FR
Internal flame relay
Si
Internal fuse
fr1
Flame relay NO contact
T/B
Flame signal amplifier test mode switchover
fr2
Flame relay NC contact
(QRA, RAR9: Only required in case of replacement by
HR
Internal auxiliary relay (test mode switchover)
LEC1
hr1
Auxiliary relay NO contact
0...10 V
Voltage output for outputting flame signal strength
+
Terminal labeling on QRA
23/40
Building Technologies CC1N7782en 18.04.2018