Siemens LEC1 Series - Basic Diagram; Basic Diagram Overview

11/17
Building Technologies CC1N7761en
HVAC Products 19.02.2007
Basic diagram
P(R)
H
1
EK2*
16
N (Mp)
2
Z
65
BV1
(BV1)
BV2 BV3
M2
M
~
L2
10 7 11 17 12
18
19
LP
P
8
P
T
T
9
R
W
GP
P (R)
7
3
5
6
4
7
6
5
43
13 14 15
4
FW
N
M
~
M1
3
(11)
22 21
~
N
LK
20
yz
AS
br1
VIII
b
IX
a
ar1
EK1*
ar3
ab
XIII
UL3
a
VIII
hr11
IX
b
NTC
X
hr21
a
II
b
XI
hr12
AR
br2
BR
HR2
IV
b
UL2
III
HR1
VII
V
I
ab
ba
XII
VI
IV
a
ar2
UL1
SM
L1
7761a01/1102
SB
* Do not press EK… for more than 10 seconds!
P(R)
H
10
13
3
7
hr3
2
4
N(Mp)
14
LEC1...
6
1
5
HR3
9
FR
L3
8
7761a02/0207
LFE10...
15 LEC1...
+
QRA...
ION
10
6
9
8
LAE10
+
RAR...
When using UV detector QRA..., terminal 10 must be connected to earth!
LAE10... / LFE10...