Siemens VALVEGYR LDU11.523A27 - Electrical Connection Diagram; Diagram Legend and Components

10/21
Building Technologies Division CC1N7696en
20.04.2016
Connection diagram
M
~
L
EK2
18
1
SK
1)
AS
ar2
3
4
5
III
6
a
b
I
8
a
b
V
10 12
19
23
20
a
ba
b
XI
hr1
22 21 24
hr2
HR
b
a
XIII
ab
IX
ar1
br1
IV
15
14
16
17
PGP
DW
Atm.
Gas
VII
b
a
VIII
a
b
ar3
b
a
VI
AR
br2
BR
L1
EK1
1
)
13
AL
N
2
7911
SM
LDU11
7696a15/0204
S
i
Legend
AL
Alarm signal for «leaking valve»
AR
Working relay with contacts (ar...)
AS
Unit fuse (built-in)
BR
Lockout relay with contacts (br...)
DW
Pressure switch for valve proving test (does not replace the gas pressure switch used to signal lack of gas)
EK1
Lockout reset button
EK2
Remote lockout reset button
GP
Gas pressure switch (for lack of gas)
HR
Auxiliary relay with contacts (hr...)
L1
Lockout warning lamp (built-in)
Si
External primary fuse
SK
Control contact (for initiating the valve proving test)
SM
Synchronous motor of programming mechanism
1)
Do not press lockout reset button (EK) for more than 10 seconds