41
Subject to change without notice | 83054200iUK | ait-deutschland GmbH
LW 251 A
a
b
c
Legend:
Equipement
B10
F1
F2
K3
K4
K5
K10
Q
1
Q
2
Q
5
R50
R51
R52
STB
X10
X12
AEP
HDP
NDP
VBO
VEN
VEN
VD1
VD2
ZW1
-X12
-X10
-X10
-K3
UK
Function
Defrosting pressostat
High-pressure switch
Low-pressure switch
Optocoupler, switching on the fan
Optocoupler, switching on the fan
Optocoupler, switching on the fan
Defrosting valve
Contactor for compressor 1
Contactor for compressor 1
Contactor for auxiliary heating
Voltage divider
Voltage divider
Voltage divider
Safety temperature limiter heating element
Terminal in switch box heat pump
Plug on switch box heat pump (control line)
-K5
817344c
-K4
-X10
-R50
4,64 kOhm
5,62 kOhm
7,50 kOhm
-R51
-R52
-X10
-F1
-Q1
-Q2
-K3
-K4
-K5
-X10
-K10
-STB
-Q5
-F2
-B10
1
23
45
678
12
8
A
B
C
D
E
F
A
B
C
D
E
F
Blatt
Bl.
2
3
3
45
67
AIT
817344
Stromlaufplan
ait-deutschland GmbH
ÄM028/2010
ÄM012/2011
ÄM066/2015
10.08.2010
28.04.2011
15.12.2015
AP
AP
AP
L Reg
/1.A8
E23
/1.B8
GND
/1.B8
0-10V
/1.B8
+10V
/1.B8
DIn
/1.B8
+24V
/1.B8
N Reg
/1.A8
PE
/1.B8
L1
12
L
1
+13
14
MOT
6
27
+13
14
2
+13
14
3
4
5
6
N
11
N
HD
5
HDP
P
VD1
1
A1
A2
VD1
VD2
4
A1
A2
VD2
VBO
10
A1
A2
VBO
VEN
2
A1
A2
VEN
A1
A2
VEN
AV
7
28
ZW1
8
A1
A2
ZW1
ND
3
c4
a1
NDP
P
ASD
9
AEP
P
-X12
Änderung
Datum
Datum
Bearbeiter
Geprüft
Norm
Name
15.12.2015
Pfleger
R.
sw
bl
b2
c4
a1
rt
sw
sw
b2
c4
a1
12P
E
LW 251A
Circuit diagram 2/3
