51
L1
-X7
L2 L3 PE
1
2
-K0
/2.3
3
4
A1
23
24
A2
L1 L2 L3
T1 T2 T3
-N1
5
6
VD1
/2.1
K1-A1
/2.1
A2
1
2
-K1
/2.4
3
4
M
3
T1 T2 T3 PE
-M1
VD1
5
6
21
22
-K1
/2.4
-R20
A1
23
24
A2
L1 L2 L3
T1 T2 T3
-N2
VD2
/2.1
K2-A1
/2.1
A2
/2.1
1
2
-K2
/2.5
3
4
M
3
T1 T2 T3 PE
-M2
VD2
5
6
21
22
-K2
/2.5
-R21
1
2
-K3
/2.9
4
-X7
I> I>I>
1 3 5
2 4 6
-F3
3
4
5
M
3
U1 V1 W1 PE
-M3
5
6
6 PE
1314
13
2122
13
14
-F3
11
7
-X7
8
L1 L2 L3 12 14
11
-B1
L Reg
/2.1
N Reg
/2.1
ASD
/2.1
B1-11
/2.1
MOT
/2.1
MOT
1
N1
Starting current limit compressor 2N2
MOT
M3
X7
B1
3~PE/400V/50Hz
UK817328
3~PE/400V/50Hz
Sump heating for compressor 1
Phase sequence relay; if phase sequence in the order of 11 + 14 is closed
2
2
M1
R20
BOSUP
Bypass contactor compressor 2
Starting current limit compressor 1
1
Power supply compressor; right-hand rot. field is mandatory!
Terminal strip in switchbox of heat pump; N/PE distribution for external 230V units
Compressor 1
M2
Motor protection switch, well / brine pump
Contactor, well / brine pump
K2
Well / brine pump provided by customer
R21
Connection of external motor protection; bridge if no external motor protection can be connected.
X7:7,8
VD2 Compressor 2
Sump heating for compressor 2
Mains contactor, condenser
VD1
K3
Bypass contactor compressor 1VD1
K0
Function
Legend:
VD2
Operating materials
K1
F3
We reserve the right to make technical changes.
UK830509/200114 © Alpha-InnoTec GmbH
SWP 430 · SWP 270HCircuit Diagram 1/3