WWW.STIEBEL-ELTRON.COM WPF 20/27/40/52/66 | 19
14.2 Wiring diagrams for heat pump WPF 20 | 27
8
X2
K1
A2
A1
6
7
Q1
2
1
6
5
4
3
L
1 1
2
1
s u B
Hei ß gas
12
10
9
8
7
H
Einfrierschutz
3
HD/ND
Solepumpe
N
5
4
3
2
1
3
4
5
L
M1
M
3
X3
X5
A2
9
10
1 1
12
13
X1
F ü r e l h
2
1
L1
L2 L3
N
K4
6
4
2
1 3 5
K1
6
4
2
1 3 5
14
L
N
X4
euetS.txE
r .
1/N /PE AC 50Hz 230V
F2
> p
2
3/N/PE AC 50Hz 400V
3/N/PE AC 50Hz 400V
3 2 1
4
5
X23
X34
N3
X23
X29
X33
X30
2 1
1
X24
X24
C
T1
S
T2
R
T3
L1
L2 L3
N
K4
A1
A2
Q1
A2
A1
Q1
2
4
6
5
3
1
L3
L2
L1
T1
T2
T3
A1
A2
T <
E2
1
2
3
Anschluss Solepumpe
L
H
Kleinspannung
BUS
B6
B6
N O
F9
Z2
6
4
2
1 3 5
br ws sw
br ws sw
3
4
5
2
1
X35
6
P
I
P
I
P3
P1
1
1
2
2
12-18V
X28
B5
3
rungötS
26�03�01�0853�d
A2 Integral heat pump controller IWS II
B5 Hot gas temperature sensor
B6 Frost sensor (only for ext. inst. or inst. in a room
not free from the risk of frost)
E2 Oil sump heater
F2 High pressure limiter
F9 Solar pump MCB
K1 Safety contactor
K4 Brine pump contactor
M1 Compressor motor
N3 Temp. controller - oil sump heater
P1 High pressure transducer
P3 Low pressure transducer
Q1 Softstart contactor
X1 Terminals
X2 LV terminal
X3 Heat pump - mains
X4 Control voltage terminals
X5 Brine pump terminals
X23 Power supply earth terminal block
X24 Power supply earth screw
X28 Plug-in connector terminal strip
X29 Plug-in connector IWS II 12-PIN
X30 Plug-in connector IWS II 3-PIN
X33 Plug-in connector IWS II 5-PIN
X34 Plug-in connector terminal strip - oil sump
heater
X35 Plug-in connector IWS II 6-PIN
Z2 Supressor elemen
INSTALLATION
SPECIFICATION
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