iNSTaLLaTiON
Specification
46
| WPL 19 | WPL 24 www.stiebel-eltron.com
18.2 Wiring diagram WPL 19 I | WPL 24 I | WPL 19 A | WPL 24 A
X6
X41
X1
P2=3000W
P3=3200W
P1=2600W
K5
3
1
32
22
31
21
T >
F5
E1
12
11
K6
3
1
K7
3
1
L1 L2 L3 N
3 2 1
ON ERR L N
Y1
B12
T
B13
T
B9
T
B11
T
V1
M8
M
M7
M
B2
T
B6
T
B7
T
B8
T
B10
T
B1
T
3
2
1
p
P1
3
2
1
p
P3
3
2
1
p
P4
H L
T
“+”
L
N
M6
M
1~
X29
1
2
3
4
5
6
7
8
9
10
11
12
1 2 3 4 5 6 7
X39
X40
1
2
3
4
5
6
X43
1
2
3
4
X36
4
3
2
1
X35
6
5
4
3
2
1
X34
7
6
5
4
3
2
1
X30
3
2
1
X37
5
4
3
2
1
X38
1
2
3
X33
5
4
3
2
1
A2
(IWS III)
X42
1 2 3
E2
1 2 3 4
A3
L1 L2 L3 PE DC- DC+
OUT OUT
DC-
IN
DC+
IN
RS 485
HD
U V W
A1 A2
X23
X23
X8 / F4
A
B
K5
A
B
K6
A
B
K7
>
p
N3
1 2 3 4
rt sw ge ws
A4
L1 L2 L3
IN IN IN
X23
L1 L2 L3
OUT OUT OUT
A5
DC+
in
DC-
in
DC+
OUT
DC-
OUT
B5
T
X41
S1
1
2
2
2
1
1
S2 S3
U V W
M1
M
3~
X27
L1 L2 L3 N
F4
X8
X23
X23
M6
X5
X3
X4
X7
X2
D0000063891
X28
F3
> p
1 3 5 13
2 4 6 14
K2
A2
A1
K2
D
00000
63
89
1
A2 Integral heat pump control unit (IWS)
A3 Inverter compressor
A4 Filter assembly
A5 DC assembly
B1 Heating flow temperature sensor - KTY
B2 Heating return temperature sensor - KTY
B5 Hot gas temperature sensor - PT1000
B6 Outdoor air temperature sensor - PT1000
B7 Compressor intake temperature sensor - PT1000
B8 Evaporator discharge temperature sensor - PT1000
B9 Frost protection temperature sensor - KTY
B10 Injection temperature sensor - PT1000
B11 Exhaust air temperature sensor - KTY
B12 Condenser outlet temperature sensor - KTY
B13 Oil sump temperature sensor - KTY
E1 DHC
E2 Oil sump heater
F3 High pressure switch 42 bar
F4 Fuse 10 A (fan)
F5 High limit safety cut-out for DHC
K2 Compressor start contactor
K5 DHC relay
K6 DHC relay
K7 DHC relay
M1 Compressor motor
M6 Fan motor
M7 Stepper motor el. Expansion valve
M8 Stepper motor el. Injection valve
N3 Differential pressure sensor
P1 High pressure sensor (45 bar)
P3 Low pressure sensor (16 bar)
P4 Mean pressure sensor (30 bar)
