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INsTALLATIoN
WPL 19 IK | WPL 24 IK
f Route the bus cable from the function module into the heat
f
pump standard appliance.
f Connect the function module bus cable to the terminal.
f
Power supply
XD03 Power supply (mains)
L', L, N, PE
WW
DHW
The signal for DHW heating can be taken from the "WW" terminal.
When DHW heating is active, 230 V is applied to the terminal.
9.6.3 Connecting external components
WARNING Electrocution
Only components that operate with safety extra low
voltage (SELV) and that ensure secure separation from
the mains voltage supply may be connected to the low
voltage terminals of the appliance.
Connecting other components can make parts of the ap-
pliance and connected components live.
f Only use components which have been approved by
f
us.
Material losses
!
Before connecting the control voltage to the function
module terminal area, you must have connected the XD05
heat pump bus cable connector and the XD01 heat pump
power supply to the heat pump control panel (see chapter
"Specification / Wiring diagram").
www.stiebel-eltron.com
X1.1
X1.2
X1.3 X1.4 X1.5 X1.6 X1.7 X1.8 X1.9 X1.10 X1.11
CAN A
CAN B
X2.1
X2.2
X2.3
X2.4
X2.5
X2.6
X2.7
safety extra low voltage
X1.1
+
+
CAN (connection for heat pump and WPE heat
CAN A
-
-
pump extension)
L
L
H
H
X1.2
+
+
CAN (connection for FET remote control and
CAN B
-
-
ISG Internet Service Gateway)
L
L
H
H
X1.3
Signal
1
Outside sensor
Earth
2
X1.4
Signal
1
Buffer sensor (heating circuit sensor 1)
Earth
2
X1.5
Signal
1
Flow sensor
Earth
2
X1.6
Signal
1
Heating circuit sensor 2
Earth
2
X1.7
Signal
1
Heating circuit sensor 3
Earth
2
X1.8
Signal
1
DHW cylinder sensor
Earth
2
X1.9
Signal
1
Source sensor
Earth
2
X1.10
Signal
1
2nd heat generator (HG2)
Earth
2
X1.11
Signal
1
Cooling flow
Earth
2
X1.12
Signal
1
DHW circulation sensor
Earth
2
X1.13
Signal
1
FE7 remote control / telephone remote
Earth
2
switch / heating curve optimisation / SG Ready
Signal
3
X1.14
Constant 12 V
+
Analogue input 0-10 V
Input
IN
GND
X1.15
Constant 12 V
+
Analogue input 0-10 V
Input
IN
GND
X1.16
Signal
1
PWM output 1
Earth
2
X1.17
Signal
1
PWM output 2
Earth
2
X1.18
+
+
CAN (connection for FET remote control and
CAN B
-
-
ISG Internet Service Gateway)
L
L
H
H
X1.19
+
+
CAN (connection for heat pump and WPE heat
CAN A
-
-
pump extension)
L
L
H
H
Mains voltage
X2.1
L
L
L
L
N
N
N
N
PE
PE
X1.12
X1.13
X1.14
X1.15
X1.16
X1.17
X1.18
X1.19
CAN B
CAN A
X2.8
X2.9
X2.10
X2.11
X2.12
X2.13
X2.14
X2.15
Power supply
WPIC |
35
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