STIEBEL ELTRON HM Trend - WPM Heat Pump Manager

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INSTALLATION
Power supply
10.3 WPM heat pump manager
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.
 Only use components which have been approved by
us.
X2.2 X2.3 X2.4 X2.5 X2.6 X2.7 X2.8 X2.9 X2.10 X2.11 X2.12 X2.13 X2.14 X2.15
X1.1
CAN A
X1.19
CAN A
X1.18
CAN B
X1.17X1.16X1.15X1.14X1.13X1.12X1.2
CAN B
X1.3 X1.4 X1.5 X1.6 X1.7 X1.8 X1.9 X1.10X1.11
X2.1
D0000071841
Safety extra low voltage
X1.1
CAN A
+
-
L
H
+
-
L
H
CAN (connection for heat pump and WPE heat
pump extension)
X1.2
CAN B
+
-
L
H
+
-
L
H
CAN (connection for FET remote control and
ISG Internet Service Gateway)
X1.3 Signal
Earth
1
2
Outside temperature sensor
X1.4 Signal
Earth
1
2
Buffer sensor (heating circuit sensor 1)
X1.5 Signal
Earth
1
2
Flow sensor
X1.6 Signal
Earth
1
2
Heating circuit sensor 2
X1.7 Signal
Earth
1
2
Heating circuit sensor 3
X1.8 Signal
Earth
1
2
DHW cylinder sensor
X1.9 Signal
Earth
1
2
Source sensor
X1.10 Signal
Earth
1
2
2nd heat generator (2.WE)
X1.11 Signal
Earth
1
2
Cooling flow
X1.12 Signal
Earth
1
2
DHW circulation sensor
X1.13 Signal
Earth
Signal
1
2
3
FE7 remote control/ telephone remote
switch/ heating curve optimisation/ SGReady
X1.14 Constant 12V
Input
GND
+
IN
Analogue input 0-10V
X1.15 Constant 12V
Input
GND
+
IN
Analogue input 0-10V
X1.16 Signal
Earth
1
2
PWM output 1
X1.17 Signal
Earth
1
2
PWM output 2
Safety extra low voltage
X1.18
CAN B
+
-
L
H
+
-
L
H
CAN (connection for FET remote control and
ISG Internet Service Gateway)
X1.19
CAN A
+
-
L
H
+
-
L
H
CAN (connection for heat pump and WPE heat
pump extension)
Mains voltage
X2.1 L
L
N
N
PE
PE
L
L
N
N
Power supply
X2.2 L' (power supply
utility input)
L* (pumps L)
L'
L* (pumps L)
L' (power supply utility input)
L* (pumps L)
X2.3 L
N
PE
L
N
PE
Heating circuit pump 1
X2.4 L
N
PE
L
N
PE
Heating circuit pump 2
X2.5 L
N
PE
L
N
PE
Heating circuit pump 3
X2.6 L
N
PE
L
N
PE
Buffer charging pump 1
X2.7 L
N
PE
L
N
PE
Buffer charging pump 2
X2.8 L
N
PE
L
N
PE
DHW charging pump
X2.9 L
N
PE
L
N
PE
Source pump/ defrost
X2.10 L
N
PE
L
N
PE
Fault output
X2.11 L
N
PE
L
N
PE
DHW circulation pump/ 2nd heat
source DHW
X2.12 L
N
PE
L
N
PE
2ndheat source heating
X2.13 L
N
PE
L
N
PE
Cooling
X2.14 Mixer OPEN
N
PE
Mixer CLOSE
5
N
PE
6
Mixer, heating circuit 2
( X2.14.1 Mixer OPEN
X2.14.2 Mixer CLOSE )
X2.15 Mixer OPEN
N
PE
Mixer CLOSE
5
N
PE
6
Mixer, heating circuit 3
( X2.15.1 Mixer OPEN
X2.15.2 Mixer CLOSE )
Note
For every appliance fault, output X2.10 issues a 230V
signal.
In the case of temporary faults, the output switches the
signal through for a specific time.
In the case of faults that result in a permanent appliance
shutdown, the output switches through permanently.