10
Installation
3
3
3.2.2 Electrical terminals of the WPC5
Caution
Left-hand terminal compart-
ment only for low voltage if
max. 12VAC/DC
Danger
Right-hand terminal compart-
ment only for mains voltages
of 230VAC 50-60Hz
Connection on mains voltage side:
- Protective conductor to the PE
metal
block
- Neutral conductor to terminal block N
- Switch outputs terminals R1-R5
-
Mains phase conductor terminal
L (R5I)
Connection on low voltage side:
- Temperature sensors terminals
S1-S6 and terminal block S- (any
polarity)
- Optional digital interface
RS485 terminal Z1/Z2
Observe detailed connection dia-
grams under 3.2.3-3.2.10!
Observe detailed connection dia-
grams under 3.2.3-3.2.10!
Low voltage
max. 12VAC/DC
connection in the left-hand terminal
compartment!
Terminal: Connection
for:
-
Jumper terminal block S-
S1
Sensor 1 outdoor
S2
Sensor 2 heating circuit
S3
Sensor 3 not used
S4
Sensor 4 glycol
fl
ow
S5
Sensor 5 glycol return
S6
Sensor 6 RT21
+
remains unused
Z1
Option: RS485 a
Z2
Option: RS485 b
Use terminal block S- for connecting
the sensor earths of S1-S6. The
polarity of the sensor is freely se-
lectable. S6 RT21 can be connected
as an option.
3.2.3 Electrical connection for hydraulics 1
„Heat pump with heating circuit“
Mains voltage
230VAC 50-60Hz
connection in the right-hand terminal
compartment!
Terminal: Connection
for:
N
Jumper terminal block N
L
Mains phase conductor L
R1
Heating circuit pump
R2 not
used
R3 not
used
R4 Glycol
pump
R5 Compressor
R5I
Phase conductor L for R5
Use terminal block N to connect all
neutral conductors N!
The PE protective conductor must
be connected to the PE metal termi-
nal block!