10
Installation
3
3
3.2.2 Electrical terminals
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
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 not
used
S4 not
used
S5
Sensor 5 indoor sensor
S6
Sensor 6 remote adjuster
+ not used
Z1
Option / add. function
Z2
Option / add. function
Use terminal block S- for connec-
ting the sensor earths of S1-S6.
The polarity of the sensors is freely
selectable.
Mains Voltage
230VAC 50-60Hz
connection in the right-hand terminal
compartment.
Terminal: Connection
for:
R1
Heating pump L
N
Heating pump N
L
Mains phase conductorL
N
Mains phase concuctorN
R2
Mixer open L
N
not used N
R3
Mixer close L
N
Mixer N
The PE protective conductor must
be connected to the PE metal terminal
block!
* Note: If the remote adjuster RC21 or
a different external
fl
oating thermostat
is connected, the bridge at S6 has to
be removed.