11
Caution
Left-hand terminal compart-
ment only for low voltage if
max. 12VAC/DC
Danger
Right-hand terminal com-
partment only for mains volt-
ages of 230VAC 50-60Hz
Low voltage
max. 12VAC/DC connection
in the left-hand terminal compartment!
Terminal: Connection
for:
-
Jumper terminal block S-
S1 Outdoor
S2 Flow
S3 Storage
(optional)
S4 Roomtemp.sensor
RC22
S5
Humidity sensor RC22
S6 Remote
adjuster*
+
12VDC RC22
Z1 Dehumidi
fi
er
Z2 Dehumidi
fi
er
pot.free. relay, only
low voltage max 24V
Use terminal block S- for connecting the
sensor earths of S1-S6.
The polarity of the sensors is freely se-
lectable.
Mains Voltage
230VAC 50-60Hz connec-
tion in the right-hand terminal compartment.
Terminal: Connection
for:
N
Jumper terminal blockN
L
Mains phase conductor L
R1
Heat circuit pump
R2 Mixer
open
R3 Mixer
close
R4 Cooling/Heating
mode**
R5 add.
heating/cooling
R5I add.
heating/cooling
The PE protective conductor must be con-
nected to the PE metal terminal block!
Relay R4 and R5 optional
Connections Mains Voltage:
- Protective conductor PE metal terminal
block
- Neutral conductor terminal block N
- Mains phase conductor L
- Switch output R1-R4
- Floating contact at R5/R5I
Caution: Only suitable for 230V!
Connections low voltage:
- Temperature sensors S1 - S6 and
jumper terminal block S- (polarity freely
selectable)
- Only connect potential free relay to Z1
and Z2, max 24V
Installation
* please note: When Remote Adjuster RC22 or an external potential free thermostat is
connected, the bridge at S6 has to be removed.
C.4. - Electrical terminals
** R4 on = Cooling mode, R4 off = Heating mode.