11
Low voltage side
max. 12V
Caution
Danger
Mains side
230VAC
Mains voltage
230VAC 50-60Hz connection
in the right-hand terminal compartment!
Terminal: Connection for:
L
Mains phase conductor L
N
Mains neutral conductor N
R1
Valve (storage middle)
R2 Circulation
pump
R3 Mixer
open
R4 Mixer
close
R5 heat
requirement
R5I heat
requirement
The PE protective conductor must be connec-
ted to the PE metal terminal block!
Connection of relay lead N via terminal block
Sensor N.
Low
voltage
max. 12VAC/DC connection in
the left-hand terminal compartment!
Terminal: Connection
for:
S1 Primary
return
S2 Circulation
S3 Storage
middle
S4 Primary
fl
ow
S5
VFS hot water
(VFS
yellow)
S6 VFS
fl
ow l/min
(VFS
white)
+
VFS +5V DC
(VFS
brown)
-
jumper terminal block-
Z1
GND
Z2 0-10V
Pumpe
The polarity of the PT1000 sensors is freely
selectable.
Connection of sensor earths (S1-S4) and
VFS via terminal block sensor S-
The potential free relay R5 is always switched on for the heat requirement when the
0-10V output is switched on.
Relay 5 can only be used with mains voltage of 230VAC. Never use with low voltage.
The storage zone valve at R1 is switched on and directs energy to the middle of the
storage when S1 > S3.
Caution
Caution
Installation
D Terminal connection diagram