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Installation
D. - Terminal connection diagrams
S6 V1
V2
+S5 S4 S3 S2 S1 -
PELV
R3I
R3 R2 R1 L N
VFS2 VFS1CAN CAN
D.1. - „With circulation pump“
Danger
Mains side
230VAC
Sensor side
max. 12V
Caution
Mains voltages 230VAC 50-60Hz
Connection in the right-hand terminal
compartment!
Terminal: Connection for:
L Mains phase conductor L
N Mains neutral conductor N
R1 Primary pump (opt.)
R2 Relay 2
R3 Relay 3 (normally open)
R3I Relay 3 (normally closed)
The PE protective conductor must be
connected to the PE metal terminal block!
Low voltage max. 12VAC/DC connection in
the left-hand terminal compartment!
Terminal: Connection for:
S1 Circulation (opt.)
S2 Cold water (optional, see box below)
S3 Primary ow (opt.)
S4 Storage top (opt.)
S5 storage middle (opt.)
V1 0-10V/PWM signal primary pump
V2 0-10V/PWM signal (opt.)
S6 Primary return ow (opt.)
- Terminal connection sensor -
VFS1 Warm water tap
VFS2 optional
The polarity of the sensors is freely selectable.
Relay connection changes depending on the additional functions selected.
Connection of sensor earths (1-6) via terminal block sensor(-)
VFS sensor has to be connected to the socket on the circuit board.
Sensor 2 / Cold water: If no sensor is connected, a temperature of 10° C is set. See also „6.2
Sensor calibration“
12


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