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V1
PWM1 Primary circuit pump
PWM2 Recirculation pump
V2
S1
PT1000 Recirculation (S1 optional)
S2
PT1000 DCW (S2)
S3
PT1000 primary circuit (S3)
S4
Puffer high PT1000
Low voltage max. 12VAC/DC
Connection on the left part of
the terminal board!
b
Sensor side
VFS1 connection (*)
SENSOR AND CONTROL
BL
Ma
b
The polarity of the sensors is freely selectable.
b
The connection of the ground must be made to the lower part of the terminal (-)
b
Protection line PE must be connected to the metal clamp PE!
b
R1 relays: use only for standard pump control, 20 VA min. consumption
WIRING DIAGRAM
SENSOR SIDE
TERMINALS
S4
7
S5
Not used
Ground
GND
MA
phase line L / primary pump
BL
Neutral line N / primary pump
(*)
Connect to controller terminal VFS1
Main voltages 230VAC / 50-60Hz
Connection on the right part of
the terminal board!
b
MAIN SIDE 230 VAC
230 V POWER TERMINALS
Line - Cable L.2000 mm
Main side 230 VAC
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