17
Low voltage max. 12VAC/DC connection
Terminal: Connection for:
S1 (2x) Sensor 1 fl ow
S2 (2x) Sensor 2 storage
S3 (2x) Sensor 3 (optional)
The polarity of the sensors S1-S3 is freely selectable.
V1 / - 0-10V or PWM +/- (STDC Version 3+4)
Mains voltages 230 VAC 50-60Hz
Terminal: Connection for:
L Mains phase conductor L
N Mains neutral conductor N
R stop valve phase conductor L
N stop valve neutral conductor N
R
Break contact (STDC Version 1+3)
The PE protective conductor must be connected to
the PE metal terminal block!
Low voltage max. 12VAC/DC connection
Terminal: Connection for:
S1 (2x) Sensor 1 control
S2 (2x) Sensor 2 reference
S3 (2x) Sensor 3 (optional)
The polarity of the sensors S1-S3 is freely selectable.
V1 / - 0-10V or PWM +/- (STDC Version 3+4)
Mains voltages 230 VAC 50-60Hz
Terminal: Connection for:
L Mains phase conductor L
N Mains neutral conductor N
R Pump phase conductor L
N Pump neutral conductor N
R
Break contact (STDC Version 1+3)
The PE protective conductor must be connected to
the PE metal terminal block!
Brief description of switching
function: The T function sen-
sor 1 > sensor 2 switches the
pump at relay R.
Installation
D.8 Stop valve
D.7 Universal ΔT controller
Sensor side
max. 12V
Caution
Mains side
230 AC
Danger
Sensor side
max. 12V
Caution
Mains side
230 AC
Danger
Brief description of switch-
ing function: The T function
sensor 1 > sensor 2 switches
relay R.