oventrop Regucor WH Einbau- Und Betriebsanleitung Seite 29

Check valve
The check valve prevents a gravity circulation of the
heating water when the pump is switched off.
closed
Illustr. 21 Check valve
The check valve is closed in operating position; pas-
sage is only possible in flow direction.
When putting the system into operation and during
maintenance work (filling and flushing), the check
valve must be opened.
Actuator
The actuator NR230 of the three-way mixing valve
can be activated via standard control systems with
three point output.
The angle of rotation is limited to 90°.
Having reached the limit stops, the actuator is swit-
ched off electrically and is without current. If the con-
trol system malfunctions, the actuator can be con-
verted to manual operation with the help of an
additional rotary knob.
WARNING
The electrical connection has to be carried out
according to the legal rules
Three point control:
NOTICE
The direction of rotation hot/cold depends on the
installation position of the three-way mixing valve
(supply/return).
Controller
brown
Illustr. 22 Controller
open
blue
white
Technical data:
Operating current
Absorbed power
Protective system
Torque
Operating time
Ambient temperature
Length of cable
Note:
When the circulation pump is switched off, a low
gravity circulation depending on the circulation pres-
sure is still possible within the heating system despite
the check valve as the latter is not tight sealing.
Dimensions
100
Illustr. 23 Dimensions "Regumat M3-130" DN 20
Technical data
Nominal size
Max. operating temperature 120 °C
Max. operating pressure
kvs value
Opening pressure
check valve
Connections
Pump length
230 V 50 Hz
2.5 W
II (shockproof)
5 Nm
140 s
0 °C up to + 50 °C
2.2 m
DN 20
10 bar PN 10
5.1
20 mbar
G1 male thread
flat sealing
130 mm, G1 male
thread
29