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13
The electrical connection must be carried out
in accordance with the valid regulations!
Technical data:
Operating current
230V 50Hz
Absorbed power
2.5 W
Protective system
II (shockproof)
Torque
5 Nm
Operating time
140 s
Ambient temperature
0 °C - +50 °C
Length of cable
2.2 m
WARNING
!
The direction of rotation hot/cold depends on the
installation position of the three-way mixing valve
(supply/return).
NOTICE
5.5 Actuator
The actuator NR230 of the three-way mixing valve
can be activated via any commercial control system
with a 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. In case of
malfunction of the control system, the actuator can
be converted to manual operation with the help of an
additional rotary knob.
5.6 Three point control
white
blue
brown
Controller
– Mount antirotation device (1) onto the valve body.
– Push adapter (2) onto the spindle of the mixing
valve (3) until stop. Ensure flat surfaces on spindle
and adapter are aligned!
– Set spindle of the mixing valve in such a way that
the nose of the adapter points downwards. In this
position, the downward outlet is closed by the
spindle of the mixing valve (bypass completely
open, cold).
“Nose“
blue
– Set operating switch (8) to manual operation.
– Place rotation indicator (5) onto the actuator (4) as
illustrated.
– Push handle for manual setting (7) onto the shaft
of the mixing valve.
The handle can only be engaged easily in a snap-
in position. Do not use excessive force! Turn
handle for manual setting to the left until stop.
Arrow of the handle is in the blue zone.
NOTICE
– Place actuator onto the shaft of the mixing valve.
– Introduce and tighten screw (6) together with the
serrated lock washer with a torque of > 5 Nm.
– Set operating switch to automatic operation.
The product assemblies are leak tested at works.
When modifying the flow direction, please make
sure that the seals are not damaged and carry
out leak test after modification.
NOTICE
5.8 Modification of the flow direction
5.7 Installation of the actuator
When the circulation pump is switched off, a low
gravity circulation depending on the circulation
pressure is still possible within the heating system
despite the check valve as the latter is not tight
sealing.
NOTICE