40
– Press the manual override button a and keep it
pressed. Press the lock catch
b
on the left hand
side of the manual override button to lock the
pressed override button, see illustr. 5.
– Release manual override button
a
by pressing it
once.
– Remove rotary handle from the actuator.
NOTE!
Positioning of the actuators:
The master actuator no. 1 is mounted onto the
ball valve nearest to the distribution box. The slave
actuators 2, 3 and 4 are mounted in sequence.
This sequence must strictly be followed!
See system example 4.5.
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a
6.3 Fitting of the actuators onto the ball valves
–
The transformer for the actuators must not yet
be connected to the power supply.
– The actuators are addressed and carry the following
markings on the lateral right hand side:
Master = 1
Slave = 2 / 3 / 4
– Each actuator must only be used once within
one cascade.
– The actuators open through an anticlockwise
rotation and close through a clockwise rotation.
– The actuator is disengaged by pressing the manual
override button
a
; manual adjustment of the actuator
is possible in this position, see illustr. 4.
Illustr. 4: Manual override button
– Set internal gear to the “open” position by turning
the rotary handle anticlockwise.
– Now the rotary movement limiter (sheet metal ring
with stop dogs) has to touch the left stop, see
2
in
the below sketch:
a
Illustr. 5: The manual override button
a
was pressed
and locked with the help of the lock catch
b
.
The actuator is disengaged.
b
– Press the aligned actuator in a vertical position
(writing faces upwards) onto the aligned and
vertically mounted ball valve whilst holding the
mechanical stop ring tight.