SPX APV DELTA MS4, Operating Manual, Page: 19 / 51

Diaphragm valve with fan support
DELTA MS4
Operating Manual rev. 0
14
DELTA MS4-UK0.qxp / 05.2008
UK
9. Service Instructions
9.4. Installation of DELTA MS4 valve
1. Design with Control Unit:
Fasten the adapter on the actuator.
Place the control unit
(26) on the adapter (27) and fasten it
with the ring.
Design with valve position indication:
Fasten the housing of the valve position indication (24) .
2 . Version NC: During the assembly of the valve insert
observe the following:
- Control the actuator (version: NC) with pneumatic air min 6bar.
Carefully place the valve insert into the valve housing.
The diaphragm
(5) must not be damaged during the installation
in the valve housing. Tighten the hex. screws (14) crosswise in the
housing flange.
Do not reach for movable parts!
Risk of injury.
!
Version NC: Shut off air supply.
3. Check the basic adjustment of the valve position indication.
- By turning the positioning screw in the control unit, the shift points
can be adjusted.
4. Design with valve position indication :
Push in the proximity switches and fasten them.
- Readjust the proximity switches if necessary.
5. Adjustement of proximity switches: (fig. 9.4)
- Drive the actuator into a limit position.
- Drive the corresponding proximity switch into the corresponding
position. For this purpose release the positioning screw and move
the holder until the corresponding signal is indicated. Then,
continue to slide the holder by 2 to 3 mm in order to secure the
indication. Fasten the positioning screw.
- Position the actuator in the other limit position and carry out
the positioning of the second proximity switch.
- Upper valve position indication: valve NO “normally open”
(air-to-lower, spring-to-raise)
- Lower valve position indication: valve NC “normally closed”
(air-to-raise, spring-to-lower)
positioning screw
limit position
!
proximity switch holder
NC
NO
fig 9.4