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4.2.4
Installing the valve position sensor
The valves of the
Airmix™
must be controlled by a climate computer. A valve position sensor must be
installed on one
Airmix™
per section to give feedback on the actual position of the valves to the
climate computer. In practice, a greenhouse might be divided into multiple sections, where each
section has its own climate control. This
is why one Airmix™ in each section has to be equipped with a
valve position sensor. The v
alve position sensor must be mounted before the Airmix™ is suspended.
The valve position sensor must be mounted as follows:
-
make sure you have the proper tools and equipment:
Quantity Description
1
Battery impact wrench
1
5.5mm drill
2
8mm open-ended wrench
2
10mm open-ended wrench
2
13mm open-ended wrench
1
5mm hex key
-
make sure that the valve position sensor can be installed safely
–
get help if necessary;
-
what you will need for each valve position sensor:
Quantity Description
Item number Number in Figure 13
1
Valve position sensor 60°
11012451
6
1
Attachment bracket
55014350
9
1
Lever
55014360
7
1
Stainless steel M5x20 hexagonal bolt
57005340
3
2
Stainless steel M5 lock nut
57004120
5
4
Stainless steel M5 washer
57001120
4
1
Stainless steel M5x25 internal hexagonal
countersunk bolt
57020215
8
1
Stainless steel M8x35 hexagonal bolt
57005960
10
1
Stainless steel M8 lock nut
57004140
12
4
Stainless steel M8 washer
57001140
11
-
installation (see Figure 12 and Figure 13);
o
drill two holes with 5.5mm diameter in the Airmix housing (see Figure 12);
o
mount the valve position sensor by securing two M5 nuts and M5 washers from the
inside of the Airmix (if necessary, temporarily remove the top valve);
o
close the valves / set the valves to horizontal, and keep in place by securing a pivot
point (2);
o
mount the attachment bracket (9) behind the rail of the actuator (1) with the M8x35
bolt (10), M8 washers (11) and M8 lock nut (12) (replace the M8x30 bolt);
o
attach the lever (7) to the end of the spindle of the valve position sensor with the
M5x20 bolt (3), M5 washer (4) and M5 lock nut (9). Make sure that the countersunk
hole points towards the
Airmix™
housing.
o
mount the lever to the attachment bracket with the M5x25 countersunk bolt (8), M5
washers (4) and M5 lock nut (5);
o
release the secured pivot point (2).