2. Carefully insert the sensor
3
of the control module
2
in the opening
4
at the service unit.
3. Place the snap fastener
5
of the control module into the service unit eyes.
4. Press the control module to the service unit until the snap fastener can be heard to click into
place.
5. At the screw-in part
11
, replace old sealing material with new sealing tape.
6. Install the screw-in part in the service unit.
7. If necessary, insert a new O-ring
10
.
8. Tighten the union nut
13
at the shut-off valve
9
.
9. Attach the condensate hose.
10. Open the shut-off valve upstream of the condensate drain.
11. Close the enclosure.
10.18 Air receiver maintenance
Condensate is removed automatically by the refrigeration dryer's condensate drain. A dirt trap pro‐
tects the condensate drain from contamination that would impair its function. The condensate drain
only functions when the dryer is in operation.
➤ Condensate can be drained manually from the air receiver when the dryer is not operat‐
ing.
Material If required:
Dirt trap strainer
O-ring
Fig. 34 Air receiver maintenance
1
Dirt trap
2
Strainer
3
Screw plug
4
O-ring
6
Male hose fitting
7
Shut-off valve
A
Shut-off valve open
B
Shut-off valve closed
8
Maintenance hose
9
Hose coupling for condensate drainage
11
Shut-off valve for condensate drainage
Cleaning the dirt trap
Precondition The power supply disconnecting device is switched off,
the device is locked off,
a check has been made that no voltage is present.
User's shut-off valve between the machine and the air network is closed.
The machine is completely vented to atmospheric pressure,
i.e. both pressure gauges
2
and
9
(see Fig 23) are showing 0 psig.
10 Maintenance
10.18 Air receiver maintenance
80
Operator Manual Screw Compressor
AIRTOWER 3C–7.5C Tri-Voltage
9_6917 34 USE
