Commissioning; First Commissioning - CompAir L07 User Manual

7. Commissioning

7 Com m issio ni ng
7.1

First commissioning

Danger
Make sure before commissioning that nobody is in
the danger zone of the screw compressor.
Only operate the screw compressor with closed
access panels.
Important
Although every CompAir screw compressor has
been subjected to a test run at the factory and has
again been thoroughly inspected before shipment,
damage during shipment cannot be excluded. For
this reason, every screw compressor should be
checked once again for damage before being com-
missioned. In addition, it should be observed
during the first operating hours.
If the screw compressor is newly connected to a
power supply, check the direction of rotation of the
drive motor!
First commissioning is carried out as follows:
•
Remove transport guards (see chapter 6.4, Fig. 13)
•
Fill oil in the pressure vessel up to "maximum oil
level" mark. (This applies to compressor systems
which are delivered without having been filled with
oil). (Refer to Chapter 9.4 and 9.14 for information
on filling oil).
•
Check the oil level in the pressure reservoir (see
also chapter 6.5). (Fig. 14)
•
Check the setting of the control-power transformer
(see also chapter 6.3). (Fig. 12)
•
Check and re-tighten all connecting terminals of the
electrical control.
•
Open isolator valves between the screw compres-
sor, reservoir and pipe.
•
Operate main power supply switch.
•
Once the power supply has been switched on, the
POWER LOSS
fault appears. This fault must be
acknowledged using the
find more information about the control in chapter 8.
•
The factory setting of the setpoint value for the
network pressure (upper and lower switching point)
is saved in the compressor control DELCOS Pro
and depends on the relevant pressure variant of the
compressor (see nameplate fig. 2, stage pressures
= maximum operating pressure). Chapter 8.5.2
describes how you check these settings or change
the values.
•
Temporarily open the hood to check the direction of
rotation, for specified direction, see (- 1 - Fig. 15)
key (Fig. 16). You will
Important
If the direction of rotation is incorrect, immediately
shut down the unit using the large emergency
STOP button on the control panel (-24- Fig. 3) and

not using the  key (Fig. 16), as otherwise you
may cause serious damage to the compressor,
even if only operated briefly.
The access panels may temporarily be opened for
checking the direction of rotation (wear ear
protectors).
Danger
Beware of rotating parts!
Rotating parts can lead to injuries. Stay at a safe
distance away from rotating machine parts!
Press the START button
check the direction of rotation. With a wrong direction
of rotation, press the red emergency STOP button
(-24- Fig. 3) immediately and correct the direction of
rotation.
Fig. 15
1 Drive motor's direction of rotation
Note
For switching the compressor off "normally", use only

the stop push-button  (Fig. 16), but not the
EMERGENCY STOP push-button (-24- Fig. 3). After
having been switched off, the compressor is aftercooled
for 30 seconds (soft stop).
Temperature start-up protection
The screw compressor unit will not start up if the
ambient temperature is lower than + 1 °C/33.8 °F.

(- 2 - Fig. 16) and
I
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