Commissioning; First Commissioning - CompAir L15 Operating And Service Manual

7. Commissioning

7 Com m issio ni ng
7.1

First commissioning

Warning
Make sure before commissioning that
nobody is in the danger zone of the screw
compressor.
Important
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!
The screw compressor unit is completely factory-
assembled. It can be directly connected to the com-
pressed air mains by means of a flexible connection.
First commissioning is carried out as follows:
Remove transport guards, if fitted.
•
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 9.15 for information
on filling oil).
Check the oil level in the pressure reservoir (see
•
also chapter 6.5). (Fig. 14)
Check settings of the fan motor protection switch
•
(L90RS - L132RS only) (see also chapter 6.4.1)
Check the setting of the control-power transformer
•
(see also chapter 6.4.2).
Check and re-tighten all connecting terminals of the
•
electrical control.
Open isolator valves between the screw compres-
•
sor, reservoir and pipe.
Ensure cooling water supply in accordance with
•
Chapter 6.3. (only Lxx W – water-cooled units).
Operate main power supply switch.
•
34
After the power supply was switched on, all LEDs
•
on the compressor control DELCOS XL light up for
a display test. The fault shown on the display [power
supply fault] must be acknowledged in the fault
memory menu item prior to starting the unit. (The
display language can be set in the start screen
using the "globe icon".)
The factory setting of the setpoint value for the
•
network pressure (upper and lower switching point)
is saved in the compressor control DELCOS XL and
depends on the relevant pressure variant of the
compressor (see nameplate fig.1, stage pressures =
maximum operating pressure). These settings can
be checked or changed in the compressor control
DELCOS XL menu [Settings; Pressure range, p1]
(further information can be found in section 5 of the
compressor control DELCOS XL operating manual).
Only L90-L140: Temporarily remove the panel in
•
order to check the direction of rotation. See (-1- Fig.
15) for the prescribed direction of rotation of the drive
motor of the geared compressor. See (-1 Fig. 15 a)
for the prescribed direction of rotation of the drive
motor with direct drive. For the prescribed direction of
rotation of the fan, see direction of rotation arrow on
the fan (-3- Fig. 15 b and c).
Important
With a wrong direction of rotation, shut down
the unit immediately by pressing the emergency
STOP button (-7- Fig. 16) (not the [O]), otherwise
the compressor may be seriously damaged,
even during short periods of operation.
The access panels may temporarily be opened
for checking the direction of rotation (wear ear
protectors).
Warning
Beware of rotating parts! Rotating parts
can lead to injuries. Stay at a safe
distance away from rotating machine
parts!
Press the START button [ I ] (- 2 - Fig. 16) and
•
immediately check the direction of rotation. With a
wrong direction of rotation, immediately press the
emergency STOP button (-7- Fig. 16) and correct
the direction of rotation.
Next check the control transformer output voltages
•
while operating under load (see section 9.9).
Note
For switching the compressor off "normally", use only
the stop push-button (- 3 - Fig. 16), but not the
EMERGENCY STOP push-button (- 7 - Fig. 16).
After shutdown the compressor has a run on time of
30-50 seconds (soft-stop).