Commissioning - Gardner Denver ESM 30 Original 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 Gardner Denver 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 commissioned. 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 8.4 and 8.13 for information
on filling oil).
Check the oil level in the pressure reservoir
•
(see also chapter 6.4). (Fig. 14)
Check the setting of the control-power transformer
•
(see also chapter 6.3).
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.
•
36
After the power supply was switched on, all LEDs
•
on the compressor control GD Pilot MK light up for
a display test. The fault shown on the display
[FAULT POWER LOSS] must be acknowledged
before the unit can be started. To this end, press the
acknowledgement pushbutton [Θ] (- 4 - Fig. 16).
After the acknowledgement, the message [READY
•
TO START] appears on the display unless another
fault is present.
The factory setting of the setpoint value for the
•
network pressure (upper and lower switching point)
is saved in the compressor control GD Pilot MK and
depends on the relevant pressure variant of the
compressor (see nameplate 0, stage pressures =
maximum operating pressure). These settings can
be checked or changed in the [CONTROL MENU] of
the compressor control GD Pilot MK (see operating
instructions, chapter 1 of the compressor control
GD Pilot MK).
Temporarily remove the panel in order to check the
•
direction of rotation; for the prescribed direction of
rotation, see (- 1 - Fig. 15 a) for the direction of
rotation of the drive motor of the geared compressor
and (- 1 - Fig. 15 b) for the 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 c). The proper
rotation direction of the fan motor can also be
checked on the basis of the cooled airflow direction
(- 1 - , - 2 - Fig. 15 c).
Important
With a wrong direction of rotation, shut down the
unit immediately by pressing the emergency STOP
button (-1- 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).
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 [ I ] (- 2 - Fig. 16) and
check the direction of rotation. With a wrong direction
of rotation, press the emergency STOP button
(- 1 - Fig. 16) immediately and correct the direction of
rotation.