Putting A Decommissioned Compressor Back Into Operation; Display Of The Compressor Controller; Routine Commissioning - Gardner Denver L Series Service Manual

8.2 Putting a decommissioned
compressor back into operation
Before commissioning the compressor all the electrical
and electronic components and units should be
checked for the ingress of water or condensation.
If the electronic control system was removed during
shut down, it must be re-installed.
Then proceed as described in chapter 8.1 'First
commissioning'.
8.3

Display of the compressor controller

Fig. 15
1. Touchscreen Display
2. Start push-button [ I ]
3. Stop push-button [ O ]
4. Emergency Stop
WARNING
8.4
For routine commissioning, proceed as follows:

Check the oil level in the pressure reservoir
(also see Section 7.5)

Open shut-off valves between the screw
compressor, reservoir and pipe.

Turn on the main power supply switch.

After the power supply was switched on, the
compressor controller will boot to the home screen.
The fault shown on the display [power supply fault]
must be acknowledged in the alarm screen prior to
starting the unit.

After the acknowledgement, the message [READY TO
START] appears on the display, unless another fault is
present.

Press START button [I] (- 2 - Fig. 15).

To switch off the compressor in the usual way use the
STOP button (-3- Fig. 15) and not the emergency
STOP button (-4- Fig. 15). After shutdown the
compressor has a run on time of 30 - 50 seconds
(soft-stop). The time remaining is counted down on the
display.
Temperature start-up protection
The screw compressor unit will not start up if the ambient
temperature is lower than 34°F.
13-25-638 v03 Page 36

Routine commissioning

WARNING