Routine Commissioning; Commissioning After Malfunction - Gardner Denver L Series Original User And Service Manual

WARNING
The compressor can be automatically started at any time when it is in enabled mode.
8.4

Routine commissioning

WARNING
Rotating parts inside the unit may lead to injuries, e.g., cutting of finger or hand.
 Before commissioning make sure that no one is located in the danger zone of the motor/screw
compressor!
 After doing work: Check that all safety equipment is reinstalled and that all tools have been
taken out!
 Only operate the screw compressor with the coverings closed!
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.

Ensure cooling water supply in accordance with Section 7.3. (only water-cooled units).

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.
8.5

Commissioning after malfunction

NOTICE
Do not switch the screw compressor on repeatedly without having rectified the malfunction, since this may
cause considerable damage to the machine.
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