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8 Commissioning
33
8.2
Putting a decommissioned
compressor back into operation
Before commissioning the compressor, check all the
electrical and electronic components and units for the
ingress of water or condensation
Re-install the electronic control system, if it was
removed during shut down.
Then proceed as described in Section 8.1 'First
commissioning'.
NOTICE
Only for L23RS-L29RS: If the compressor has
been in storage for a substantial period of time
(up to 2 years), switch the main power supply
switch on (ON) at least one (1) hour prior to
commissioning. This ensures the operability of
the capacitors and prevents any damage from
occurring.
If the compressor has been in storage for
longer than 2 years, please contact an
authorized Gardner Denver Distributor prior to
start-up.
8.3
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!
Carry out routine commissioning as follows:
•
Check the oil level in the pressure reservoir
(also see Section 7.3.1).
•
Open the isolating valves between the screw
compressor, reservoir and pipework.
•
Turn on the main power supply switch .
•
Once the power supply has been switched on, the
POWER LOSS
fault appears. This fault must be
acknowledged using the button
(Fig. 20, page 34).
•
Press the Start button
I
(Fig. 20, page 34).
•
In general, use the Stop button to shut off the
compressor
(Fig. 20, page 34) and not the large
EM-STOP button at the control panel. The
compressor is cooled for 30 seconds after being
switched off (SOFT STOP).
Electric motor start protection
The screw compressor will not start if the final
compression pressure is larger than 11 PSI.
Start protection temperature
The screw compressor will not start if the ambient
temperature is less than 33.8 °F.
8.4
Commissioning after a fault
After the machine has automatically shut
down due to a fault, re-commission as follows:
•
Turn off the main switch
•
Rectify the fault
•
Turn on the main switch
•
Press the acknowledge button
(Fig. 20, page 34)
•
Start the screw compressor with the Start button
I
(Fig. 20, page 34).
8.5
Shutoff
To switch off the compressor use the O key (-3- Fig. 20)
and not the EMERGENCY STOP button. After shutdown
the compressor has a run on time of 30-50 seconds (soft-
stop).
NOTICE
The unit may only be shut down using the
emergency off button in real emergencies.
When shutting down normally, please use the
key.
8.6
Emergency stop
The EMERGENCY STOP button is situated next to the
DELCOS Pro. It is used to immediately shut down the
unit. Only use the EMERGENCY STOP button
(- 1 - Fig. 18) to shut down the unit in emergencies.
When shutting down normally, always use the [O] key.
Summary of Contents for L23
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