5.11
Installation and operation
Oil filter warning: Indicates that the oil filter element
needs to be replaced. The compressor will not
shutdown automatically in this situation.
High discharge temperature warning: The
compressor will shutdown automatically and the
warning light on the controller will glow when the
discharge temperature exceeds the preset value of 110
± 5ºC (230 ± 9ºF).
Main motor overload trip: The compressor will
shutdown when the main motor is overloaded and the
corresponding warning light will glow.
Fan motor overload trip: The fan motor has internal
thermal overload protection, which safeguards the fan
motor. If the fan motor trips discharge oil temperature
will be high and the compressor will trip .
Reset button: This button must be pressed before
restarting the compressor after it has shutdown with a
warning. The machine must be restarted only after
taking necessary remedial measures.
Safety valve: This valve relieves the pressure in the air
-oil separator tank when it exceeds the set pressure.
Refer “Technical data”.
Reverse direction switch: If the motor rotates in the
wrong direction, the reverse direction switch detects
and, in turn, trips off the compressor.
After reaching the maximum cutoff pressure the
pressure sensor senses the pressure and cuts off the
solenoid electrical supply.
5.3.6 Stopping
Press the stop (Red) button in the controller. The
compressor will come to a halt within 10 seconds.
In case of emergency, to stop the compressor, use the
emergency stop switch. Correct the fault, rotate
counterclockwise and unlock the emergency switch.
Then press the reset button before the next start.
Do not use the emergency stop switch for normal
stopping.
Isolate power to the compressor.
Close the air discharge valve.
For water cooled models, close the water inlet valve.
If there is any possibility of freezing exists, drain the
cooling system completely.
5.3.7 Changing the compressor settings
Change the compressor settings using the tactile keypad
and LCD panel on the controller. (Refer to Neuron manual
to learn more about the control panel and how to interpret
of the message.)
Refer the VFD setting procedure manual for VFD
operations.
Model Type
Cutout pressure
bar (psi)
EG 11 -
EG 45
Standard,
Standard +VFD
Working pressure +
0.5 (7)
EG 55 -
EG 160
Standard
Working pressure +
1 (15)
Standard +VFD
Working pressure +
0.5 (7)
Isolate power supply before the discharge ball valve
closes.
Do not use the emergency stop switch for normal
stopping
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