2. Switch on the voltage. Start the compressor and stop it immediately. Check the rotation direction of
drive motor (M1) while the motor is coasting to a stop. The correct rotation direction of the drive
motor is indicated by an arrow shown on the motor fan cowl.
If the rotation direction of the drive motor is incorrect, open the isolating switch and reverse two
incoming electric lines.
Incorrect rotation direction of the drive motor may cause damage to the compressor.
3. Check also the rotation direction of the fan motor. Rotation arrows, visible through the grating in the
roof, are provided on the plate below the fan to indicate the correct rotation direction of the fan motor.
If the rotation direction of the fan motor is incorrect, open the isolating switch and reverse two
incoming electric connections at the terminals of circuit breaker (Q15).
4. Check the programmed settings. For compressors equipped with an Elektronikon® controller, consult
section Programmable settings.
5. Check the programmed settings. For compressors equipped with an Elektronikon® Graphic
controller, consult section Programmable settings.
6. Start and run the compressor for a few minutes. Check that the compressor operates normally.
7. Check that the outlet temperature doesn’t rise too much after start-up. The unit will shutdown when
the outlet temperature is 65°C (149°F) above the inlet temperature.
7.2 Before starting
Procedure
1. If the compressor has not run for the past 6 months, it is strongly recommended to improve the
lubrication of the compressor element before starting. See section Initial start.
2. Check oil level. Top up if necessary.
Instruction book
142 2920 7180 30
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