The drain pipes to the drain collector must not dip into the water. If the pipes have been
fitted outside the room where freezing is possible, they must be insulated.
7. Check the oil level.
3 to 5 minutes after stopping, the oil level should be between the top of the sight glass (GI)
and the filling point (FC).
Position of oil level sight-glass
8.
If applicable: provide labels, warning the operator that:
• The compressor may automatically restart after voltage failure.
9. Check the voltage between the three phases before using the unit for the first time.
Motor direction arrow
Check the direction of rotation (following the arrow on the coupling housing (1) by pressing
the "Start" button, followed immediately by the emergency stop button.
If it does not spin in the right direction reverse two mains cables. When it rotates in the
correct direction, the oil level should drop after 4 or 5 seconds of operation.
Instruction book
2920 7101 24
69
Summary of Contents for QGS 90
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