6
Important!!
The compressor unit is equipped with additional oil cooler therefore, after an oil change, the
oil level may vary from the oil quantity specified in the operating instructions.
Important!!
The function of the non-return valve installed in the compressor unit is to prevent the
compressor, after having been switched off, from running in reverse at high speed for a long
time as a result of residual pressure that exists in the discharge lines of the pneumatic
system.
To avoid an unintended return blow of material into the compressor, it is mandatory that at
least one further non-return valve is installed in the pneumatic system of the silo
arrangement.
1.6
Installation procedure
In addition to the general technical operating instructions per the regulations of the local
authorities, special attention is drawn to the following guidelines:
Use suitable hoisting equipment which fulfils the local safety regulations for the
handling of the compressor unit. Securely fasten all loose or winging parts prior to
handling. Do not stand in the area of danger of a lifted load.
Remove all blank flanges, plugs and caps prior to installation of the piping. Ensure
that the distribution pipes and pipe connections are of the correct size and suitable for
the respective operating pressure.
Install the unit in a place where the ambient air is as cool and clean as possible. If
needed, provide for a suction duct. Never block the air inlet. The sucked-in air must
not contain any flammable vapours or gases which might cause a fire or an
explosion.
Do not remove or modify any safety devices, protective covering or lagging. Protect
any pressure tanks or accessory installed outside the compressor unit for storing
compressed air by means of separate safety valves.
The electrical connections must fulfil the local regulations. The compressor units must
be grounded and protected against short circuits by means of fuses.
If operation by remote control is provided for, a clearly visible sign must be attached
to the unit reading the following:
Caution !!
This unit is operated by remote control and might start without prior warning.
Make sure that the electrical connection is interrupted when conducting
maintenance and/or repair work.
Important!!
Two U-locks are provided for the catches of the hinged sound cover as protection against
rotating components. Keep the keys of the U-locks in a safe place. Trained and authorized
staff only should be allowed to unlock and open the sound covers during standstill of the
compressor unit.
