The level shall be slightly above the middle of the sight glass (g, 76).
●
Check on the sight glass (g, 76) that the proper amount of oil is
filled
Connecting Electrically
WARNING
_ab
Risk of electrical shock, risk of damage to equipment.
Electrical installation work must only be executed by qualified per-
sonnel that knows and observes the following regulations:
- IEC 364 or CENELEC HD 384 or DIN VDE 0100, respectively,
- IEC-Report 664 or DIN VDE 0110,
- BGV A2 (VBG 4) or corresponding national accident prevention
regulation.
CAUTION
_a
The connection schemes given below are typical. Depending on the
specific order or for certain markets deviating connection schemes
may apply.
Risk of damage to the drive motor!
The inside of the terminal box shall be checked for drive motor con-
nection instructions/schemes.
●
Electrically connect the drive motor
●
Connect the protective earth conductor
Delta connection (low voltage):
Star connection (high voltage):
CAUTION
_a
Operation in the wrong direction of rotation can destroy the
compressor in short time.
Prior to starting-up it must be made sure that the compressor is op-
erated in the proper direction.
●
Determine the intended direction of rotation with the arrow (a)
(stuck on or cast)
●
“Bump” the drive motor
●
Watch the fan wheel of the drive motor and determine the direc-
tion of rotation just before the fan wheel stops
If the rotation must be changed:
◆
Switch any two of the drive motor wires
●
Electrically connect the motor (e) of the separate fan
Connecting Lines/Pipes
●
Connect the suction line
Installation without suction line:
◆
Make sure that the gas inlet (b) is open
●
Connect the pressure line
●
Make sure that all provided covers, guards, hoods etc. are
mounted
●
Make sure that cooling air inlets and outlets are not covered or ob-
structed and that the cooling air flow is not affected adversely in
any other way
Recording of Operational Parameters
As soon as the compressor is operated under normal operating
conditions:
●
Measure the drive motor current and record it as reference for fu-
ture maintenance and troubleshooting work
Operation Notes
Use
CAUTION
_a
The compressor is designed for operation under the conditions de-
scribed below.
In case of disregard risk of damage or destruction of the compressor
and adjoining plant components!
Risk of injury!
The compressor must only be operated under the conditions de-
scribed below.
The compressor is intended for
–
the compression
of
–
air and other dry, non-aggressive, non-toxic and non-explosive
gases
Conveying media with a lower or higher density than air leads to an in-
creased thermal and/or mechanical load on the compressor and is per-
missible only after prior consultation with Busch.
Max. allowed temperature of the inlet gas: 40 °C
Standard-version:
The gas shall be free from vapours that would condensate under
the temperature and pressure conditions inside the compressor.
Version “Aqua”:
The compressor features the corrosion protection coating CPC and
is capable of conveying water vapour (
Ú
page 7: Conveying
Condensable Vapours). Conveyance of other vapours shall be
agreed upon with Busch. Conveyance of water or other liquids in
liquid phase increases the power consumption and shall therefore
be avoided (risk of drive overload).
The compressor is intended for the placement in a non-potentially ex-
plosive environment.
The compressor is thermally suitable for continuous operation
(100 percent duty).
Max. permissible number of startings per hour: 12
The maximum allowed pressure on the pressure connection (i) is
0.8 ... 2.0 barg (the nameplate of the compressor indicates the valid
pressure). By means of process control and/or pressure relief valves it
Installation and Commissioning
MI 1502 BP
page 6
0870152627 / 101117