Engineering manual - SAB 193-233-283 S A-frame (including ATEX)
008831 en 2020.10
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Signs and warnings
2.8 Signs
All signs which may be found on your equipment are shown below. The number of signs, however,
may vary from one product to another.
Risk of electric shock
High voltage/
High pressure
High surface
temperature
(about 70°C)
The compressor may be
top-heavy
Internal overpressure
Hazardous substance Cold surfaces
Dangerous noise level,
use hearing protectors
Do not step on surface No open flame Flammable gas
The unit IS filled with re-
frigerant R290
Internal protection Pacemaker users keep out
Compressor blocks and units are usu-
ally delivered without refrigerant and
oil. To protect the compressors against
internal corrosion, they are delivered
evacuated of all atmospheric air and
charged with dry Nitrogen (N
2
) to an
overpressure of 0.5 bar [7.3 PSI].
In such cases, a yellow sign is affixed
to a visible spot on the compressor.
The magnetic field on the rotor may
affect pacemakers. The motor rotor
contains a powerful magnetic field.
This field may affect digital devices
such as watches and mobile phones.
Assembly or maintenance of the rotor
must not be carried out by people with
pacemakers or any other implanted
medical electronic device.
The VSD contains capacitors capable
of storing electrical energy, meaning
that there is a risk of electric shock
within 15 minutes after the drive has
been turned off.
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