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Fig. 4 - Unit Levelling
For installation on the ground, a strong concrete base, at least 250 mm thickness and wider than the unit must be provided.
This base must be able to support the weight of the unit.
The unit must be installed above antivibrating mounts (AVM), rubber or spring types. The unit frame must be perfectly
levelled above the AVM.
Installation such as in the figure above must always be avoided. In case the AV
M’s are not adjustable the flatness of the
unit frame must be guaranteed by using metal plate spacers.
Before unit commissioning, the flatness must be verified by using a laser levelling device or other similar devices. The
flatness shall not be over 5 mm for units within 7 m length and 10 mm for units over 7 m.
If the unit is installed in places that are easily accessible to people and animals, it is advisable to install protection grids for
the condenser and compressor sections.