Sound and vibration management
Mechanical vibrations
Vibration isolation constitutes the primary
method for controlling structural vibration.
MLZ scroll compressors are designed to produce
minimal vibration during operations. The use of
rubber isolators on the compressor base plate
or on the frame of a manifolded unit is very
effective in reducing vibration being transmitted
from the compressor(s) to the unit. Rubber
grommets are supplied with all MLZ compressors.
Once the supplied rubber grommets have
been properly mounted, vibration transmitted
from the compressor base plate to the unit
are held to a strict minimum. In addition, it is
extremely important that the frame supporting
the mounted compressor be of sufficient mass
and stiffness to help dampen any residual
vibration potentially transmitted to the frame.
The tubing should be designed so as to both
reduce the transmission of vibrations to other
structures and withstand vibration without
incurring any damage. Tubing should also be
designed for three-dimensional flexibility. For
more information on piping design, please see
the section entitled "Essential piping design
considerations".
Gas pulsation
The MLZ scroll compressors have been designed
and tested to ensure that gas pulsation has
been minimized for the most commonly
encountered refrigeration pressure ratio. On
installations where the pressure ratio lies beyond
the typical range, testing should be conducted
under all expected conditions and operating
configurations to ensure that minimum gas
pulsation is present. If an unacceptable level
is identified, a discharge muffler with the
appropriate resonant volume and mass should
be installed. This information can be obtained
from the component manufacturer.
AB243286444663en-001003
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Application Guidelines
Summary of Contents for MLZ Evolution A
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