Sound and vibration management
Mechanical vibrations
Vibration isolation constitutes the primary
method for controlling structural vibration.
H-series 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 H-series
scroll 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 Danfoss Scroll Compressors H-series has
been designed and tested to ensure that gas
pulsation has been optimised for the most
commonly encountered air conditioning
pressure ratio. Manifolded compressors are
equivalents to lagged sources of gas pulsation.
Therefore pulse level can vary during time.
Mitigations methods:
If an unacceptable level is identified, a discharge
muffler with the appropriate resonant volume
and mass can be installed.
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FRCC.PC.012.A7.02
GENER
AL INFORM
ATION
PR
ODUC
T INFORM
ATION
INTEGR
ATION INT
O SY
STEM
ORDERING INFORM
ATION
SY
STEM DESIGN