Because of the unique Danfoss design of a full-suction gas-cooled motor, compressor body insulation across its
entire operating range is possible. Acoustic hoods are available from Danfoss as accessories. They have been
developed to meet specific extra low noise requirements. They incorporate sound proofing materials and offer
excellent high and low frequency alternative.
These hoods are quick and easy to install and do not increase the overall size of the compressors to a great extend.
Refer to section Running sound level for sound attenuation and code numbers.
Mechanical vibrations
Vibration isolation constitutes the primary method for controlling structural vibration. Danfoss CH scroll
compressors are designed to produce minimal vibration during operations. Once the supplied rubber grommets
have been properly mounted, vibrations 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. For further information on
mounting requirements, please refer to the section on mounting assembly.
NOTE:
For parallel assemblies see specific recommendations in Danfoss parallel application guidelines (Rigid mounting).
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”.
© Danfoss | Climate Solutions | 2022.09
AB236986442743en-000501 | 13
Scroll compressors, CH290 and CH485 | Sound and vibration data