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AGL_Stream_ST_A2L_A1_4M_6M_EN_Rev00
In order to avoid refrigerant leaks or other damage the compressors should not be lifted by the service
valves or other accessories.
3.1.4 Installation location
Ensure the compressors are installed on a solid level base.
For multiple compressor parallel configurations, the compressors must be positioned completely
vertically on a totally horizontal surface or rail.
3.1.5 Mounting parts
To minimize vibration and start/stop impulses, flexible mounting should be used. For this purpose,
one set of spring mounting parts for each of the Stream models is delivered with each 4M* and 6M*
compressor.
Due to differences in weight (cylinder / motor side) different springs have to be used on each side.
Springs have different colours for easier identification: violet on motor side and orange on cylinder
side.
Transport clamps can be used for transportation purposes and must be removed for operation.
Operational position
Transport position
Figure 14: Position of vibration dampers during transport and operation
When Stream compressors are applied in parallel applications, for example in racks, harder rubber
mounting parts are alternatives to the standard spring mounting parts.
A compressor may be rigidly mounted, ie, without springs. In this case more shock and vibration
loading will be transmitted to the frame.
Unevenness in the mounting surface will have to be compensated
by the rack and/or the compressor
bottom plate/feet. Excessive unevenness can result in too high mechanical stress to the system and
could damage the compressor or rack. Therefore, the flatness of the mounting location is essential.
In addition, both vibration/shock and mechanical stress to the compressor can be avoided by using
rubber mounting parts.
If the installation requires a very high level of vibration absorption, additional vibration absorbers
–
available on the market
– can be fitted between the rails and the foundation.
3.2 Pressure safety controls
3.2.1 High-pressure protection
Applicable regulations and standards, eg, EN 378-2 shall be followed to apply appropriate control
and ensure that the pressure never exceeds the maximum limit.
High-pressure protection is required to stop the compressor operating outside the allowable pressure
limits. The high-pressure control must be installed correctly, which means that no service valve is
allowed between the compressor and the pressure protection.
The high-pressure cut-out setting shall be determined according to the applicable standard, the type
of system, the refrigerant and the maximum allowable pressure PS.
The high-pressure cut-out should have a manual reset feature for the highest level of system
protection.
Transport clamp
