AGL_HA_ST_Discus_A2L_A1_EN_Rev00 3
2 Product description
2.1 Compressor range
These application guidelines cover Copeland semi-hermetic compressor models 2D*, 3D* and 8D*
with displacement ranging from 16.8 to 181 m
3
/h. The optimized valve plate design of these
compressors provides the highest energy efficiency.
Copeland semi-hermetic compressors are suitable for a wide range of applications in the form of
either single compressors, condensing units or as multi-compressor equipment.
Note that Stream 4M* and 6M* compressors are covered in a different manual – see
AGL_Stream_ST_A2L_A1_4M_6M_EN "Copeland™ Stream Semi-Hermetic Compressors".
NOTE: The compressor is only one component which must be combined with many others to
build a functional and efficient refrigeration system. Therefore, the information in this manual
relates to Copeland semi-hermetic compressors with standard equipment and accessories
only.
2.2
Nomenclature
The model designation contains the following technical information about the standard and Discus
compressors:
Figure 1: Nomenclature
The 2D*, 3D* and 8D* compressors have been modified internally to support operation with A2L
refrigerants. The modified models can be identified by the new design revision number in the
nomenclature – see also Table 1 below. Only the compressors marked with the new design revision
numbers are approved for operation with A2L refrigerants, or alternatively with A1 refrigerants. The
compressor models with the revision numbers of the old design are not qualified for operation with
A2L refrigerants and can only be operated with A1 refrigerants.
"Old" design revision
number (A1 refrigerants)
"New" design revision number
(A2L + A1 refrigerants)
8D*6 8D*
Table 1: Design revision numbers and corresponding refrigerant safety classes
The qualification and suitability for A2L operation and the changeover to updated design
revision numbers in the nomenclature are of application from serial number 23B** (production
date February 2023) onwards.
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