Emerson Climate Technologies’ Copeland^® brand semi-hermetic compressors range from 2–50 HP for industrial process and refrigeration applications. Copeland semi-hermetic compressors include the L series, S series and 6T two-stage series which are widely used in supermarkets, cold rooms and equipment manufacturing areas. 

L series
As an early Copeland product, L series semi-hermetic reciprocating compressors with nominal horsepower of between 2–5 HP is a workhorse in highly demanding application conditions.

S series
The S series ranges from a nominal horsepower of 5 –50 HP and comes with 2, 3, 4 and 6 cylinders. They are respectively identified as 2S, 3S, 4S and 6S series respectively. The S series compressors cover all applications for high, medium and low temperature with R-22, R-404A and R-407C refrigerants. The compressors are designed with high-pressure internal oil pump for optimal lubrication and integrated oil pressure protection to detect loss of oil.  The S series is ideal to operate with variable speed drives and in single compressor and multiple compressor rack configurations.

6T, two stage series
These are two-stage compressors ranging from 15 –30 HP with R-22 and R-404A refrigerants and come with an option of intercooler designed for  ultra low evaporating conditions of up to
-60°C.