Oil Reservoirs and Combinations (OSA)
Components
General
In the oil reservoir, any refrigerant trapped within the oil is boiled-off and the oil is cooled and kept available. ESK oil reservoirs are normally equipped with two sight glasses, with float ball level indicators, for upper and lower level indication, and with two shut off valves.
Selection
The size of oil reservoir required is determined by the number of compressors connected, compressor oil charge, system refrigeration charge and operating conditions. In the following selection chart, you will find a
guideline based on our experience with parallel systems.
Technical Specification
Pmax: Max. Admissible Operating Pressure [bar] 31 10
tOSA: Admissible Operating Temperature [°C] 100 … –10 –10 … – 40
tOSR: Admissible Operating Temperature [°C] 140 … –10 –10 … – 40
tmax: 90°C (green sight glass float ball)