In refrigeration and air conditioning systems, it is preferable to limit the minimum evaporation pressure during periods of reduced load. Capacity regulators are a solution to these problems as they allow a portion of the hot discharge gas in the high pressure line to bypass directly to the low pressure line, returning the evaporation temperature/pressure to the desired value.
Accessories for use with the following ASHRAE 34:2019 refrigerants, Class A1:
Maximum allowable pressure PS 28 bar for series 3310 and PS 45 bar for series 3315.
Allowable temperatures TS = -40 / +110 °C