HVAC: Heating & Air-conditioning: Fixed orifice tube air-conditioning system

Topic	Summary

Fixed orifice	In a fixed orifice system, the orifice tube controls the flow of refrigerant into the evaporator. An accumulator acts as a storage device and also contains filters and dessicants to remove moisture and impurities from the refrigerant.
Control devices	Control devices are fitted into the system to ensure maximum efficiency of operation and to protect components from damage.