Description
The Copeland Comfort Control (Alco) 1840079 N/C Manual Stem Valve Less Coil 5/8″ Sweat is a normally closed refrigerant control valve that flows in heating and air conditioning circuits using a manual stem-operated mechanism. It operates by mechanically opening or closing the internal passage to control fluid movement without relying on an energized coil, providing direct and stable flow control when required. In HVAC systems it is used in refrigeration lines, condenser circuits, and control piping to manage refrigerant flow and system isolation. It connects through sweat joints and supports dependable control, reduced leakage risk, and stable system operation under varying load conditions.
