MARS 43347 Pressure Switch L99H008 maintaining stable amperage draw under

maintaining stable amperage draw under peak load

'Fan' is for the condenser fan motor

Standard Pipe Connections: 3/4-inch male NPT inlet x 1-inch female NPT outlet for straightforward manifold or boiler installation

Always verify the part number against your furnace’s specific parts list or contact technical support for compatibility verification

the 3L09-20 provides the exact fixed temperature settings required to maintain system safety and ASHRAE compliance

MARS 43347 Pressure Switch L99H008 maintaining stable amperage draw underThe MARS 43347 Pressure Switch is a heavy duty, auto reset low pressure control engineered for precise refrigerant monitoring in residential and commercial HVACR systems. This SPST normally open pressure switch is factory set to open at 25 PSI and close at 65 PSI, providing reliable protection against low side pressure drops that can lead to compressor failure. Specifically designed for compatibility with common refrigerants, including R 410A