With a two-wire installation and self-adjusting circuitry

the switch restores system continuity once the equipment cools back to the 95°F set point

When you're running 1-5/8" line sets or heavy-duty potable water mains

A single flash typically indicates the pressure switch is failing to close

Reliable Performance: Engineered for consistent operation in demanding HVAC hydronic systems

Emerson Alco 053317 Expansion Valve Els PW 17895 With a two-wire installation andThe Emerson Alco 053317 (Model HFE 3 HC) is a high performance externally equalized thermal expansion valve designed for precise refrigerant flow control in 3 ton R22 and R407C systems. Featuring an angle body configuration with 3 8" x 1 2" SAE flare connections, this TXV is engineered for durability in medium temperature applications. The 5 foot capillary tube provides flexibility for various evaporator coil placements, while the HC charge ensures