The rugged diaphragm and snap-action electrical contacts are built to withstand the high-cycle demands of commercial HVACR applications

making it suitable for heat pump outdoor or indoor coils without the need for additional check valves in some configurations

How do the auxiliary switches function in this model

this model is rated for millivolt applications

Key Benefits for Contractors Plug-and-Play Integration: Includes a dedicated control board wiring harness designed for rapid installation on common residential gas boilers

Lennox 19V97 Reversing Valve 320819-301 The rugged diaphragm and snap-actionThe Lennox 19V97 Reversing Valve is a critical 4 way component engineered for heat pump refrigerant flow control in residential and light commercial HVAC systems. This heavy duty valve features a 1 2 x 7 8 ODF connection size, facilitating a precise fit for standard copper line sets. Operating on a 24V reversing valve solenoid, it provides the low voltage reliability required for seamless switching between heating and cooling cycles. As a genuine OEM