Lennox 11W00 Piston Assembly 320819-301 while the built-in keypad lockout

while the built-in keypad lockout prevents unauthorized setpoint tampering in high-traffic environments

This 24 volt contactor features standard quick-connect terminals and a universal mounting base

Vibration Dampening: High-strength construction reduces mechanical resonance and operational noise

As an essential ASCO valve part

Lennox 11W00 Piston Assembly 320819-301 while the built-in keypad lockoutThe Lennox 11W00 Piston Assembly is a precision engineered . 067 fixed orifice metering device designed for consistent refrigerant flow control in Lennox and Allied Air residential cooling systems. Engineered for high pressure durability, this HVAC expansion piston ensures optimal evaporator coil performance by maintaining the necessary pressure drop between the liquid line and the coil. Whether you are performing a dry charge unit installation or