If primary power is present but there is 0V on the secondary side

the RC-4864-HH contains activated charcoal needed to pull resins and acids out of the oil

this model features a 1

0 Cv rating reduces pressure drop across the 1/2" NPT ports

Fast Ignition: Engineered to achieve full glow within a strict 17-second window for reliable sequence of operation

Lennox 11W51 Limit Switch Freon If primary power is presentThe Lennox 11W51 Limit Switch is a critical safety component designed for precise thermal regulation within high efficiency residential heating systems. Operating with a 160 190F temperature range, this auto reset limit switch is normally closed and engineered to open the circuit at 190F to prevent heat exchanger damage and potentially hazardous conditions. Once the plenum temperature cools back to 160F, the 11W51 automatically resets, allowing the