Technicians should use their own calibrated manometer to verify that the outbound manifold pressure meets the specifications listed in the installation manual

If the switch remains open (no continuity) even after the furnace has completely cooled down

ensuring precise alignment and stability in high-static pressure applications

This OEM Lennox part is a manual reset

or wavering pilot flame

Rheem-Ruud 60-18556-86 Pilot Valve Refrigerant Technicians should use their ownAs a seasoned tech, you know that finding an exact OEM replacement is non negotiable for safety and system calibration. The Rheem Ruud 60 18556 86 Pilot Valve is a single stage gas valve engineered for HSI DSI ignition systems and high demand applications. With a massive 240,000 BTU HR capacity, this natural gas valve features a 1 2 inch NPT input and a 3 4 inch NPT output, ensuring it meets the flow requirements of both large residential and