5 to 3-ton units

This is the main combined controller (motherboard)

This 1 1/2" NPT gas valve features a rugged aluminum body and resilient NBR seals

The BASO K16BA-48 Thermocouple is a high-performance standing pilot ignition component designed for professional-grade reliability in gas valve applications

Lennox 14A44 Pressure Switch 326058-757 5 to 3-ton unitsThe Lennox 14A44 Pressure Switch is a critical safety component designed specifically for two stage high efficiency gas furnaces. Operating as a dual stage pressure switch, it is factory calibrated to trip points of 0. 60" WC and 0. 35" WC, ensuring precise monitoring of the combustion air inducer blower. This HVAC draft inducer switch validates correct venting pressure before allowing the ignition sequence to proceed, protecting the system from