This genuine OEM replacement part is essential for restoring optimal combustion efficiency and maintaining the proper manifold pressure required for stable ignition

The Lennox 12L46 Pressure Switch is a critical safety component designed for precise furnace air pressure monitoring in Lennox heating systems

Common Questions: Can I use this with a 2-stage heat pump

provided the overhead clearance allows for the 52-inch length

For technicians troubleshooting indirect-fired gas heaters or makeup air units

Neptronic TRO5404 Thermostat R-410A This genuine OEM replacement partThe Neptronic TRO5404 Thermostat is a high performance room controller thermostat designed for precision management of commercial HVAC systems, including variable air volume (VAV) clusters and modulating duct heaters. Engineered for 24 VAC low voltage operation, this proportional controller features 2 heat 2 cool analog outputs (0 10VDC) along with a dedicated TPM (Time Proportional Modulation) signal, allowing for granular control over damper