Lennox 92L19 – Aire-Flo 20294301 / 36TX11 21172 Pressure Switch – Google SEO Optimized Description

 

The Lennox 92L19 pressure switch (Aire-Flo 20294301 / 36TX11 21172) is a high-quality OEM replacement safety control designed to monitor furnace draft and ensure reliable system performance. Engineered for compatibility with Aire-Flo and select Lennox heating systems, this pressure switch helps maintain proper airflow, protects the furnace from unsafe operating conditions, and supports efficient ignition and combustion cycles.

This factory-specified model provides accurate, dependable performance and is an ideal replacement for aging or failed pressure switches. Built to original equipment standards, it offers long-term durability, stable operation, and seamless installation—helping restore furnace safety and reliability during the heating season.

 

Key Features

 

• Genuine OEM pressure switch for Lennox and Aire-Flo systems
• Ensures proper draft and airflow for safe furnace operation
• Supports ignition sequence and combustion efficiency
• Direct replacement for Aire-Flo 20294301 and 36TX11 21172
• Factory-rated for reliability and long service life
• Simple installation and system compatibility with select Lennox models

Common Applications

• Residential gas furnaces
• Aire-Flo heating units
• Compatible Lennox HVAC systems requiring OEM pressure control

 

Specifications

 

• OEM Part Number: 92L19
• Replacement For: Aire-Flo 20294301 / 36TX11 21172
• Type: Furnace pressure switch
• Application: Draft and airflow safety control
• Compatibility: Select Lennox and Aire-Flo systems