Lennox 14A54 - 104549-12, 2-Stage Pressure Switch, Set Point High 0.75" W.C.; Set Point Low 0.45" W.C.
Lennox 14A54 - 104549-12, 2-Stage Pressure Switch, Set Point High 0.75" W.C.; Set Point Low 0.45" W.C.
Lennox 14A54 (104549-12) is a genuine OEM 2-stage pressure switch designed to monitor and verify proper draft and airflow conditions in compatible Lennox gas furnaces. With two calibrated set points, this switch ensures safe and efficient furnace operation by allowing staged control based on pressure levels during startup and run cycles.
The high-stage set point is calibrated at 0.75 inches W.C., while the low-stage set point is set at 0.45 inches W.C., providing accurate pressure sensing for multi-stage furnace systems. This component plays a critical safety role by preventing ignition or continued operation if proper draft conditions are not met, helping protect the heat exchanger and other critical furnace components.
Manufactured to Lennox OEM specifications, this pressure switch is intended for direct replacement where the original part number 14A54 or 104549-12 is specified. Proper installation and compatibility verification with the furnace model are strongly recommended.
Key features:
- Genuine Lennox OEM 2-stage pressure switch
- High set point: 0.75" W.C.
- Low set point: 0.45" W.C.
- Designed for staged furnace operation
- Ensures safe draft verification and system protection
- Direct replacement for Lennox part numbers 14A54 and 104549-12
Applications:
- Compatible with select Lennox gas furnace models using 2-stage pressure sensing
- Residential and light commercial HVAC systems
| Package Quantity | 1 Item |
|---|---|
| Item Returns | This item can be returned |
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