Lennox 18J74 - (18J7401) Pressure Switch
Ensure reliable and accurate airflow monitoring with the Lennox 18J74 (18J7401) Pressure Switch. This OEM replacement component is engineered to provide dependable pressure sensing in residential and light commercial HVAC systems, helping protect against improper system operation and ensuring safe furnace performance.
Designed to monitor the differential pressure within your furnace's inducer assembly, this pressure switch helps confirm that airflow is within proper operating thresholds before allowing ignition. If unsafe conditions are detected, the switch prevents burner operation to safeguard the system and occupants.
Key Features:
- Catalog Number: 18J74Model/Part Number: 18J7401Minimum Order Quantity: 0.0Base Unit of Measure: Unit(S)Type: Pressure SwitchGross Weight: 0.2 LBType: Pressure Switch
- OEM Lennox Replacement Part – Built to meet original equipment specifications for a perfect fit and consistent performance.
- Durable Construction – Engineered to withstand the heat and pressure fluctuations of furnace operation.
- Precise Operation – Accurately detects air pressure conditions to assist in safe furnace startup and shutoff procedures.
- Pre-calibrated for Specific Applications – No field adjustments needed, ensuring plug-and-play compatibility with select Lennox systems.
- Helps Maintain Safety Standards – Automatically shuts down ignition sequence if inadequate airflow or pressure is detected.
Application:
Commonly used in Lennox gas furnaces and HVAC systems requiring this specific pressure rating and configuration. Always verify compatibility using your system’s model number or consult the manufacturer’s documentation.
Ensure your Lennox system runs safely and efficiently with the trusted performance of the 18J74 pressure switch — available now at Beenimax.