Description
The Lennox 26W85 is a genuine OEM 2 Stage Pressure Switch engineered for use in compatible Lennox heating systems. Pressure switches are a critical safety and operational component in gas furnaces, verifying that the inducer motor has established proper draft before allowing ignition to proceed — protecting the system and occupants from unsafe combustion conditions.
Designed specifically for two-stage furnace applications, this switch monitors pressure at two distinct set points corresponding to the low-fire and high-fire stages of operation. This dual-stage sensing capability ensures that each firing stage is only initiated when the correct negative pressure is confirmed, maintaining safe and efficient furnace performance across both heating stages.
Key Features
- Genuine Lennox OEM replacement part — SKU 26W85
- 2 stage pressure sensing for low-fire and high-fire furnace operation
- Monitors inducer draft to prevent unsafe ignition conditions
- Direct drop-in replacement for compatible Lennox furnace models
- Engineered for reliable, long-term performance in residential and light commercial applications
Application
This pressure switch is designed for use in Lennox two-stage gas furnaces. Always verify compatibility with your specific furnace model number before installation. Refer to the Lennox parts documentation or contact your distributor for model cross-reference information.
Installation Notes
- Replacement should be performed by a qualified HVAC technician
- Verify hose connections and port integrity during installation
- Inspect inducer motor and venting system if pressure switch failure is suspected
Reviews
There are no reviews yet.