Lennox 26W86 Pressure Switch
The Lennox 26W86 is a mission-critical 2-stage high altitude pressure switch engineered for precision in demanding environments. Designed as a direct Lennox 101021-10 OEM replacement, this dual-stage component is calibrated for systems operating above 4,500 feet where air density impacts combustion. It features dual set points of 0.90" WC for low-stage and 1.20" WC for high-stage operation, ensuring the inducer motor maintains proper static pressure before allowing ignition. As a veteran-preferred furnace pressure switch, it is compatible with high-efficiency Lennox G61MPV and SLP series units. This robust HVAC draft inducer switch helps prevent nuisance trips and protects the heat exchanger from unsafe airflow conditions. For contractors servicing multi-stage HVAC logic, utilizing a genuine Lennox HVAC part like the 26W86 ensures the factory-specified two-stage pressure sensitivity is maintained for optimal burner performance and long-term system reliability in low-oxygen environments.
Key Benefits for Technicians:- High-Altitude Calibration: Pre-set at 0.9" and 1.2" WC to solve ignition issues in residential and light industrial high-elevation installations.
- Dual-Stage Integration: Specifically designed to manage two-stage furnace sequences, providing separate verification for low and high fire cycles.
- Broad Compatibility: Replaces Lennox 101021-10 and is compatible with Allied, Armstrong, and Ducane equipment.
- Safety Compliance: UL and CSA listed to meet strict HVAC electrical and airflow safety standards.
When should the Lennox 26W86 be used instead of a standard switch?
This part is specifically intended for high-altitude conversions or repairs where the atmospheric pressure requires a 0.9/1.2" WC sensitivity to properly engage the gas valve.
What are the symptoms of a failing 26W86 pressure switch?
Common signs include code 2 or 3 flashes on the control board, indicating the inducer is running but the 2-stage pressure switch failed to close, or the furnace oscillates between stages incorrectly.
Is this switch compatible with single-stage furnaces?
No, the Lennox 26W86 is a dual-stage component. Using it on a single-stage unit will cause control board errors and improper sequence of operation.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $55.01
-65%$55.01
$19.25Lennox 26W86 Pressure Switch
The Lennox 26W86 is a mission-critical 2-stage high altitude pressure switch engineered for precision in demanding environments. Designed as a direct Lennox 101021-10 OEM replacement, this dual-stage component is calibrated for systems operating above 4,500 feet where air density impacts combustion. It features dual set points of 0.90" WC for low-stage and 1.20" WC for high-stage operation, ensuring the inducer motor maintains proper static pressure before allowing ignition. As a veteran-preferred furnace pressure switch, it is compatible with high-efficiency Lennox G61MPV and SLP series units. This robust HVAC draft inducer switch helps prevent nuisance trips and protects the heat exchanger from unsafe airflow conditions. For contractors servicing multi-stage HVAC logic, utilizing a genuine Lennox HVAC part like the 26W86 ensures the factory-specified two-stage pressure sensitivity is maintained for optimal burner performance and long-term system reliability in low-oxygen environments.
Key Benefits for Technicians:- High-Altitude Calibration: Pre-set at 0.9" and 1.2" WC to solve ignition issues in residential and light industrial high-elevation installations.
- Dual-Stage Integration: Specifically designed to manage two-stage furnace sequences, providing separate verification for low and high fire cycles.
- Broad Compatibility: Replaces Lennox 101021-10 and is compatible with Allied, Armstrong, and Ducane equipment.
- Safety Compliance: UL and CSA listed to meet strict HVAC electrical and airflow safety standards.
When should the Lennox 26W86 be used instead of a standard switch?
This part is specifically intended for high-altitude conversions or repairs where the atmospheric pressure requires a 0.9/1.2" WC sensitivity to properly engage the gas valve.
What are the symptoms of a failing 26W86 pressure switch?
Common signs include code 2 or 3 flashes on the control board, indicating the inducer is running but the 2-stage pressure switch failed to close, or the furnace oscillates between stages incorrectly.
Is this switch compatible with single-stage furnaces?
No, the Lennox 26W86 is a dual-stage component. Using it on a single-stage unit will cause control board errors and improper sequence of operation.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Lennox 26W86 is a mission-critical 2-stage high altitude pressure switch engineered for precision in demanding environments. Designed as a direct Lennox 101021-10 OEM replacement, this dual-stage component is calibrated for systems operating above 4,500 feet where air density impacts combustion. It features dual set points of 0.90" WC for low-stage and 1.20" WC for high-stage operation, ensuring the inducer motor maintains proper static pressure before allowing ignition. As a veteran-preferred furnace pressure switch, it is compatible with high-efficiency Lennox G61MPV and SLP series units. This robust HVAC draft inducer switch helps prevent nuisance trips and protects the heat exchanger from unsafe airflow conditions. For contractors servicing multi-stage HVAC logic, utilizing a genuine Lennox HVAC part like the 26W86 ensures the factory-specified two-stage pressure sensitivity is maintained for optimal burner performance and long-term system reliability in low-oxygen environments.
Key Benefits for Technicians:- High-Altitude Calibration: Pre-set at 0.9" and 1.2" WC to solve ignition issues in residential and light industrial high-elevation installations.
- Dual-Stage Integration: Specifically designed to manage two-stage furnace sequences, providing separate verification for low and high fire cycles.
- Broad Compatibility: Replaces Lennox 101021-10 and is compatible with Allied, Armstrong, and Ducane equipment.
- Safety Compliance: UL and CSA listed to meet strict HVAC electrical and airflow safety standards.
When should the Lennox 26W86 be used instead of a standard switch?
This part is specifically intended for high-altitude conversions or repairs where the atmospheric pressure requires a 0.9/1.2" WC sensitivity to properly engage the gas valve.
What are the symptoms of a failing 26W86 pressure switch?
Common signs include code 2 or 3 flashes on the control board, indicating the inducer is running but the 2-stage pressure switch failed to close, or the furnace oscillates between stages incorrectly.
Is this switch compatible with single-stage furnaces?
No, the Lennox 26W86 is a dual-stage component. Using it on a single-stage unit will cause control board errors and improper sequence of operation.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
