Lennox 11U65 Pressure Switch
The Lennox 11U65 Pressure Switch is a critical safety component engineered for precision monitoring of combustion air in high-efficiency furnace systems. This OEM Lennox replacement part, also identified by manufacturer number 104371-02, is a high-sensitivity 60" wc pressure switch designed to actuate at exactly 0.60 inches water column. Operating as a normally open SPST switch (Single Pole Single Throw), it ensures that the inducer motor is creating the required vacuum for safe venting before allowing the ignition sequence to proceed.
Built for durability in demanding HVAC environments, the 11U65 features a 5 Amp resistive contact rating at 24 VAC, facilitating reliable electrical switching for the control board interface. Its compact housing allow for direct fitment in space-constrained cabinets, while the clearly marked terminals simplify field wiring for technicians. By maintaining tight tolerances and robust vacuum sensing, this switch prevents dangerous exhaust gas recirculation and optimizes furnace performance. This is the direct furnace draft inducer switch replacement for numerous Lennox G61 and related gas furnace series.
Key Benefits- OEM Reliability: Genuine Lennox replacement ensures exact calibration to factory specifications for safety circuit integrity.
- Precise Actuation: Calibrated to 0.60" W.C. to provide accurate draft sensing and prevent nuisance trips or unsafe operation.
- System Compatibility: Designed for seamless integration with 24V control circuits using standard SPST-N.O. configuration.
- Durable Construction: Engineered to withstand high-cycle operation and the thermal fluctuations of furnace vestibules.
- How do I verify if the 11U65 is the correct switch for my unit? Check the label on your existing part for part number 104371-02 or the 0.60" WC set point; this switch is specific to high-static Lennox inducer applications.
- Can I use a universal pressure switch as a substitute? Using an OEM 11U65 is critical because furnace safety circuits are calibrated to specific water column ratings; substitutions may lead to safety failures or intermittent ignition.
- What are the signs of a failing pressure switch? Common indicators include the inducer motor running without ignition, "pressure switch stuck open" error codes on the LED, or physical cracks in the diaphragm housing.
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.
Lennox 11U65 Pressure Switch
The Lennox 11U65 Pressure Switch is a critical safety component engineered for precision monitoring of combustion air in high-efficiency furnace systems. This OEM Lennox replacement part, also identified by manufacturer number 104371-02, is a high-sensitivity 60" wc pressure switch designed to actuate at exactly 0.60 inches water column. Operating as a normally open SPST switch (Single Pole Single Throw), it ensures that the inducer motor is creating the required vacuum for safe venting before allowing the ignition sequence to proceed.
Built for durability in demanding HVAC environments, the 11U65 features a 5 Amp resistive contact rating at 24 VAC, facilitating reliable electrical switching for the control board interface. Its compact housing allow for direct fitment in space-constrained cabinets, while the clearly marked terminals simplify field wiring for technicians. By maintaining tight tolerances and robust vacuum sensing, this switch prevents dangerous exhaust gas recirculation and optimizes furnace performance. This is the direct furnace draft inducer switch replacement for numerous Lennox G61 and related gas furnace series.
Key Benefits- OEM Reliability: Genuine Lennox replacement ensures exact calibration to factory specifications for safety circuit integrity.
- Precise Actuation: Calibrated to 0.60" W.C. to provide accurate draft sensing and prevent nuisance trips or unsafe operation.
- System Compatibility: Designed for seamless integration with 24V control circuits using standard SPST-N.O. configuration.
- Durable Construction: Engineered to withstand high-cycle operation and the thermal fluctuations of furnace vestibules.
- How do I verify if the 11U65 is the correct switch for my unit? Check the label on your existing part for part number 104371-02 or the 0.60" WC set point; this switch is specific to high-static Lennox inducer applications.
- Can I use a universal pressure switch as a substitute? Using an OEM 11U65 is critical because furnace safety circuits are calibrated to specific water column ratings; substitutions may lead to safety failures or intermittent ignition.
- What are the signs of a failing pressure switch? Common indicators include the inducer motor running without ignition, "pressure switch stuck open" error codes on the LED, or physical cracks in the diaphragm housing.
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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Product Information
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Description
The Lennox 11U65 Pressure Switch is a critical safety component engineered for precision monitoring of combustion air in high-efficiency furnace systems. This OEM Lennox replacement part, also identified by manufacturer number 104371-02, is a high-sensitivity 60" wc pressure switch designed to actuate at exactly 0.60 inches water column. Operating as a normally open SPST switch (Single Pole Single Throw), it ensures that the inducer motor is creating the required vacuum for safe venting before allowing the ignition sequence to proceed.
Built for durability in demanding HVAC environments, the 11U65 features a 5 Amp resistive contact rating at 24 VAC, facilitating reliable electrical switching for the control board interface. Its compact housing allow for direct fitment in space-constrained cabinets, while the clearly marked terminals simplify field wiring for technicians. By maintaining tight tolerances and robust vacuum sensing, this switch prevents dangerous exhaust gas recirculation and optimizes furnace performance. This is the direct furnace draft inducer switch replacement for numerous Lennox G61 and related gas furnace series.
Key Benefits- OEM Reliability: Genuine Lennox replacement ensures exact calibration to factory specifications for safety circuit integrity.
- Precise Actuation: Calibrated to 0.60" W.C. to provide accurate draft sensing and prevent nuisance trips or unsafe operation.
- System Compatibility: Designed for seamless integration with 24V control circuits using standard SPST-N.O. configuration.
- Durable Construction: Engineered to withstand high-cycle operation and the thermal fluctuations of furnace vestibules.
- How do I verify if the 11U65 is the correct switch for my unit? Check the label on your existing part for part number 104371-02 or the 0.60" WC set point; this switch is specific to high-static Lennox inducer applications.
- Can I use a universal pressure switch as a substitute? Using an OEM 11U65 is critical because furnace safety circuits are calibrated to specific water column ratings; substitutions may lead to safety failures or intermittent ignition.
- What are the signs of a failing pressure switch? Common indicators include the inducer motor running without ignition, "pressure switch stuck open" error codes on the LED, or physical cracks in the diaphragm housing.
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.
