Trane CNT4991 Pressure Switch
The Trane CNT4991 is a 10-inch SPST pressure switch engineered for precise atmospheric monitoring in high-efficiency Trane and American Standard HVAC systems. This OEM air pressure switch features a single-pole single-throw (SPST) contact configuration, rated at 0.1" WC (water column) for low-pressure detection. It is designed to interrupt or complete the 24V control circuit (rated at 28 VA) when specific airflow or flue gas pressure thresholds are reached, ensuring safe furnace operation and preventing combustion issues. The unit includes an integrated mounting bracket for a secure, vibration-resistant installation within the air handler or burner compartment. Professionals rely on this genuine Trane replacement part for its exact calibration and positive connector design, which maintains electrical integrity under heavy cycling. Using this HVAC pressure switch ensures full compatibility with factory specifications, preventing the common nuisance tripping associated with aftermarket sensors.
Key Benefits- OEM Precision: Calibrated to a strict 0.1" WC trip point for accurate draft and airflow monitoring.
- Enhanced Durability: Rugged 10-inch housing with a positive connector to resist terminal corrosion and ensure signal stability.
- Simplified Mounting: Features a pre-installed steel mounting bracket for faster field installation and proper alignment in the cabinet.
- Safety Compliance: Designed specifically for Trane equipment to manage 28 VA at 24V, protecting the control board from electrical overloads.
What does a 0.1" WC rating mean for the Trane CNT4991?
This rating specifies the pressure differential required to actuate the switch. It is a highly sensitive low-pressure setting typical for draft inducer monitoring or secondary limit protection.
Is the CNT4991 compatible with all Trane furnaces?
While the Trane CNT4991 fits many residential and light commercial models, it is essential to verify your specific model number against the manufacturer’s parts list, as pressure settings are critical for safe combustion.
Can this switch be used in place of an adjustable pressure switch?
For Trane OEM compatibility, it is recommended to use this factory-set SPST pressure switch rather than an adjustable alternative to ensure the safety parameters of the original equipment are maintained.
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: $117.96
-65%$117.96
$41.29Trane CNT4991 Pressure Switch
The Trane CNT4991 is a 10-inch SPST pressure switch engineered for precise atmospheric monitoring in high-efficiency Trane and American Standard HVAC systems. This OEM air pressure switch features a single-pole single-throw (SPST) contact configuration, rated at 0.1" WC (water column) for low-pressure detection. It is designed to interrupt or complete the 24V control circuit (rated at 28 VA) when specific airflow or flue gas pressure thresholds are reached, ensuring safe furnace operation and preventing combustion issues. The unit includes an integrated mounting bracket for a secure, vibration-resistant installation within the air handler or burner compartment. Professionals rely on this genuine Trane replacement part for its exact calibration and positive connector design, which maintains electrical integrity under heavy cycling. Using this HVAC pressure switch ensures full compatibility with factory specifications, preventing the common nuisance tripping associated with aftermarket sensors.
Key Benefits- OEM Precision: Calibrated to a strict 0.1" WC trip point for accurate draft and airflow monitoring.
- Enhanced Durability: Rugged 10-inch housing with a positive connector to resist terminal corrosion and ensure signal stability.
- Simplified Mounting: Features a pre-installed steel mounting bracket for faster field installation and proper alignment in the cabinet.
- Safety Compliance: Designed specifically for Trane equipment to manage 28 VA at 24V, protecting the control board from electrical overloads.
What does a 0.1" WC rating mean for the Trane CNT4991?
This rating specifies the pressure differential required to actuate the switch. It is a highly sensitive low-pressure setting typical for draft inducer monitoring or secondary limit protection.
Is the CNT4991 compatible with all Trane furnaces?
While the Trane CNT4991 fits many residential and light commercial models, it is essential to verify your specific model number against the manufacturer’s parts list, as pressure settings are critical for safe combustion.
Can this switch be used in place of an adjustable pressure switch?
For Trane OEM compatibility, it is recommended to use this factory-set SPST pressure switch rather than an adjustable alternative to ensure the safety parameters of the original equipment are maintained.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Trane CNT4991 is a 10-inch SPST pressure switch engineered for precise atmospheric monitoring in high-efficiency Trane and American Standard HVAC systems. This OEM air pressure switch features a single-pole single-throw (SPST) contact configuration, rated at 0.1" WC (water column) for low-pressure detection. It is designed to interrupt or complete the 24V control circuit (rated at 28 VA) when specific airflow or flue gas pressure thresholds are reached, ensuring safe furnace operation and preventing combustion issues. The unit includes an integrated mounting bracket for a secure, vibration-resistant installation within the air handler or burner compartment. Professionals rely on this genuine Trane replacement part for its exact calibration and positive connector design, which maintains electrical integrity under heavy cycling. Using this HVAC pressure switch ensures full compatibility with factory specifications, preventing the common nuisance tripping associated with aftermarket sensors.
Key Benefits- OEM Precision: Calibrated to a strict 0.1" WC trip point for accurate draft and airflow monitoring.
- Enhanced Durability: Rugged 10-inch housing with a positive connector to resist terminal corrosion and ensure signal stability.
- Simplified Mounting: Features a pre-installed steel mounting bracket for faster field installation and proper alignment in the cabinet.
- Safety Compliance: Designed specifically for Trane equipment to manage 28 VA at 24V, protecting the control board from electrical overloads.
What does a 0.1" WC rating mean for the Trane CNT4991?
This rating specifies the pressure differential required to actuate the switch. It is a highly sensitive low-pressure setting typical for draft inducer monitoring or secondary limit protection.
Is the CNT4991 compatible with all Trane furnaces?
While the Trane CNT4991 fits many residential and light commercial models, it is essential to verify your specific model number against the manufacturer’s parts list, as pressure settings are critical for safe combustion.
Can this switch be used in place of an adjustable pressure switch?
For Trane OEM compatibility, it is recommended to use this factory-set SPST pressure switch rather than an adjustable alternative to ensure the safety parameters of the original equipment are maintained.
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.
