Trane SEN1789 Smoke Sensor
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Trane SEN1789 Smoke Sensor

Trane SEN1789 Smoke Sensor

The Trane SEN1789 Photoelectric Smoke Sensor is a critical safety component designed for precise duct smoke detection within commercial and residential HVAC systems. As an OEM replacement for models like the SEN01789 and SL-2000-P-3WTRA, this unit utilizes advanced photoelectric sensing technology to identify smoldering fires by monitoring light scattering patterns within the air handler. This high-sensitivity approach ensures reliable HVAC system shutdown before smoke can circulate through the building, meeting strict life-safety requirements. Designed for a wide range of air velocities (500 to 4000 FPM), this Trane duct smoke detector integrates seamlessly with Trane ReliaTel and Symbio control boards via a standard 3-pin wiring harness. Its rugged construction supports an operating temperature range of 32°F to 140°F, making it suitable for demanding rooftop unit (RTU) applications. Field technicians can verify performance using a standard magnet test or aerosol smoke, ensuring the HVAC safety sensor is fully operational for property protection and building code compliance.

Key Benefits
  • OEM Compatibility: Exact replacement for Trane SEN01789 and SL-2000 series sensors, ensuring plug-and-play integration with factory harnesses.
  • Photoelectric Accuracy: Superior detection of large-particle smoke typical of smoldering fires compared to ionization sensors.
  • Universal Voltage Support: Engineered to work across varying control voltages found in Trane packaged units and split systems.
  • Rapid Response: Triggers a high-limit unit shutdown and requires a manual reset to prevent smoke recirculation.
  • Standardized Testing: Features diagnostic LEDs and supports magnet-based sensitivity checks for efficient routine maintenance.
Common Questions

Is the SEN1789 interchangeable with the SEN01789?
Yes, the Trane SEN1789 is the current replacement part number for the SEN01789. It maintains the same 3-pin connection and mounting footprint for duct-mounted applications.

How do I test this sensor during a maintenance call?
You can perform a functional test by placing a test magnet on the designated "Magnet Test" area on the housing or by using approved aerosol smoke through the test port. The unit should trigger an alarm and shut down the blower motor.

Does this sensor require a manual reset?
Yes, once the sensor is tripped, it provides a high-limit shutdown of the HVAC equipment and typically requires a manual reset at the unit or the remote test station to resume normal operation.

This item is not eligible for free shipping.

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.

$92.15

Original: $263.28

-65%
Trane SEN1789 Smoke Sensor

$263.28

$92.15

Trane SEN1789 Smoke Sensor

The Trane SEN1789 Photoelectric Smoke Sensor is a critical safety component designed for precise duct smoke detection within commercial and residential HVAC systems. As an OEM replacement for models like the SEN01789 and SL-2000-P-3WTRA, this unit utilizes advanced photoelectric sensing technology to identify smoldering fires by monitoring light scattering patterns within the air handler. This high-sensitivity approach ensures reliable HVAC system shutdown before smoke can circulate through the building, meeting strict life-safety requirements. Designed for a wide range of air velocities (500 to 4000 FPM), this Trane duct smoke detector integrates seamlessly with Trane ReliaTel and Symbio control boards via a standard 3-pin wiring harness. Its rugged construction supports an operating temperature range of 32°F to 140°F, making it suitable for demanding rooftop unit (RTU) applications. Field technicians can verify performance using a standard magnet test or aerosol smoke, ensuring the HVAC safety sensor is fully operational for property protection and building code compliance.

Key Benefits
  • OEM Compatibility: Exact replacement for Trane SEN01789 and SL-2000 series sensors, ensuring plug-and-play integration with factory harnesses.
  • Photoelectric Accuracy: Superior detection of large-particle smoke typical of smoldering fires compared to ionization sensors.
  • Universal Voltage Support: Engineered to work across varying control voltages found in Trane packaged units and split systems.
  • Rapid Response: Triggers a high-limit unit shutdown and requires a manual reset to prevent smoke recirculation.
  • Standardized Testing: Features diagnostic LEDs and supports magnet-based sensitivity checks for efficient routine maintenance.
Common Questions

Is the SEN1789 interchangeable with the SEN01789?
Yes, the Trane SEN1789 is the current replacement part number for the SEN01789. It maintains the same 3-pin connection and mounting footprint for duct-mounted applications.

How do I test this sensor during a maintenance call?
You can perform a functional test by placing a test magnet on the designated "Magnet Test" area on the housing or by using approved aerosol smoke through the test port. The unit should trigger an alarm and shut down the blower motor.

Does this sensor require a manual reset?
Yes, once the sensor is tripped, it provides a high-limit shutdown of the HVAC equipment and typically requires a manual reset at the unit or the remote test station to resume normal operation.

This item is not eligible for free shipping.

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

Shipping & Returns

Description

The Trane SEN1789 Photoelectric Smoke Sensor is a critical safety component designed for precise duct smoke detection within commercial and residential HVAC systems. As an OEM replacement for models like the SEN01789 and SL-2000-P-3WTRA, this unit utilizes advanced photoelectric sensing technology to identify smoldering fires by monitoring light scattering patterns within the air handler. This high-sensitivity approach ensures reliable HVAC system shutdown before smoke can circulate through the building, meeting strict life-safety requirements. Designed for a wide range of air velocities (500 to 4000 FPM), this Trane duct smoke detector integrates seamlessly with Trane ReliaTel and Symbio control boards via a standard 3-pin wiring harness. Its rugged construction supports an operating temperature range of 32°F to 140°F, making it suitable for demanding rooftop unit (RTU) applications. Field technicians can verify performance using a standard magnet test or aerosol smoke, ensuring the HVAC safety sensor is fully operational for property protection and building code compliance.

Key Benefits
  • OEM Compatibility: Exact replacement for Trane SEN01789 and SL-2000 series sensors, ensuring plug-and-play integration with factory harnesses.
  • Photoelectric Accuracy: Superior detection of large-particle smoke typical of smoldering fires compared to ionization sensors.
  • Universal Voltage Support: Engineered to work across varying control voltages found in Trane packaged units and split systems.
  • Rapid Response: Triggers a high-limit unit shutdown and requires a manual reset to prevent smoke recirculation.
  • Standardized Testing: Features diagnostic LEDs and supports magnet-based sensitivity checks for efficient routine maintenance.
Common Questions

Is the SEN1789 interchangeable with the SEN01789?
Yes, the Trane SEN1789 is the current replacement part number for the SEN01789. It maintains the same 3-pin connection and mounting footprint for duct-mounted applications.

How do I test this sensor during a maintenance call?
You can perform a functional test by placing a test magnet on the designated "Magnet Test" area on the housing or by using approved aerosol smoke through the test port. The unit should trigger an alarm and shut down the blower motor.

Does this sensor require a manual reset?
Yes, once the sensor is tripped, it provides a high-limit shutdown of the HVAC equipment and typically requires a manual reset at the unit or the remote test station to resume normal operation.

This item is not eligible for free shipping.

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.