Description
The Trane SEN0999 is an OEM mixed air temperature sensor designed for use in air handling units (AHUs) and commercial HVAC systems where accurate mixed air temperature measurement is essential for proper economizer and zone control operation.
Product Overview
This sensor features a 15-foot capillary element that spans the full cross-section of an air handler’s mixed air plenum, providing an averaged temperature reading rather than a single-point measurement. This averaging approach ensures more representative and reliable data for the building automation or HVAC control system, helping to optimize energy efficiency and maintain occupant comfort.
Key Features
- 15-foot capillary averaging element for accurate mixed air temperature sensing
- Designed as a direct OEM replacement for Trane air handling units
- Averaging capillary design compensates for temperature stratification in the airstream
- Compatible with Trane building automation and HVAC control systems
- Supports economizer control, mixed air damper sequencing, and energy management strategies
- Durable construction built to Trane OEM specifications for long service life
Application
The SEN0999 is ideal for commercial and light industrial air handling applications where mixed air temperature monitoring is required. It is commonly used in conjunction with economizers, outside air dampers, and return air dampers to ensure optimal air mixing and energy-efficient operation. Proper mixed air sensing helps prevent coil freezing, maintains indoor air quality, and supports demand-controlled ventilation strategies.
Why Choose the Trane SEN0999
Using a genuine Trane OEM sensor ensures compatibility with your existing controls infrastructure and maintains system warranty integrity. The long capillary length provides superior temperature averaging across large duct cross-sections, reducing the risk of control errors caused by temperature stratification — a common challenge in mixed air plenums.
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