Trane SEN1789 Smoke Sensor L99H008 This hermetic scroll compressor utilizes

This hermetic scroll compressor utilizes polyol ester oil (POE)

this externally equalized TXV facilitates accurate superheat control and improved seasonal efficiency across light commercial rooftop units and chillers

Direct OEM Fit: Guaranteed physical and electrical compatibility with Heil Quaker ICP equipment

indicating the SPDT contacts have switched state

You must use a Lennox-specific conversion kit if your application requires propane

Trane SEN1789 Smoke Sensor L99H008 This hermetic scroll compressor utilizesThe 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