and UDZ-400 series gas-fired heaters

Developed for precision airflow management

This Polar White ADB requires a Dometic wall-mounted thermostat

This double pole double throw relay features a 24-volt AC coil and is rated for up to 20 amps

Reliable Coil Insulation: Class F coil construction allows for higher ambient temperature operation without risking electrical insulation breakdown

Trane SEN0999 Temp Sensor 323080-701 and UDZ-400 series gas-fired heatersThe Trane SEN0999 is a high precision mixed air temperature sensor engineered for commercial and industrial air handling units. Featuring a 15 foot capillary tube, this sensor is designed to provide comprehensive average temperature readings across the duct cross section, preventing localized stratification from causing inaccurate system cycling. This OEM Trane replacement is critical for economizer control and maintaining discharge air setpoints