When servicing worn contactors

Supports shared plenum applications

the ST-10 sampling tube must be positioned with the inlet holes facing directly into the airflow

control boards

It serves as the direct Nordyne 667277R replacement

Honeywell TR50-5D Sensor 340155-7024 When servicing worn contactorsThe Honeywell TR50 5D is a high performance IAQ sensor engineered for precise monitoring in demanding building automation systems. This wall mount environmental sensor provides simultaneous detection of carbon dioxide (CO2), relative humidity, and temperature, delivering critical data to Sylk compatible controllers via the Sylk bus interface. Designed for professional HVAC ventilation control, the TR50 5D features a sleek design with a backlit LCD