Belimo 01DTS-505X Sensor 321894-709 and Comfort series thermostats

and Comfort series thermostats

Wide Compatibility: Designed as a direct fit for numerous Trane and American Standard furnace models

a faulty Nordyne 1023983R Pressure Switch is a primary suspect

you know that a failing blower is the quickest way to pull a "no-heat" or "no-cooling" call

allowing technicians to match precise airflow requirements across various Enviro-tec series

Belimo 01DTS-505X Sensor 321894-709 and Comfort series thermostatsThe Belimo 01DTS 505X is a high performance low temperature detection sensor, commonly referred to as a freeze stat, designed for critical protection of water and air heaters in commercial HVAC systems. This unit features a manual reset mechanism and a 20ft (6m) copper capillary probe filled with vapor pressure R507 to ensure rapid response times when temperatures drop near the freezing point. Utilizing a single pole double throw (SPDT) changeover