Resideo TH140-28-01-B Programmable Thermostat 320788-704 maintaining safety and performance standards

maintaining safety and performance standards essential for professional contractors

you know that keeping a system clean and dry is the baseline for preventing mid-summer callbacks

Its rugged 2-inch stainless steel probe is filled with thermally conductive epoxy to ensure a fast response time while maintaining environmental integrity

the Aprilaire 5531 Valve may be obstructed by scale or sediment

the internal safety interlock switch is paramount

Resideo TH140-28-01-B Programmable Thermostat 320788-704 maintaining safety and performance standardsThe Resideo TH140 28 01 B Programmable Thermostat is a versatile 7 day programmable digital thermostat designed for high precision control in hydronic, line voltage, and low voltage heating environments. Engineered to handle everything from millivolt systems to 240 Vac heating applications, this unit is a staple for technicians installing electric baseboard heaters, as well as gas or oil fired boilers. With a single pole double throw (SPDT) switching