Resideo TH140-28-01-B Programmable Thermostat 320735-701 or phase cut) via the

or phase cut) via the required ZM series electronic module

preventing accidental shut-offs or dangerous gas leaks

Utilizing the shell-band/shell-screw mount

Field Serviceable: Standardized VG7000 Series bonnet design permits in-place repacking and easy actuator swaps without removing the valve body from the piping

Resideo TH140-28-01-B Programmable Thermostat 320735-701 or phase cut) via theThe 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