Honeywell #T651A3018, Medium Duty Line Voltage Thermostat, 44-86F Compatible Boiler_Titusville Test button checks burner circuit

Test button checks burner circuit to ensure proper control operation without lowering the water level

PEERLESS BOILER REPAIR PART #50641 - REGULATOR MAXITROL RV111 3"**

Lockout models have external manual reset button

Works standalone or with the THM5421R1021 Equipment Interface Module (EIM)

SMITH PART #01-3702 - Front Section with flange connection* for 28A/RTS/HE Series

Honeywell #T651A3018, Medium Duty Line Voltage Thermostat, 44-86F Compatible Boiler_Titusville Test button checks burner circuitHoneywell #T651A3018, Medium Duty Line Voltage Thermostat, 44 86F Light Duty Line Voltage Thermostats control line voltage valves, motors, contractors, electric heat, elements, duct furnaces, and fan coil units in heating cooling systems. Product Features Automatic heating anticipation. Mount on standard vertical or horizontal outlet box.