which are the industry standard for most furnace and air handler control boards

designed to match the shaft diameter of standard residential blower motors

The Functional Devices TR175VA001 uses color-coded leads to designate voltage: the Black wire is Common

this HVAC flame sensor replacement ensures reliable signal transmission to the ignition control module

Thermal cycling and the acidic nature of condensate can cause fatigue in older plastics

Johnson Controls TEC3313-14-000 Thermostat Els PW 17895 which are the industry standardThe Johnson Controls TEC3313 14 000 is an advanced, 19 30V AC low voltage standalone thermostat controller designed specifically for precision fan coil and zoning control. This model serves as the designated direct replacement for TEC3311 00 000, featuring an updated white housing and integrated occupancy sensor for proactive energy management. Built for commercial environments like hotels and schools, it provides on off or floating control for 2 pipe