insteon thermostat wiring diagram Wiring Diagram VS. Schematics. It’s very easy to obtain perplexed regarding wiring layouts as well as schematics. Wiring..Line Joint. A line represents a wire. Cables are made use of to link the parts with each other. There need to be a..Kinds of Link. A collection circuit is a circuit in which components are attached along a..More Insteon thermostat Wiring Diagram | Free Wiring Diagram Was this helpful? INSTEON 2441TH OWNER'S MANUAL Pdf Download | ManualsLib Wire Connections If the terminal designations on your old thermostat do not match those on INSTEON Thermostat, refer to the chart below or the wiring diagram that follows: Wire color from furnace/AC unit.. Page 13: Test Operation A visual inspection of each display will reveal the Master status of each INSTEON Thermostat or Zone Thermostat.