Wire Diagram For Thermostat. Use a 5 conductor thermostat cable for standard thermostat installations. The thermostat has 4 knockouts on the cover for surface wiring wiring diagrams.
Blue this is your common or c wire. One end to the other nothing fancy in between. Injunction of two wires.
The thermostat uses 1 wire to control each of your hvac systems primary functions such as heating cooling fan etc.
These two connections will ensure that there is power to the thermostat that you are. Heres a diagram of a thermostat that is being powered by an external transformer. Trane thermostat wiring wiring diagram is the visual representation of a complex electric circuit. Yellow the yellow wire connects to your compressor.