For A C Thermostat Wire Diagram
38+ For A C Thermostat Wire Diagram PNG. The 18 refers to the gauge and the 5 refers to how many individual wires are inside the (this diagram summarizes a thermostat survey's findings: Now you will see wires coming into different terminals of your thermostat marked r, w, y, g, rc, c, o/b etc.
Furnace thermostat wiring falls in the diy category that a handy type person can hook up or fix.
That is why you didn't find the 24v you need on the empty terminals. To understand which thermostat wire is connected to each terminal, we must first understand each wire's function. The r wire that goes to the thermostat to energize the other terminals when fan, cooling, or heat is called for is the other wire coming from the transformer. How to reverse engineer your own thermostat.
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