Which Wire Is Common. Wiring is subject to safety standards for design and installation. Several common types are landscape lighting wire, sprinkler system.
But the first rule is there are no rules. Wire is rated for the safe operating temperature of the conductors. Electrical wiring is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets, and light fittings in a structure.
A common wire is simply a wire that's dedicated to delivering constant power to your thermostat.
This is the normal wiring practice.
If you are in that range, the only other thing it can be is the output voltage from the controller to. Do you have an electrical issue you're looking to fix? Brown is common,blue is in cool mode green/yellow is heat,orange is compressor, gray and white go to air handlier.
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