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Thermostat b wire color
You’ll be using only . Aug 18, · Thermostat Orange and Dark Blue Wire (O and B) These wires are used for operating the heat pump, specifically the reversing valve on a heat pump. Their symptoms may be similar, but they differ largely in how they're transmitted from person to person. There are three primary types of hepatitis. Some models require a dark blue or B-wire . When it comes to the dark blue wire, it can reverse valve heating. If you have any doubts, get a professional thermostat installation. Yellow wires. However, please note that this is a list of common wire colors used and your thermostat may contain different colored wires. Green wires. Below are the common thermostat wire colors: White wires. It terminates at your air handler or furnace. The white wire connects to terminal W in industry-standard thermostats. White wires, Yellow wires, Green wires, Orange wires, Red wires: Rc and Rh, Blue or C wires, The White Wire, The white wire underneath your thermostat connects to your heating system. Homeowners that have a heat pump, in general, have blue. 6 rows · Jan 27, · A blue wire is usually the common wire. Find out the benefits of B vitamins.