T Stat Wire Diagram

Heat pump thermostat wiring a typical wire color and terminal diagram.

T stat wire diagram.

Knowing what each thermostat wire does can help in wiring up a new or replacement room thermostat. Even the most seasoned people who enjoy diy may come across problems with wiring a thermostat. Thermostat wire reference chart. This data can also be helpful if thermostat wires have become mixed up or improperly color coded by allowing you to trace wires back to their control connection point.

It is a red wire and comes from the transformer usually located in the air handler for split systems but you may find the transformer in the condensing unit. Southwire 250 ft 18 8 thermostat wire by the roll. Item 539961 model 65676944. Wire helps transmit data over a longer distance.

If possible share the section below with someone more experienced that can help explain how the thermostat above is capable of working. The larger 18 ga. The color of wire r is usually red and c is black. Color of wire and termination.

Refer back to the diagram often and don t get ahead of yourself. Over a long distance the signals can become to weak to get a reading. Furnace thermostat wiring diagram terminal letters on a thermostat and what they control the hot wire 24 volts usually red from the transformer is the main power wire to turn on or off a furnace components. Thermostat wiring and wire color chart thermostat wiring colors code.

C is known as the common terminal. For example if the red wire is connected to w on the thermostat the furnace should turn on. Using a pocket knife trim off 1 4 of the colored coating to expose the wire. The main trouble is dealing with those different colored wires knowing which one does what and if that wasn t enough you also have numbers and letters to deal with.

This article explains just what wire at a room thermostat actually controls. Heck now i m not calling anyone a dummy. My paperback and e book. R the r terminal is the power.

Wiring diagrams you may need to read the following section carefully several times.