Replacing a thermostat - Wiring Colors

Replacing thermostat by yourself with out using Denver HVAC technician can be pretty harrowing it implies hook up the electrical circuitry correctly. Inside of the thermostat large number of terminals which must go to the right wires. The R-terminal puts in the thermostat's power. R resulted in Red, the Colorado heating repairman should have red wires going to that terminal. This power get from the transformer. The transformer is inside the condensing unit or the actual environment handler in a disect system. Because they is supplying power, it is just common sense to kill the capacity to both the condenser whom air handler before at the thermostat.

The RC terminal puts in the power for cooling. Several people large HVAC systems prefer two transformers, one to chill and one for drive. In such a some reason, the power from the ac system stays in the thermostat terminal. A jumper can be installed between RC and RH resource single transformer hvac system. The RC terminal is without a doubt red.

The RH terminal helps make the heating power-in. This is also red and also are jumped to the REMOTE CONTROLLED.

The Y terminal is yellow and actually reaches the compressor relay. Some Denver HVAC specialists have a shot at terminal board strip with air handler control board constructing splices not needed. Y2 may just be light blue and is code for a section stage cooler. If you actually have two compressors, both should work the actual same thermostat. Most Denver heating and air companies do not have to the cooling of the actual two stage company.

W helps make the heating terminal. W is for white terminal. This are directly to your very hot source, whether it deemed a furnace or boiler. W2 is for second stage heat and they are usually brown. This remains gas furnaces with low and high settings. Heat pumps propose W2 for auxiliary sun.

G is for green and goes to the indoor blower admirer relay.

C is with regard to you Common, and does do not specific color although black is noted frequently. For digital thermostats that consume power, the common wire is needed to complete the 24 volt enterprise.

Orange "O" and "B" Yellowish are for heat designer high heel sandals. Rheem and Ruud heat pumps utilize B terminal for our cooling reversing valve. Other HVAC manufacturers utilize O terminal. Trane, Lennox, Goodman, Ducane, Heil, Sack, Fedders, Amana, and Janitrol are normally hooked with the O terminal by HVAC contractors in Denver.

E is for emergency heating. This falls short of standard color but is usually wired to the fixing relay or E end of life strip board.

S1 though S2 are for patio air sensors. This falls short of standard color, but should use a shielded wire to reduce interference and the chance of water damage from outside. Warning: These colors is definitely the defaults. The person wiring the thermostat must have used unconventional color code.

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