Carrier Air Conditioner Wiring Diagram

Replacing thermostat by yourself without a Denver HVAC technician may be beauteous harrowing if you do not hook up the wiring correctly. Inside of the thermostat there are various terminals which will have to hook up with the right wires. The R-terminal is the thermostat’s power. R means Red, the Colorado heating repairman will have to have red wires going to this terminal. This power comes from the transformer. The transformer is ordinarily in the condensing unit or the air handler in a split system. Because they are providing power, it is a good idea to kill the power to both the condenser and the air handler before working on the thermostat.

The RC terminal is the power for cooling. Some big HVAC systems have two transformers, one for cooling and one for heat. In such a case, the power from the ac system goes to the thermostat terminal. A jumper may be installed amongst RC and RH for a single transformer heating and cooling system. The RC terminal is likewise red.

The RH terminal is the heating power-in. This is also red and may be jumped to the RC.

The Y terminal is yellow and goes to the compressor relay. Some Denver HVAC specialists use a terminal board strip on the air handler control board which makes splices not needed. Y2 is ordinarily light blue and is the code for a second stage cooler. If you do have two compressors, both must work off the same thermostat. Most Denver heating and air companies do not need the cooling of a two stage company.

W is the heating terminal. W is for white terminal. This must go directly to your heating source, whether it be a furnace or boiler. W2 is for second stage heat and is normally brown. This is for gas furnaces with low and high settings. Heat pumps use W2 for auxiliary heat.

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

C is for Common, and does not have a specific color though black is seen frequently. For digital thermostats that consume power, the mutual wire is necessary to finish the 24 volt circuit.

Orange “O” and “B” Blue are for heat pumps. Rheem and Ruud heat pumps use the B terminal for the cooling reversing valve. Other HVAC manufacturers use the O terminal. Trane, Lennox, Goodman, Ducane, Heil, Carrier, Fedders, Amana, and Janitrol are commonly hooked up to the O terminal by HVAC contractors in Denver.

E is for emergency heating. This has no frequent color but will have to be wired to the heating relay or E terminal strip board.

S1 and S2 are for outdoor air sensors. This has no standard color, but must use a shielded wire to reduce interference and the possibleness of water harm from outside. Warning: These colors are the defaults. The person wiring the thermostat could have used unconventional color coding.

From the Back Cover This book provides HVAC/R service technicians with in particular practical info on the distinguishable wiring diagrams, methods, technician short-cuts, and potential pitfalls encountered on the job. It begins with a discussion of ordinary electricity and electrical circuits, and then moves speedily into explaining wiring diagrams for HVAC and refrigeration systems, and the new widgets that are ran into with each new diagram. It features accessible, technician-level explanations of electronics. Electrical Concepts. Simple Currents. Standing Pilot Furnaces. Heating/Air Conditioning Circuits. Troubleshooting Strategies. Testing and Replacing Common Devices. Repair Strategies. Commercial Systems. Motor Applications. Power Wiring. Testing and Replacing Motors and Start Relays. How Motors Work. Low-Voltage Room Thermostats. Electronic Ignition Gas-Fired Furnaces. Oil Heat. Electric Heat. Boilers. Heat Pump. Ice Makers. Miscellaneous Devices and Accessories. Wiring Techniques. DDC Controllers. For HVAC/R service technicians.

Carrier Air Conditioner Wiring Diagram

Carrier Air Conditioner Wiring Diagram Image

Carrier Air Conditioner Wiring Diagram

Carrier Air Conditioner Wiring Diagram Picture

Carrier Air Conditioner Wiring Diagram

Carrier Air Conditioner Wiring Diagram Picture

Carrier Air Conditioner Wiring Diagram

Carrier Air Conditioner Wiring Diagram Photo

This entry was posted in Carrier Air Conditioner and tagged , , , , . Bookmark the permalink.

Leave a Reply