Basic thermostat wiring colors air conditioner systems always remember when changing a thermostat for a new thermostat to take a photo of the colors and where they go on the old thermostat or get a pencil and paper and write it down. Ground ground wiring should be green or green with a yellow stripe.
Home Wiring Colors Wiring Library Antidiler
Ac wiring diagram colors. All the above mentioned color code for electrical wiring is to transmit ac current from the mains. Us ac power circuit wiring color codes. In case of wiring dc power like solar or computer networks the following standard has to be followed. Black red and blue are used for 208 vac three phase. Conductors larger than 6 awg are only available in black and are color taped at the ends. The colors adopted as local practice are shown in table below.
Thermostat wiring and wire color chart thermostat wiring colors code. Phase 3 phase 3 wiring should be yellow. It is better to take a good up close photo of the old thermostat and what terminals the colored wiring are terminated. R the r terminal is the power. Brown orange and yellow are used for 480 vac. Phase 2 phase 2 wiring should be orange.
I explain what each of the letter terminals are for the voltage path how it works and also the normal color code used. These are the wire color coding standards that are used in the united states. Color of wire and termination. 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. Phase 1 phase 1 wiring should be brown. Iec dc power wiring color code.
Dc power installations can be divided into earthed or unearthed systems. Neutral neutral wires should be grey. I discuss how to wire the contactor and what the difference is between the.
Gallery of Ac Wiring Diagram Colors
