How do I Wire a 3 Phase HVAC Unit?

Connect the black wire from the HVAC unit to line one of the electric panel. Secure it in place with a screwdriver. If your unit does not have a black wire use the brown wire.

Connect the red wire from the HVAC unit with line two of the electric panel. Secure it in place with a screwdriver. If your unit does not have a red wire use the orange wire.

Connect the blue wire from the HVAC unit with line three of the electric panel. Secure it in place with a screwdriver. If your unit does not have a blue wire use the yellow wire.

Connect the green cable to the ground. The ground is the green screw on the electric panel. Secure it in place with the screwdriver.

Connect the white cable to the neutral cable from the electric panel. Secure in place with the screwdriver. Most three-phase systems do not have a neutral if this is the case then just tighten the screw in place.