The capacitor stores an electrical charge and releases it to the start winding of the motor, creating a phase shift that generates the necessary rotational force. Safety First: Power Down and Verify Safety is the non-negotiable first step in any electrical work.
Start Capacitor Wiring for HVAC Unit: Step-by-Step Wiring Instructions
Disconnect the wires by gently pulling them off the lugs. Ensure the wires are stripped to the correct length—usually about 1/2 inch—and twisted tightly before securing them under the terminal screws.
There are typically two types: the run capacitor, which remains engaged to improve motor efficiency and torque during operation, and the start capacitor, which is only used for a few seconds during startup. Capacitors have insulated terminals, but you should still avoid touching the metal contacts.
Start Capacitor Wiring for HVAC Unit
The capacitor, often a cylindrical or rectangular component, acts as a temporary energy storage device that provides the necessary jolt to start the motor and then helps it run more efficiently. The meter should read zero.
More About How to wire capacitor hvac
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