With Instructables you can share what you make with the world, and tap into an ever-growing community of creative experts.
Tell us about yourself!
I believe you'll have to check the specifications of the relay you're going to use. Example if the relay spec is 220V 5A, and AC unit is consuming about 7-9A, then you'll have to use a relay than has greater then 9A specs, lets say use a 220V 10A electromechanical relay.
Let your inbox help you discover our best projects, classes, and contests. Instructables will help you learn how to make anything!
© 2016 Autodesk, Inc.