The clutch in a compressor uses far more current than can be accommodated through the on-dash A/C switch. It is for that reason, as noted above, that a relay is used. When power from the driver’s control reaches the compressor clutch relay, it actuates the relay’s internal switch. A much greater current then is delivered to the compressor clutch, the clutch engages the rotation of the belt with the compressor, and the compressor starts to function.
No comments:
Post a Comment