Yes, you should be using a 120volt, regular switch that will turn on/off a contactor that controls the compressor . . . your compressor should have a starter on it (a contactor with an overload relay) that starts/protects the motor on the compressor. If you don't, then would suggest getting that, the "regular" 120 volt single phase switch controls the coil on the contactor/starter to the compressor . . . when in doubt, check with an electrician . .

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