A Common Practice in Condensing Units Is to Use a Contactor

A common practice in condensing units is to use a contactor with only one set of contacts opening only one side of the power to the unit. This is to ____.

A) reduce the cost of the contactor
B) make it easier to wire the unit
C) teach the service technician not to put hands in the unit with the power on
D) provide off-cycle heat to the compressor