Patent ID: 8820105

Claim:
A system comprising: a compressor, a condenser and an evaporator in fluid communication, the compressor, condenser and evaporator being mounted to form an integral unit; a motor connected to the compressor to drive the compressor, the motor being mounted on the unit, the motor being powered by a voltage greater than 600 volts and less than 25,000 volts; a variable speed drive, the variable speed drive being operable to provide a variable current and variable voltage to the motor to operate the motor at variable speeds, the variable speed drive comprising: a first enclosure mounted on the unit near the motor; a second enclosure mounted next to the unit; an inverter electrically connected to the motor, the inverter being mounted in the first enclosure; and a disconnect switch connected to a supply voltage for the variable speed drive, the disconnect switch being mounted in the second enclosure.