Refrigerant cooling and lubrication system

A heating, ventilation, air conditioning (HVAC) unit for an HVAC system comprising:

• a compressor having a motor and a drive;
• a condenser fluidly connected to the compressor;
• a unit controller;
• and
• a refrigerant cooling and lubrication assembly that comprises:
• a condenser source line fluidly connected to the condenser,
• a refrigerant pump line fluidly connected to the condenser source line, the condenser source line feeds into the refrigerant pump line, the refrigerant pump line is fluidly connected to at least one of the motor and the drive of the compressor,
• a refrigerant pump located on the refrigerant pump line, the refrigerant pump having an inlet and an outlet fluidly connected with the refrigerant pump line, and
• a flow control device disposed on the condenser source line, the flow control device disposed on the condenser source line having an open state and a closed state,
• wherein the unit controller is configured to receive an input from a sensor to determine whether an appropriate pressure differential is present in the refrigerant pump line, in order to activate the flow control device disposed on the condenser source line to direct refrigerant to the compressor.