Method and System for Cooler Conversion to a Refrigerator

A modular retrofit unit for retrofit into a cooler having a drain port, the retrofit unit comprising:

• a. an internal heat transfer module placed insider of the cooler, the internal heat transfer module processing a closed loop liquid for cooling the interior of the cooler, the internal heat transfer module comprising a radiator, a liquid pump, and a liquid reservoir;
• b. an external liquid cooling module adjacent the outside wall of the cooler, the external liquid cooling module processing a refrigerant contained within the external liquid cooing module for heat exchange with the closed loop liquid for supply to the internal heat transfer module, the external liquid cooling module comprising a condenser, a refrigeration compressor, an evaporator, and a throttling device;
• c. at least one inlet conduit and at least one outlet conduit for moving the closed loop liquid between the external liquid cooling module and the internal heat transfer module during the refrigeration process;
• and
• d. a power source connected to the external liquid cooling module to drive the internal heat transfer module and the external liquid cooling module.