Superheat Control Scheme

A method comprising:

• removing heat from a refrigerant using a high side heat exchanger;
• storing the refrigerant from the high side heat exchanger in a flash tank;
• removing heat from a first space using a first load comprising the refrigerant from the flash tank;
• removing heat from a second space using a second load comprising refrigerant from the flash tank;
• compressing the refrigerant from the first load using a first compressor;
• transferring heat from the refrigerant from the first compressor and the second load to the refrigerant from the high side heat exchanger using a heat exchanger;
• and
• directing the refrigerant from the first compressor and the second load to the second compressor using the heat exchanger.

A system comprising:

• a first load configured to use a refrigerant from a flash tank to remove heat from a first space proximate to the first load;
• a second load configured to use the refrigerant from the flash tank to remove heat from a second space proximate to the second load;
• a first compressor configured to compress the refrigerant from the first load;
• and
• a heat exchanger configured to:
• transfer heat from the refrigerant from the first compressor and the second load to the refrigerant from a high side heat exchanger;
• and
• direct the refrigerant from the first compressor and the second load to a second compressor.