Dual-circuit heating, ventilation, air conditioning, and refrigeration systems and associated methods

An environmental control system comprising:

• an indoor unit comprising:
• a compressor comprising:
• a first compression chamber,
• a second compression chamber, and
• a first motor;
• a heat exchanger comprising:
• a first set of microchannel coils, and
• a second set of microchannel coils;
• a first refrigerant conduit;
• a second refrigerant conduit;
• an outdoor comprising:
• a compressor comprising:
• a third compression chamber,
• a fourth compression chamber, and
• a second motor;
• a heat exchanger comprising:
• a third set of microchannel coils, and
• a fourth set of microchannel coils;
• a first refrigerant circuit comprising the first compression chamber, the first set of microchannel coils, the first refrigerant conduit, the third compression chamber, and the third set of microchannel coils;
• and
• a second refrigerant circuit fluidly comprising the second compression chamber, the second set of microchannel coils, the second refrigerant conduit, the fourth compression chamber, and the fourth set of microchannel coils, the second refrigerant circuit being fluidly separate from the first refrigerant circuit.

A vapor compression system comprising:

• a compressor comprising:
• a first compression chamber having an input pipe and an output pipe,
• a second compression chamber having an input pipe and an output pipe, and
• a motor;
• a condenser comprising:
• a first heat exchanger comprising:
• a first set of microchannel coils, and
• a second set of microchannel coils;
• an evaporator comprising:
• a second heat exchanger comprising:
• a third set of microchannel coils, and
• a fourth set of microchannel coils;
• a first refrigerant circuit comprising the first compression chamber, the first set of microchannel coils, and the third set of microchannel coils;
• and
• a second refrigerant circuit comprising the second compression chamber, the second set of microchannel coils, and the fourth set of microchannel coils, the second refrigerant circuit being fluidly separate from the first refrigerant circuit.