Patent ID: 11859861
Assignee: DAIKIN INDUSTRIES, LTD.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 14:
15. A method for providing conditioned air to a structure, comprising:
flowing a refrigerant through a side-flow unit disposed external to the structure, comprising an outdoor coiled-tube heat exchanger comprising first tubing with an outer diameter less than or equal to eight millimeters (8 mm);
flowing the refrigerant through an indoor unit disposed within the structure and comprising an indoor coiled-tube heat exchanger coupled to the outdoor coiled-tube heat exchanger and comprising second tubing with an outer diameter less than or equal to nine millimeters (9 mm), wherein the outer diameter of the first tubing is smaller than or equal to the outer diameter of the second tubing;
circulating air from the structure over the indoor heat exchanger using an airflow circulation system and then routing the air back to the structure via ductworks; and
reducing a pressure of the refrigerant using an electronic expansion valve in fluid communication with at least one of the outdoor or indoor heat exchangers.