Patent ID: 11971202
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 7:
8. An air-conditioning apparatus in which an outdoor unit installed in an outdoor space and an indoor unit installed in an indoor space are connected by refrigerant pipes to form a refrigerant circuit,
wherein
one or more pairs of valve kits are provided at the refrigerant pipes by which the outdoor unit and the indoor unit are connected, and allow a pair of additional refrigerant pipes on an inflow side and an outflow side to be connected to one of the one or more pairs of valve kits, the pair of additional refrigerant pipes being additionally provided to enable a new indoor unit to be added after installation of the air-conditioning apparatus,
the valve kits of the one or more pairs of valve kits have respective distal end portions that are inclined upwards relative to a horizontal direction, the distal end portions each allowing an associated one of the additional refrigerant pipes to be connected to the distal end portion, and
branch joints are each provided in the middle of an associated one of the refrigerant pipes by which the outdoor unit and the indoor unit are connected, and at each of the branch joints, an associated one of the refrigerant pipes connected to each of the valve kits of the one or more pairs of valve kits branches off.