Split Air Conditioner (分体空调)

Adds realistic split-type air conditioners: a wall-mounted indoor unit and a freestanding outdoor unit, connected by copper pipes.

Features:
- Indoor unit mounts on walls like a wall lamp. It does not block movement and does not weaken your wall.
- Outdoor unit can be placed anywhere - run copper pipes to it, even through walls.
- One outdoor unit supports up to two indoor units.
- Cooling and heating in one machine (heat pump mode, toggle with a gizmo).
- Outdoor unit efficiency drops if its surroundings get too hot - give it fresh air!

添加现实风格的分体式空调：壁挂室内机 + 落地室外机，中间用铜管连接。

特性：
- 室内机像壁灯一样挂在墙上，不占格子、不破坏墙体。
- 室外机可放在任何位置，铜管可穿墙铺设。
- 一台室外机最多带两台室内机。
- 冷暖一体（热泵模式，按钮切换）。
- 室外机环境过热会降低效率——记得给它通风！
（注意：必须开展研究和加装铜管才能使用）