Discribe the operation of a rooftop package unit air conditioner.
说明屋顶空调机的操作方法。
The package is the effective unit of reuse and release.
包，是复用和发布的有效单元。
Complete package system with condensing unit, tank and pump built entirely into a single cabinet.
本产品与冷凝机组，罐和泵组成了一个完整的系统。
If package has been open or damaged, unit may no longer be clean.
如包装已经打开或者破坏，可能需要再次清洗。
If package has been open or damaged, unit may no longer be clean.
如包装已经打开或者破坏，可能需要再次清洗。
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