大部分普通 HVAC 设备，低压控制部分都是 24VAC...

来源: slow_quick 于 2023-08-08 11:52:14 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

120V 到 24V 的变压器一般就在室内单元控制板附近

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