c is common power

来源: calvinwch 于 2017-09-22 07:19:46 [档案] [博客] [旧帖] [给我悄悄话] 本文已被阅读：次 (221 bytes)

回答: 请这里的懂空调暖气的大虾指教由原子蛋于 2017-09-22 06:56:06

R is 24vac power from transfomer from furnaces. below diagram should help you understand better.

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• 谢谢 -原子蛋- ♂ (0 bytes) () 09/22/2017 postreply 19:02:01

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