remote control of fresh-air vent, plus control from kitchen fan? - AVS Forum
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post #1 of 1 Old 03-24-2013, 11:00 PM - Thread Starter
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I have a new electrically-operated fresh-air vent which runs off a 24V transformer on a light switch. I want to upgrade it for three goals:
  1. Replace the light switch with a remote-controlled switch, for remote control via HA. I haven't made a decision about which system (C4, Insteon are main contenders) but I figure this part should be easy to accomplish.
  2. I also want the vent to open whenever I turn on the kitchen fan on HIGH.
  3. I want either/both controls to work without affecting the other.

My electrician is baffled as to how to do the second/third parts. Simply wiring both sets of 110V outputs to the existing transformer seems to risk the wall switch activating the fan. Another idea would be to add a second transformer on the kitchen switch, then connect both transformers' outputs to the vent. But would the unused transformer be energized, again?

Anyways, any suggestions would be greatly appreciated! Even just some help with the applicable electrical/electronic lingo would be helpful.
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