Central Exhaust timer wiring

Old 03-19-03, 01:03 AM
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Question Central Exhaust timer wiring


I'm wiring a bathroom in my basement. How do I wire a timer to my central exhaust fan? I have two bathrooms upstairs that are have timers wired to the fan, but I can't figure out how to add a third. There are soooo many wires in the box already. HELP please.

Old 03-19-03, 10:55 AM
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Isolate the fan control-circuit from the fan power-circuit by using a fan-control relay.Honeywell has a fan-control relay with a 24 volt control-power transformer and "isolated" 120 volt contacts.Any number of mechanicaly-wound timers can be connected in parallel in the control circuit. But this essentaily is "guessing". Best if you provide more specific information on the existing timers and the ventilating system which uses a "central" fan.

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