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Posted by on May 12, 2006, 5:09 pm
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On Thu, 11 May 2006 19:21:07 +0000 (UTC), alvinj@XX.com wrote:
>> My question: Any body here played with this sort of fan? I want to
>> know if I'd fry it if two of the speed circuits were live at the
>> same time. The 120V rotary switches I've found on the web seem all
>> to be make-before-break.
>
>I see lots of arcing on the switch points in your future? ;)
>(but don't know for sure). :/
>
I had a 2 speed motor on my furnace blower for about 12 years, running
with the low speed live all the time, and the high speed kicked in by
the furnace control.Had no problems at all. Just put in a new medium
efficiency, 2 stage burner, with variable speed DC fan to replace the
30 year old unit. It didn't save me $20 per year on gas, but the power
consumption has dropped to less than half.
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>> know if I'd fry it if two of the speed circuits were live at the
>> same time. The 120V rotary switches I've found on the web seem all
>> to be make-before-break.