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Posted by Jeffrey Lebowski on February 15, 2007, 7:30 pm
> I was servicing my furnace the other day and when cleaning the blower
> fan I noticed that the fan motor is four speed motor with plug in
> terminal block marked " C 1 2 3 4 " the existing wiring is normal speed
> plugged into terminal 1 and secondary speed plugged into terminal 2 with
> terminal C being the common.
>
> I can't find any information about this type of terminal block nor did I
> have time to test the actual speeds by plugging into the other terminals.
>
> Is anybody have experience with this type of termination and is terminal
> number 1 the highest or lowest speed?
>
Probably yes.
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