Re: Central Vac overload

[Ian Shef <invalid@xxxxxxxxxxxxx>]

jamesgangnc <jamesgangnc@xxxxxxxxx> wrote in news:b4f81cd1-dad7-4e35-85a3-
3f5a99ce0cb4@xxxxxxxxxxxxxxxxxxxxxxxxxxxx:

<snip>
>
> Somebody else answered that once already.  Basically it's not moving a
> bunch of air so it's not "working" any more.  Now that you know the
> current you should able to design a circuit that alarms at the 8 amp
> range and is off at the 12 amp range.  A 1/4ohm power resistor will
> give you about a 1 volt variation between the two.

And don't forget a delay or other override to handle the situation on startup
and shutdown as you pass through the range getting to 12 amps.