Aquastsr in Heating loops [RE-wrenches]

[Drake Chamberlin - Electrical Energy]

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Hi Dana,

I think it is a 2 amp, 24 volt model.

Thanks,

Drake

At 10:13 PM 05/24/2001 -0700, you wrote:
>Probably which March are you using?
>----- Original Message -----
>From: Drake Chamberlin - Electrical Energy <solar at eagle-access.net>
>To: <RE-wrenches at topica.com>
>Sent: Thursday, May 24, 2001 9:53 AM
>Subject: Re: Aquastsr in Heating loops [RE-wrenches]
>
>
> > We are working with a system where the Aquastar shuts off.  The loop
> > between the heater and tank is circulated by a March pump.  Is that the
> > problem?
> >
> > Drake
> >
> > At 09:49 AM 05/24/2001 -0700, you wrote:
> > >The Aquastar requires a tank because the low flow of  low voltage pumps
>is
> > >too low to trigger the flow sensor in the aquastar. I have done about 16
>or
> > >17 of these and the NEW Bosch-Aquastar heaters are not modifieable like
>the
> > >old units. You used to be able to do aseries of easy unit modifications
>to
> > >assit the low flow to an even lower flow. The tank acts as a buffer to
> > >prevent the over haeting that will result from a flame modulation unit
>that
> > >is not sensitive enough to handle the evential rise in temerature that
>will
> > >result when the loop gets warmed up and the return temp is 165 to 170 if
>you
> > >are running 180 deg to the base boards.
> > >Use the tank and donot use an El Sid pump to the heater. Use 10 watt
>Hartell
> > >pump it gives good head for the heater. Use ElSid pumps for the base
>board
> > >pumps, they are much quieter.
> > >
> > >
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