[Equest-users] Geothermal Water-to-Water Heat Pumps, and VAV Terminals

[Steve Mignogna]

Jon-

Let me know if this helps.

-You need to create a chiller of type "Loop-to-Loop Heat Pump".

-You will need to specify the CHW Loop, CW Loop, and HW Loop.

-However, the CW Loop is actually a "Lake/Well" type loop.

-The Lake/Well Loop needs to have a Lake/Well GLHX attached to it.

-I would also reccomend installing a top up boiler to the hw loop.

This way you have a geothermal chiller that is connected to a ground well.
This chiller is producing both hot and cold water that can be connected to
any type of air-side system you wish.

Hope that was what you were looking for,

-- 
Steve Mignogna
Atelier Ten



On Wed, Nov 26, 2008 at 8:59 AM, Jon Evans <jevans at sustaineng.com> wrote:

> I have a unique system I'm trying to setup in Equest and was wondering if
> it
> is possible, and if so, what the trick is.
>
> I would like to couple a VAV system to water-to-water geothermal heat
> pumps.
> So essentially I will have a VAV system on the terminal side and the
> heating
> and cooling plants will be geothermal water-to-water heat pumps. One will
> feed the chilled water coil in the air handler, and another the reheat
> coils
> at the VAV boxes.
>
> I can set up a heat pump chiller that feeds the air handler with a
> geothermal condensing loop.  But I'm having problems attaching a heat pump
> to the hot water loop, and the hot water loop to the geothermal condensing
> loop.
>
> Thanks for any insight you might have.  Hope everyone has a nice holiday!
>
> Jon Evans, PE
>
> Sustainable Engineering Group LLC
> 431 Charmany Drive Suite 102
> Madison, WI 53719
>
> Tel: (608) 231 9664 x 13
> Fax: (608) 231 9665
>
> E-mail: jevans at sustaineng.com
> Web: www.sustaineng.com
>
>
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