[RE-wrenches] PV-direct air heating?

[Bill Loesch]

Dan & Bill,
If mini-split equipment is what you are using/considering you might want 
to look further at

www.hotspotenergy.com

John Williams who runs the place was at the AHR show in Orlando earlier 
this year and has DC and solar HVAC equipment.
Hope it helps,

Bill Loesch
Solar 1 - Saint Louis Solar
314 631 1094

On 3/9/2016 9:40 PM, William Dorsett wrote:
>
> Dan, I think it is Gree that has a PV direct mini-split heat pump for 
> both heating and air conditioning. It may have run on two 250 watt 
> modules. When in non-PV mode, I believe the AC is rectified to DC and 
> run through an inverter. And there are now a few others as 
> well….possibly Fujitsu.
>
> Bill Dorsett
>
> Manhattan, KS
>
> *From:*RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] 
> *On Behalf Of *Dan Fink
> *Sent:* Wednesday, March 09, 2016 8:07 PM
> *To:* RE-wrenches
> *Subject:* [RE-wrenches] PV-direct air heating?
>
> I have an interesting question I haven't run into before, using 
> existing equipment, some in place, some just waiting for an install.
>
> Has anyone here ever done an MPPT PV-direct install to DC air heaters?
>
> Advanced Energy used to have a PV-direct MPPT water heating 
> controller, but the residential division of their company no longer 
> exists. We are looking at 1200-1500 watts of PV.
>
> How would one program a Midnite Classic (for example) to most 
> efficiently connect PV to DC heating elements without a battery 
> bank/diversion load setup, whether for water or air?
>
> This one's new to me; I've never tried PV direct heating before.
>
> Thanks in advance for any input.
>
> Dan Fink
>
> Adjunct Professor of Solar Energy Technology, Ecotech Institute
>
> IREC Certified Instructor™ for:
>
> ~ PV Installation Professional
>
> ~ Small Wind Installer
>
> Executive Director, Buckville Energy
>
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> 970.672.4342 <tel:970.672.4342>
>
>
>
>
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