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-boun...@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
NABCEP Registered Continuing Education Providers™
970.672.4342 <tel:970.672.4342>
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