Jason, See page 29 of the SB7000TL manual for grounding requirements and page 30 for a schematic. Both the pos and neg are disconnected in the DC disco that comes with the SB7kTL. One problem that we recently ran into is that the TL makes WAY more noise upon start-up and shut-down than the non-TL so do not mount the inverter next to any noise-sensitive area such as a bedroom. The installation manual mentions this very slightly (insufficiently). Seriously, WAY more noise.
Eric Stikes SunHarvest 001.530.798.3738 (Cell) ----- Original Message ----- From: Jason Andrade To: [email protected] Sent: Friday, February 14, 2014 9:08 AM Subject: [RE-wrenches] Ungrounded P.V. Wrenches, I have yet to do a Transformer-less inverter and am understanding that they are an ungrounded system and that both the positive and negative of each string will need to be disconnected. I started with the sma SB series and now find myself using mainly Enphase. The SMA TL dual mppt lighter weight inverter has my attention, especially with AB327 Knocking on the door but that's another topic. Jason West Coast Sustainables Jason Andrade C-46# 974647 (530) 410-4745 Cell (530) 241-7498 Office (530) 348-5301 Fax [email protected] ------------------------------------------------------------------------------ _______________________________________________ List sponsored by Home Power magazine List Address: [email protected] Change email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
_______________________________________________ List sponsored by Home Power magazine List Address: [email protected] Change email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
