I have 2 sites with rackmount SU-1400-XL and two external Lifeline 8D AGM batteries, works fine, but I am not worrying about calibrating the runtime numbers.
From: That One Guy Sent: Thursday, January 08, 2015 9:46 AM To: [email protected] Subject: Re: [AFMUG] APC Site Wiring Fault The only two times an electricial has been out he couldnt find anything, I dont know what he did. My guess is its probably overloaded or poor ground, none of them have reversed neutral and ground, we plug that little tester in at each site. I never have measured the difference between the two. But we are primarily at grain legs so I assume old motor windings and rusted out conduit dont help matters. As long as AVR trim and boost are working, our gear is good to go. We do have to set the sensitivity to low at all our sites to keep them from trimming and boosting all day, but as long as we dont see awful extended freezes like last year, and this year is shaping up to be, we see 4-5 years per battery. Though last year we lost most of our APCs because the batteries swelled when they froze to the point they must have broken some of the electronics when the bent the APC frame. Not to swipe a thread, but is anybody here using APC XL series and pulling the internal battery and only using a third party heavy duty battery? APCs industrial/extreme temp batteries are stupid priced On Wed, Jan 7, 2015 at 10:34 PM, Jeremy <[email protected]> wrote: We had one like that once and neutral and ground were swapped. On Wed, Jan 7, 2015 at 9:30 PM, Sean Heskett <[email protected]> wrote: There is for sure something wrong that a good electrician should be able to fix On Wednesday, January 7, 2015, Nate Burke <[email protected]> wrote: Our temps are Below 0 now, and one of my APC UPS's at a site keeps sending an alert 'Site wiring fault' then clears a few minutes later. The APC Knowledge base lists off some various reasons, Overloaded Neutral, Disconnected Groud, but basically says call an electrician. Is this something I should be worried about, or just figure that there is a loose ground connection in the cold. This is at a grain facility which is new within the last year, so it's not like it's old electric. He installed our own breaker back at the panel, but we are sharing a neutral. Anyone else had to troubleshoot this before, or just don't worry about it. The UPS is still self testing just fine. Nate -- All parts should go together without forcing. You must remember that the parts you are reassembling were disassembled by you. Therefore, if you can't get them together again, there must be a reason. By all means, do not use a hammer. -- IBM maintenance manual, 1925
