Re: [RE-wrenches] Transformerless inverter reliability

[Martin E. Herzfeld]

NEC 110.3(B) Installation and Use. "Listed or labeled equipment shall be installed and used in accordance with any instructions included in the listing or labeling." (1) "5.2 Selecting the mounting location" Page 19: "• Do not expose the Sunny Boy to direct sunlight, in order to avoid power reduction due to excessive heating." http://files.sma.de/dl/10707/SB8-10TL-IUS103811.pdf (2)  Others . . . On 4/16/2012 9:05 AM, Joel Davidson wrote: Wrenches, Los Angeles Department of Water & Power (LADWP), the largest and most influential municipal utility in the US is finally going to allow transformerless inverters for residential PV systems. Are there any design, installation or reliability issues to consider with the SMA and other high-frequency transformerless inverters. Can they be mounted on a hot south or west wall or do the have to be kept cool in the shade? Joel Davidson _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & 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 --

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