Rick, On most of their home standby models, Generac defeats the two wire start capability in programming and ships them set up to auto-start on a loss of utility power only. On most of these models with the Evolution or Nexus controller there is a way to re-program them for two-wire start capability. This involves entering a password on the generator controller and selecting the two-wire start option. One also has to install the start trigger wires into the controller plug, so Generac sells a kit with the wires and programming instructions for two-wire start. It’s hard to find but out there. Note that Generac standby generators are set up so that the generator controller senses the utility loss and a trigger signal is then sent to the transfer switch, whereas most other brands have the controls and utility loss sensing hardware in the transfer switch and the generator is triggered by a simple two-wire start signal from the transfer switch board.
Luke Christy Renewable energy consultant. NABCEP Certified PV Installation Professional™: Solar Gain Services, LLC PO Box 531 Monte Vista, CO. 81144 [email protected] <mailto:[email protected]> 719.588.3044 > On Jun 17, 2021, at 7:41 AM, [email protected] wrote: > > Wrenches, > > I’m looking to tie in a Generac Powerpact 7.5kW generator with transfer > switch to a Sol-Ark 12kW. The Sol-Ark has a two wire start (NO or NC) > capability, however, the Generac transfer switch operates on loss of 240V. Is > my only option to use a relay driven by the two wire start to drop 240V to > the transfer switch? > > Thank you, > > rick brown > SolShine Energy Alternatives, LLC > Electrical & Solar Contracting Services > www.SolShineEnergy.com <http://www.solshineenergy.com/> > Check, Virginia 24072 > Office: 540.235.3095 > Mobile: 540.808.9502 > > VA Class A Contractor Lic# 2705147660 > VA Master Electrician Lic# 2710062762 > VA Alternative Energy Systems Installer > NABCEP Certified PV Installation Professional 110112-21 > > <PastedGraphic-1.tiff> > > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/[email protected]/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org >
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