[RE-wrenches] need to set up an older generac remote start circuit

[Blair May]

With the ATS, the generator is supplied utility power not only to keep the starter battery charged but when the gen in “auto” it is sensing the utility power and when that goes away, actuates the start cycle.
> On Oct 2, 2025, at 12:39 PM, Kirk Herander via RE-wrenches <re-wrenches at lists.re-wrenches.org <mailto:re-wrenches at lists.re-wrenches.org>> wrote:
> 
> Generac makes a 2-wire conversion kit, but it's for newer models than the one I'm stuck with unfortunately.
> 
> On Thu, Oct 2, 2025 at 12:35 PM William Miller via RE-wrenches <re-wrenches at lists.re-wrenches.org <mailto:re-wrenches at lists.re-wrenches.org>> wrote:
> One Generac I worked on needed a module to convert to two wire start. Plus there was some programming. 
> 
> 
> William Miller
> Miller Solar.com <http://solar.com/>
> 805-438-5600
> www.millersolar.com <http://www.millersolar.com/>
> 
> 
> On Thu, Oct 2, 2025 at 9:23 AM Kirk Herander via RE-wrenches <re-wrenches at lists.re-wrenches.org <mailto:re-wrenches at lists.re-wrenches.org>> wrote:
> Hello folks,
> 
> This Generac belongs to an old customer. He picked it up used. Runs good, but apparently was used w/ an ATS, which is no longer present.
> No doc's, no labels to identify model.
> 
> But I have set up a remote start in a similar model 20+ years ago.w/o the ATS, just can't remember how. Terminals 23 & 194 connect to the ATS contactor coil to change state when it starts, I just can't remember the easy way to initiate the start command itself. There don't appear to be additional terminals for a dedicated start signal.
> 
> The red and black wires come from inverter AC to keep battery trickle charger energized, etc. I wonder if simulating loss of this AC, with genny control switch in auto mode, would initiate the run cycle. 
> 
> In the meantime, any insights from my fellow old-timers (new ones welcome, too)? Thanks.
> 
> 
> 
> I've worked on this mo
> 
> -- 
> 
> 
>  <>
> Kirk Herander /  <>kirkh at vermont.solar <mailto:kirkh at vermont.solar>
> Owner|Principal, VT Solar, LLC
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> 
>  <>
> Kirk Herander /  <>kirkh at vermont.solar <mailto:kirkh at vermont.solar>
> Owner|Principal, VT Solar, LLC
> Celebrating our 34st Anniversary 1991-2025!!
> dba Vermont Solar Engineering
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Blair “TUMP” May
Solarwinds Northernlights east
"We must all learn to live together as brothers,
 or we all will perish as fools."
MLK





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