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

[Kirk Herander]

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> 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
> 805-438-5600
> www.millersolar.com
>
>
> On Thu, Oct 2, 2025 at 9:23 AM Kirk Herander via RE-wrenches <
> 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.
>>
>> [image: image.png]
>>
>> I've worked on this mo
>>
>> --
>>
>>
>> *Kirk Herander / **kirkh at vermont.solar <kirkh at vermont.solar>*
>>
>> *Owner|Principal, VT Solar, LLC*
>>
>> *Celebrating our 34st Anniversary 1991-2025!!*
>>
>> dba Vermont Solar Engineering
>>
>> 802.559.1225
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-- 


*Kirk Herander / **kirkh at vermont.solar <kirkh at vermont.solar>*

*Owner|Principal, VT Solar, LLC*

*Celebrating our 34st Anniversary 1991-2025!!*

dba Vermont Solar Engineering

802.559.1225
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