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

[Foxfire Energy]

Not sure if I might be talking apples and pickles here, but I seem to recall faking out early Generacs to two wire start by setting up a DPDT relay in parallel with the onboard rocker switch.
db
________________________________
From: RE-wrenches <re-wrenches-bounces at lists.re-wrenches.org> on behalf of Kirk Herander via RE-wrenches <re-wrenches at lists.re-wrenches.org>
Sent: Thursday, October 2, 2025 12:22 PM
To: re-wrenches at lists.re-wrenches.org <re-wrenches at lists.re-wrenches.org>
Cc: Kirk Herander <kirkh at vermont.solar>
Subject: [RE-wrenches] need to set up an older generac remote start circuit

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.png]

I've worked on this mo

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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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