[RE-wrenches] sol ark AGS question

Fri Sep 15 14:41:00 PDT 2023

Chris,
Just so that I understand correctly, are you saying that new firmware
allows for generator cool down?

On Fri, Sep 15, 2023 at 2:33 PM Jason Szumlanski via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> I saw that setting. I didn't have a chance to look it up today, but I'm
> going back to the site tomorrow. I'm going to play with that and try to get
> rid of the ancillary equipment that is no longer necessary. Thanks for the
> tip.
>
> On Fri, Sep 15, 2023, 5:26 PM Chris Sparadeo <sparadeo.chris at gmail.com>
> wrote:
>
>> In an off-grid scenario I would suggest utilizing the grid connect timer
>> as a Gen warm up. I typically set this qualification time to 30 or 60
>> seconds. Sol Ark fixed the problem with dropping the 2 wire start under
>> full load, so if this is an issue for you, I would update the firmware.
>>
>> On Fri, Sep 15, 2023 at 4:56 PM Jason Szumlanski via RE-wrenches <
>> re-wrenches at lists.re-wrenches.org> wrote:
>>
>>> I just replaced two Sunny Islands and one Sunny Boy that I did not
>>> install with a single Sol-Ark 15k today. The generator installer (not me)
>>> had already installed a custom but simple time delay relay. I didn't get
>>> into the logic of it, but from what I understand the generator already had
>>> a cool-down period when remote start signal is lost, but no warm up delay.
>>>
>>> Major deficiency? I think that is actually pretty accurate and Sol-Ark
>>> should fix it, but it isn't too hard to take care of it another way.
>>>
>>> I wonder if this has something with the distinction of accepting
>>> generator input on the grid input as well. You would not want a grid delay
>>> if it were a utility. Still, they should be able to build in that logic I
>>> would think.
>>>
>>> Jason Szumlanski
>>> Principal Solar Designer | Florida Solar Design Group
>>> NABCEP Certified Solar Professional (PVIP)
>>> Florida State Certified Solar Contractor CVC56956
>>>
>>>
>>> On Fri, Sep 15, 2023 at 8:28 AM Michael Morningstar via RE-wrenches <
>>> re-wrenches at lists.re-wrenches.org> wrote:
>>>
>>>> We learned of this major deficiency after an eight unit install. No
>>>> cool down is disastrous to modern diesels. Our work around was installing a
>>>> 400amp contactor and macromatic programmable relay.
>>>>
>>>> On Thu, Sep 14, 2023 at 10:05 PM Jerry Shafer via RE-wrenches <
>>>> re-wrenches at lists.re-wrenches.org> wrote:
>>>>
>>>>> Jay, wrenches
>>>>> ASCO makes multiple ATS controls that can manage delays latching up
>>>>> and for cool down. Most of the gensets have are  programmed cool down after
>>>>> relay opens so its not an issue. Generally on start up the genny connects
>>>>> as soon as it's voltage and freq are within range.
>>>>> fun times
>>>>>
>>>>>
>>>>>
>>>>> On Thu, Sep 14, 2023, 2:26 PM jay via RE-wrenches <
>>>>> re-wrenches at lists.re-wrenches.org> wrote:
>>>>>
>>>>>> Hi All,
>>>>>>
>>>>>> I have a client with a sol ark and it doesn’t have warm up or cool
>>>>>> down, kind of amazing companies are going backwards in their tech.
>>>>>>
>>>>>>
>>>>>> Has anyone come up with external fix for this?
>>>>>>
>>>>>> I am guessing the internal relay on the sol ark switches closed when
>>>>>> it sees the correct volts/hz and opens the sol ark relay when it sends the
>>>>>> off signal.
>>>>>>
>>>>>> If thats correct I  can pretty easily use a delay relay on the off
>>>>>> cycle assuming the on signal has a time window to allow for this delay in
>>>>>> sending power to the inverter.
>>>>>>
>>>>>>  The on delay I don’t see anyway unless I use a contactor with on
>>>>>> delay relay.
>>>>>>
>>>>>> Maybe there is a off the shelf generator transfer switch that has
>>>>>> this built in?
>>>>>>
>>>>>> Thanks in advance
>>>>>>
>>>>>> Jay
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
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>>>>
>>>> --
>>>>
>>>> Michael Morningstar
>>>>
>>>>
>>>> Morningstar Electric
>>>>
>>>> PO Box 1494
>>>>
>>>> Mount Shasta, CA 96067
>>>>
>>>> 530-921-0560
>>>>
>>>> mjmorningstar at gmail.com
>>>>
>>>>
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-- 

Michael Morningstar

Morningstar Electric

PO Box 1494

Mount Shasta, CA 96067

530-921-0560

mjmorningstar at gmail.com
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