[RE-wrenches] PAE series surge capacity/ power factor ?

[Sindelar Solar]

Amos,
I installed an MS-4448AE (not PAE) in late 2008 that wouldn't fire up a 
Buderus hydronic boiler. Ultimately it was replaced with a Lochinvar and 
that solved the issue. Magnum asked for the Buderus for testing, but 
that never happened, as once the problem was resolved by the heating 
contractor it was forgotten.

This issue was addressed on this list around 2/10/09, if you'd care to 
peruse the archives. To make it easier, I'll forward you a few of the 
emails, including a compendium of Wrenches responses, off list.

I'll also note that I have used a MS4024AE in my own home since 2010. 
It's been flawlessly reliable. However, every time the fridge comes on 
the lights flicker, especially one chandelier with 6 40W incandescent 
bulbs on a rotary dimmer. And one client with a MS4448PAE I installed in 
2011 complained that while the inverter worked well, anything in his 
home with a clock built in ran slow and had to be reset at least monthly.
Allan

On 1/10/2022 1:11 PM, Amos Post wrote:
> I also have a new (7 month old) PAE system with 2-4448 Inverters 
> (stacked) that we are having some strange issues with.  The most 
> troublesome issue is the new Rheem wall-hung LP instant water 
> heater/boiler is throwing an Error Code 12 which is supposedly a 
> “Flame Failure”.  It’s a brand new installation with new tanks and 
> lines and the gas guys have doubled checked everything.  We are now 
> wondering if it might be related to the power supply.  The other 
> indications that it could be related are flickering lights, a 12V 
> battery charger (AC plug in type) that won’t work off inverter power 
> (but will when plugged into the genny, and I’m seeing a little bit of 
> wondering in the Hz on my simple Exeltech volt meter.
> Magnum recommended a run capacitor on the boiler circuit.  I installed 
> that on Friday and still had the error code come up 4 times over the 
> weekend.
> Any thoughts?
> Best,
> Amos
>
>
>        Amos Post
> Integrity Energy
>   W 802.763.7023
>    C 802.291.2188
> ienergyVT.com <http://www.ienergyvt.com>
> Facebook <https://www.facebook.com/integrityenergyllp?ref=hl>
>
>> On Jan 9, 2022, at 7:26 PM, Ray <ray at solarray.com> wrote:
>>
>> Long runs of URD direct buried?  Just a nick into the metal can 
>> corrode the cable all the way through over time.  We use conduit for 
>> almost everything anymore.  The savings with URD doesn't pan out, 
>> when you have to abandon the line after 10 years.
>>
>> Ray Walters
>> Remote Solar
>> 303 505-8760
>> On 1/9/22 5:10 PM, Jerry Shafer wrote:
>>> I would look at connections first, lug that is not as tight as it ne 
>>> we do to be, a breaker failing, outlets that are either push in 
>>> wires or have loose connections. Eliminate what you can before 
>>> looking at the inverters
>>>
>>> On Sun, Jan 9, 2022, 11:36 AM Jeremy Rodriguez 
>>> <allsolarjeremy at msn.com> wrote:
>>>
>>>>     Hello
>>>>     we have a lot of PAE series magnum inverters out there.
>>>>     One client lately has been experiencing voltage drop and
>>>>     failure of PCBs in two of his household appliances. I know it’s
>>>>     common to have some dimming of the lights when a well pump or
>>>>     other large load kicks on, but has anyone ran across a solution
>>>>     to alleviate the problem or boost up the voltage / condition
>>>>     it, in any way ?
>>>>     I’m not sure if this just happens with low battery voltage, or
>>>>     always
>>>>     The inverter is located ~ 300 ft from the main electrical panel
>>>>     with #2/2/2/4 URD feeders to an outdoor disco, then 8 AWG
>>>>     copper to the mains panel.
>>>>     4448 PAE with one string of 6CS21P Batteries.
>>>     Jeremy Rodriguez
>>>     Solar Installation / Design Expert
>>>     All Solar, Inc.
>>>     1453 M St
>>>     Penrose Colorado
>>>
-- 

*Allan Sindelar*
allan at sindelarsolar.com <mailto:allan at sindelarsolar.com>
(no longer) NABCEP Certified PV Installation Professional (as I let it 
expire after 18+ years)
New Mexico EE98J Journeyman Electrician
Founder (Retired), Positive Energy, Inc.
*505 780-2738 cell*
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