The Outback is not a perfect Sinewave. It still has tiny steps in the
wave, and when electronics have a problem, its usually with the wave
form as it crosses zero voltage . Instead of being instantaneous, it
has a few milliseconds of time the wave is at the zero crossing, which
can drive some electronics nuts. I don't understand the issue beyond
that, but apparently the electronics use the zero crossing for timers
and synchronizing, and they're looking for an instant "click", not a smear.
Do the heat pumps work with the generator? Even though generators can
have more harmonic distortion, they do usually have a clean zero crossing.
If this is the case, I'm afraid I don't have a cure. We used to use
capacitors, but Dan from Exeltech just poo pooed that fix in another
recent thread, so I don't have any other tricks up my sleeve.
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760
On 10/21/2014 8:54 AM, d...@foxfire-energy.com wrote:
Anyone else had issues with Mitsubishi Mini Split heat pumps fighting
with Outback VFX off grid inverters? Everything is brand new. Outback
VFX7248, three separate heat pumps. The heat pumps shut down reporting
multiple / confusing input commands. The heat pump guys want to blame
the power system. I'm thinking bad Sushi. Thanks db
Dan Brown
Foxfire Energy Corp.
Renewable Energy Systems
(802)-483-2564
www.Foxfire-Energy.com <http://www.Foxfire-Energy.com>
NABCEP #092907-44
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