I dont' know if you can power just the part this is giving problems
and not the big load which is pumping?
but had a similar problem with an SW trace.
I installed a Exeltech inverter to power that load specifically and
ever since has worked fine.
The guys at Exeltech make a wave form that everything likes.
Just a thought,
jay
peltz power
On Feb 11, 2009, at 6:52 AM, Howie Michaelson wrote:
I installed an off-grid system with identical symptoms:
OB VFX 3648 dual stack
Buderus GB142-24
Kohler 12 kW propane genny
The boiler runs fine on the inverter power, but will occasionally
error
out (6A) and shut down while the generator is running (usually after
it
has been on for hours). The plumber installed an APC uninterruptable
power supply/surge suppressor (not sure of the model) before the
boiler,
but when running on the internal inverter, the symptoms seemed to get
worse. When running on just the surge suppressor portion, the
symptoms
were the same as if the APC wasn't in-line. We've checked the
grounding
at the genny, made sure the neutral was isolated except for the main
panel, still the same problem. Seems this is a Buderus issue (or at
least
not an inverter one) - see:
http://www.buderus.net/Support/TechnicalInfoForums/tabid/132/forumid/15/threadid/4334/scope/posts/Default.aspx
I haven't been able to make the boiler run reliably when the genny
is on,
which is a problem in our climate, when the client goes away in the
winter...
Howie
--
Howie Michaelson
NABCEP Certified Solar PV Installer™
Sun Catcher, LLC
Renewable Energy Systems Sales and Service
VT Solar & Wind Incentive Program Partner
http://www.SunCatcherVT.com
(cell) 802-272-0004
(home) 802-439-6096
On Wed, February 11, 2009 7:47 am, Darryl Thayer wrote:
Some of the hot surface ignitors I have seen draw a lot of current,
in the
order of amps. I would expect the inverter to drop out if it were
overloaded however. Also does the magnum drop voltage at very low
loads?
Where the furnace controls can not function due to low voltage or
poor
wave shape.
Darryl
This may be true about high frequency switching interfering
with something, but I believe the problem with this ignitor
is that it is a very poor design. Judging by what I read on
their company forum, it doesn't look like they have a
clue about
this problem. Maybe you can go inside the Buderus and
filter something there or maybe you can fine another product
to try ?
boB
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