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Topic: Heliotrope HPV-22B DIP switches (Read 299 times) previous topic - next topic
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Heliotrope HPV-22B DIP switches
Does anyone know what the 4 DIP switches on the Heliotrope HPV-22B solar controller do?

Solar charging stopped working.  Mostly by luck, I found the problem was a blown 30 A ATM fuse in an inline fuse holder next to the positive terminal of one of the batteries.  The fuse is in the positive charge wire from the HPV-22B.  The fuse was not just blown, it was partly melted.  That's concerning, because the maximum solar charging current I've ever seen is 17 A.

Anyway, while troubleshooting I removed the HPV-22B from the wall and noticed the 4 DIP switches, and now I wonder what they do.

Re: Heliotrope HPV-22B DIP switches
Reply #1 –
Here's a scan of the manual from Chris Horst for that controller...

http://www.lazydazeowners.com/index.php?action=media;sa=item;in=3867#viewitem

Although I'm unable to open it with Adobe from this link, and I'm the one who scanned it and posted it.
I can open my local copy with Preview on the Mac, though.

Hmmm... well, it's downloading, but extremely slowly.

Chip
2000 Front Lounge
Re: Heliotrope HPV-22B DIP switches
Reply #2 –
Quote from: latljus  - 
The fuse was not just blown, it was partly melted.

There is no way that any current up to the 30A that would blow the fuse would melt the plastic. The heat to do that is the result of bad electrical contact at the fuseholder, and the fuse element probably melted open if it got that hot. Replace the fuseholder with a top-quality one rated for that size fuse, when you replace the fuse.

Steve
2004 FL
2013 Honda Fit
Re: Heliotrope HPV-22B DIP switches
Reply #3 –
The dip switches are used for setting the voltage at which the solar system concludes it has achieved a full charge. I once messed around with this to get a higher set point, having read online that one could get a "fuller" battery charge that way. That was true, but it came at the expense of greater battery water consumption. I went back to the setting used by the factory, which is something like 14.3 volts if I recall correctly. I don't have them now but some Googling at the time found the dip switch settings for various voltages. Personally I'd just leave them as set by LD.

Terry
2003 26.5'RB
Gardnerville, NV (now in Columbus, MT)
Terry
2003 26.5'RB
Gardnerville, NV
Re: Heliotrope HPV-22B DIP switches
Reply #4 –

"Replace the fuseholder with a top-quality one rated for that size fuse"

Right. Most inline fuseholders are cheap crap. I recommend this Blue Sea fuseholder.

As an Amazon Associate Lazy Daze Owners' Group earns from qualifying purchases.
Andy Baird
2021 Ford Ranger towing 2019 Airstream 19CB
Previously: 1985 LD Twin/King "Gertie"; 2003 LD Midbath "Skylark"
Re: Heliotrope HPV-22B DIP switches
Reply #5 –
I posted on this years ago after speaking with the manufacturer.  I think that post might be in the LD Companion. It applies to the HPV-22 models, not the later -22B version. Flipping one of the dip switches (I THINK it's #2) does the same thing as the panel switch on the later -B models, and switches from the shore power mode to the boondocking mode. The latter does increase battery water consumption, so I only use it when off the grid for a while. -- Jon
(Former) ‘06 TK “Albatross.” And (former) Vespa 250.   Alas, no more; both are gone.😕 Great memories remain! 😄
Re: Heliotrope HPV-22B DIP switches
Reply #6 –
Instead of using an inline fuse, I use marine circuit breakers that can be switched off.
A little more expensive and very convenient ..
https://flic.kr/p/BNptzY

Larry
Larry
2003 23.5' Front Lounge, since new.  Previously 1983 22' Front Lounge.
Tow vehicles  2020 Jeep Wrangler Rubicon, 2001 Jeep Cherokee
Photo Collection: Lazy Daze
Re: Heliotrope HPV-22B DIP switches
Reply #7 –
Fuses or circuit breakers used for auto speaker systems are relatively cheap and available in different amp ratings.
2004 26.5 MB
Enjoying retirement traveling, Rzr riding, photography, and of course the 2 grand girls!
Re: Heliotrope HPV-22B DIP switches
Reply #8 –
Thanks for all the info and advice!