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Old 04-21-2018, 08:09 AM   #21
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Maine Sail has posted dozens of detailed comments and instructions for how they should be mounted and calibrated for a given setup to protect against overheating.

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Any way you can post a link to that info?
Thanks in advance.
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Old 04-21-2018, 12:04 PM   #22
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Any way you can post a link to that info?

Thanks in advance.


Here is one.
https://marinehowto.com/programming-...age-regulator/
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Old 04-21-2018, 01:41 PM   #23
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Thank you. Looks like I did some things right and a few wrong but it's working for me.
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Old 04-21-2018, 02:02 PM   #24
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Here's some more

https://www.google.com/search?q=main...regulator+heat
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Old 04-21-2018, 02:16 PM   #25
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So why cannot the Balmar regulators be placed in an ER? According to the information link noted by D Hays, no problem with 140F and the newer designs OK at 194F. Maybe in Death Valley with a dry stack heating up an ER will you see temperatures that exceed the above referenced numbers.

The issues noted with Balmar may well be ER ventilation problems.
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Old 04-21-2018, 03:57 PM   #26
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So why cannot the Balmar regulators be placed in an ER? According to the information link noted by D Hays, no problem with 140F and the newer designs OK at 194F. Maybe in Death Valley with a dry stack heating up an ER will you see temperatures that exceed the above referenced numbers.

The issues noted with Balmar may well be ER ventilation problems.
Mine is in the ER but I am a single engine with lots of room around the engine. I've taken temp readings a few times and I never got a reading above 120F (usually lower), so I'm good with ventilation.
I also have the belt manager set at 75% on a 70 amp Balmar alternator
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Old 04-21-2018, 04:14 PM   #27
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That VR with the cracked epoxy coating scares me. Many manufacturers learned the hard way with surface mount components buried in epoxy. The epoxy is strong enough to defeat the solder connections on the small parts after many thermal cycles. I hope Balmar has done thermal shock cycles.

https://www.aitechnology.com/product.../#toggle-id-11
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Old 04-21-2018, 09:51 PM   #28
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Thank you for posting that link. I do peruse CMS site but missed that.
When I get asked by friends I may be able to help them a bit more with that write up.

Thank you CMS for a great write up.

He, CMS, notes in the article that Balmar has started using a higher temp epoxy.

I suspect a LOT depends upon exactly where the unit is mounted. To near an exhaust manifold or other hot spot with no shield could do it. ALso radiated heat could cause the unit to heat more than would be expected from just ambient E.R. heat.

I suspect that a loose cover/shield over it, not an enclosure, may help. Open top and bottom.

I don't poke around other peoples E.R. the way I used to but I have seen some equipment mounted poorly and too close to the engine with no shield at all. Not just regulators.
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