Electrical gremlins, charging set up, and questions

I got my fuse block from someone re-doing their GMC who had it left over. A look on eBay shows them available fro 20 bux to several hundred. I'll
probably put this one in the 26' coach when a get some time. It will be in an enclosure:

http://www.ebay.com/itm/RV-Fuse-Board-85-Amp-12-V-DC-Mobile-and-Solar-Power-Distribution-Panel/271517232037?_trksid=p2045573.c100507.m3226&_trkparms=aid%3D555017%26algo%3DPL.CASSINI%26ao%3D1%26asc%3D38530%26meid%3D99004dc170cf47e684c2d213b19993c7%26pid%3D100507%26rk%3D1%26rkt%3D1%26

--johnny

--
'76 23' transmode Norris upfit, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.

"Sometimes I wonder what tomorrow's gonna bring when I think about my dirty life and times" --Warren Zevon
 
Since MOST of the wires for the Digipanel are color coded, I MAY use the small "bullet" type crimp connectors to split/join the wires before installing the panel. You could alternatively use Anderson PowerPole connectors. These non-polarized and insulated connectors are available in either 8 or 10 different colors and can even be joined together physically to make a pair of customized mating plugs that cannot be put together incorrectly! Now that I think of it, I believe this is the route I will take.

Lots of sources for these, but one I know of is www.powerwerx.comhttp://www.powerwerx.com

You would want to use the 30 Amp housings and the 15 Amp "pins" for the small size of the Digipanel wires.

The special crimping tool is the most satisfactory means to make the connections, but is not absolutely necessary.

I plan to make the 2017 Shawnee Convention/Rally even if I can't get my coach running by then, and could easily bring my specialized tools to do these if there is a desire for me to do so.

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ Since 30 November '53 ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ Member GMCMI and Classics ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ~ TZE166V101966 ~ ~ ~ ~
~ ~ ~ '76 ex-Palm Beach ~ ~ ~
~~ k2gkk + hotmail dot com ~~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
______________
|[ ]~~~[][ ][]\
"--OO--[]---O-"

________________________________
From: Gmclist on behalf of Rob Mueller
Sent: Tuesday, November 8, 2016 14:46
To: gmclist
Subject: Re: [GMCnet] Electrical gremlins, charging set up, and questions

Jim,

I, for one, would be willing to pay more for the Digipanel IF the all the inputs were connected with connectors instead of being
hard wired to the unit.

Regards,
Rob M.
The Pedantic Mechanic
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808

-----Original Message-----
From: Gmclist [mailto:gmclist-bounces] On Behalf Of Jim Kanomata
Sent: Wednesday, November 09, 2016 7:19 AM
To: gmclist
Subject: Re: [GMCnet] Electrical gremlins, charging set up, and questions

We are acquiring Digi Devices and should be in production in February.
We have a very qualified Engineer / Technician that will be heading that department.
This is a very reliable unit with audible warning and shows all the readings a one time, so one doesn't need to press buttons,
or glance around. This devise has saved many engines.

Jim Kanomata
Applied/GMC, Fremont, CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
Mac,

I thought of the same idea, however, you could run into a problem with the devices that read temperature. We might have to use one
of these depending on the sensor material:

Tiny URL: https://tinyurl.com/obx6fkf

Full URL.

https://www.google.com.au/search?sa=X&rlz=1C1PRFC_enAU683US686&espvd=2&biw=1137&bih=570&tbm=shop&q=thermocouple+connector&source=uni
v&tbo=u&ved=0ahUKEwje2M7CrJrQAhVJxrwKHV1nDngQ1TUIOSgH&dpr=0.9

We used a lot of copper constantan thermocouples to monitor temps on test equipment for Project Apollo. Having said that we were
interested in EXACT readings and on a GMC that isn't necessary.

Regards,
Rob M.
The Pedantic Mechanic
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808

-----Original Message-----
From: D C _Mac_ Macdonald

Since MOST of the wires for the Digipanel are color coded, I MAY use the small "bullet" type crimp connectors to split/join the
wires before installing the panel. You could alternatively use Anderson PowerPole connectors. These non-polarized and insulated
connectors are available in either 8 or 10 different colors and can even be joined together physically to make a pair of customized
mating plugs that cannot be put together incorrectly! Now that I think of it, I believe this is the route I will take.

Lots of sources for these, but one I know of is www.powerwerx.comhttp://www.powerwerx.com

You would want to use the 30 Amp housings and the 15 Amp "pins" for the small size of the Digipanel wires.

The special crimping tool is the most satisfactory means to make the connections, but is not absolutely necessary.

I plan to make the 2017 Shawnee Convention/Rally even if I can't get my coach running by then, and could easily bring my specialized
tools to do these if there is a desire for me to do so.

~~ ~ D C "Mac" Macdonald ~ ~~
 
I admit that I have not thoroughly investigated the theory of operation of all functions of the DigiPanel, but thought the unit simply converted voltages or resistances to operate the detection.

Mac in OKC

________________________________
From: Gmclist on behalf of Rob Mueller
Sent: Tuesday, November 8, 2016 17:55
To: gmclist
Subject: Re: [GMCnet] Electrical gremlins, charging set up, and questions

Mac,

I thought of the same idea, however, you could run into a problem with the devices that read temperature. We might have to use one
of these depending on the sensor material:

Tiny URL: https://tinyurl.com/obx6fkf

Full URL.

https://www.google.com.au/search?sa=X&rlz=1C1PRFC_enAU683US686&espvd=2&biw=1137&bih=570&tbm=shop&q=thermocouple+connector&source=uni
v&tbo=u&ved=0ahUKEwje2M7CrJrQAhVJxrwKHV1nDngQ1TUIOSgH&dpr=0.9

We used a lot of copper constantan thermocouples to monitor temps on test equipment for Project Apollo. Having said that we were
interested in EXACT readings and on a GMC that isn't necessary.

Regards,
Rob M.
The Pedantic Mechanic
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808

-----Original Message-----
From: D C _Mac_ Macdonald

Since MOST of the wires for the Digipanel are color coded, I MAY use the small "bullet" type crimp connectors to split/join the
wires before installing the panel. You could alternatively use Anderson PowerPole connectors. These non-polarized and insulated
connectors are available in either 8 or 10 different colors and can even be joined together physically to make a pair of customized
mating plugs that cannot be put together incorrectly! Now that I think of it, I believe this is the route I will take.

Lots of sources for these, but one I know of is www.powerwerx.comhttp://www.powerwerx.com

Anderson Powerpole, DC Power, Wire & Cable, Two-Way Radios | Powerwerxhttp://www.powerwerx.com/
www.powerwerx.com
Powerwerx offers Anderson Powerpole Connectors, Power Supplies, Battery Chargers, Wire & Cable, Mobile Timers much more. Shop online today!

You would want to use the 30 Amp housings and the 15 Amp "pins" for the small size of the Digipanel wires.

The special crimping tool is the most satisfactory means to make the connections, but is not absolutely necessary.

I plan to make the 2017 Shawnee Convention/Rally even if I can't get my coach running by then, and could easily bring my specialized
tools to do these if there is a desire for me to do so.

~~ ~ D C "Mac" Macdonald ~ ~~

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I'd ask before I spliced the temp sensor wires. The pressure sender wire can be spliced wothout worry, since it sees 90 Ohms to zero, wire resistance
isn't gonna matter till you get into the hundreds of feet. The temp sensing thermistors may or may not be sensitive enough to worry over, ask first.
They can be recalibrated if there's a problem with more wire.

--johnny
--
'76 23' transmode Norris upfit, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.

"Sometimes I wonder what tomorrow's gonna bring when I think about my dirty life and times" --Warren Zevon
 
Thanks Johnny! I'm in the process of gathering supplies for the re wire.

I do have a question though....

I'm the schematics, there are wires that come off in some instances that show an arrow and a single non boxed letter. Not the boxed double letters
designated in the key.

For example, there is a 12 ga red wire coming off the 10 ga red wire going to the isolator from the generator.
This wire goes to X.

There is also a 16 ga org dbl blk wire coming off the front switch, going to R.

What am I missing?
--
1976 Palm Beach
Austin, TX
 
> Thanks Johnny! I'm in the process of gathering supplies for the re wire.
> I do have a question though....
>
> I'm the schematics, there are wires that come off in some instances that show an arrow and a single non boxed letter. Not the boxed double
> letters designated in the key.
>
> For example, there is a 12 ga red wire coming off the 10 ga red wire going to the isolator from the generator.
> This wire goes to X.
>
> There is also a 16 ga org dbl blk wire coming off the front switch, going to R.
>
> What am I missing?
On the schematic for mine, there is an arrow pointing down to an X and lower down the drawing there is an arrow pointing up to an X. I am sure that
just means they didn't clutter up the drawing with a line all the way from one to the other.

If yours doesn't have another X or another R, your drawing must be incomplete.
--
73 23' Sequoia 4 Sale
73 23' CanyonLands Parts Unit 4 Sale
Upper Alabama
"Highest price does not guarantee highest quality."
 
> > Thanks Johnny! I'm in the process of gathering supplies for the re wire.
> > I do have a question though....
> >
> > I'm the schematics, there are wires that come off in some instances that show an arrow and a single non boxed letter. Not the boxed double
> > letters designated in the key.
> >
> > For example, there is a 12 ga red wire coming off the 10 ga red wire going to the isolator from the generator.
> > This wire goes to X.
> >
> > There is also a 16 ga org dbl blk wire coming off the front switch, going to R.
> >
> > What am I missing?
> On the schematic for mine, there is an arrow pointing down to an X and lower down the drawing there is an arrow pointing up to an X. I am sure
> that just means they didn't clutter up the drawing with a line all the way from one to the other.
>
> If yours doesn't have another X or another R, your drawing must be incomplete.
>
> And the other X is the power wire for the dash heat/AC blower high speed.

Of course. Thank you!


--
1976 Palm Beach
Austin, TX
 
Chris commented... "Batteries should never be hooked up inside the passenger compartment as they off gas hydrogen while charging. One word?
Hindenburg."

While I don't disagree, I wanted to note that in my '75 Avion the house battery stock location is in a metal box with a foam sealed lid, that is
vented by an inch and a half diameter tube that exits less than a foot away behind the license plate.

Question: Is this stock arrangement dangerous?

Thank you!
Dave
--
David del Rio - 75 Avion - Raymond, CA
 
NO. That is not hooked up inside the passenger compartment. It is sealed and vented to the outside.

Emery Stora

>
> Chris commented... "Batteries should never be hooked up inside the passenger compartment as they off gas hydrogen while charging. One word?
> Hindenburg."
>
> While I don't disagree, I wanted to note that in my '75 Avion the house battery stock location is in a metal box with a foam sealed lid, that is
> vented by an inch and a half diameter tube that exits less than a foot away behind the license plate.
>
> Question: Is this stock arrangement dangerous?
>
> Thank you!
> Dave
> --
> David del Rio - 75 Avion - Raymond, CA
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
> Chris commented... "Batteries should never be hooked up inside the passenger compartment as they off gas hydrogen while charging. One word?
> Hindenburg."
>
> While I don't disagree, I wanted to note that in my '75 Avion the house battery stock location is in a metal box with a foam sealed lid, that is
> vented by an inch and a half diameter tube that exits less than a foot away behind the license plate.
>
> Question: Is this stock arrangement dangerous?
>
> Thank you!
> Dave

Dave,

No

Discussion.
While batteries don't actually vent that much hydrogen, but they do vent a near perfect mixture of hydrogen and oxygen. So the real idea is to vent
it out to where it is less likely to find a source of ignition. With no place for it to accumulate and no handy ignition source, what you have is
about as safe as you can be.

Matt
--
Matt & Mary Colie - Members GMCMI, GMCGL, GMCES
'73 Glacier 23 - Still Loving OE Rear Drum Brake with Applied Control Arms
Now with both true Keyless and remote entry
SE Michigan - Twixt A2 and Detroit
 
Chris commented... "Batteries should never be hooked up inside the passenger compartment as they off gas hydrogen while charging. One word?
Hindenburg."

While I don't disagree, I wanted to note that in my '75 Avion the house battery stock location is in a metal box with a foam sealed lid, that is
vented by an inch and a half diameter tube that exits less than a foot away behind the license plate.

Question: Is this stock arrangement dangerous?

Thank you!
Dave
--
David del Rio - 75 Avion - Raymond, CA
=================
 
It would appear that considerably more development is needed before I would EVER put Lithium Ion (Li Ion) batteries in MY coach. I have no desire for a "burn to the lug nuts" happening!

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ Since 30 November '53 ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ Member GMCMI and Classics ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ~ TZE166V101966 ~ ~ ~ ~
~ ~ ~ '76 ex-Palm Beach ~ ~ ~
~~ k2gkk + hotmail dot com ~~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
______________
|[ ]~~~[][ ][]\
"--OO--[]---O-"

________________________________
From: Gmclist on behalf of Gerald Work
Sent: Thursday, November 10, 2016 20:28
To: GMC Motor Home Post
Subject: [GMCnet] Electrical gremlins, charging set up, and questions

Also, keep in mind that there are different types and chemistries for batteries that effect where and how they can be deployed.

AGMs are quite different in off gassing behavior than wet cell lead acid batteries, for example. And, your house is already full of LiIon batteries which soon will reach the price and ampacity to be good coach interior batteries.

Jerry
Jerry Work
The Dovetail Joint
Fine furniture designed and hand crafted in the 1907 former Masonic Temple building in historic Kerby, OR

glwork
http://jerrywork.com
 
> It would appear that considerably more development is needed before I would EVER put Lithium Ion (Li Ion) batteries in MY coach. I have no desire
> for a "burn to the lug nuts" happening!
>
>
> ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
> ~~ ~ D C "Mac" Macdonald ~ ~~
> ~ ~ Amateur Radio - K2GKK ~ ~
> ~ ~ Since 30 November '53 ~ ~
> ~ ~ USAF and FAA, Retired ~ ~
> ~ Member GMCMI and Classics ~
> ~ ~ ~ Oklahoma City, OK ~ ~ ~
> ~~ ~ ~ "The Money Pit" ~ ~ ~~
> ~ ~ ~ ~ TZE166V101966 ~ ~ ~ ~
> ~ ~ ~ '76 ex-Palm Beach ~ ~ ~
> ~~ k2gkk + hotmail dot com ~~
> ~ www.gmcmhphotos.com/okclb ~
> ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
> ______________
> |[ ]~~~[][ ][]\
> "--OO--[]---O-"
It depends on the battery and the charger. Lots of hoverboards and laptops and phones have gone up in smoke. But you never hear about a Prius or a
Tesla burning down. Its all about quality control, and the third world countries that get some of the battery pack contracts haven't mastered it yet.
--
73 23' Sequoia 4 Sale
73 23' CanyonLands Parts Unit 4 Sale
Upper Alabama
"Highest price does not guarantee highest quality."
 
You need to explain what you plan to turn off and on with that switch before we answer.
If you connect to one side of the solenoid you will get house battery power.
If you connect to the other side of the solenoid you with get engine battery power.

BOTH OF THESE CONNECTIONS ARE NOT FUSED.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
 
Sorry, I wasn't clear. Thie pic is a boost switch. If I had a new boost switch that I was installing, how would I know which posts to use for which
wires?

It has four posts. What designates which wires go where?
--
1976 Palm Beach
Austin, TX
 
>> It would appear that considerably more development is needed before I would EVER put Lithium Ion (Li Ion) batteries in MY coach. I have no desire
>> for a "burn to the lug nuts" happening!
>>
> It depends on the battery and the charger. Lots of hoverboards and laptops and phones have gone up in smoke. But you never hear about a Prius or a
> Tesla burning down. Its all about quality control, and the third world countries that get some of the battery pack contracts haven't mastered it yet.

afaik, the LiFePO4 based Lithium batteries do not have the same
combustion issues as the Lithium batteries that are in mobile phones.


--
Best regards

Peer Oliver Schmidt
PGP Key ID: 0x83E1C2EA

'76a Eleganza II, VA
 
The battery business did the misunderstanding to themselves:

Lithium Ion
Lithium Iron Phosphate (the additional spaces were quite intentional)

Here’s a fairly accurate comparison:

Face-Off: Lithium Ion vs Lithium Iron Battery http://www.brighthubengineering.com/power-generation-distribution/123906-comparison-of-lithium-ion-to-lithium-iron-battery/

Dolph

DE N8JPC

Wheeling, West Virginia

1977 26’ ex-PalmBeach
1-Ton, Sullybilt Bags, Reaction Arms, 3.70 LSD, Manny Transmission, EV-6010

“The Aluminum and Fiberglass Mistress"

>
>

>>> It would appear that considerably more development is needed before I would EVER put Lithium Ion (Li Ion) batteries in MY coach. I have no desire
>>> for a "burn to the lug nuts" happening!
>>>
>> It depends on the battery and the charger. Lots of hoverboards and laptops and phones have gone up in smoke. But you never hear about a Prius or a
>> Tesla burning down. Its all about quality control, and the third world countries that get some of the battery pack contracts haven't mastered it yet.
>
> afaik, the LiFePO4 based Lithium batteries do not have the same
> combustion issues as the Lithium batteries that are in mobile phones.
>
>
> --
> Best regards
>
> Peer Oliver Schmidt
> PGP Key ID: 0x83E1C2EA
>
> '76a Eleganza II, VA
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
OK, I think I understand the question now.

The item you are looking at we call a boost solenoid or boost relay.

First is the small terminals. One goes to the thin wire going to the boost switch on the dash and one goes to ground. The polarity is not important,
so just wire one to the boost switch on the dash and the other one to engine battery ground. The aluminum plate where the relay/solenoid is mounted
is connected to engine battery ground and that is where GM wired their's.

On the big terminals, which side you use there is also unimportant as long as you get the correct together wires on each side. (The three red on the
right side of the diagram on one side, and the other two on the left side of the diagram on the other terminal.

One side is engine battery circuits and the other side is house battery circuits. They can not be mixed from side to side. I forget at the moment
which side Gm used for which and my coach is not here for me to look at. It will not hurt which side you use for them as long as wires for the two
sides are not mixed.

Clear as mud. right?
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
 
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