Date   

Re: randomly occurring increases of engine temperature

David Vogel
 

Hi Jose,

I would not think that the airflow in the engine room, fresh air in via the blower or exhaust fan, would significantly alter the engine operating temp, either as shown at the engine instruments (at the helm), or direct infrared observation of the oil temp (oil filter). FWIW, I see rock steady 80ºC at the helm, with the exception of periodic running at high-power (>3,200RPM, Yanmar 4JH3-HTE) after extended periods of running at low revs, in order to burn off any carbon build-up on the turbo (another lesson learnt). In the extended high-RPM scenario, I do see a trending rise of about 5ºC.

As Bill indicates in his very comprehensive answer, if you are seeing an intermittent increase in the engine OPR temp then Bill provides a good path to follow in troubleshooting a problem before it becomes more serious.

As an aside, I would heartily recommend any folks planning to proceed west from the Americas, to get such issues well and truly sorted before they even get to the Central America (e.g. Panama) as, once to you get there, even in pre-COVID times, the amount of time and energy to resolve even simple things can be astounding when compared to places where you have ready direct access to necessary parts and expertise.

Best,

David
SM#396, Perigee
Bay of Islands, Lau Group
Fiji



From: <main@AmelYachtOwners.groups.io> on behalf of "Jose Venegas via groups.io" <josegvenegas=icloud.com@groups.io>
Reply-To: <main@AmelYachtOwners.groups.io>
Date: Friday, 3 September 2021 at 6:40 am
To: <main@AmelYachtOwners.groups.io>
Subject: Re: [AmelYachtOwners] Engine Room Exhaust Fan / Blower - lessons learnt #lessons

David, you may have something here.  I have noticed randomly occurring increases of engine temperature up to 220F when running the engine above 2000 RPM.  However the temperature does not seem to drop after opening the engine-room  door  and have not been able to measure any temp in the engine higher the 176F with an infrared thermometer.  
Any thoughts?
Jose Venegas
Ipanema SM 278 
currently in Shelterbay PANAMA


Re: 24V+ Isolated Ground Leak

Alan Leslie
 
Edited

Hi Mark,

Yes, it would seem that you have a very slight leak between the -ve and the bonding.

When you say that the MASSE -  light doesn't come on, have you observed it in the dead of night with no ambient light?

I can give you an illustration of what I had once.
I noticed a faint glimmer, only observable at night on the MASSE -. Couldn't see it in the daytime.
By a process of elimination I found the cause.
It was the AC power pack used to power the laptop. 
Because at that time I still had the Calpeda Air con pump, the bonding was also connected to the AC ground through that pump - standard Amel.
The AC/DC power pack for the laptop must have had a high resistance internal connection from DC-ve to AC ground, because when I unplugged the AC connection the MASSE - light went off, similarly if I disconnected all the USB connections I had between the laptop and the nav instruments, the MASSE - light went off.
BUT I could only see the MASSE - light in the dark....daytime it looked fine.

In a previous boat I had a similar issue with a negative wire that was wet....no real connection to anything, just damp.

Something like that could be the cause of your circumstance.

In Paul's case, it seems clear to me that it's something on the powered side of the nav instruments cct breaker that is causing his issue.

Cheers
Alan
Elyse SM437


Re: LLC or Corporate ownership of vessel

Danny and Yvonne SIMMS
 

Hi Teun, you are right when you say they will "deny coverage under the premises that I didn't fully disclose on my application". That is exactly what they will do. Don't hide things from them. That warning is in their documentation and quite justifiably they will apply it

Kind Regards

Danny

SM 299

Ocean Pearl


On 09 September 2021 at 09:44 Teun BAAS <teun@...> wrote:

It is not necessarily that simple. Until last year I had my boat owned by an UK corporation which was owned by a HONG KONG Holding which ultimately I own; she was Dutch registered; I hold Dutch passport; but also USA as well as CHINA legal residency. Still several insurance companies were asking about ultimate beneficiary of these corporations.

In 1 case I was asked where I file my taxes which is both in USA as well as the NETHERLANDS. As soon as they realize the USA connection they refused my application.

Also - it is very possible to avoid or down play my USA connection (f.e.: by using the address of my overseas companies) but I really don't want to run the risk once I have a substantial claim that they investigate and deny coverage under the premises that I didn't fully disclose on my application.


T

.


-------- Original message --------
From: "Mark Erdos via groups.io" <mcerdos@...>
Date: 9/7/21 19:46 (GMT-08:00)
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] LLC or Corporate ownership of vessel

On the contrary, having the vessel owned by an LLC has many advantages. First, there is the obvious tax advantage. Second, if you are American and you flag and own your vessel outside of the USA, you can obtain insurance where other US flagged vessels can’t. When it comes time to sell the vessel, you can sell the entire corporation to the new owner. This way the new owner gets the insurance, licenses etc. I would never buy a vessel this way, but it is an option. Perhaps the best advantage is the protection of your personal assets should be find yourself liable in an accident or spill of some type. Keep in mind laws change from country to country but all will recognize limited liability.

 

One of the other reasons we put our Amel into a corporation was survivor benefits. As share holders, we both have ownership. A friend had a lot of trouble when her husband died in a foreign port. She found out the hard way how every country has different laws. The vessel was in his name and they refused to immediately acknowledge their US legal will. The vessel was seized. She had to hire a local lawyer and eventually got control of the vessel so she could sell it.

 

All port authorities understand corporate owned vessels. If a single super yacht has ever entered their country, then they understand. Every single large yacht is corporate owned. We are BVI owned and flagged and have never had issue with entering.  

 

The cost can vary from country to country. There are big differences. Grand Cayman is one of the most expensive. Some countries require tonnage surveys and vessel surveys. You need to watch for annual fees and filing requirements for the corporation. Also, countries require registration renewals at various times. Some are annually which is a real pain if you plan to sail the globe.

 

If you have specific questions feel free to private email me.

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Tahiti, French Polynesia

www.creampuff.us

 

From: main@AmelYachtOwners.groups.io [mailto:main@AmelYachtOwners.groups.io] On Behalf Of Ben and Gayle Super Maramu #347 via groups.io
Sent: Tuesday, September 7, 2021 10:39 AM
To: main@AmelYachtOwners.groups.io
Subject: [AmelYachtOwners] LLC or Corporate ownership of vessel

 


I’m thinking about putting a new boat into an LLC or corporation  legal entity.  Has anyone done such and run into issues in a  foreign port?  Do most customs and port authorities understand these documentations?  I would think so but maybe not in smaller nations 

 



 


 


Re: VICTRON MPPT 75/15

Gregory Shea
 

Bonjour Alain, 
Mine are 12 volts.

Greg Shea


On Sep 8, 2021, at 12:26 PM, Alain Durante <info@...> wrote:



Bonjour Greg,

 

Thank you for your reply.

 

Each of your panels are 12V or 24V?

 

Cordialement,

 

Alain Durante

 

Amel 54/21 Meige

 

 

De : main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> De la part de Gregory Shea via groups.io
Envoyé : mercredi 8 septembre 2021 15:15
À : main@amelyachtowners.groups.io
Objet : Re: [AmelYachtOwners] VICTRON MPPT 75/15

 

Bonjour Alain, 

I have your problem because a cheap Chinese panel in my solar array cannot reach minimum voltage for the MPPT to turn on each morning. The MPPT “sees” the minimum voltage in a parallel system so, if one panel is under performing, the MPPT won’t turn on, even if all the other panels are above minimum. You can troubleshoot it by checking the voltage output of each of the panels connected to that MPPT, after you know you have enough solar power in the morning because the second MOPT switches on.

I don’t remember what the minimum voltage needs to be, but your Victron App should tell you. 

I solved the problem by putting an inline switch in the positive lead from the weak panel. When the MPPT does not start, I take take panel out of the array by using the inline switch. When  the MPPT starts, I switch the weak panel back in again. Once the controller is functioning, it will accept the weak panel as just one part of the array and everything functions normally. 

For me, or was not a serious enough problem to justify buying  a new panel, but that would be the correct solution.

That is one possibility, hope it helps.

 

Greg Shea

Sharki 133 Cap des Iles

Kilada



On Sep 8, 2021, at 4:15 AM, Alain Durante <info@...> wrote:



Bonjour Stefano

 

Thank you for your reply, I will try soon and let you know.

 

Cordialement,

 

Alain Durante

Amel 54 / 21 / Meige

 

 

De : main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> De la part de Stefano Biffi via groups.io
Envoyé : mercredi 8 septembre 2021 09:40
À : main@amelyachtowners.groups.io
Objet : Re: [AmelYachtOwners] VICTRON MPPT 75/15

 

Hallo, I have the same mppt, after the season restart I had the same, found all 4 breakers.. I make them OFF and ON, for me was remove and reposition, and everything was back on duty. Hope it will help you 

Stefano

N’EVEREST Super Maramu 185

Italy 




Il giorno 8 set 2021, alle ore 09:17, Alain Durante <info@...> ha scritto:



Hello,

I am having problem to connect my new Solara pannels, I have 2 Victron MPPT 75/15, one is working fine for already installed pannels and the only difference I can found between these 2 MPPT, is the status of the battery is showing "Bulk" for the one working and "Off" for the one not working.

Does any one knows how to change it from off to bulk?

Thank you for your help.

Alain
Amel 54/21 Meige
Currently in Corsica 

 

 







Envoyé de mon iPhone


Re: LLC or Corporate ownership of vessel

Teun BAAS
 

It is not necessarily that simple. Until last year I had my boat owned by an UK corporation which was owned by a HONG KONG Holding which ultimately I own; she was Dutch registered; I hold Dutch passport; but also USA as well as CHINA legal residency. Still several insurance companies were asking about ultimate beneficiary of these corporations.

In 1 case I was asked where I file my taxes which is both in USA as well as the NETHERLANDS. As soon as they realize the USA connection they refused my application.

Also - it is very possible to avoid or down play my USA connection (f.e.: by using the address of my overseas companies) but I really don't want to run the risk once I have a substantial claim that they investigate and deny coverage under the premises that I didn't fully disclose on my application.


T

.


-------- Original message --------
From: "Mark Erdos via groups.io" <mcerdos@...>
Date: 9/7/21 19:46 (GMT-08:00)
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] LLC or Corporate ownership of vessel

On the contrary, having the vessel owned by an LLC has many advantages. First, there is the obvious tax advantage. Second, if you are American and you flag and own your vessel outside of the USA, you can obtain insurance where other US flagged vessels can’t. When it comes time to sell the vessel, you can sell the entire corporation to the new owner. This way the new owner gets the insurance, licenses etc. I would never buy a vessel this way, but it is an option. Perhaps the best advantage is the protection of your personal assets should be find yourself liable in an accident or spill of some type. Keep in mind laws change from country to country but all will recognize limited liability.

 

One of the other reasons we put our Amel into a corporation was survivor benefits. As share holders, we both have ownership. A friend had a lot of trouble when her husband died in a foreign port. She found out the hard way how every country has different laws. The vessel was in his name and they refused to immediately acknowledge their US legal will. The vessel was seized. She had to hire a local lawyer and eventually got control of the vessel so she could sell it.

 

All port authorities understand corporate owned vessels. If a single super yacht has ever entered their country, then they understand. Every single large yacht is corporate owned. We are BVI owned and flagged and have never had issue with entering.  

 

The cost can vary from country to country. There are big differences. Grand Cayman is one of the most expensive. Some countries require tonnage surveys and vessel surveys. You need to watch for annual fees and filing requirements for the corporation. Also, countries require registration renewals at various times. Some are annually which is a real pain if you plan to sail the globe.

 

If you have specific questions feel free to private email me.

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Tahiti, French Polynesia

www.creampuff.us

 

From: main@AmelYachtOwners.groups.io [mailto:main@AmelYachtOwners.groups.io] On Behalf Of Ben and Gayle Super Maramu #347 via groups.io
Sent: Tuesday, September 7, 2021 10:39 AM
To: main@AmelYachtOwners.groups.io
Subject: [AmelYachtOwners] LLC or Corporate ownership of vessel

 


I’m thinking about putting a new boat into an LLC or corporation  legal entity.  Has anyone done such and run into issues in a  foreign port?  Do most customs and port authorities understand these documentations?  I would think so but maybe not in smaller nations 


Re: 24V+ Isolated Ground Leak

Mark McGovern
 

Alan,

From your answer I'm guessing I'm the one who sent things a bit awry.  Thanks for trying to get things back on track.  Clearly, I have a similar issue to Paul. I am hoping you can help me understand what I am seeing on my boat:

1.  Masse + light does not light when I move switch to Masse +
2.  Masse - light does not light when I move the switch to Masse -
3.  If I purposely connect a wire from +ve to Bonding, Masse + light turns on when I move the switch to Masse +
4.  If I purposely connect a wire from -ve to Bonding, Masse - light turns on when I move the switch to Masse -
5.  I measure pretty close to house bank voltage between +ve and Bonding (26.5v).
6.  I measure house bank voltage between +ve and -ve (26.5v)
7.  I measure zero volts between -ve and Bonding
8.  I measure 10-12 mega ohms resistance between -ve and Bonding

So based on this information and what you wrote, it appears that somewhere I have a connection between -ve and Bonding.  That connection is clearly not a good connection given that the Masse - light does not light up (unless I purposely make a good connection between -ve and Bonding) and given the really high resistance I have between -ve and Bonding.  Would you agree? If not, what do you think is happening?

Thanks,
Mark

--
Mark McGovern
SM #440 Cara
Belfast, ME USA


Re: VICTRON MPPT 75/15

Alain Durante <info@...>
 

Bonjour Greg,

 

Thank you for your reply.

 

Each of your panels are 12V or 24V?

 

Cordialement,

 

Alain Durante

 

Amel 54/21 Meige

 

 

De : main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> De la part de Gregory Shea via groups.io
Envoyé : mercredi 8 septembre 2021 15:15
À : main@amelyachtowners.groups.io
Objet : Re: [AmelYachtOwners] VICTRON MPPT 75/15

 

Bonjour Alain, 

I have your problem because a cheap Chinese panel in my solar array cannot reach minimum voltage for the MPPT to turn on each morning. The MPPT “sees” the minimum voltage in a parallel system so, if one panel is under performing, the MPPT won’t turn on, even if all the other panels are above minimum. You can troubleshoot it by checking the voltage output of each of the panels connected to that MPPT, after you know you have enough solar power in the morning because the second MOPT switches on.

I don’t remember what the minimum voltage needs to be, but your Victron App should tell you. 

I solved the problem by putting an inline switch in the positive lead from the weak panel. When the MPPT does not start, I take take panel out of the array by using the inline switch. When  the MPPT starts, I switch the weak panel back in again. Once the controller is functioning, it will accept the weak panel as just one part of the array and everything functions normally. 

For me, or was not a serious enough problem to justify buying  a new panel, but that would be the correct solution.

That is one possibility, hope it helps.

 

Greg Shea

Sharki 133 Cap des Iles

Kilada



On Sep 8, 2021, at 4:15 AM, Alain Durante <info@...> wrote:



Bonjour Stefano

 

Thank you for your reply, I will try soon and let you know.

 

Cordialement,

 

Alain Durante

Amel 54 / 21 / Meige

 

 

De : main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> De la part de Stefano Biffi via groups.io
Envoyé : mercredi 8 septembre 2021 09:40
À : main@amelyachtowners.groups.io
Objet : Re: [AmelYachtOwners] VICTRON MPPT 75/15

 

Hallo, I have the same mppt, after the season restart I had the same, found all 4 breakers.. I make them OFF and ON, for me was remove and reposition, and everything was back on duty. Hope it will help you 

Stefano

N’EVEREST Super Maramu 185

Italy 




Il giorno 8 set 2021, alle ore 09:17, Alain Durante <info@...> ha scritto:



Hello,

I am having problem to connect my new Solara pannels, I have 2 Victron MPPT 75/15, one is working fine for already installed pannels and the only difference I can found between these 2 MPPT, is the status of the battery is showing "Bulk" for the one working and "Off" for the one not working.

Does any one knows how to change it from off to bulk?

Thank you for your help.

Alain
Amel 54/21 Meige
Currently in Corsica 

 

 







Envoyé de mon iPhone


Re: QSails, Turkey and Incidence Sails, France

 

One more thing when ordering sails from either source. Be sure that you understand the terms of the purchase. Of course, this is true with any purchase you make.

Incidence brochure and Order states: "Manufacturing timeframe Delivery time is six weeks but is not a contractual point, just an indicative time frame. The fact of being ahead of delivery time or delayed is not an order invalidation, and manufacturing times are only indicative." I think this means, no matter how slow we are, it is not our fault.

QSails: They do not have such a statement on their brochure or order. They have always tried to produce and deliver within 3 weeks and sometimes sooner. I think that this contributed to customer disappointment when COVID impacted the Supply Chain and also impacted FedEx and UPS. This led to customer dissatisfaction with QSails. I believe that under the COVID-related impact on the Supply Chain that you can expect about the same delivery times with QSails as Incidence Sails of 6 weeks or less. However, you must understand two things with each of them:
1.) Dimension Polyant in Germany (sailcloth manufacturer) has been very unreliable since COVID, blaming their bad delivery problems on the delivery to them of fiber from China and other locations.
2.) Please be very, very careful at the time of delivery and inspect the packages to be sure that everything is received and there is no damage to the sails. If you sign the delivery receipt as "accepted" there is no recourse with the shipper, and how can you blame QSails if FedEx lost 1 box of 2?
--
 
Best,
 
CW Bill Rouse
Amel Owners Yacht School
720 Winnie St
Galveston Island, TX 77550

+1(832) 380-4970


Re: VICTRON MPPT 75/15

Alain Durante <info@...>
 

Hello,

 

I did already but nothing happening!

 

Thank you for your help.

 

Cordialement,

 

Alain Durante

 

Amel 54/21/ Meige

 

De : main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> De la part de Matt Salatino via groups.io
Envoyé : mercredi 8 septembre 2021 16:36
À : main@AmelYachtOwners.groups.io
Objet : Re: [AmelYachtOwners] VICTRON MPPT 75/15

 

In the Victron app, go to settings ( little gear in upper left corner)
then Battery
then 3rd line down, charger enable. Make sure this is switched on.


Re: LLC or Corporate ownership of vessel

Ben and Gayle Super Maramu #347
 

Thanks all.  There are a lot of intelligent comments here.  It seems I’ll have no issues with a corporate ownership structure.

Ben Driver

On Sep 7, 2021, at 7:58 PM, Paul Harries via groups.io <Pharries@...> wrote:

I had suggested this as a topic for Amel meeting to Bill a few weeks ago, problem is with finding a good presenter who knows pros and cons of various countries to register in. Does anyone know such an expert?

--
Paul Harries
Prospective Amel Buyer


Re: VICTRON MPPT 75/15

Matt Salatino
 

In the Victron app, go to settings ( little gear in upper left corner)
then Battery
then 3rd line down, charger enable. Make sure this is switched on.


Re: VICTRON MPPT 75/15

Gregory Shea
 

Bonjour Alain, 
I have your problem because a cheap Chinese panel in my solar array cannot reach minimum voltage for the MPPT to turn on each morning. The MPPT “sees” the minimum voltage in a parallel system so, if one panel is under performing, the MPPT won’t turn on, even if all the other panels are above minimum. You can troubleshoot it by checking the voltage output of each of the panels connected to that MPPT, after you know you have enough solar power in the morning because the second MOPT switches on.
I don’t remember what the minimum voltage needs to be, but your Victron App should tell you. 
I solved the problem by putting an inline switch in the positive lead from the weak panel. When the MPPT does not start, I take take panel out of the array by using the inline switch. When  the MPPT starts, I switch the weak panel back in again. Once the controller is functioning, it will accept the weak panel as just one part of the array and everything functions normally. 
For me, or was not a serious enough problem to justify buying  a new panel, but that would be the correct solution.
That is one possibility, hope it helps.

Greg Shea
Sharki 133 Cap des Iles
Kilada


On Sep 8, 2021, at 4:15 AM, Alain Durante <info@...> wrote:



Bonjour Stefano

 

Thank you for your reply, I will try soon and let you know.

 

Cordialement,

 

Alain Durante

Amel 54 / 21 / Meige

 

 

De : main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> De la part de Stefano Biffi via groups.io
Envoyé : mercredi 8 septembre 2021 09:40
À : main@amelyachtowners.groups.io
Objet : Re: [AmelYachtOwners] VICTRON MPPT 75/15

 

Hallo, I have the same mppt, after the season restart I had the same, found all 4 breakers.. I make them OFF and ON, for me was remove and reposition, and everything was back on duty. Hope it will help you 

Stefano

N’EVEREST Super Maramu 185

Italy 



Il giorno 8 set 2021, alle ore 09:17, Alain Durante <info@...> ha scritto:



Hello,

I am having problem to connect my new Solara pannels, I have 2 Victron MPPT 75/15, one is working fine for already installed pannels and the only difference I can found between these 2 MPPT, is the status of the battery is showing "Bulk" for the one working and "Off" for the one not working.

Does any one knows how to change it from off to bulk?

Thank you for your help.

Alain
Amel 54/21 Meige
Currently in Corsica 

 

 






Envoyé de mon iPhone


Re: 24V+ Isolated Ground Leak

 

Paul,

I helped you find a potential problem with the two unknown wires connected to the negative side of the 24v PERMANENT BUS.

Did you trace those?

Best,

CW Bill Rouse 
Amel Owners Yacht School
+1 832-380-4970 | brouse@...
720 Winnie, Galveston Island, Texas 77550 
www.AmelOwnersYachtSchool.com 
Yacht School Calendar: www.preparetocastoff.blogspot.com/p/calendar.html


   


On Wed, Sep 8, 2021, 5:57 AM Alan Leslie <s.v.elyse@...> wrote:
Hi Martin,

Many Amel boats have been modified (ours included) and perhaps this binding wire was for a piece of equipment that had a metallic connection to saltwater, but that piece of equipment is no longer there. 
For example we replaced the Calpeda Air con pump with a March pump. The Calpeda pump is all metal and has a bonding wire connected usually to the metal one way valve on the outlet. The March pump has no metal parts in contact with salt water hence no need for a bonding wire...so it is no longer connected.

Rather than a list of components, as I said many Amels have been modified, you should check and be sure that EVERY metallic part that is in contact with sea water has a bonding wire attached to it...and that bonding wire is connected to the rudder zincs.

Cheers
Alan
Elyse SM437


Re: 24V+ Isolated Ground Leak

Alan Leslie
 

Hi Martin,

Many Amel boats have been modified (ours included) and perhaps this binding wire was for a piece of equipment that had a metallic connection to saltwater, but that piece of equipment is no longer there. 
For example we replaced the Calpeda Air con pump with a March pump. The Calpeda pump is all metal and has a bonding wire connected usually to the metal one way valve on the outlet. The March pump has no metal parts in contact with salt water hence no need for a bonding wire...so it is no longer connected.

Rather than a list of components, as I said many Amels have been modified, you should check and be sure that EVERY metallic part that is in contact with sea water has a bonding wire attached to it...and that bonding wire is connected to the rudder zincs.

Cheers
Alan
Elyse SM437


Re: 24V+ Isolated Ground Leak

Martin Birkhoff
 

Hi all,

is there a technical drawing or sketch showing the components of a SM or 54 connected to the bonding system. If a sketch doesn´t exist a list of components would be helpful too. 
Background is I found a loose bonding cable beneath the engine and have no idea where it was fixed. 

Regards

Martin

Mago del Sur 54#40
Alicante, Spain


Re: 24V+ Isolated Ground Leak

Alan Leslie
 

Hi Paul,

I think things have gone a little awry in this discussion.

The positive and negative sides of your battery bank should float i.e.NOT be connected anywhere to the bonding system  (the green/yellow wires to the zincs, sometimes erroneously called "ground")

So, with your multimeter on VDC  you should measure close to no volts (no potential) between +ve to the bonding wire, and -ve to the bonding wire.

The fact that you read +25 VDC between the +ve and the bonding wire  tells you that, somewhere, the -ve from your battery bank is connected to the bonding.

This is what the MASSE lights tell you....either +ve is connected to the bonding or -ve is connected to the bonding, somehow.

The fact that when you flip the navigation breaker to OFF (it's a double pole breaker and breaks both +ve and -ve) the 25VDC between +ve and bonding goes away, tells you that the -ve is connected to the bonding somewhere AFTER that breaker.

So, this means that on some piece(s) of equipment powered by that breaker there is a connection between -ve and the bonding.

As Bill said, this can often be a "meticulous" electrician taking a wire from an instrument "ground" connection to the bonding.
A lot of instruments have their "ground" connection internally connected to -ve and that will cause this issue.
It could also be that this "meticulous" electrician took a wire from the metal case of some piece of equipment powered by this breaker, and connected it to the bonding.

You need to identify each piece of equipment that is powered by that breaker and check to see if there is a wire from it connected to the bonding system...when you find it (them), remove it.

None of your electronic equipment should have the "ground" connection connected to the bonding. The bonding is for electrolysis prevention, and is connected to all the metal parts in the boat that are in contact with sea water. It is NOT electrical "ground".

Hope this helps

Cheers

Alan
Elyse SM437



Re: VICTRON MPPT 75/15

Alain Durante <info@...>
 

Bonjour Stefano

 

Thank you for your reply, I will try soon and let you know.

 

Cordialement,

 

Alain Durante

Amel 54 / 21 / Meige

 

 

De : main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> De la part de Stefano Biffi via groups.io
Envoyé : mercredi 8 septembre 2021 09:40
À : main@amelyachtowners.groups.io
Objet : Re: [AmelYachtOwners] VICTRON MPPT 75/15

 

Hallo, I have the same mppt, after the season restart I had the same, found all 4 breakers.. I make them OFF and ON, for me was remove and reposition, and everything was back on duty. Hope it will help you 

Stefano

N’EVEREST Super Maramu 185

Italy 



Il giorno 8 set 2021, alle ore 09:17, Alain Durante <info@...> ha scritto:



Hello,

I am having problem to connect my new Solara pannels, I have 2 Victron MPPT 75/15, one is working fine for already installed pannels and the only difference I can found between these 2 MPPT, is the status of the battery is showing "Bulk" for the one working and "Off" for the one not working.

Does any one knows how to change it from off to bulk?

Thank you for your help.

Alain
Amel 54/21 Meige
Currently in Corsica 

 

 






Envoyé de mon iPhone


Re: VICTRON MPPT 75/15

Stefano Biffi
 

Hallo, I have the same mppt, after the season restart I had the same, found all 4 breakers.. I make them OFF and ON, for me was remove and reposition, and everything was back on duty. Hope it will help you 

Stefano
N’EVEREST Super Maramu 185
Italy 

Il giorno 8 set 2021, alle ore 09:17, Alain Durante <info@...> ha scritto:



Hello,

I am having problem to connect my new Solara pannels, I have 2 Victron MPPT 75/15, one is working fine for already installed pannels and the only difference I can found between these 2 MPPT, is the status of the battery is showing "Bulk" for the one working and "Off" for the one not working.

Does any one knows how to change it from off to bulk?

Thank you for your help.

Alain
Amel 54/21 Meige
Currently in Corsica 

 

 





Envoyé de mon iPhone


VICTRON MPPT 75/15

Alain Durante <info@...>
 

Hello,

I am having problem to connect my new Solara pannels, I have 2 Victron MPPT 75/15, one is working fine for already installed pannels and the only difference I can found between these 2 MPPT, is the status of the battery is showing "Bulk" for the one working and "Off" for the one not working.

Does any one knows how to change it from off to bulk?

Thank you for your help.

Alain
Amel 54/21 Meige
Currently in Corsica 

 

 





Envoyé de mon iPhone


Re: 24V+ Isolated Ground Leak

Paul Stascavage
 

John,

According to Mark, it appears that your statement regarding the readings being correct are correct.

I was freaking out seeing house bank voltages (24 V+) between the POSITIVE side and BONDING side, but according to Mark, this is indeed what we should see.

I verified that my Masse Test Light is indeed working, as Mark suggested, by jumping POSITIVE to BONDING then NEGATIVE to BONDING and seeing if the respective light illuminates - they did.

As Mark explained it, seeing voltage only indicates potential for current flow.  

Hence, it appears we don’t currently have a leak - no measurable current flow.  I’m going to change the zincs and keep a close eye on the new ones.

Thank you Bill H, Bill R, John, and Mark for your help.  In the end, it turns out I didn’t have a problem in the first place, but you all helped me reach that conclusion, and learn a good deal in the process.

All the best,

Paul Stascavage
SM #466 - s/v Rita Kathryn
Currently Exploring City Island, NY

www.RitaKathryn.com

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