Date   

Re: 24 Volt Outlet

mfmcgovern@...
 

Duane,

I can certainly spare one.  Contact me offline at mfmcgovern at gmail dot com.

Mark McGovern
SM #440 Cara
Deale, MD USA


Re: [Amel Yacht Owners] Repairs to PC Boards- Onan and others

Alex Ramseyer <alexramseyer@...>
 

Hi Eric,
thanks for the contact.
I'll send the picture in an e-mail as suggested and after that we'll see.
Best regards Alex


On Wednesday, January 10, 2018, 4:33:53 PM GMT-4, 'sailormon' kimberlite@... [amelyachtowners] wrote:


 

Alex,

His name is Maarten and he speaks English, French, Dutch, and Spanish.

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Wednesday, January 10, 2018 2:42 PM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Repairs to PC Boards- Onan and others

 

 

Hi Alex,

Here is a note I received from my friend Marten in Bogota. He is a Dutch engineer who repairs circuit boards.

Please contact him directly and use my name.

Fair Winds

Eric Freedman

Kimberlite Amel Super Maramu #376

 

. I even start to repair now for the Colombian navy. The boards need to have a minimum value of 500$, else it does not make sense to repair, but I guess it is. The epoxy might be an issue, it depends of how thick it is. It takes sometimes a lot of effort only to remove it. Best would be to send an email with a picture of the board, so we can check if it is worth to send and to repair. My professional email: co@...

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Tuesday, January 02, 2018 1:56 PM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] who does ONAN PCB board repairs?

 

 

Dear Amelians,

I had to buy a new PCB board for my ONAN generator which finally seems to work fine for more than just a couple days...

I kept my old board, hoping to find someone who knows how to analyze faults and eventually repair this rather expensive part and then keep it as a spare.

So does anyone of you know somebody who could do this work?

Best regards,

Alex, SY NO STRESS

AMEL54 #15


Re: [Amel Yacht Owners] Re: Generator charging question

greatketch@...
 

The variable start timer is a standard feature on most small marine AC units where the manufacturer would reasonably expect more than one unit to be installed on a boat.

If you have multiple AC units that are starting at the same time, dig into the manual.  You will most likely find a way to alter the timing so they stagger-start when powered up at the same time.

Climmia, Cruiseair, and MarinAire--among others--have this feature.

Bill Kinney
SM160, Harmonie
Grand Bahama Is.


Re: [Amel Yacht Owners] Re: Gasket for Hatches

karkauai
 

Thanks, Pat.
You said you had plenty left over and could have given me some. Do you know if it was more than 25 feet to do all four hatches?

Kent
S/V Kristy
SM243
Kent , Pretty sure this is what I bought and it fit perfectly , there is several sizes available , but I think 1/2" X 1/2" is what I ordered. Take a measurement of your hatches to be sure. It comes from 25 ft. to 100 ft. rolls. I had plenty on board, could have given to you in St. Michaels. Say Hi! to Iris .


Re: [Amel Yacht Owners] Re: Gasket for Hatches

karkauai
 

Hi Eric,
I'll ck them out, thanks.


Kent
S/V Kristy
SM 243
Hi Kent,

Did you try contacting Budget Marine in St Maarten?

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

.


Re: [Amel Yacht Owners] Coppercoat?

smiles bernard
 

Many thanks for your thoughts and experiences on this subject 
Very much appreciated. 
I coppercoated a folding tri I owned and loved the stuff. 
I’m happy to dive on the hull and clean of occasional slime etc
Our maramu does not have the same drive as the SMs so I might not need to lift every year. 
Plus a couple of factors specific to our boat and situation :
1. We have her on the hard in a warm place and she’ll be laid up for 6 months so she’d be nice and dry pre application
2. On haul out The current anti fouling was crazed / hair line cracked in various places. The paint guy in the yard sanded the antifoul off in one patch and said all that is beneath is primer hen hull. No epoxy and he recommended removing all crazed anti foul and primer then expoxying before anything else 


So it’s tempting to go for it and coppercoat but it is expensive and we are on a tight budget  as get ready to  quit jobs and head off soon


All the best
Miles


On 10 Jan 2018, at 15:18, Ian & Judy ianjudyjenkins@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Hi Bernard, Mark,


 We have had Coppercoat on since 2010. As reported before on this site we had mixed views the first season--the boat had been stationary in a muddy river in the UK for 6 months after application and in particular we hadn't given is a gentle sanding down before launch.

 Since then we have been very happy, though it's fair to say that the boat is now ashore most winters. We've been in the Med all this time, except for a few months on the west coast of Scotland.


A little slime builds up after a couple of months but comes off very easily.


 Application is actually pretty easy, though as with all such jobs it's important to prepare properly. In our case that meant sand blasting 10 years of antifouling. The guy who did it used a machine so precise that the gel coat looked as though it had just left the mould.


 At that point get a surveyor to run his moisture meter over the hull and give you a written report that it is in good order. After that, in our case, they had to slightly roughen up the gelcoat surface as we chose to put two coats of ordinary epoxy on before the Coppercoat. The iron keel needs to treated carefully with appropriate epoxy on a completely dry day.


 Once that preparation had been done, painting on the Coppercoat was very simple using a roller. It's a water based paint. It's really important to mix one litre at a time as the copper powder is heavy. You need one person mixing while another rolls. You can pretty well roll one coat straight away on another. There is not a lot of drying time needed--check on the instructions.


 We had sanded and painted antifouling for 33 years before we found Coppercoat and it achieves for us everything we hoped for.


 Ian and Judy, Pen Azen, SM 302, Preveza, Greece


From: amelyachtowners@... <amelyachtowners@...> on behalf of 'Mark Erdos' mcerdos@... [amelyachtowners] <amelyachtowners@...>
Sent: 09 January 2018 20:19:43
To: amelyachtowners@...
Subject: RE: [Amel Yacht Owners] Coppercoat?
 


Part of the argument for Copper Coat is their claim you save money not having to haul the boat as often. However, you will still need to haul an Amel to do drive maintenance. Therefore, not much of a savings when you think about it.

 

Also, the procedure to apply Copper Coat is not something an everyday boat yard does often or knows how to do. It is not as easy to apply as paint.

 

My 2 cents

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Martinique

www.creampuff.us

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Tuesday, January 9, 2018 11:11 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Coppercoat?

 

 

Hello there
I’d be interested if n group members thoughts and ideas experience with coppercoat
Assuming the hull is dry and well prepared etc
All the best for the new year
Miles
Maramu




Re: 24 Volt Outlet

Duane Siegfri
 

Mark,

Could I buy one of the Italian receptacles (Prise 24V in your photo) from you?  I can't seem to find a place to order it from.

Duane


Re: [Amel Yacht Owners] Re: 24 Volt Outlet

mfmcgovern@...
 

Ryan,

That treasure trove of random Amel information Bill Rouse shared the following link with me a few months ago for those "oddball" DC plugs:  http://www.leadsdirect.co.uk/shop/italian-plug-rewireable-white/

The previous owners of our boat must have hoarded these as I found about a dozen or so of them in the spares when I bought the boat.

On a side note, SM#440 came wired with three (3) "power strips" on the starboard side lockers.  One in the forward cabin, one in the salon, and one in the aft cabin.  Each has 1 x 3-prong 12v, 1 x 3-prong 24v, 1 x Shore Power 220v, and 1 x Inverter 220v.  See the attached  pic.  Olivier Beaute and Bill Rouse were a bit surprised to find them so I guess they are not common but they sure are handy.

Mark McGovern
SM #440 Cara
Dealer, MD USA
 


Re: [Amel Yacht Owners] Re: Generator charging question

eric freedman
 

https://www.engineeringtoolbox.com/awg-wire-gauge-d_731.html

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Thursday, January 11, 2018 10:40 AM
To: amelyachtowners@...
Subject: RE: [Amel Yacht Owners] Re: Generator charging question

 

 

https://www.engineeringtoolbox.com/awg-wire-gauge- 731.html

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Thursday, January 11, 2018 10:36 AM
To: amelyachtowners@...
Subject: RE: [Amel Yacht Owners] Re: Generator charging question

 

 

https://www.engineeringtoolbox.com/awg-wire-gauge-d_731.html

 

Hi ,

The wire I removed was 2.5 mm diameter not 2.5 sq mm.  I don’t know why mine is different. In any event 2.5 mm equates to over 5 sq. mm which is 10 gauge. That is what I am currently using.

I am aware not to coil up the cable and stretch it out on the dock for shorter runs.

That is also why I am adding a circuit breaker in the cable.

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Thursday, January 11, 2018 9:07 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Re: Generator charging question

 

 

Per Alan's comment here is the link to Olivier Beaute's previous post regarding the Shore Power Plug and Cable on Amel SMs:  https://groups.yahoo.com/neo/groups/amelyachtowners/conversations/messages/28919

 

And here is a copy of the text:





Hello Alexander,

 

the original shore power cable installed in your SM is a 3G2.5 HO7. This is a high quality cable (HO7), with 3 2.5sqmm wires, able to carry 16 amps, not more. If you connect it to a 32A, even a 63A dock outlet, and turn on ALL of your 230V equipments, it will get fire in a few seconds, without tripping the dock's breaker.

This cable can only carry 16 amps, and if you have no other option than connecting to a 32A or 63A dock outlet, you MUST monitor your draw, and wash your clothes AFTER the scuba tanks are full.

Alan is right, the 32A breaker in the galley is made to hold the higher genset amperage...

 

When you connect to shore power, the cable must be as short as possible and uncoiled. Don't use unnecessary extensions. I've seen boats with 40 metres shore power cable nicely coiled in the lazarette, as the dock outlet was 3 metres from stern. This is a very safe way to get fire in your boat. If you have no choice, first uncoil your cable and spread it on the dock.

 

Concerning the originally mounted 110V/230V, 6kW step-up transformer (cubic grey box in engine room, optionnal) those who have it probably noticed that the 110V shore cable was bigger (3G4), able to carry 25A. So don't take more than 25A out of it (which means 15A on the 220V side of this transformer).

This transformer is NOT equipped with a galvanic isolator, meaning the ground is common to 110V input and 220V output. The 110V shore cable MUST be connected to the dock's ground/earth.

If you want to be protected from stray currents coming from your neighbors through the ground/earth wire, you need to install a galvanic isolator on the 110V input line.

Now some new products include a galvanic isolator, that's why they're called "isolation transformers".

 

Be careful with 220V but keep in mind that 12V or 24V could be even more dangerous (fire).

 

OLIVIER 

 

Mark McGovern

SM #440 Cara

Deale, MD USA

 


Re: [Amel Yacht Owners] Re: Generator charging question

eric freedman
 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Thursday, January 11, 2018 10:36 AM
To: amelyachtowners@...
Subject: RE: [Amel Yacht Owners] Re: Generator charging question

 

 

https://www.engineeringtoolbox.com/awg-wire-gauge-d_731.html

 

Hi ,

The wire I removed was 2.5 mm diameter not 2.5 sq mm.  I don’t know why mine is different. In any event 2.5 mm equates to over 5 sq. mm which is 10 gauge. That is what I am currently using.

I am aware not to coil up the cable and stretch it out on the dock for shorter runs.

That is also why I am adding a circuit breaker in the cable.

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Thursday, January 11, 2018 9:07 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Re: Generator charging question

 

 

Per Alan's comment here is the link to Olivier Beaute's previous post regarding the Shore Power Plug and Cable on Amel SMs:  https://groups.yahoo.com/neo/groups/amelyachtowners/conversations/messages/28919

 

And here is a copy of the text:




Hello Alexander,

 

the original shore power cable installed in your SM is a 3G2.5 HO7. This is a high quality cable (HO7), with 3 2.5sqmm wires, able to carry 16 amps, not more. If you connect it to a 32A, even a 63A dock outlet, and turn on ALL of your 230V equipments, it will get fire in a few seconds, without tripping the dock's breaker.

This cable can only carry 16 amps, and if you have no other option than connecting to a 32A or 63A dock outlet, you MUST monitor your draw, and wash your clothes AFTER the scuba tanks are full.

Alan is right, the 32A breaker in the galley is made to hold the higher genset amperage..

 

When you connect to shore power, the cable must be as short as possible and uncoiled. Don't use unnecessary extensions. I've seen boats with 40 metres shore power cable nicely coiled in the lazarette, as the dock outlet was 3 metres from stern. This is a very safe way to get fire in your boat. If you have no choice, first uncoil your cable and spread it on the dock.

 

Concerning the originally mounted 110V/230V, 6kW step-up transformer (cubic grey box in engine room, optionnal) those who have it probably noticed that the 110V shore cable was bigger (3G4), able to carry 25A. So don't take more than 25A out of it (which means 15A on the 220V side of this transformer).

This transformer is NOT equipped with a galvanic isolator, meaning the ground is common to 110V input and 220V output. The 110V shore cable MUST be connected to the dock's ground/earth.

If you want to be protected from stray currents coming from your neighbors through the ground/earth wire, you need to install a galvanic isolator on the 110V input line.

Now some new products include a galvanic isolator, that's why they're called "isolation transformers".

 

Be careful with 220V but keep in mind that 12V or 24V could be even more dangerous (fire).

 

OLIVIER 

 

Mark McGovern

SM #440 Cara

Deale, MD USA

 


Re: [Amel Yacht Owners] Re: Generator charging question

eric freedman
 

https://www.engineeringtoolbox.com/awg-wire-gauge-d_731.html

 

Hi ,

The wire I removed was 2.5 mm diameter not 2.5 sq mm.  I don’t know why mine is different. In any event 2.5 mm equates to over 5 sq. mm which is 10 gauge. That is what I am currently using.

I am aware not to coil up the cable and stretch it out on the dock for shorter runs.

That is also why I am adding a circuit breaker in the cable.

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Thursday, January 11, 2018 9:07 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Re: Generator charging question

 

 

Per Alan's comment here is the link to Olivier Beaute's previous post regarding the Shore Power Plug and Cable on Amel SMs:  https://groups.yahoo.com/neo/groups/amelyachtowners/conversations/messages/28919

 

And here is a copy of the text:



Hello Alexander,

 

the original shore power cable installed in your SM is a 3G2.5 HO7. This is a high quality cable (HO7), with 3 2.5sqmm wires, able to carry 16 amps, not more. If you connect it to a 32A, even a 63A dock outlet, and turn on ALL of your 230V equipments, it will get fire in a few seconds, without tripping the dock's breaker.

This cable can only carry 16 amps, and if you have no other option than connecting to a 32A or 63A dock outlet, you MUST monitor your draw, and wash your clothes AFTER the scuba tanks are full.

Alan is right, the 32A breaker in the galley is made to hold the higher genset amperage.

 

When you connect to shore power, the cable must be as short as possible and uncoiled. Don't use unnecessary extensions. I've seen boats with 40 metres shore power cable nicely coiled in the lazarette, as the dock outlet was 3 metres from stern. This is a very safe way to get fire in your boat. If you have no choice, first uncoil your cable and spread it on the dock.

 

Concerning the originally mounted 110V/230V, 6kW step-up transformer (cubic grey box in engine room, optionnal) those who have it probably noticed that the 110V shore cable was bigger (3G4), able to carry 25A. So don't take more than 25A out of it (which means 15A on the 220V side of this transformer).

This transformer is NOT equipped with a galvanic isolator, meaning the ground is common to 110V input and 220V output. The 110V shore cable MUST be connected to the dock's ground/earth.

If you want to be protected from stray currents coming from your neighbors through the ground/earth wire, you need to install a galvanic isolator on the 110V input line.

Now some new products include a galvanic isolator, that's why they're called "isolation transformers".

 

Be careful with 220V but keep in mind that 12V or 24V could be even more dangerous (fire).

 

OLIVIER 

 

Mark McGovern

SM #440 Cara

Deale, MD USA

 


Re: [Amel Yacht Owners] Re: 24 Volt Outlet

Ryan Meador
 

I'd advise against wiring a cigarette lighter receptacle for 24V.  Inevitably (maybe the next owner), someone will plug in 12V equipment there and blow something up.  If you did want to do this, the receptacle itself is almost certainly able to tolerate it, and you likely don't have to halve the amperage vs 12V; most connectors are rated by current, not wattage, as long as you don't exceed the maximum voltage rating.  My boat has an actual cigarette lighter at the nav station that is wired for 24V.  I assume it is original -- there were a lot of smokers in 1998!  It is terrifying to me that a guest might accidentally plug into it, but it's also a neat piece of history.

To my knowledge, there is no standardized connector for 24VDC equipment.  The 2-prong things Amel has installed in a few places (I think the fan connectors others have mentioned?  my boat has no fans) are a de facto standard only on Amels, as far as I can tell.  That's what I would use if I could find more of them.  I don't know the part number.

Thanks,
Ryan
SM 233 Iteration
Boston, MA, USA


On Wed, Jan 10, 2018 at 8:27 PM, sailor63109@... [amelyachtowners] <amelyachtowners@...> wrote:
 

Vladimir,  thanks for your reply.  It seems reasonable if I don't go over half the rated 12V amps.


Eric,  My boat has 220 volt outlets at the aft cabin desk and in the aft head instead of 24 volt.  I had not thought of plugging it into the fan above the aft cabin desk though!  That will be good for a temporary solution.

Thanks,
Duane




Re: Generator charging question

mfmcgovern@...
 

Per Alan's comment here is the link to Olivier Beaute's previous post regarding the Shore Power Plug and Cable on Amel SMs:  https://groups.yahoo.com/neo/groups/amelyachtowners/conversations/messages/28919

And here is a copy of the text:

Hello Alexander,

the original shore power cable installed in your SM is a 3G2.5 HO7. This is a high quality cable (HO7), with 3 2.5sqmm wires, able to carry 16 amps, not more. If you connect it to a 32A, even a 63A dock outlet, and turn on ALL of your 230V equipments, it will get fire in a few seconds, without tripping the dock's breaker.
This cable can only carry 16 amps, and if you have no other option than connecting to a 32A or 63A dock outlet, you MUST monitor your draw, and wash your clothes AFTER the scuba tanks are full.
Alan is right, the 32A breaker in the galley is made to hold the higher genset amperage.

When you connect to shore power, the cable must be as short as possible and uncoiled. Don't use unnecessary extensions. I've seen boats with 40 metres shore power cable nicely coiled in the lazarette, as the dock outlet was 3 metres from stern. This is a very safe way to get fire in your boat. If you have no choice, first uncoil your cable and spread it on the dock.

Concerning the originally mounted 110V/230V, 6kW step-up transformer (cubic grey box in engine room, optionnal) those who have it probably noticed that the 110V shore cable was bigger (3G4), able to carry 25A. So don't take more than 25A out of it (which means 15A on the 220V side of this transformer).
This transformer is NOT equipped with a galvanic isolator, meaning the ground is common to 110V input and 220V output. The 110V shore cable MUST be connected to the dock's ground/earth.
If you want to be protected from stray currents coming from your neighbors through the ground/earth wire, you need to install a galvanic isolator on the 110V input line.
Now some new products include a galvanic isolator, that's why they're called "isolation transformers".

Be careful with 220V but keep in mind that 12V or 24V could be even more dangerous (fire).

OLIVIER 

Mark McGovern
SM #440 Cara
Deale, MD USA


Re: [Amel Yacht Owners] electrolysis on jib furling gearbox? [1 Attachment]

John Clark
 

Is it possible that this is localized galvanic corrosion caused by saltwater/salt accumulation under the disc?  Two metals+saltwater.....

John
SV Annie SM37
St. Augustine.

On Jan 9, 2018 11:11 PM, "pandmdegroot@... [amelyachtowners]" <amelyachtowners@...> wrote:
 
[Attachment(s) from pandmdegroot@... included below]

Greetings and Happy New Year,

I’m new to the group having purchased “Liebling” SM hull #207 In June 2017.  Now she is “La Querida” berthed in Moss Landing, California.

Over the last several months I noticed something like grease dripping out from the jib furling gearbox and finally dismantled it last weekend.  In general it was in reasonable shape for a 20 year old gearbox.  However the aluminum  disc on the out put shaft showed considerable pitting which I interpret as electrolysis.  On my particular box, the aluminum is in contact with a bronze or brass bushing.  I did some reading on line and was quite alarmed to learn that neighboring boats and poor grounding of the marina shore power apparently can accelerate electrolysis on a well designed and maintained boat such as our Amels.  So two questions:

  1. Has anyone else experienced this electrolysis on the aluminum disc on top of the gearbox?  (or is mine indicative of a bigger problem)
  2. I briefly investigated galvanic isolators as protection for poorly grounded shore power.  Is this worthwhile?

Thanks in advance.

BTW our plans are to cruise to Mexicos west coast after retirement in about 3 years.  Saludos a todas!


Re: [Amel Yacht Owners] Re: Generator charging question

Brent Cameron
 


Re: [Amel Yacht Owners] Shore power cord

Danny and Yvonne SIMMS
 

Hi Eric,
I guess you know not to leave any surplus cable length coiled up. It can cause the wire to overheat and catch on fire.
Regards
Danny
SM 299
Ocean Pearl
Mangonui New Zealnd

Sent from my Vodafone Smart

On 11 Jan 2018 9:05 a.m., "'sailormon' kimberlite@... [amelyachtowners]" <amelyachtowners@...> wrote:
 

Ryan,

I bought 100 feet of 10 gauge round black rubber coated wire from Home depot about 8 years ago. It is rated at 30 amps. I hooked  it up to a 50 amp USA twist-lock plug and use only the red, black and green ground. DO NOT HOOK UP THE WHITE NEUTRAL. 

It works well with everything on board running including 3 AC units. The AC units are on timers so they all do not start at once.

I have never seen over 16 amps when everything is running.

It looks exactly like the factory stock wire supplied by Amel.

100 feet is long but on occasion it comes in handy.

I am currently working to make a box to connect into the wire near the pedestal plug with a 35 amp circuit breaker in it. This is because the breaker on the 50  amp pedestal is 50 amps.

 

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

 

I pulled the wire all the way from the stern to the transfer case so there are no splices.

I have made a number of adapters for the 30 and 50 amp European plugs that just plug into the 50 amp twistlock.

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Wednesday, January 10, 2018 2:19 PM
To: amelyachtowners@...
Subject: Re: [Amel Yacht Owners] Re: Generator charging question

 

 

Interesting that so many marinas as so limiting on power.  Is it possible to run all three air conditioners on 16A?  I've never measured the draw.

 

My SM has a shore power cord and main breaker sized for 35A (I was under the impression this is true for all SM).  I believe the generator runs through that same 35A breaker, so that's the max there as well (it's basically moot since it's a 9kW generator).  My shore power cord could use a replacement, so I've been investigating the possibility of upgrading it to handle 50A.  It would be handy to have the extra power to run the heat in the winter.  My boat came from the factory with extra dedicated heater circuits, which I don't think are standard, so it would be no trouble at all to exceed 35A draw from the panel.  The biggest challenge is fitting a larger cord through the conduit to the panel.

 

Ryan

SM 233 Iteration

Boston, MA, USA

 

 

On Wed, Jan 10, 2018 at 2:10 PM, 'Mohammad Shirloo' mshirloo@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Hi Ryan;

 

We have a 100A and a 40A charger aboard. If the batteries are being drained to proper levels for optimal life, the 100A charger will only be at max output for 10-15 minutes before the charge rate drops below the max output, so there is minimal advantage in running the two charges together. The disadvantages are, at least to a certain extent, unknown and are dependent on many factors.

 

As far as the shore power connections in other parts of the world, in the Med, there are many marinas and harbors that only have 16A connections. However there are many that also have 32A connections. Some have higher output connections as well. The limiting factor on the Amels, is the shore power connection and wiring to the panel. On our 54, it is sized for 32A. Therefore there is a 32A breaker in the aft lazarette that feeds the panel. You have to check on your SM to see the wire sizing and shore power breaker sizing.

 

The only way to get the full 50A 230V to the panel is by the generator.

 

 

Respectfully;

Mohammad and Aty

B&B Kokomo

Amel 54 #099

 

 


From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Wednesday, January 10, 2018 9:39 AM
To: amelyachtowners@...
Subject: Re: [Amel Yacht Owners] Re: Generator charging question

 

At first glance, I thought it could be dangerous to use multiple smart chargers because they could get into different states, but after thinking through all the possible combinations, I've convinced myself it is actually safe -- provided the total current is less than what the batteries can accept.  It might not produce the optimal results for your battery lifespan, though: they could transition from bulk to acceptance or acceptance to float before the battery is actually ready, because each charger can only sense its own contribution to the charge current.  Chargers in different stages shouldn't fight each other directly because they sense the current/voltage of the system.  Floating at different voltages should be safe; the charger with the lower float voltage would just not be doing anything.  If one or more chargers has a float voltage above that which the batteries are designed to handle, that would be bad... but that's also bad with just one charger.

 

I do not think it is safe to mix smart chargers and dumb chargers without knowing exactly how the dumb charger works.  It is conceivable that the dumb charger just puts out a constant voltage, and would act as a sink for a higher voltage -- then you'd get the two chargers directly fighting each other, possibly tripping breakers, and definitely wasting power.  The same could happen with two dumb chargers that have different voltage setpoints; presumably the ones Amel installed as stock were configured with the same voltage and/or were smart enough to shut off if they started acting as a sink.

 

As an aside, is a 16A shore power connection typical in some parts of the world?  At 230V, that's about the same wattage as the "small boat" 30A@120V connections in the USA.  A larger yacht like a Super Maramu is expected to connect to 50A@240V in the US, but usually also has the option of connecting to two 30A@120V connections.  I assume you can't connect to two 16A@230V connections because the 230V parts of the world don't use a split-phase power system like we do in the US, but perhaps I'm wrong about that.

 

Thanks,

Ryan

SM 233 Iteration

Boston, MA, USA

 

 

On Wed, Jan 10, 2018 at 2:11 AM, svperegrinus@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Our solar chargers by Genasun are not properly adjustable to the voltages required by Trojan for our AGM batteries.  So we disconnect solar when on shorepower to prevent over-voltage charging of full batteries.

 

We routinely turn on both battery chargers as follows:

 

(1) When charging from the generator.

(2) When we will have shore power for only one day or two.

 

Evidently after one hour or less the batteries charge at less than 100 A, and at this point it makes no difference whether you have one or both chargers on.  So we routinely turn one off.

 

Cheers,

 

Peregrinus

SM2K N. 350 (2002)

Herzliya

 

 


Re: electrolysis on jib furling gearbox?

Peter de Groot
 

Thanks Ryan, Mark, Eric and Alexandre,
All good advice, and yes electrolysis is not the correct term.  I'll be pursuing several solutions.  I sincerely appreciate the responses and suggestions

Sent from my Verizon Wireless 4G LTE DROID


Re: 24 Volt Outlet

Duane Siegfri
 

Vladimir,  thanks for your reply.  It seems reasonable if I don't go over half the rated 12V amps.

Eric,  My boat has 220 volt outlets at the aft cabin desk and in the aft head instead of 24 volt.  I had not thought of plugging it into the fan above the aft cabin desk though!  That will be good for a temporary solution.

Thanks,
Duane



Re: [Amel Yacht Owners] 24 Volt Outlet

eric freedman
 

Duane,

We have a 24 volt plug at my table in my cabin and in the head.

It is the same plug as on the fans. You could change the plug on your cpap machine and plug it into one of your fan outlets in your cabin.

Oddly enough all four of my regular crew use CPAP machines.

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Wednesday, January 10, 2018 6:07 PM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] 24 Volt Outlet

 

 

I'm going to put a 24 volt outlet in the aft cabin to run a CPAP (less than 2 amps at 24V) that has a 12/24 volt transformer block on the chord with a cigarette style plug.  

 

My problem is I can't seem to find a 24 volt outlet.  Blue Seas has a 12 volt cigarette style outlet but doesn't say anything about 24 volts.  

 

Am I missing something?  

 

Thanks,

Duane

Wanderer, SM#477

 

PS: I'm also thinking of repurposing one of the two prong outlets I have at the nav station for 24volts if I can't figure anything else out.

 

 


Re: [Amel Yacht Owners] Re: Generator charging question

eric freedman
 

My old cable was the metric equivalent of 10 gauge. Must have been a change in the wiring.

In any event if you use 10 gauge you can use up to 30 amps.

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Wednesday, January 10, 2018 5:07 PM
To: amelyachtowners@...
Subject: RE: [Amel Yacht Owners] Re: Generator charging question

 

 

The cable on our SM is rated 16A. There is a previous discussion on this forum where Olivier confirmed that.

Cheers

Alan

Elyse SM437