Re: [Amel Yacht Owners] Re: Leece-Neville 175 Amp Alternator
Well said Bill, but I have to disagree about the batteries being held at 28.8 V for long periods of time.
14.4 V is the gassing voltage for a 12 volt battery and holding the 24V bank at 28.8V for long periods of time will cause the batteries to lose electrolyte through gassing. If this electrolyte is not replaced the batteries will be damaged. Cheers Alan Elyse SM437
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Re: [Amel Yacht Owners] Re: Leece-Neville 175 Amp Alternator
Bill & Judy Rouse <yahoogroups@...>
Yes, there are differing opinions on this subject and hopefully, Eric, it is not WWIII. And I believe that you have to be especially careful when you say, "I do not believe that the alternator needs a 3 stage regulator." And also when we discuss the "Battery Bank" without clarifying the type of batteries. I always like to check with the closest person to the source to get the best informed answer. Based on what I learned from the Chief Engineer at Leece Neville, the regulator is in the Super Maramu alternator is perfect for 8-12 100-115 amp hour deep cycle flooded batteries, but not nearly as good for other types like AGM batteries. So, Henri Amel picked the best most problem free alternator for the batteries he installed...BUT, when you change the type of the batteries, you change that equation. The Chief Engineer strongly suggested a smart regulator added to the Leece Neville when I was thinking about AGM Batteries. I have found the almost all of the electricians I have talked to agree that 28.5 volts with almost zero amps will do absolutely no harm to a flooded battery bank. Voltage is NOT Current. Most of us will continue to do the things we have done as long as we are satisfied with the results...me too! And most of us do not compare alternatives when we are satisfied AND when it is something that we feel we do not fully understand...me too! So, Henri Amel's battery/alternator design in the Super Maramu is correct...but, when you start changing components and/or parameters, everything changes. I believe what I was told by Leece Neville and I am really glad Amel picked them. If you doubt it just ask any Amel 54 owner if they have ever changed their alternator. The 54 does not have Leece Neville and I think more than half have been changed. Best, CW Bill Rouse Admiral, Texas Navy Commander Emeritus Amel School www.amelschool.com 720 Winnie St Galveston Island, TX 77550 +1(832) 380-4970
On Wed, Jun 7, 2017 at 7:45 AM, divanz620@... [amelyachtowners] <amelyachtowners@yahoogroups.
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Re: [Amel Yacht Owners] Re: Eberspacher Heater
Ian Shepherd
Hello Bill, once in a while I run my
Eberspacher off a can filled with kerosene to clean it out. As our
boats only have one fuel tank, this avoids diluting the diesel
used for the main engine.
Regarding Duane's problem, I would not immediately jump to the conclusion that the ECU has failed. Duane should try someone else's ECU if he can first, rather than spend a lot of money for a spare you don't need. It's very easy to access and swap. I still think he should listen for any sign's of relay operation during the self test phase. If the relay operates, then chances are that the ECU may not be the problem as the ECU commands the test sequence. Incidentally I was chatting with another Espar owner yesterday who told me that he also had a fault on the relay board at the back end of the heater unit. This board is about one fifth of the price of an ECU. Cheers Ian SM2K 414 (2003) Crusader Cyprus
On 05/06/2017 21:07, william_maffei@...
[amelyachtowners] wrote:
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Amel - To change or not to change? The answer
Bill & Judy Rouse <yahoogroups@...>
Ian, You bring up an interesting point when you say, "Did Amel get it wrong or.." I noticed that someone said something similar on the heater thread. My following comment is NOT for you or any of the very experienced Amel owners, rather it is for the members of this forum that are here to find their Amel and those that have recently bought their Amel. In my opinion based on my experience, every Amel owner should put a high degree of trust in the decisions that Amel made (especially boats that Henri Amel participated in) regarding design, engineering, systems, production, and choices of components. I am aware of more than a few instances where "new-to-Amel" owners used their "experience" with other brands to "change" their Amel. In many cases the results were costly to the new-to-Amel owner, and in some cases very costly to the boat's next owner. Henri Amel always said, "Respect the Sea." I always say, "Respect Henri Amel." Henri Amel's choices and decisions will be right more times than anyone participating in this group. Now, I would like to say, "If you like to gamble with an expensive asset, be aware of the odds." Best, CW Bill Rouse Admiral, Texas Navy Commander Emeritus Amel School www.amelschool.com 720 Winnie St Galveston Island, TX 77550 +1(832) 380-4970
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Re: Replace mirror washing room
qmvwv3fna4dth3r32bdwtz3bpy7meopg2s2xlnuq@...
Thank you all for the help!
Oliver SV JoEmi SM 2000 no. 397
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Re: Leece-Neville 175 Amp Alternator
Thanks Clay,
That looks really interesting ! Cheers Alan Elyse SM437
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Re: Leece-Neville 175 Amp Alternator
claysparkes@...
Hi all,
I've just recently purchased two of these Alternator Regulators http://arduinoalternatorregulator.blogspot.com from Al Thomason. I'm yet to receive them, and they won't be fitted until late in the month, but they seem a cost effective way of alleviating the concerns that Alan has written about, and that I had regarding my Maramu's 1 x 55 A and 1 x 70A 28yo 'dumb' Valeo alternators. I had changed the battery bank to Exide Gel, and needed to optimise the charging profile. At $80 USD each plus freight (and seemingly comparable to Balmar et al) I hope I've just bought cheap insurance. I was really impressed by Al's support - he went beyond my expectations. Cheers Clay Maramu #260 1989 Boat's in Spain, I'm in Oz ---In amelyachtowners@..., <divanz620@...> wrote : Hello Ian, The regulator doesn't carry the 175 Amps, it just tells the alternator what to do. The current comes from the alternator. Any 3-stage regulator can control any alternator. The regulkator just modulates the field current in the alternator which dermines the alternator's output. The current that flows, no matter where it comes from, into the batteries, is dependent on the current acceptance capacity of the batteries, up to the limit of the device delivering the current. We have AGM batteries which have a much higher acceptance rate than flooded LA batteries, so if you don;t have AGMs then the limitations of the current rating of the Leece Neville alternator may not be an issue, but its built-in single stage voltage regulator will be if you use it for a long time. Cheers Alan Elyze SM437
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Re: [Amel Yacht Owners] Re: Leece-Neville 175 Amp Alternator
Hello Ian,
The regulator doesn't carry the 175 Amps, it just tells the alternator what to do. The current comes from the alternator. Any 3-stage regulator can control any alternator. The regulkator just modulates the field current in the alternator which dermines the alternator's output. The current that flows, no matter where it comes from, into the batteries, is dependent on the current acceptance capacity of the batteries, up to the limit of the device delivering the current. We have AGM batteries which have a much higher acceptance rate than flooded LA batteries, so if you don;t have AGMs then the limitations of the current rating of the Leece Neville alternator may not be an issue, but its built-in single stage voltage regulator will be if you use it for a long time. Cheers Alan Elyze SM437
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Re: [Amel Yacht Owners] Re: Leece-Neville 175 Amp Alternator
eric freedman
Ian, The top of my batteries were covered with a big label. Once I cut the label. About 1/3 of the top of the battery was the cover of all the 6 cells.. I put a very large screwdriver under the lip of the cover and popped the entire cover off. Take a close look at the top of the battery, they had to fill the battery somehow when it was made. Fair Winds Eric Kimberlite Amel Super Maramu #376
From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Wednesday, June 07, 2017 3:02 AM To: amelyachtowners@... Subject: Re: [Amel Yacht Owners] Re: Leece-Neville 175 Amp Alternator
Hello Alan, my solar panels also deliver 28.8V to my house batteries for long periods of time. However the charge regulators ensure that no current is flowing until needed. When the controllers sense a need for a top up charge they allow a 5 amp charge for a few seconds only. This is good for the batteries and is similar to the way that recovery chargers work. I tried to avoid motoring whenever possible, but when doing so, I have monitored the charge output from the Leece-Neville alternator. When the house bank is charged, the alternator output current is zero, a similar situation to the solar panels taking control of charging. My 12 house batteries will be 4 years old in October, and so far all the state indicators are in the green. It is true that Leece-Neville have a new regulator for our generator, but as far as I can see, I don't think I have a problem. I agree with Eric that batteries can dry out, particularly in hot climates. However I have yet to find a way to 'break in' to my sealed batteries. Thank you for your suggestion Alan. I will take a look in the files section at the modification. I guess that a regulator capable of handling 175 amps is going to expensive? Kind regards Ian SM2K 414 (2003) 'Crusader' Cyprus
On 06/06/2017 11:39, divanz620@... [amelyachtowners] wrote:
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Re: [Amel Yacht Owners] Re: Leece-Neville 175 Amp Alternator
Ian Shepherd
Hello Alan, my solar panels also deliver 28.8V to my house batteries for long periods of time. However the charge regulators ensure that no current is flowing until needed. When the controllers sense a need for a top up charge they allow a 5 amp charge for a few seconds only. This is good for the batteries and is similar to the way that recovery chargers work. I tried to avoid motoring whenever possible, but when doing so, I
have monitored the charge output from the Leece-Neville
alternator. When the house bank is charged, the alternator output
current is zero, a similar situation to the solar panels taking
control of charging. My 12 house batteries will be 4 years old in
October, and so far all the state indicators are in the green. It is true that Leece-Neville have a new regulator for our
generator, but as far as I can see, I don't think I have a
problem. I agree with Eric that batteries can dry out, particularly in hot climates. However I have yet to find a way to 'break in' to my sealed batteries. Thank you for your suggestion Alan. I will take a look in the files section at the modification. I guess that a regulator capable of handling 175 amps is going to expensive? Kind regards Ian SM2K 414 (2003) 'Crusader' Cyprus
On 06/06/2017 11:39, divanz620@...
[amelyachtowners] wrote:
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Re: [Amel Yacht Owners] Re: Leece-Neville 175 Amp Alternator
Hi Bob,
Your first paragraph is an exact illustration of what happens when you start the Yanmar with fully charged house batteries - even if you have, as we do, a 3-stage regulator on the Leece Neville alternator. However, I omitted to mention that we also have a field disconnect switch for the LN alternator so that if the house bank is fully charged and we want to motor, we can disconnect the field wire in the alternator so that its output is zero. Another issue with rewiring the LN alternator with a 3-stage regulator is that if your batteries are down and you start the Yanmar, the LN will put out maximum current (175Amps) until the battery voltage reaches 28.8V. The LN alternator is not "hot-rated" to produce maximum current continuously. If it is putting out 175A continuously eventually it will burnt itself out - you'll smell it before it dies ! Two solutions to that - easy, immediate, start the genset and turn on your 100A charger until the charging current gets down to something manageable for the alternator...say 130A. More complex, put a high wattage rheostat in the field wire from the regulator to the alternator so you can reduce the field current and thus reduce the LN output to safe levels...I have this all set to go, but haven't yet installed it. Your second paragraph illustrates a potential, but unlikely problem. Automotive alternators such as those used on the Yanmar and Onan are very reliable as long as they are looked after. If you disconnect the battery from the alternator while it is putting out you have the possibility to fry the diodes in the alternator. The only real solution to your scenario would be to have a "kill" switch or field disconnect switch in these alternators also. I don't have this given that I believe the risk of your scenario is very low. Cheers Alan Elyse SM437
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Re: [Amel Yacht Owners] Eberspacher Heater
Ian Shepherd
Hi Ian & Judy, yes I have met many owners that have done the same but thanks for the confirmation that it was a worthwhile change. I have to wonder why the original top line was where it is? Did Amel get it wrong or are we all distributing are on board load incorrectly? It's a well known saying 'keep the weight out of the ends'.
However I replaced my anchor chain with 90M instead of the
standard 70M and I have to say that the extra weight up front has
reduced the tendency to slam in choppy seas, enabling you to
comfortably keep up a higher speed. She sails really well now,
though despite the extra weight forward, the strip is still
submerged at the stern. Regards Ian SM2K 414 (2003) Crusader
On 05/06/2017 15:57, Ian & Judy
ianjudyjenkins@... [amelyachtowners] wrote:
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Re: [Amel Yacht Owners] Re: Leece-Neville 175 Amp Alternator
rossirossix4
The question on the Leece-Neville potentially overcharging the batteries is an interesting one. With solar charging we frequently start and use our diesel with the house batteries fully charged. The solar charger has 3 stage charged the batteries up to 28.8v and then stepped down the voltage to a trickle charge for hours but then it gets pushed up to 28.8v when the Yanmar is started--seems like even a couple of hours of motoring could cause a problem. The amps are small but I have not seen the voltage drop. Maybe the guys at Leece-Neville have an opinion.
On a somewhat related question. A while back my voltage gauge on the Yanmar was indicating a charge of 15+v. I tapped on the guage and it went to the normal range. A multimeter reading confirmed that things were normal--its happened twice in 3 years and I think the meter just gets stuck. But my question is this. If the 12v alternator regulator were to fail and go into an over charge mode, what is the immediate intervention to avoid destroying your starter battery. Do you disconnect it? Doesn't that destroy the alternator or blow the diods or is it a moot issue because the regulator is already bad? Bob, KAIMI SM429
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great source for watermaker membranes.
eric freedman
I was looking for new membranes for my watermaker and found this company. I needed SW30-2540 not only are they huge they were the least expensive by quite a bit.
We have more than 170 offices, plants and factories throughout Australia, Canada, China, Germany, Italy, Singapore, the United Kingdom and United States
Fair Winds Eric Kimberlite Amel Super Maramu #376
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Re: [Amel Yacht Owners] Re: Leece-Neville 175 Amp Alternator
eric freedman
Alan, I have had 3 sets of deep cycle batteries on Kimberlite in 15 years. The original Amel set of batteries lasted about 2000 hours. The second set was killed by a defective battery charger after about 1000 hours. The current set (including the starter battery) of 31ev batteries has about 2500 hours on them an still measures very high on capacity. I believe what kills these “no maintenance” batteries is not adding water to them. I check the batteries every few months . In the Caribbean there is some water loss due to evaporation. Other than that the bank is still at about 90%. Fair Winds Eric Kimberlite Amel Super Maramu #376
From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Tuesday, June 06, 2017 10:12 PM To: amelyachtowners@... Subject: RE: [Amel Yacht Owners] Re: Leece-Neville 175 Amp Alternator
Thanks Eric,
OK...the 12volt engine and genset alternators don't need 3-stage regulators because they are charging starting batteries not deep cycle batteries. Deep cycle batteries require a 3 stage (bulk, absorption, float) charging system. Every deep cycle battery manufacturer will tell you that. A standard or automotive engine alternator regulator, like Leece Neville, charges at 28.8V constantly and the current falls off as the batteries charge up. The voltage never drops below 28.8V when the batteries are charged and this is a big problem if one runs the engine for a long time...like all day motoring. 28.8V constantly on your deep cycle bank will eventually kill the deep cycle batteries. IF you only ever motor for a few hours at a time and not every day, then this is not such an issue. 3-stage alternator regulators are not a "scam", they are the best way to look after your deep cycle batteries. Cheers Alan Elyse SM437
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Re: [Amel Yacht Owners] Re: Leece-Neville 175 Amp Alternator
Thanks Eric,
OK...the 12volt engine and genset alternators don't need 3-stage regulators because they are charging starting batteries not deep cycle batteries. Deep cycle batteries require a 3 stage (bulk, absorption, float) charging system. Every deep cycle battery manufacturer will tell you that. A standard or automotive engine alternator regulator, like Leece Neville, charges at 28.8V constantly and the current falls off as the batteries charge up. The voltage never drops below 28.8V when the batteries are charged and this is a big problem if one runs the engine for a long time...like all day motoring. 28.8V constantly on your deep cycle bank will eventually kill the deep cycle batteries. IF you only ever motor for a few hours at a time and not every day, then this is not such an issue. 3-stage alternator regulators are not a "scam", they are the best way to look after your deep cycle batteries. Cheers Alan Elyse SM437
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Re: [Amel Yacht Owners] Re: Leece-Neville 175 Amp Alternator
eric freedman
Alan, I guess I will be starting World War 3. I do not believe that the alternator needs a 3 stage regulator. When the bank is full , the voltage drops down and the amps are in the 1-2 amp range. A good friend of mine who sells batteries, and rebuild starter motors and alternators told me that There is no need for a 3 stage regulator, He thinks the 3 stage regulators on alternators is a big scam. If they were necessary, why doesn’t the 12 V alternator on the genset and engine also have a 3 stage regulator? Fair Winds Eric Kimberlite Amel Super Maramu #376
From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Tuesday, June 06, 2017 7:40 AM To: amelyachtowners@... Subject: [Amel Yacht Owners] Re: Leece-Neville 175 Amp Alternator
Well done Ian !
While you are about it you may consider fitting an external regulator that will charge the house batteries correctly
There are a couple of ways of doing this which are illustrated well in the files section.
The problem with the internal LN regulator is that is delivers 28.8 volts... forever....., and that will eventually kill your deep cycle house batteries if you motor for long periods.
If you do motor for hours you need to have a system that will deal with charging your deep cycle house batteries in a 3-stage manner ...if you want to prolong the life of your batteries.
if you have plenty of money to spend on batteries then I guess it doesn't matter.
Cheers Alan Elyse SM437
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Re: Leece-Neville 175 Amp Alternator
Well done Ian !
While you are about it you may consider fitting an external regulator that will charge the house batteries correctly There are a couple of ways of doing this which are illustrated well in the files section. The problem with the internal LN regulator is that is delivers 28.8 volts... forever....., and that will eventually kill your deep cycle house batteries if you motor for long periods. If you do motor for hours you need to have a system that will deal with charging your deep cycle house batteries in a 3-stage manner ...if you want to prolong the life of your batteries. if you have plenty of money to spend on batteries then I guess it doesn't matter. Cheers Alan Elyse SM437
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New file uploaded to amelyachtowners
amelyachtowners@...
Hello,
This email message is a notification to let you know that a file has been uploaded to the Files area of the amelyachtowners group. File : /Leece-Neville Service Manual.pdf Uploaded by : sv_crusader <sv_freespirit@yahoo.co.uk> Description : Leece-Neville 175 Amp Alternator Service Manual You can access this file at the URL: https://groups.yahoo.com/neo/groups/amelyachtowners/files/Leece-Neville%20Service%20Manual.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, sv_crusader <sv_freespirit@yahoo.co.uk>
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New file uploaded to amelyachtowners
amelyachtowners@...
Hello,
This email message is a notification to let you know that a file has been uploaded to the Files area of the amelyachtowners group. File : /Leece-Neville Parts List.pdf Uploaded by : sv_crusader <sv_freespirit@yahoo.co.uk> Description : Leece-Neville 175 Amp Alternator Parts List You can access this file at the URL: https://groups.yahoo.com/neo/groups/amelyachtowners/files/Leece-Neville%20Parts%20List.pdf To learn more about file sharing for your group, please visit: https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398 Regards, sv_crusader <sv_freespirit@yahoo.co.uk>
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