Date   
Re: A54 fridge circulation pump

Oliver Henrichsen, SV Vela Nautica
 

Hi Bill,

I went out for sailing for the last couple of month and was not able to answer the questions that my thread implied. As there is so much response to this topic and I am a bit more station, I will try to point this topic in the right direction.
I am now on Martinique and helping also other boats with technical issues.

In the following I will give answers to your commented questions.

My (Oliver) statements and Bills comments in red. My (Oliver) answers under it. 

  1. He says, "24v batterie directly to the VESC" OK, the new pump motor is running on 24VDC and I assume the Danfoss Controller is no longer used for the water pump.
  2. He says, " The motor/pump speed is open to be controlled from 0 to 100%" I assume by the VESC?      
  3. He says, "My fridge/freezer controller is part of the ship Computer system and connected to NMEA2K bus. The original thermostats are no more used. Instead precise electronic thermometers are in both devices. These still are temperature sensors, or in English, thermostats, and is NMEA2k part of the control system?
  4. He says, "The controller checks on these thermometers and decides about cooling needs." What is the "controller?
  5. He says, "If one unit is above set threshold the controller looks also for the other and if ever possible colls both at the same time. This will further reduce working time of the raw water pump." Is this logic handled by the VESC and does the user set the parameters by connecting to the VESC via the USB connector?
  6. He says,  The controller sends serial commands to the VESC. but the VESC is very versatile so its also possible to regulate it in a simple way."  Again, what is the controller and how is it linked to the VESC
To 1. To understand the setup you need to know the components used:
a) a 24 V brushless pump, as the name says no wear on brushes like before, only the ballbearings wear and they are easy to change and cost 2 usd. Beside that the original quad pumphead is reused. Most of us got a bag of spares from the old worn pumps. I would go with AMELs 24 V as 12V is a step back and we like to have a well powered pump. 
b) A brushless motor needs a driver. In this case a VESC is used to controll the motor. VESC is short for Vedder Electronic Speed Controller designed by a clever swedish guy as open surce project. Version 3.x will do. 
c) to tell the VESC the speed to spinn the motor and start or stop the motor, I use an Microcontroller (MCU)  that sends serial commands. This MCU replaces in my setup the E51385 box and the thermostats in the fridge/freezer because the MCU can do much more than only switch the motor on / off. Its the brain of the cooling installation on my boat and provides advanced efficency. 
To 2. Yes, the VESC controlls the motor speed. 
To 3. NMEA2K is in this stage of the project not used to controll the system. It only provides system data, like temperatures, to other NMEA2K devices as user information. 
To 4. The controller is the MCU described above. 
To 5. This logic is programmed in the MCU that controlls it all. As I said the brain of the system that controlls and comunicates. 
To 6. See description above. The VESC offers, beside the serial port, a second port, where a servo controller can be used. There is no option on the VESC to be switched on/off by 12V or a Relay, its not designed for this purpose. Please read my more simple aproach below. 

I designed a more simple adapter with a bit less efficency but that does not need the MCU. This adapter is hooked up directly to the E51385 Box at the pump connection instead of the pump. 
The adapter tells the VESC to start /stop the pump and adapts the rpm according to the raw water temperature at the raw water manifold. And provides 24 V to the VESC. I guess this is what most owners prefer without need to change the complete cooling controll. It just replaces the brushed pump by a brushless pump and the brushless motor controller. Problem solved. 

Oliver from Vela Nautica Amel54 #39 
Martinique 

On Wed, Feb 5, 2020, 15:11 CW Bill Rouse <brouse@...> wrote:
Scott, 

You hit the nail on the head. I was ready to shut this thread down when you made your comment. I believe that Oliver Henrichsen is a very good engineer and has a working, unique, and clearly a good solution to an issue that impacts all 54, 55, and possibly 50 & 60 owners. The problem I have with this thread is that the solution is still vague and we have over 60 posts. It seems like a great solution, but we are going nowhere.

Oliver's words and my comments in RED:
  1. He says, "24v batterie directly to the VESC" OK, the new pump motor is running on 24VDC and I assume the Danfoss Controller is no longer used for the water pump.
  2. He says, " The motor/pump speed is open to be controlled from 0 to 100%" I assume by the VESC?      
  3. He says, "My fridge/freezer controller is part of the ship Computer system and connected to NMEA2K bus. The original thermostats are no more used. Instead precise electronic thermometers are in both devices. These still are temperature sensors, or in English, thermostats, and is NMEA2k part of the control system?
  4. He says, "The controller checks on these thermometers and decides about cooling needs." What is the "controller?
  5. He says, "If one unit is above set threshold the controller looks also for the other and if ever possible colls both at the same time. This will further reduce working time of the raw water pump." Is this logic handled by the VESC and does the user set the parameters by connecting to the VESC via the USB connector?
  6. He says,  The controller sends serial commands to the VESC. but the VESC is very versatile so its also possible to regulate it in a simple way."  Again, what is the controller and how is it linked to the VESC
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
   
View My Training Calendar
cloudHQPowered by
cloudHQ


On Wed, Feb 5, 2020 at 12:25 PM Scott SV Tengah <Scott.nguyen@...> wrote:
Jamie,

The output from the Frigoboat E51385 box is 12v. As Bill mentioned, it's the fan controller on the compressor that outputs 12v, seems the Frigoboat box only passes that through.

Not sure if you have the same E51385 box, but if so, we need to figure out a couple of things:

- Can the VESC controller simply get a control input of say, 12v and then output the right voltage/current to run the brushless motor at a specified rpm?
- Is there a 12v motor available?

For the latter, if we can't get a 12v brushless motor that works, we could simply run a hella relay energized by the Frigoboat E51385 box and passthrough 24v. At least on A54 #69, there's a pair of 24v posts right near the chain wash pump.

I went and checked my new Flojet pump today. It's damn hot and the brushes are probably wearing down fast. We need to figure this out before I lose anymore food.

As an aside - Mohammad, what pump model is on your boat? Given that the rest of us A54 owners have experienced 6-12 month pump life, I still believe your longevity is due to your non-tropical, part-time, no freezer use case, perhaps a previous owner of your boat found a pump solution that we can all use.

--
Scott 
2007 A54 #69
SV Tengah
http://www.svtengah.com

Re: A54 fridge circulation pump

Oliver Henrichsen, SV Vela Nautica
 

Hi Bill,

I went out for sailing for the last couple of month and was not able to answer the questions that my thread implied. As there is so much response to this topic and I am a bit more station, I will try to point this topic in the right direction.
I am now on Martinique and helping also other boats with technical issues.

In the following I will give answers to your commented questions.

My (Oliver) statements and Bills comments in red. My (Oliver) answers under it. 

  1. He says, "24v batterie directly to the VESC" OK, the new pump motor is running on 24VDC and I assume the Danfoss Controller is no longer used for the water pump.
  2. He says, " The motor/pump speed is open to be controlled from 0 to 100%" I assume by the VESC?      
  3. He says, "My fridge/freezer controller is part of the ship Computer system and connected to NMEA2K bus. The original thermostats are no more used. Instead precise electronic thermometers are in both devices. These still are temperature sensors, or in English, thermostats, and is NMEA2k part of the control system?
  4. He says, "The controller checks on these thermometers and decides about cooling needs." What is the "controller?
  5. He says, "If one unit is above set threshold the controller looks also for the other and if ever possible colls both at the same time. This will further reduce working time of the raw water pump." Is this logic handled by the VESC and does the user set the parameters by connecting to the VESC via the USB connector?
  6. He says,  The controller sends serial commands to the VESC. but the VESC is very versatile so its also possible to regulate it in a simple way."  Again, what is the controller and how is it linked to the VESC
To 1. To understand the setup you need to know the components used:
a) a 24 V brushless pump, as the name says no wear on brushes like before, only the ballbearings wear and they are easy to change and cost 2 usd. Beside that the original quad pumphead is reused. Most of us got a bag of spares from the old worn pumps. I would go with AMELs 24 V as 12V is a step back and we like to have a well powered pump. 
b) A brushless motor needs a driver. In this case a VESC is used to controll the motor. VESC is short for Vedder Electronic Speed Controller designed by a clever swedish guy as open surce project. Version 3.x will do. 
c) to tell the VESC the speed to spinn the motor and start or stop the motor, I use an Microcontroller (MCU)  that sends serial commands. This MCU replaces in my setup the E51385 box and the thermostats in the fridge/freezer because the MCU can do much more than only switch the motor on / off. Its the brain of the cooling installation on my boat and provides advanced efficency. 
To 2. Yes, the VESC controlls the motor speed. 
To 3. NMEA2K is in this stage of the project not used to controll the system. It only provides system data, like temperatures, to other NMEA2K devices as user information. 
To 4. The controller is the MCU described above. 
To 5. This logic is programmed in the MCU that controlls it all. As I said the brain of the system that controlls and comunicates. 
To 6. See description above. The VESC offers, beside the serial port, a second port, where a servo controller can be used. There is no option on the VESC to be switched on/off by 12V or a Relay, its not designed for this purpose. Please read my more simple aproach below. 

I designed a more simple adapter with a bit less efficency but that does not need the MCU. This adapter is hooked up directly to the E51385 Box at the pump connection instead of the pump. 
The adapter tells the VESC to start /stop the pump and adapts the rpm according to the raw water temperature at the raw water manifold. And provides 24 V to the VESC. I guess this is what most owners prefer without need to change the complete cooling controll. It just replaces the brushed pump by a brushless pump and the brushless motor controller. Problem solved. 

Oliver from Vela Nautica Amel54 #39 
Martinique 

Re: Victron Quattro charger/inverter installation

David Crisp
 

I've been reading through the various threads as I prepare to install solar and LiFePo on my Amel 54 and start ordering the components. It's tremendously helpful so thanks to everyone who has shared their experiences.

I'm just deciding between the Victron Multiplus and Quattro inverter/charger and would like to know why the majority of you appear to go for the Quattro. So far the existing Amel AC source selection system which automatically prioritises generator over shore power seems to work okay. Is it just a question of neatness or are there other reasons please?
--
David Crisp
SV Wilna Grace
Amel 54 #58

Neil Pryde Sails

Gary Silver
 

Good evening everyone:

I am in the market for a new main-sail for my SM SN 335.  I am replacing a Super Sailmakers vertical batten main-sail that has reached the end of it's life.  I had a love hate relationship with that sail.  Joel's recommended sailmaker was Super Sailmakers, Peter Grimm, who has serviced me well with three sails in the past.  Peter now works for North Sails.  I have contacted him for quotes on either a radian cut NorDac or cross cut NorDac main-sail.  Alternatively there is a very highly respected rigger in Puerto Del Rey (PDR) Puerto Rico who I have worked with for almost 5 years now and who is a vendor for Neil Pryde sails.  He has shown me many high end boats at PDR that he has fitted with Neil Pryde sails.  I have been reviewing the literature on these sails.

I would be interest in any feedback from those who have either the North Sail radian or crosscut sails or the Neil Pryde sails. 

Thanks for your wisdom/experience, 

Gary S. Silver
s/v Liahona
Amel SM 2000 # 335
Puerto Del Rey Marina, Fajardo Puerto Rico

Re: A54 fridge circulation pump

Oliver Henrichsen, SV Vela Nautica
 

Hello,

My VESC gets its 24V power from 24V Emgine room point. 
It gets serial bus commands from an ARM32 MCU. 
My system takes temperatures from inside freezer, fridge, compressor fridge, compressor freezer, raw water temperature in its calculation to controll all cooling needs.
It adapts the raw water cooling pump speed according to sea water temperature and compressor temp. 
This might be over kill but provides the most efficient operation. 
As you got already digital controlls you may only like to switch the cooling pump. It would be still possible to adjust the motor speed to raw water temp. 
If you cant setup your own controller I could provide a unit, based on my software, adapted to digital thermostats. 
My unit also writes a protocoll of the operating times of fridge / freezer and temperature curve with alarms. 

Oliver from Vela Nautica Amel54 #39 
Martinique 

On Wed, Feb 5, 2020, 13:54 Jamie Wendell <mysticshadow54@...> wrote:
Oliver, I just ordered the Censored Motor and VESC Controller from AliExpress. I am going to try to hook all this up and see if I can get it to work for my 3-fridge system.
Where did you source your 24-voltage input? What microcontroller did you use for on/off or speed control? I switched my thermostats to digital controls already, so I am no longer using mechanical thermostats.
Any inputs would be good as I await delivery from China. Any wiring schematics or photos you all could share???

I really hope this installation solves this problem once and for all..............

Thanks,
Jamie Wendell A54 Phantom #44

Re: A54 fridge circulation pump

Oliver Henrichsen, SV Vela Nautica
 

Hi Paul,
We will sail up and down the islands and stay along the Westindies with our base on Martinique for this season. 

Oliver from Vela Nautica Amel54 #39 
Martinique 

On Wed, Feb 5, 2020, 10:50 Paul Dowd and Sharon Brown <paul.dowd@...> wrote:

Hi Oliver,

 

We met in Culatra. Welcome to the Caribbean! How long to you plan to stay in Martinique?

 

Cheers,

Paul

S/Y Ya Fohi - Amel 54 #98

 

From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> On Behalf Of Oliver Henrichsen, SV Vela Nautica
Sent: 05 February 2020 07:24
To: main@amelyachtowners.groups.io
Subject: Re: [AmelYachtOwners] A54 fridge circulation pump

 

Hello Carina,

 

Since I changed my fridge cooling to brushless and VESC CONTROLLER we had no pump breakdowns anymore. Now we use it in tropical conditions in the Caribbean and its still working fine.

You will need some kind of setup to switch the Motor on and of.

I use a microcontroller instead of the original Thermostat that regulates also the temperature control of fridge and freezer.

If u need help let me know

I am interested how you get on. 

 

Oliver from Vela Nautica Amel54 

Martinique

 

On Wed, Feb 5, 2020, 04:34 CARINA HAMMARLUND <syultimo@...> wrote:

Thank you Olivier for sharing this info!
We have had lots of problems with the pumps during our 4 year sail in Pacific. Never lasting longer than 5-6 months, sometimes even shorter.

We just ordered the scooter motor and will try your set up! 
--
Carina
SV Ultimo
Amel 54 No 165


--
Cheers
Paul
Ya Fohi - Amel 54 #98

Re: Reefing and sail-handling on conventionally rigged Maramu, versus electric furling?

David Wallace
 

Paul,
Yes our main does have battens. Profurl claims that the slot between the mast and foil creates added lift and thus speed but I can’t attest to that. For us the main advantages of the furling boom are that the main can be reefed off the wind, and of coarse the sail self-stows when lowered. But I just saw the response from Dennis Johns who has much greater experience than I do and I think he gives you a very good answer!

Dave Wallace
sv Air Ops
Maramu #104


On Feb 5, 2020, at 7:46 AM, Paul Villinski <paul@...> wrote:

David, thank you for telling me about your set-up on Air Ops, which sounds like a very good alternative to the Amel motorized, in-mast furling. My understanding is that in-boom furling allows the sail to have some roach, which isn't possible with in-mast furling, as well as battens. I am guessing there is a not insignificant improvement in performance with this arrangement? I've also been fortunate to hear from another owner of a conventionally rigged Maramu via email, and his experience has been nothing but positive -- he makes the case for the simplicity and reliability of the standard rig. 

Re: Gas struts for windscreens

Paul Dowd and Sharon Brown
 

I got some from geminigassprings.com in Canada for Canadian $48.72 each. The part is 8/19 100-303/150N 3.94-11.90/34Lbs E8N/E8N.

 

If when I take delivery I find any problem I will post again.

 

Cheers,

Paul

S/Y Ya Fohi - Amel 54 #98

 

From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> On Behalf Of Sv Garulfo
Sent: 05 February 2020 15:27
To: main@amelyachtowners.groups.io
Subject: Re: [AmelYachtOwners] Gas struts for windscreens

 

Hello,

 

 

We got ours from alrose UK. We chose slightly different dimensions because they were off the shelf ones, thus better lead time and price. 

 

Happy with the results; hopefully they’ll last 10 years (wishful thinking).

 

product code : 08S18S0100024500

Description: GS8 18 P 100 (Stroke) 283 (Centre to Centre) V AS1900/AS1900 150N

Stainless Steel Polished Compression Gas Spring with Eye Joints

 

About £55 each

 

 

 

Hope that helps

 

Thomas

GARULFO 

A54-122

Nuku Hiva, Marquesas, French Polynesia 

 


On 3 Feb 2020, at 08:25, Courtney Gorman via Groups.Io <Itsfun1@...> wrote:

Hi paul I bought mine from Defender Marine 

If you want to replace them because they’re stuck and closed soap them in a bottle of Coca-Cola for 24 hours then hold them and hit the moving in on top with a hammer and it should come free after a couple of hard blows



On Feb 3, 2020, at 1:03 PM, Paul Dowd and Sharon Brown <paul.dowd@...> wrote:



Hi all,

 

I would greatly appreciate if someone could tell me where in the USA I can order replacement gas struts for the Amel 54 windscreens. I was about to go with a company called Ace Controls but it turned out there is an 8 week lead time for the stainless version.

 

Cheers,

Paul

S/Y Ya Fohi - Amel 54 #98

 


--
Cheers
Paul
Ya Fohi - Amel 54 #98


--
Cheers
Paul
Ya Fohi - Amel 54 #98

Re: Selling an Amel Mango

Ivica Curlica
 

What is your asking price? 

sri, 5. velj 2020. 15:37 Arnold Mente via Groups.Io <Arnold.mente=me.com@groups.io> je napisao:

Hi Frederic,

I would recommend Michel Carpentier, he is selling only Amel!! 

Best

Arnold
SY Zephyr
SM 203


Am 05.02.2020 um 14:53 schrieb Frederic F <fgf@...>:

Hi everyone,

we intend to sell our 1980 Amel Mango after 26 years of ownership. The boat is located in croatia and we are now not sure whats the best way to sell the boat. Does anyone of you have any tips for us?

Thank you in advance.

All the best
Frederic



--
SY Zephyr SM203

Re: Selling an Amel Mango

Ivica Curlica
 

Sorry it is too big for me alone. 

sri, 5. velj 2020. 23:13 Ivica Curlica <ivica.curlica@...> je napisao:

What is your asking price? 

sri, 5. velj 2020. 15:37 Arnold Mente via Groups.Io <Arnold.mente=me.com@groups.io> je napisao:
Hi Frederic,

I would recommend Michel Carpentier, he is selling only Amel!! 

Best

Arnold
SY Zephyr
SM 203


Am 05.02.2020 um 14:53 schrieb Frederic F <fgf@...>:

Hi everyone,

we intend to sell our 1980 Amel Mango after 26 years of ownership. The boat is located in croatia and we are now not sure whats the best way to sell the boat. Does anyone of you have any tips for us?

Thank you in advance.

All the best
Frederic



--
SY Zephyr SM203

Re: Watermaker motor

Sv Garulfo
 

Hello 

There are 4 brushes on the motor. They are held in place by rubber covers that you unscrew. 
I find it easier to bring the motor out of the engine room to work on the brushes. 

I cleaned the carbon dust twice in the space of a couple of weeks and eventually replaced the brushes. Looking at the new ones, I noticed the old ones were slightly cracked lengthways, which could have explained why they wouldn’t slide so freely in their housing and would eventually lose conductivity. I guess i could have sanded them down a little to fix the issue. 

We sourced the brushes here:
vendite@...

Product code SP1812MC50

They’re not cheap (about €15 each) and they had a minimum order of €180 and would only
ship dhl which was €60. The company was a bit of a pain to work with, as they usually only work with companies, not individuals. 

We got a discount for ordering 3 sets of 4 brushes n springs, and still have a spare one.


Hope that helps

Thomas
GARULFO
A54-122
Nuku Hiva, Marquesas, French Polynesia 




On 4 Feb 2020, at 13:24, ofer magen <ofermagen@...> wrote:

Hallo,
I have the same problem now with the 24v motor not working.
Can you please explain where the brushes are and how to remove them?
Thanks, 
Ofer
SV Alba
Amel 54 #160
Cyprus 

Re: Reefing and sail-handling on conventionally rigged Maramu, versus electric furling?

Wade Shikoski
 

Dennis, 
Do you have a picture of how you have run your lines. Would be very interested in seeing specifically how you have this setup. 
Thanks!

wade
Maramu #124

Re: Gas struts for windscreens

Sv Garulfo
 

Hello,


We got ours from alrose UK. We chose slightly different dimensions because they were off the shelf ones, thus better lead time and price. 

Happy with the results; hopefully they’ll last 10 years (wishful thinking).

product code : 08S18S0100024500
Description: GS8 18 P 100 (Stroke) 283 (Centre to Centre) V AS1900/AS1900 150N
Stainless Steel Polished Compression Gas Spring with Eye Joints

About £55 each



Hope that helps

Thomas
GARULFO 
A54-122
Nuku Hiva, Marquesas, French Polynesia 


On 3 Feb 2020, at 08:25, Courtney Gorman via Groups.Io <Itsfun1@...> wrote:

Hi paul I bought mine from Defender Marine 
If you want to replace them because they’re stuck and closed soap them in a bottle of Coca-Cola for 24 hours then hold them and hit the moving in on top with a hammer and it should come free after a couple of hard blows


On Feb 3, 2020, at 1:03 PM, Paul Dowd and Sharon Brown <paul.dowd@...> wrote:



Hi all,

 

I would greatly appreciate if someone could tell me where in the USA I can order replacement gas struts for the Amel 54 windscreens. I was about to go with a company called Ace Controls but it turned out there is an 8 week lead time for the stainless version.

 

Cheers,

Paul

S/Y Ya Fohi - Amel 54 #98

 


--
Cheers
Paul
Ya Fohi - Amel 54 #98

Re: Reefing and sail-handling on conventionally rigged Maramu, versus electric furling?

sbmesasailor
 

Hi Paul,

If you have been reading this site for a while, you will have seen entries regarding the repair/maintenance of the motors and/or rigging of the electrical furling systems.  Don't get me wrong, this is not specific to Amels, it's just that the marine environment is very hard on electronics in general.

For this reason, I swapped out the genoa electric furler on my 1982 Maramu for a manual one.  After almost 20 years and a trip around the world, I haven't touched it other than to furl or unfurl the sail.

Before we left on our world tour, I routed the mail halyard, the first and second reefing lines, and a boom vang back to the cockpit and installed clutches (three on each side of the cockpit dash) and two winches (one on each side).  Obviously the benefit of this rigging is the absence of electric furling and that it's so convenient to reef the main, that I would always reef the minute it seemed appropriate.

If you decide to go this way (as was stated in another entry) you must be very careful boring holes through the dodger as the dash gauges have their cables running through the area you will be boring through.

Dennis Johns
Libertad
Maramu #121

Re: A54 fridge circulation pump

 

Scott, 

You hit the nail on the head. I was ready to shut this thread down when you made your comment. I believe that Oliver Henrichsen is a very good engineer and has a working, unique, and clearly a good solution to an issue that impacts all 54, 55, and possibly 50 & 60 owners. The problem I have with this thread is that the solution is still vague and we have over 60 posts. It seems like a great solution, but we are going nowhere.

Oliver's words and my comments in RED:
  1. He says, "24v batterie directly to the VESC" OK, the new pump motor is running on 24VDC and I assume the Danfoss Controller is no longer used for the water pump.
  2. He says, " The motor/pump speed is open to be controlled from 0 to 100%" I assume by the VESC?      
  3. He says, "My fridge/freezer controller is part of the ship Computer system and connected to NMEA2K bus. The original thermostats are no more used. Instead precise electronic thermometers are in both devices. These still are temperature sensors, or in English, thermostats, and is NMEA2k part of the control system?
  4. He says, "The controller checks on these thermometers and decides about cooling needs." What is the "controller?
  5. He says, "If one unit is above set threshold the controller looks also for the other and if ever possible colls both at the same time. This will further reduce working time of the raw water pump." Is this logic handled by the VESC and does the user set the parameters by connecting to the VESC via the USB connector?
  6. He says,  The controller sends serial commands to the VESC. but the VESC is very versatile so its also possible to regulate it in a simple way."  Again, what is the controller and how is it linked to the VESC
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
   
View My Training Calendar
cloudHQPowered by
cloudHQ


On Wed, Feb 5, 2020 at 12:25 PM Scott SV Tengah <Scott.nguyen@...> wrote:
Jamie,

The output from the Frigoboat E51385 box is 12v. As Bill mentioned, it's the fan controller on the compressor that outputs 12v, seems the Frigoboat box only passes that through.

Not sure if you have the same E51385 box, but if so, we need to figure out a couple of things:

- Can the VESC controller simply get a control input of say, 12v and then output the right voltage/current to run the brushless motor at a specified rpm?
- Is there a 12v motor available?

For the latter, if we can't get a 12v brushless motor that works, we could simply run a hella relay energized by the Frigoboat E51385 box and passthrough 24v. At least on A54 #69, there's a pair of 24v posts right near the chain wash pump.

I went and checked my new Flojet pump today. It's damn hot and the brushes are probably wearing down fast. We need to figure this out before I lose anymore food.

As an aside - Mohammad, what pump model is on your boat? Given that the rest of us A54 owners have experienced 6-12 month pump life, I still believe your longevity is due to your non-tropical, part-time, no freezer use case, perhaps a previous owner of your boat found a pump solution that we can all use.

--
Scott 
2007 A54 #69
SV Tengah
http://www.svtengah.com

Re: A54 fridge circulation pump

Jamie Wendell
 

Matt, I agree with you the term "once and for all" is a relative term, but I like to think on the good side - that it will significantly improve what I have right now. Or at least I will have "fun" trying out something new and different. 13 years is a good "once and for all" for me at this point!!!

Scott, the motor I ordered is 22-48 volts, so will presumably require 24 volts input. I don't see a 12-volt version, but have not looked extensively.

I might be able to output 24 volts from the VESC controller, but I really need to get all these things and start experimenting.

If all else fails, I can simply convert to 24 volts at the pump interface in the blue box. I do that in other cases (both up and down) on the boat anyway. And yes, I have that same blue box now. Or I can use a simple relay, as you point out - easy to do with the 24-volt supply in the engine room.

Let me see what I can find out once I get delivery.

Thanks,
Jamie
A54 Phantom #44

Re: A54 fridge circulation pump

Matt Salatino
 

Solving a problem once and for all? On a cruising sailboat? Good luck! Of course you will delay the inevitable. I switched from CAL pumps for my ac unit (3 in 5 years) to a March Pump. The March pump lasted 13 years.

~~~⛵️~~~Matt

On Feb 5, 2020, at 12:53 PM, Jamie Wendell <mysticshadow54@...> wrote:

Oliver, I just ordered the Censored Motor and VESC Controller from AliExpress. I am going to try to hook all this up and see if I can get it to work for my 3-fridge system.
Where did you source your 24-voltage input? What microcontroller did you use for on/off or speed control? I switched my thermostats to digital controls already, so I am no longer using mechanical thermostats.
Any inputs would be good as I await delivery from China. Any wiring schematics or photos you all could share???

I really hope this installation solves this problem once and for all..............

Thanks,
Jamie Wendell A54 Phantom #44

Re: A54 fridge circulation pump

Scott SV Tengah
 

Jamie,

The output from the Frigoboat E51385 box is 12v. As Bill mentioned, it's the fan controller on the compressor that outputs 12v, seems the Frigoboat box only passes that through.

Not sure if you have the same E51385 box, but if so, we need to figure out a couple of things:

- Can the VESC controller simply get a control input of say, 12v and then output the right voltage/current to run the brushless motor at a specified rpm?
- Is there a 12v motor available?

For the latter, if we can't get a 12v brushless motor that works, we could simply run a hella relay energized by the Frigoboat E51385 box and passthrough 24v. At least on A54 #69, there's a pair of 24v posts right near the chain wash pump.

I went and checked my new Flojet pump today. It's damn hot and the brushes are probably wearing down fast. We need to figure this out before I lose anymore food.

As an aside - Mohammad, what pump model is on your boat? Given that the rest of us A54 owners have experienced 6-12 month pump life, I still believe your longevity is due to your non-tropical, part-time, no freezer use case, perhaps a previous owner of your boat found a pump solution that we can all use.

--
Scott 
2007 A54 #69
SV Tengah
http://www.svtengah.com

Re: washing machine and dryer for Amel 54

Scott SV Tengah
 

I installed the Beko WTE6511BW. It barely fits but the advantage is that has a 6kg load capacity, bigger than the original Bosch.

A few notes:

1) To secure from the rear, there are two holes where the "shipping plugs" fit. These match up nearly to the horizontal Amel wooden brace that runs fore-aft. We drilled two holes in the wood, put a long bolt in there and put appropriate washers on the port side of the wood brace and then gingerly put washers on the inside of the back panel of the washer and put a nut there. Access to the inside is possible via the service panel. 

We also added some wood shims below the front feet of the washer, aka the starboard edge of the washer. The boatyard initially just shoved it in when I was busy working with another contractor on another part of the boat so I didn't realize they didn't secure it. Only after the machine fell out at a 45 degree angle while sailing upwind did I spend the day or two securing it properly!

2) We need to run it at 600rpm spin cycle. Any more and the spinning drum will sometimes hit the case for the first few seconds of the spin cycle.

In any event, we've run it for 2 years, at least 2x a week and we're very happy with it. The Eco 40degC cycle is perfect in our experience.


--
Scott 
2007 A54 #69
SV Tengah
http://www.svtengah.com

Re: A54 fridge circulation pump

Jamie Wendell
 

Oliver, I just ordered the Censored Motor and VESC Controller from AliExpress. I am going to try to hook all this up and see if I can get it to work for my 3-fridge system.
Where did you source your 24-voltage input? What microcontroller did you use for on/off or speed control? I switched my thermostats to digital controls already, so I am no longer using mechanical thermostats.
Any inputs would be good as I await delivery from China. Any wiring schematics or photos you all could share???

I really hope this installation solves this problem once and for all..............

Thanks,
Jamie Wendell A54 Phantom #44