Date   

Re: Cruise and Max RPM #solution

 

Marco,

I attached a page from my Amel Book which my answer your question. If not, email me at brouse@...

Best,

Bill
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Sun, Jul 5, 2020 at 4:46 PM Marco Mancini <marcomancini61@...> wrote:
Bill it is nice to have your comment . 
I have to check for this .
What do you mean ? I think I don’t have sufficient knoweldge about your question.  May please provide me additiional info ? 
as you may image we carry 2 alternators one for the 12 volt engine / onan battery charger ant another one at 24 volt for the other batteries. 
cheers 


Il giorno 05 lug 2020, alle ore 21:30, CW Bill Rouse <brouse@...> ha scritto:

Did your mechanic Isolate the 12-volt negative? 
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Sun, Jul 5, 2020 at 1:10 PM karkauai via groups.io <karkauai=yahoo.com@groups.io> wrote:
Hi Marco,
Are you still using the AutoProp H6 with the new engine?  If yes, did you have it modified in any way?

Thanks,
Kent
SM 243
Kristy

On Jul 5, 2020 1:18 PM, Marco Mancini <marcomancini61@...> wrote:
dears,

the TMD22 with the mechanical gearbox (2,8 reduction factor) and the autoprop h6 was probably  never reached in our 20 years of SM  more than 2500 2600 rpm ,
The TMD22 engine characteristic curve show that the 78 hp ( the max power) is obtained at 3500 - 4200 rpm  but at 2500 the curve show 40 hp and the boat has never reached more than 7.5 knots 
Now we have moved to the yanmar 110 cv,  the new version of the yanmar 100) with gearbox with 2.3 rduction factor   (midway betwenn the 1.97 of amel 54 with 110 volvo and  2.8 of the yanmar 100 )  that is  the new version  of the well known  Yanmar 100 cv  installed by Amel  after the TMD22. In Italy due to a severe restrictions of  omologation certificate we had also to afford the cost of new homologation certificate but we hare happy with this change . indeed the boat seems to go much better, it has a cruise speed of 8,5  at 2300 rpm over 3200rpm ( max engine regime)  and also in the manoeuvres she is more prompt than before . 
cheers and good wind . 
marco mancini 
SM 304 




Il giorno 25 giu 2020, alle ore 16:55, Thomas Peacock <peacock8491@...> ha scritto:

This is question without a definitive answer. 
We also have the TMD22. When we bought our boat (about 4 years used), we could get almost 3,000 rpm at max throttle. Our local diesel guy suggested cruising at 80% of max, or 2,400. Our max started to lessen within about a year. 
Ever since then, we have usually not been able to max out at 3,000. Usually max is 2,400 to 2,600, so we cruise at 80% of that.
Issues affecting max cruise rpm include bottom, prop (even one barnacle can make a difference), turbo condition, and countless others. 
I suppose that, just like me, the Volvo has also lost a little mojo as it has aged. 

Tom Peacock
SM 240 Aletes
Chesapeake Bay

with its tiny keyboard

On Jun 25, 2020, at 10:10 AM, JOSE PRIETO <prietomd11@...> wrote:

Hello Amelians!  I am in the process of learning my boat.  The engine is a Volvo TMD22, with autoprop h6 propeller.
I found some threads here on the forum related to this topic, but none conclusive about what is the ideal cruise rpm regime, and what is the maximum rpm?  I can't get more than 2100 rpm!
 Any suggestion?

--
Jose Prieto
SV Wayag, SM 323
Currently Alicante, Spain






Re: Cruise and Max RPM #solution

JOSE PRIETO
 

Guys,

Once again I would like to thank all the opinions.
I removed the turbo from my boat and took it to a specialized workshop, which did a review and decarbonization. Now the engine easily reaches over 3,000 rpm.
Its great to own an Amel, but having a backup from this group its fantastic.

Cheers
--
Jose Prieto
SV Wayag, SM 323
Currently Alicante, Spain


Re: Santorin Bow Thruster/genoa furler breaker.

ste.dente
 

Hi Yan, 
my Santorin # 93 has a “ disruptor “ for furled and bow truster. I will send you a photo next week, when I will come back onboard. 
Have a nice time

Stefania Dente
SN # 93 Euploia
Bocca di Magra
Italy

Il giorno 11 lug 2020, alle ore 03:27, Craig & Katherine Briggs SN 68 Sangaris Tropic Isle Harbor, FL via groups.io <sangaris@...> ha scritto:

Ian,
On our SN (#68) the bow thruster and Foc furler are hard wired with no fuse or circuit breaker (diruptor). Real men don't need them ;-)
The 100amp fuse (mine is Blue Seas pop-up breaker style) is for the anchor windlass.

The main 12v power only kills power to the relay switches at the helm (same as turning off the "joy stick" breaker on the main DC panel). So when you say turning that off still left the BT and furler live, you were probing at the BT solenoid line terminals (not load), right, and the solenoids were actually inoperable from the helm switches. That seems safe enough, that is, you couldn't accidentally operate them from the helm. 

If you want to actually kill the power to the bow thruster and furler, just turn off your main battery switch - remote twist handle in the port cockpit lazarette locker, next to the helm.  If you have a fuse in the main battery feed, that's your safety for a dead short at the furler/bow thruster. If not you'll have one heck of a cabin heater. 

Cheers, Craig 


SM plumbing under the ink.

eric freedman
 

Here is  a photo of some of the plumbing under the sink of the SM.

Fair winds,

Eric

sm376


Re: Is there a valve for the water intake for the washing machine?

karkauai
 

Thanks, Bill.
Kent

On Jul 12, 2020 9:31 PM, CW Bill Rouse <brouse@...> wrote:
The SM does not have any PEX fittings. Amel started PEX with the 54
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Sun, Jul 12, 2020 at 6:58 PM karkauai via groups.io <karkauai=yahoo.com@groups.io> wrote:
Thanks Danny and Bill.  I'll look under the stove, don't think I have ever been in there.

Are the piping to the sinks all PEX fittings?  Anybody know the size of the fittings?

Kent
SM243
Kristy

On Jul 12, 2020 2:30 PM, Danny and Yvonne SIMMS <simms@...> wrote:

Hi Bill and Kent.

SM 299 has a shut off valves for both the washing machine and the dishwasher below and behind the stove.

Regards

Danny

SM 299

Ocean Pearl

Mangonui New Zealand

On 13 July 2020 at 02:32 CW Bill Rouse <brouse@...> wrote:

Kent,

I purposefully said, " Later model SM2ks had the following (photo from the Users Manual)"

I have no idea when the cut-off valve was added by Amel, but I have seen some SMs that did not have one.

Bill
CW Bill Rouse Amel Owners Yacht School
 
+1 832-380-4970 | brouse@...
Address: 720 Winnie, Galveston Island, Texas 77550 
 
View My Training Calendar


On Sun, Jul 12, 2020 at 9:13 AM karkauai via groups.io <karkauai= yahoo.com@groups.io> wrote:
Along the same lines, I had a sink faucet fail last year, and had no way to shut water off to one faucet.  On my list is to put a shutoff valve on every faucet.  I didn't know there was a shutoff valve for the washer.  Gotta find that.

Kent
Sm243
Kristy

On Jul 11, 2020 1:23 PM, Willem Kroes < kavanga@...> wrote:
Thank you Bill,

I found the valve behind the cleaning stuff. I did not expect it on this side,but must admid that I failed to consult the manual.

Anyway, the problem is solved (also with the water intake valve at the washing machine side).

I am very happyt to be on my boat again after so many months of lock down. The Greek authorities made a great leap foreward with their digital system. There are also some very reliable Greek websites for updates on the Covid-19-situation in Greece, like this one:
https://www.atoz-guides.com/coronavirus-in-greece-update/

Thanks again and stay healthy!

Willem Kroes

SM#351 KAVANGA

now at anchor near Menidion Greece

 

 




Re: Is there a valve for the water intake for the washing machine?

 

The SM does not have any PEX fittings. Amel started PEX with the 54
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Sun, Jul 12, 2020 at 6:58 PM karkauai via groups.io <karkauai=yahoo.com@groups.io> wrote:
Thanks Danny and Bill.  I'll look under the stove, don't think I have ever been in there.

Are the piping to the sinks all PEX fittings?  Anybody know the size of the fittings?

Kent
SM243
Kristy

On Jul 12, 2020 2:30 PM, Danny and Yvonne SIMMS <simms@...> wrote:

Hi Bill and Kent.

SM 299 has a shut off valves for both the washing machine and the dishwasher below and behind the stove.

Regards

Danny

SM 299

Ocean Pearl

Mangonui New Zealand

On 13 July 2020 at 02:32 CW Bill Rouse <brouse@...> wrote:

Kent,

I purposefully said, " Later model SM2ks had the following (photo from the Users Manual)"

I have no idea when the cut-off valve was added by Amel, but I have seen some SMs that did not have one.

Bill
CW Bill Rouse Amel Owners Yacht School
 
+1 832-380-4970 | brouse@...
Address: 720 Winnie, Galveston Island, Texas 77550 
 
View My Training Calendar


On Sun, Jul 12, 2020 at 9:13 AM karkauai via groups.io <karkauai= yahoo.com@groups.io> wrote:
Along the same lines, I had a sink faucet fail last year, and had no way to shut water off to one faucet.  On my list is to put a shutoff valve on every faucet.  I didn't know there was a shutoff valve for the washer.  Gotta find that.

Kent
Sm243
Kristy

On Jul 11, 2020 1:23 PM, Willem Kroes < kavanga@...> wrote:
Thank you Bill,

I found the valve behind the cleaning stuff. I did not expect it on this side,but must admid that I failed to consult the manual.

Anyway, the problem is solved (also with the water intake valve at the washing machine side).

I am very happyt to be on my boat again after so many months of lock down. The Greek authorities made a great leap foreward with their digital system. There are also some very reliable Greek websites for updates on the Covid-19-situation in Greece, like this one:
https://www.atoz-guides.com/coronavirus-in-greece-update/

Thanks again and stay healthy!

Willem Kroes

SM#351 KAVANGA

now at anchor near Menidion Greece

 

 



Re: New Thread on A54 fridge pumps (ATTN: OLIVER Vela Nautica)

 

Dean,
They are rated at 30amps at 12 volts, I think they will handle a lot more amps than wll be needed at 24.
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Sun, Jul 12, 2020 at 5:30 PM Dean Gillies <stella@...> wrote:
Bill,
That's a nicely packaged set. I like the fixed leads which makes Porter's task easier.
I am 99.9% certain that they will work just fine as you describe.
The 0.1% risk: I could not find any documented specifications indicating that they are rated for switching 24V. Maybe you've seen that somewhere?
Cheers
Dean

X




Re: Is there a valve for the water intake for the washing machine?

karkauai
 

Thanks Danny and Bill.  I'll look under the stove, don't think I have ever been in there.

Are the piping to the sinks all PEX fittings?  Anybody know the size of the fittings?

Kent
SM243
Kristy

On Jul 12, 2020 2:30 PM, Danny and Yvonne SIMMS <simms@...> wrote:

Hi Bill and Kent.

SM 299 has a shut off valves for both the washing machine and the dishwasher below and behind the stove.

Regards

Danny

SM 299

Ocean Pearl

Mangonui New Zealand

On 13 July 2020 at 02:32 CW Bill Rouse <brouse@...> wrote:

Kent,

I purposefully said, " Later model SM2ks had the following (photo from the Users Manual)"

I have no idea when the cut-off valve was added by Amel, but I have seen some SMs that did not have one.

Bill
CW Bill Rouse Amel Owners Yacht School
 
+1 832-380-4970 | brouse@...
Address: 720 Winnie, Galveston Island, Texas 77550 
 
View My Training Calendar


On Sun, Jul 12, 2020 at 9:13 AM karkauai via groups.io <karkauai= yahoo.com@groups.io> wrote:
Along the same lines, I had a sink faucet fail last year, and had no way to shut water off to one faucet.  On my list is to put a shutoff valve on every faucet.  I didn't know there was a shutoff valve for the washer.  Gotta find that.

Kent
Sm243
Kristy

On Jul 11, 2020 1:23 PM, Willem Kroes < kavanga@...> wrote:
Thank you Bill,

I found the valve behind the cleaning stuff. I did not expect it on this side,but must admid that I failed to consult the manual.

Anyway, the problem is solved (also with the water intake valve at the washing machine side).

I am very happyt to be on my boat again after so many months of lock down. The Greek authorities made a great leap foreward with their digital system. There are also some very reliable Greek websites for updates on the Covid-19-situation in Greece, like this one:
https://www.atoz-guides.com/coronavirus-in-greece-update/

Thanks again and stay healthy!

Willem Kroes

SM#351 KAVANGA

now at anchor near Menidion Greece

 

 



Re: New Thread on A54 fridge pumps (ATTN: OLIVER Vela Nautica)

Dean Gillies
 

Porter,
I like your thinking re BP analogy.
If we take that further... as we can measure arterial flow with Doppler ultrasound techniques, we could use a simple flow meter installed beside the pump to monitor flow rate on an ongoing basis.

I love how this thread has meandered from hydraulics and electrics through thermodynamics and medicine. All relevant and all interesting!

Cheers,
Dean
SY Stella
A54-154

Sent from my iPhone X


Re: New Thread on A54 fridge pumps (ATTN: OLIVER Vela Nautica)

Dean Gillies
 

Bill,
That's a nicely packaged set. I like the fixed leads which makes Porter's task easier.
I am 99.9% certain that they will work just fine as you describe.
The 0.1% risk: I could not find any documented specifications indicating that they are rated for switching 24V. Maybe you've seen that somewhere?
Cheers
Dean

Sent from my iPhone X


Stove igniter replacement

 

I previously had a source for the exact replacement of the igniter for Eno stoves needing 6 outlets (4 burners + 2 oven burners).

If you are adventurous and want to try something with little risk, let me know if this will work:
https://www.ebay.com/itm/Universal-BBQ-Gas-Grill-6-Outlet-Spark-Generator-Push-Button-Igniter-AA-Battery-/153027190899 

It ships from Hong Kong and is only about $13.60 delivered in the US. 
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


Re: New Thread on A54 fridge pumps (ATTN: OLIVER Vela Nautica)

Porter McRoberts
 

Thank you Bill. 
That makes it very clear. Time to head to one of my favorite spots: McDonalds Hardware. 
Appreciated!!
Porter 
A54-152. 

Excuse the errors.  
Sent from my IPhone 
Www.fouribis.net

On Jul 12, 2020, at 10:31 AM, CW Bill Rouse <brouse@...> wrote:


Porter, 

According to Frigoboat, the pump selected should move at least 6 liters/min. A 24-volt pump rated at 12 liters/min. running half speed on 12 volts will pump about 6 liters/min.

I am not the electrical expert that Dean Gillis is, but I will try to answer your question. In this schematic, the relay has a 12-volt coil that activates an internal switch. The switch could switch either 12 volts or 24 volts. In the schematic, you will note that only the positive is switched. Dean, feel free to edit or correct.

That relay in the schematic is a very ordinary "Bosch style" normally open 4 pin relay which uses 2 pins (85 & 86) to activate the coil, meaning when 12 volt positive is connected to 85 and 12 volt negative is connected to 86, a switch is closed between 2 pins (30 & 87). There are 2 types of 4 pin relay available; normally open or normally closed. A normally open relay will switch power ON for a circuit when the coil is activated. A normally closed relay will switch power OFF for a circuit when the coil is activated. You want a normally open relay for this project. To further confuse, there are 5 pin relays which allow either normally open or normally closed depending on whether you use 87 (normally open) or the fifth pin 87a (normally closed).


<image.png>

CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Thu, Jul 9, 2020 at 4:27 PM Porter McRoberts via groups.io <portermcroberts=yahoo.com@groups.io> wrote:
Bill in your schematic,
The relays are 12VDC control and 24VDC load circuit, easy to put a 2-3 amp fuse on the load circuit.
I've searched for this relay and find it quite difficult to find the definitive solution.  Commonly the reverse is found.
I’d like to build a control board for the pumps.
Might you have a source, or nomenclature that would reveal this hidden gem on the web for me?

A second question:  running a 24v pump at 12v, surely spares the pump, but will it affect the pump volume, as the 1.5+ GPH is quite important, yes?

Always appreciated,

Porter
S/V IBIS A54-152

On Jul 3, 2020, at 3:30 PM, CW Bill Rouse <brouse@...> wrote:

Jamie,

I wish I was on your 54 with you because I have a burning question about all of this. and I have a recommendation for you.

My burning question:
If you see the schematic in my previous post in this thread, you will notice the schematic from a Frigoboat manual. The source of the voltage output from the E51385 blue box to the water pump originates in this schematic with each of the Danfoss Compressor Controllers at the F terminal. In fact, the two wires for each fridge unit come directly from the Danfoss to the E51385. The Frigoboat manual clearly states, regardless of the voltage of the fridge the output on the two F terminals is 12 volts. BTW, the Danfoss operates on 12 or 24 volts, but always outputs 12 volts to Terminal F. Have you checked the output voltage on each of the Danfoss on terminal F and the terminal next to it? I do not see any other way that the E51385 blue box can output 24 volts and if there is 24 volts on the Danfoss fan terminals, I suspect something is wrong with the Danfoss.

My recommendation:
Why don't you do this eliminating the E51385 and eliminate the limitation on amps on the Danfoss terminal F, and run a 24-volt pump??:
<Relays to control water pump.jpg>
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Fri, Jul 3, 2020 at 2:02 PM Jamie Wendell <mysticshadow54@...> wrote:
OK, my "final" update on the Flojet pump and Frigoboat E51385  interface. I cannot explain it, but the interface is definitely out-putting 24 volts to the pump at all times.
Maybe my interface is malfunctioning, so I installed a solid-state relay and a DC converter to step the voltage down to 12 volts. I used a 24-volt relay in place of the E
51385 pump connection and then feed the converter and pump via the live 24-volt terminal box in the engine room. The relay simply engages the pump when the compressors call for it.

A bit more complicated than I would like but the pump runs perfectly now and obviously I no longer get the pump overload signals at the interface. The higher capacity pump may draw more power, but it really cools down the 3 refrigerator units fast.

My next task is to get the brushless motor working to replace the Flojet motor. I will drive it directly via the 24-volt terminal block and eliminate the DC converter.

Until then I am "over and out" regarding this perplexing issue with the E
51385. I really appreciate all the suggestions and assistance, but will report once I have the brushless motor controller operational. That will be the gold standard.

Jamie
Phantom, A54 #44




Re: Is there a valve for the water intake for the washing machine?

Danny and Yvonne SIMMS
 

Hi Bill and Kent.

SM 299 has a shut off valves for both the washing machine and the dishwasher below and behind the stove.

Regards

Danny

SM 299

Ocean Pearl

Mangonui New Zealand

On 13 July 2020 at 02:32 CW Bill Rouse <brouse@...> wrote:

Kent,

I purposefully said, " Later model SM2ks had the following (photo from the Users Manual)"

I have no idea when the cut-off valve was added by Amel, but I have seen some SMs that did not have one.

Bill
CW Bill Rouse Amel Owners Yacht School
 
Address: 720 Winnie, Galveston Island, Texas 77550 
 
View My Training Calendar


On Sun, Jul 12, 2020 at 9:13 AM karkauai via groups.io <karkauai= yahoo.com@groups.io> wrote:
Along the same lines, I had a sink faucet fail last year, and had no way to shut water off to one faucet.  On my list is to put a shutoff valve on every faucet.  I didn't know there was a shutoff valve for the washer.  Gotta find that.

Kent
Sm243
Kristy

On Jul 11, 2020 1:23 PM, Willem Kroes < kavanga@...> wrote:
Thank you Bill,

I found the valve behind the cleaning stuff. I did not expect it on this side,but must admid that I failed to consult the manual.

Anyway, the problem is solved (also with the water intake valve at the washing machine side).

I am very happyt to be on my boat again after so many months of lock down. The Greek authorities made a great leap foreward with their digital system. There are also some very reliable Greek websites for updates on the Covid-19-situation in Greece, like this one:
https://www.atoz-guides.com/coronavirus-in-greece-update/

Thanks again and stay healthy!

Willem Kroes

SM#351 KAVANGA

now at anchor near Menidion Greece

 

 


A 55 # 9 : Chargeing and mastershunts

Stuart Hemingway
 

Can anyone advise why there are two 500A Mastershunts installed at the outset.
We see that only one Mastershunt is configured and visible on the monitor.
The second does not appear to be visible


Re: Is there a valve for the water intake for the washing machine?

 

Kent,

I purposefully said, "Later model SM2ks had the following (photo from the Users Manual)"

I have no idea when the cut-off valve was added by Amel, but I have seen some SMs that did not have one.

Bill
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Sun, Jul 12, 2020 at 9:13 AM karkauai via groups.io <karkauai=yahoo.com@groups.io> wrote:
Along the same lines, I had a sink faucet fail last year, and had no way to shut water off to one faucet.  On my list is to put a shutoff valve on every faucet.  I didn't know there was a shutoff valve for the washer.  Gotta find that.

Kent
Sm243
Kristy

On Jul 11, 2020 1:23 PM, Willem Kroes <kavanga@...> wrote:
Thank you Bill,

I found the valve behind the cleaning stuff. I did not expect it on this side,but must admid that I failed to consult the manual.

Anyway, the problem is solved (also with the water intake valve at the washing machine side).

I am very happyt to be on my boat again after so many months of lock down. The Greek authorities made a great leap foreward with their digital system. There are also some very reliable Greek websites for updates on the Covid-19-situation in Greece, like this one:
https://www.atoz-guides.com/coronavirus-in-greece-update/

Thanks again and stay healthy!

Willem Kroes

SM#351 KAVANGA

now at anchor near Menidion Greece


Re: New Thread on A54 fridge pumps (ATTN: OLIVER Vela Nautica)

 

Porter, 

According to Frigoboat, the pump selected should move at least 6 liters/min. A 24-volt pump rated at 12 liters/min. running half speed on 12 volts will pump about 6 liters/min.

I am not the electrical expert that Dean Gillis is, but I will try to answer your question. In this schematic, the relay has a 12-volt coil that activates an internal switch. The switch could switch either 12 volts or 24 volts. In the schematic, you will note that only the positive is switched. Dean, feel free to edit or correct.

That relay in the schematic is a very ordinary "Bosch style" normally open 4 pin relay which uses 2 pins (85 & 86) to activate the coil, meaning when 12 volt positive is connected to 85 and 12 volt negative is connected to 86, a switch is closed between 2 pins (30 & 87). There are 2 types of 4 pin relay available; normally open or normally closed. A normally open relay will switch power ON for a circuit when the coil is activated. A normally closed relay will switch power OFF for a circuit when the coil is activated. You want a normally open relay for this project. To further confuse, there are 5 pin relays which allow either normally open or normally closed depending on whether you use 87 (normally open) or the fifth pin 87a (normally closed).


image.png
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Thu, Jul 9, 2020 at 4:27 PM Porter McRoberts via groups.io <portermcroberts=yahoo.com@groups.io> wrote:
Bill in your schematic,
The relays are 12VDC control and 24VDC load circuit, easy to put a 2-3 amp fuse on the load circuit.
I've searched for this relay and find it quite difficult to find the definitive solution.  Commonly the reverse is found.
I’d like to build a control board for the pumps.
Might you have a source, or nomenclature that would reveal this hidden gem on the web for me?

A second question:  running a 24v pump at 12v, surely spares the pump, but will it affect the pump volume, as the 1.5+ GPH is quite important, yes?

Always appreciated,

Porter
S/V IBIS A54-152

On Jul 3, 2020, at 3:30 PM, CW Bill Rouse <brouse@...> wrote:

Jamie,

I wish I was on your 54 with you because I have a burning question about all of this. and I have a recommendation for you.

My burning question:
If you see the schematic in my previous post in this thread, you will notice the schematic from a Frigoboat manual. The source of the voltage output from the E51385 blue box to the water pump originates in this schematic with each of the Danfoss Compressor Controllers at the F terminal. In fact, the two wires for each fridge unit come directly from the Danfoss to the E51385. The Frigoboat manual clearly states, regardless of the voltage of the fridge the output on the two F terminals is 12 volts. BTW, the Danfoss operates on 12 or 24 volts, but always outputs 12 volts to Terminal F. Have you checked the output voltage on each of the Danfoss on terminal F and the terminal next to it? I do not see any other way that the E51385 blue box can output 24 volts and if there is 24 volts on the Danfoss fan terminals, I suspect something is wrong with the Danfoss.

My recommendation:
Why don't you do this eliminating the E51385 and eliminate the limitation on amps on the Danfoss terminal F, and run a 24-volt pump??:
<Relays to control water pump.jpg>
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Fri, Jul 3, 2020 at 2:02 PM Jamie Wendell <mysticshadow54@...> wrote:
OK, my "final" update on the Flojet pump and Frigoboat E51385  interface. I cannot explain it, but the interface is definitely out-putting 24 volts to the pump at all times.
Maybe my interface is malfunctioning, so I installed a solid-state relay and a DC converter to step the voltage down to 12 volts. I used a 24-volt relay in place of the E
51385 pump connection and then feed the converter and pump via the live 24-volt terminal box in the engine room. The relay simply engages the pump when the compressors call for it.

A bit more complicated than I would like but the pump runs perfectly now and obviously I no longer get the pump overload signals at the interface. The higher capacity pump may draw more power, but it really cools down the 3 refrigerator units fast.

My next task is to get the brushless motor working to replace the Flojet motor. I will drive it directly via the 24-volt terminal block and eliminate the DC converter.

Until then I am "over and out" regarding this perplexing issue with the E
51385. I really appreciate all the suggestions and assistance, but will report once I have the brushless motor controller operational. That will be the gold standard.

Jamie
Phantom, A54 #44




Re: Is there a valve for the water intake for the washing machine?

karkauai
 

Along the same lines, I had a sink faucet fail last year, and had no way to shut water off to one faucet.  On my list is to put a shutoff valve on every faucet.  I didn't know there was a shutoff valve for the washer.  Gotta find that.

Kent
Sm243
Kristy

On Jul 11, 2020 1:23 PM, Willem Kroes <kavanga@...> wrote:
Thank you Bill,

I found the valve behind the cleaning stuff. I did not expect it on this side,but must admid that I failed to consult the manual.

Anyway, the problem is solved (also with the water intake valve at the washing machine side).

I am very happyt to be on my boat again after so many months of lock down. The Greek authorities made a great leap foreward with their digital system. There are also some very reliable Greek websites for updates on the Covid-19-situation in Greece, like this one:
https://www.atoz-guides.com/coronavirus-in-greece-update/

Thanks again and stay healthy!

Willem Kroes

SM#351 KAVANGA

now at anchor near Menidion Greece


Re: New Thread on A54 fridge pumps (ATTN: OLIVER Vela Nautica)

Craig Briggs
 
Edited

Hi Scott,
Yes, it does seem a bit counter-intuitive that warmish water is more efficient than cold water. Here is a paraphrase from my system's technical manual that may help in understanding it.

The reason (that 90F sea water is optimum) is that in the refrigeration cycle, after the high pressure liquid refrigerant has passed through the expansion valve and gotten cold by converting to a gas, then passed through the cooling coil and taken on the heat of the refrigerated area and then gone back through the compressor, it is about 140F and only needs to be cooled to about 120F to condense back to liquid and repeat the cycle. Thus 80-90F cooling water is all that's needed. In colder water the liquid refrigerant is too cold and is stored in the condenser and the system operates with a much lower suction pressure as the pressure difference across the expansion valve is reduced. This will substantially decrease the capacity of the system and increase the running
time.

That same manual offers corrective solutions for operating in cold open ocean water by using a gate valve or a water by-pass to restrict the flow of too cold water and get the drier and receiver temperature up to about 95F.

From just an everyday non-technical vantage point, consider that the marine market is absolutely insignificant to the global refrigeration market (no special refrigerants, etc. - there is no such thing as "marine refrigeration" outside of the marketing department). Nobody has cold water cooling - Eskimos don't need it! Household refrigerator cooling coils have ambient temps in the 70's or 80's or more (room temp). Apartments and buildings have water source cooling tower ambient temps in the 80's and 90's (or 100's here in Florida) and, therefore, cooling water temps are the same. Those systems are, in fact, at maximum efficiency because they are providing cooling at the condensing temperature of the refrigerant - 80 to 90 ish, depending on the refrigerant.

And, oh by the way, I just Googled Windy.com, clicked on the water temperature, and from 20 S to 20 N, including the entire Caribbean, the water is in the 80's. At my dock in Florida it's 92F. My A/C and refrigerator love it! As do all those cruisers who used to be there before Covid.

I would assert that no marine refrigeration system is designed to operate in extra-tropical ocean cold water temperatures - unless it has a gate valve or by-pass for cold water use. That pump life has been seen to be inversely correlated to ambient temperature is perfectly understandable. It's not the cold cooling water, it's the cool ambient temperature. The cold cooling water is actually increasing the running time and fighting against the cool ambient temperature that is decreasing the running time. 

It would be fun to experiment with a system with a gate valve or by-pass valve in a cold place. Run the system with 55 degree water for a few days and log the run times.  Then throttle down the valve to get 95 degree water for a few days and log that. Then check Oliver's fancy logging system and see what it shows. Dollars to donuts the warm water will see less pump usage.

Fun topic for a locked down Covid evening, thanks for initiating the discussion,
Cheers, Craig


Re: Hardtop for Amel 54

Barry Connor
 

Hi Mohammed,

Thank you for the info, Unfortunately I will not be going to the US for some time. My thoughts are that we are going to be here for some time. I really like the hardtop on Caduceus, I will look into this, will need a stainless steel welder, a fibre glass moulder and a canvas/sail maker. Could be a challenge here in Le Marin! By that I mean that getting work done is a challenge and slow, took 3 months to get 4 brackets made for my new lift up windscreens, The early 54's only had one hydraulic lift arm on each lift up screens at 300N, I am changing to two hydraulic lift arms per screen as per your 54 at 170N each.
If I was still in Greece I would be able to find these workers, Preveza has a young chap, very good at stainless work.

The hardtop on Ruedi and Sabina's Amel 54 might be insulated. Contact Ruedi and he will give you all the info. It looks very well made. 

Very Best

Barry and Penny
"SV Lady Penelope II"
Amel 54. #17
Sainte Anne anchorage Martinique

On Saturday, July 11, 2020, 5:13:42 PM EDT, Mohammad Shirloo <mshirloo@...> wrote:


Hi Barry;

 

Caduceus’ hard top was made in Norfolk West Virginia.

 

What did you think of the Emek installation? Do you know if it was insulated and how it has performed so far?

 

Happy Sailing;

 

 

Mohammad and Aty

B&B Kokomo

AMEL 54 #099

 

From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> On Behalf Of Barry Connor via groups.io
Sent: Saturday, July 11, 2020 1:46 PM
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] Hardtop for Amel 54

 

Hi Scott,

 

Thank you for the photo.

I am going to see them on Wednesday when everything reopens here after this holiday weekend. I do hope that your price is not correct.

My current Bimini is an all cover, 5 bow frame with Sunbrella, like the hardtop made for Caduceus Amel 54. #56.

  

Mohammad: Thank you for the photos. Do you know where Caduceus hardtop was made? The Emek Marine link is the hardtop on Wasabi Amel54. I think #50? Ruedi and Sabina showed me over this with the complete coverings.

 

Very Best

 

Barry and Penny

"SV Lady Penelope II"

Amel 54. #17

Sainte Anne anchorage Martinique

 

 

On Saturday, July 11, 2020, 4:28:59 PM EDT, Courtney Gorman via groups.io <itsfun1@...> wrote:

 

 

I wonder if they would do a volume discount?

Bill is this an Amel School possibility?

Cheers 

Courtney 

svTrippin

54 #101

Brunswick 



On Jul 11, 2020, at 4:21 PM, Scott SV Tengah <Scott.nguyen@...> wrote:

This one was done by Manu at Alize Composites in Le Marin.

I think he said 25-30k euros.

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

<P1070516.JPG>


Re: Hardtop for Amel 54

Mohammad Shirloo
 

Hi Barry;

 

Caduceus’ hard top was made in Norfolk West Virginia.

 

What did you think of the Emek installation? Do you know if it was insulated and how it has performed so far?

 

Happy Sailing;

 

 

Mohammad and Aty

B&B Kokomo

AMEL 54 #099

 

From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> On Behalf Of Barry Connor via groups.io
Sent: Saturday, July 11, 2020 1:46 PM
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] Hardtop for Amel 54

 

Hi Scott,

 

Thank you for the photo.

I am going to see them on Wednesday when everything reopens here after this holiday weekend. I do hope that your price is not correct.

My current Bimini is an all cover, 5 bow frame with Sunbrella, like the hardtop made for Caduceus Amel 54. #56.

  

Mohammad: Thank you for the photos. Do you know where Caduceus hardtop was made? The Emek Marine link is the hardtop on Wasabi Amel54. I think #50? Ruedi and Sabina showed me over this with the complete coverings.

 

Very Best

 

Barry and Penny

"SV Lady Penelope II"

Amel 54. #17

Sainte Anne anchorage Martinique

 

 

On Saturday, July 11, 2020, 4:28:59 PM EDT, Courtney Gorman via groups.io <itsfun1@...> wrote:

 

 

I wonder if they would do a volume discount?

Bill is this an Amel School possibility?

Cheers 

Courtney 

svTrippin

54 #101

Brunswick 



On Jul 11, 2020, at 4:21 PM, Scott SV Tengah <Scott.nguyen@...> wrote:

This one was done by Manu at Alize Composites in Le Marin.

I think he said 25-30k euros.

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

<P1070516.JPG>