Good Bill,

More precisely, my question is why the 24 volt Fans are connected to a 12 Volt circuit?
The manual confirms it: “both 24 V devices work intentionally on 12 V deliver by the main engine alternator”.
http://nikimat.com/engine_room_fans/engine_room_fan_15.jpg

To make sure it was the fan being defective, I started the Volvo and measured 13 volt (on the wires going to the fan).

Thanks again! Sincerely, Alexandre

--------------------------------------------
On Wed, 4/27/16, 'Bill & Judy Rouse' yahoogroups@... [amelyachtowners] <amelyachtowners@...> wrote:

Subject: Re: [Amel Yacht Owners] Engine room temperature and cooling
To: amelyachtowners@...
Date: Wednesday, April 27, 2016, 6:22 PM


 









Alex,
It receives it's power from the 12VDC
Starting circuit.
Bill Rouse

BeBe Amel 53 #387

Sent from my tablet

+1832-380-4970 USA Voice Mail
On Apr 27, 2016 7:14 PM,
"Alexandre Uster von Baar uster@...
[amelyachtowners]" <amelyachtowners@...>
wrote:















 









Update:



Looking at the owner manual, I just saw the engine, in
addition to the intake fan, has also an extraction fan FASCO
24 Volt 2807-513-122 --- 93004-2815

http://nikimat.com/engine_room_fans.html



Engine on, I noted it was not working and likely the cause
of the warmer engine room.



With a Volt Meter I checked current was going to it and it
did: measured 13 Volt.

It seems normal as the owner manual says so…



Does someone know why this “24 Volt” FASCO 2807-513-122
--- 93004-2815 is connected to a 12 volt connection?



Olivier?

Joel?

Bill? Anyone?



Sincerely, Alexandre

SM2K #289 NIKIMAT

Private Slip, Marina Puerto Bahia, Samana, Dominican
Republic



--------------------------------------------

On Wed, 4/27/16, Alexandre Uster von Baar <uster@...>
wrote:



Subject: [Amel Yacht Owners] Engine room temperature and
cooling

To: amelyachtowners@...

Date: Wednesday, April 27, 2016, 10:54 AM





Good morning,



May be I am a control freak, but when using the engine
or

genset I monitor the temperature of the engine
compartment

via a wireless temperature sensor. 



I rarely use the engine for more than an hour at the
time

(mostly to leave and come back to a marina), but in a
few

occasions had to motor for 10 or more hours.

The temperature in the engine room, will gradually
increase;

when it reaches 47*C I open the engine hatch (sea
condition

permitting obviously) for 1/2 hour to cool it down to
45*C

and so on. 

“My” reason to do this is because of component from
the

generator melting at 50*C. 



Note:  the “suction” (intake) 24 Volt Jabsco

35440-0010 250 CFM Blower Fan is working (starts when
engine

is ON). 



Is there may be an air intake our outtake that could be

partially blocked? 

Is there another fan I am forgetting about? 





Other note: when using the Generator, it rarely goes
over

46*C after 2.5 hour use (its fan is also working).



Sincerely, Alexandre

SM2K #289 NIKIMAT

Private Slip, Marina Puerto Bahia, Samana, Dominican

Republic
































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