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I forgot to answer Roger's other questions:-
I would assume that genset manufacturers want to ship you a packaged unit
that is ready to run. If the pump was shipped as a separate item and not
installed, perhaps they would get more service problems??
Nearly all the pumps used on A/C raw water cooling would be totally
unsatisfactory. You need a real pump - those are toys in comparison and too
unreliable.
NO, you can't use a 12 volt pump. The whole idea relies on the pump being
connected directly to the output 120/240 volts of the genset with only an
emergency fuse between so that you can guarantee the pump will always start
when the genset runs and puts out voltage.
Regards,
Andina Marie Foster,
----- Original Message -----
From: <>
To: "Roger Rippy" <>; <>
Sent: Monday, August 29, 2005 7:04 PM
Subject: Re: lv-ab: Raw Water Pump
> You need to match the pumping capacity and pressure approximately to the
> pump you are replacing. Typical A/C raw water pumps would be too small
for
> most gensets. Something like
>
http://www.pool-spa-products.com/cgi-bin/SoftCart.exe/scstore/p-SP1775.html?E+scstore
> in the 3/4 HP is what I had in mind although it may be a little on the
large
> size.
> Or http://makeashorterlink.com/?M140323BB for a smaller type.
>
> Regards,
>
> Andina Marie Foster,
>
>
>
>
> ----- Original Message -----
> From: Roger Rippy
> To:
> Cc:
> Sent: Monday, August 29, 2005 5:40 PM
> Subject: Re: lv-ab: Raw Water Pump
>
>
> So why aren't all auxiliary motors using this system? Sounds real good.
I
> take it that a 12v pump like either a Shurflo or Jabsco would work?
> SV Tin Cup
>
> wrote:
> (Private message posted to BB with apology - contains applicable
> information).
> I wouldn't say they are maintenance free but the maintenance level is
> about
> 1% of an impeller pump. If you use a centrifugal pump it should be the
> "self priming" style just in case it sucks bubbles in from under the
> hull
> while underway.
>
> Other advantages are:- The raw water drains back when off emptying the
> heat
> exchanger and reducing electrolysis. It also drains back from the
> exhaust
> manifold reducing the possibility of water in the cylinder. It also
> doesn't
> start to pump until the engine starts which will also avoid water in
the
> exhaust manifold if you have a long cranking time on a difficult
start.
>
> Regards,
>
> Andina Marie Foster,
>
>
> ----- Original Message -----
> From:
> To:
> Sent: Monday, August 29, 2005 3:03 PM
> Subject: Re: lv-ab: Raw Water Pump
>
>
> In a message dated 8/29/2005 2:57:09 P.M. Eastern Standard Time,
> writes:
> install a 115 volt pump connected directly to
> the genset 115V output. Plumb it between the strainer and heat
> exchanger
> Do these pumps have any maintenance at all?
>
> See you in Paradise!
>
> Capt. Sterling
>
> Florida Keys and Key Largo Everglades Tours
>
>
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