 Check out the bookstore at IRBS.com |
|
|
|
|||||
|
||||||
From: Norm of Bandersnatch (no email)
Date: Tue Mar 06 2007 - 10:04:16 EST
A low-cost wonder is to buy a little Klixon type thermoswitch for each engine. The ones I have are normally open temp switches that close at 120 degrees F. They are less than $10 and I got mine at Graingers (White-Rodgers 3F01-121 fixed setting snap disk fan control, close 120deg F, open 110 deg F), but any HVAC parts place should have them. They are held against the hose with a spring around the hose near the manifold. This is the first place to get hot when you loose seawater flow. The generator one shuts the engine down (it did so yesterday due to weeds in the strainer), but the main engine one rings an alarm.
Norm
S/V Bandersnatch
Lying 30 07.715N 081 38.394W
Julington Creek Estuary FL
----- Original Message -----
From: Peter Gelinas
To:
Sent: 3/5/2007 9:32:47 PM
Subject: Re: lv-ab: Water strainer suggestion
Hi Norm
Any chance of having a more precise description of this thermostat? I have gone to the plumbing department of 2 Home Depots here in Florida and asked for this thermostat in the AC department .... they haven't the slightest idea what I am talking about.
The Klixon website is a surfers dream, thousands and thousands of item numbers, but nothing that resembles what I think I remember as this thermoswitch ... stamped metal, oval base, dime shaped thermostat, ..
Thanks in advance for the help. Any rference to the Klixon website would also be a great help
Peter
On 2/27/07, Norm of Bandersnatch <> wrote:
I have done this with my 8KW genset using a small plastic strainer such as
used on the suction side of a domestic fresh water pressure pump. It has
worked exceedingly well and I highly recommend it to all.
In addition, I suggest putting some sort of spray shield around the
seawater pump neck so when the seal fails seawater drips from the shield
instead of being flung into the alternator. I started with duct tape and
graduated to a piece of clear vinyl with a ss snap.
Also, put a NO (normally open), 120 deg F "Klixon" type heat switch
(available at a HVAC shop) on the rubber exhaust hose just downstream from
the seawater injection point to shut down the genset, or warn you in the
case of the main engine, when seawater flow is lost. This hose is the
first thing to react when seawater flow is stopped.
All of the three things above are cheap and easy to do and have paid back
huge dividends.
I have no seawater strainer downstream of the pump on the main engine
because the inlet side of the heat exchanger is just as easy to open as a
strainer would be.
Norm
S/V Bandersnatch
Lying 30 07.715N 081 38.394W
Julington Creek Estuary FL
___________________________________________________________________________
|| The Live-Aboard List : send a "subscribe" or "unsubscribe" request ||
|| in body of message to: ||
___________________________________________________________________________
|| The Live-Aboard List : send a "subscribe" or "unsubscribe" request ||
|| in body of message to: ||
|