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Old 05-22-2012, 05:01 PM
ArtJ ArtJ is offline
 
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FireBoy HFC227

Hi Guys

I just received a Fireboy HFC227 3.5 lbs extinquisher today. It is specified
to handle 75 Cubic Feet. My engine box is approximately 2ft by 3.5 ft by
3.5 ft. So It should be enough.

Several problems to solve. the battery compartment containing 4 large
batteries is outboard of the center keel mounted engine compartment
it is similar in size to the engine box. The gasoline tank is also under
the same settee and is just after of the battery compartment and the
engine box.

There is zero room in the engine box for the extinquisher.

I had thought of putting it in the battery compartment adjacent to the
engine box. There is only a couple of access cutouts for the
battery cables between the engine box and the batteries. There
is also not a lot of room for the extinquisher but may be possible to
fit. I had originally thought of added a extended metal hose to the
output of the extinquisher, but after reading the caviats on handling
am not sure I want to do that.
The unit is equiped for both manual and automatic use.
I bought a 12 ft remote cable with it for manual use from the cockpit.
Fireboy recommends shutting down the engine as well as blowers
when using it. Not sure how to do this immediately without forgetting
in the heat of the emergency.
Also and importantly, the automatic extinquisher is set to go off
at 175 degrees F which alarms me because the engine routinely
runs at nearly 180 and can sometimes when pushed go higher.
Don't want activation for a routine boil over.
I wonder how close the extinquisher can be to the standpipe box and
engine without getting too hot?

I also note that fireboy recommends not mounting the extinquisher
90 degrees to the keel on a saiboat ( not sure what this means )
They also state that the nozzle must be higher than the bottle or worse
case horizontal. Mounted on the hull side of the battery box it would
have to be horizontal and probably below the bottle bottom when heeled.
I had considered mounting it in the space where the navstation and
electrical switches are located ( which is just aft of battery compartment)
and cutting a small access hole to allow contents to spray into battery
compartment and (hopefully) reach engine.

Comments and suggestions greatly appreciated.
I would plan to activate it with the remote cable if necessary, maybe
automatic was not a good feature.

Best Regards and thanks

Art
Ps boat is now afloat!!!
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