douglee25
Well-Known Member
I'm not sure where you're going with this?
Doug
Doug
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature currently requires accessing the site using the built-in Safari browser.
Could you also be over looking the fact that the ambient air around the pump and manifold is no where near the temperature of the cooling water? It is closer to engine operating temps of something like 125 to 140 degrees, less the cooling effect of vent air in the engine spaces.
Who said I was an expert? Maybe I am an alarmist, I can accept that. I would rather error on the safer side if I had a choice. I also don't recall having to dig out barnacles, sea grass, oysters etc... from my commercial unit.
... as safe as possible.
So you're telling us that the heat transfer from the ambient engine room temperature is going to heat up the water like it was coming out of a hot water heater when pumped through the circuit?
Science, theory, hydraulics, thermodynamics- whatever you want to call it don't lie. Sure 'real world' conditions can change things slightly, but this stuff isn't made up.
Doug
Line losses play a significant role in sizing the cooling system because of the added hose length. Bridge air adds about 4 miles of 5/8" hose to the cooling circuit
My understanding is that wear to A/C systems comes from cycling, not running.
Make sure that your through hull and plumbing does not restrict an 1800gph pump.
....How much pressure can the system tolerate? I mean that's a ton of pressure. A hose clamp lets loose and you're in a world of hurt.
Just trying to figure out how many gph that pump will actually draw. How much pressure you have to produce to adequately feed 3 units. ...
Actually, I think he has more computations to make than that.
Pump volume capacity and pressure aren't the sole determining factors in the cooling system design. Line losses play a significant role in sizing the cooling system because of the added hose length. Bridge air adds about 4 miles of 5/8" hose to the cooling circuit and the system isn't going to cool properly with one pump. The more volume you push thru the system, the closer to sea water temps you keep the compressor and the cooler the compressor, the more effective the temperature change for human comfort. If you can lower the temp 20 degrees with your compressor system design, but your water flow is restricted to the point that your compressor temp is 105 degrees, them the best you can hope for is 85 degrees at the output, but if you can get the cooling water volume high enough to lower the compressor temp to 85 degrees, then your 20 degree temp differential at the output drops the output air to 65 degrees. It will make a difference.
Comparing this installation to other models is also a faulty premise because many larger Sea Ray now dump the cooling water into an exhaust tube molded into the engine exhaust system thus eliminating a fair percentage of the cooling system's small diameter tubing in the cooling circuit which also eliminates some of the systems line loss.
...but what happens with the units cycle off and the pump stops running and water sits in the lines beside hot engines?
I don't come to CSR to argue minutiae with folks who come around just for confrontation. Alex can call, PM or email me if he wants further info from the dealer.