Winterizing 2007 Grady White Express cockpit cooler/chill plates and A/C

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PVM

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Express 330
I am curious how to winterize the cockpit and aft cooler chill plates and AC on a 2007 Grady White Express?

Is the fluid that runs through the chill plates raw water or am I just winterizing the raw water that cycles through the AC/Cooler pump?

If that is the case, should I just disconnect the line from the sea strainer, connect it to a antifreeze source, and run both simultaneously?

The raw water pump for the AC pump cycles at a pretty high rate which must blow through fluid?

Any tips or tricks?
 
I'm not up to speed on the chill plates as I have never personally dealt with them - without researching, I wouldn't want to give misleading info... and I don't want to give advice based only on internet research, either!

For the AC (and the chill plates IF they physically run on the same loop, of course) - yes, you can do it as you mentioned. You can also use a $10 hand pump and pump AF through the system starting at the thru-hull (where the water would exits the hull). It's a straight run from there, through the AC unit, through the motor and out the hull bottom seacock. So, when you see pink coming out the hull bottom pickup, you're good.

Both ways work 100%. It just comes down to what is most convenient for you.
 
DennisG01 said:
I'm not up to speed on the chill plates as I have never personally dealt with them - without researching, I wouldn't want to give misleading info... and I don't want to give advice based only on internet research, either!

For the AC (and the chill plates IF they physically run on the same loop, of course) - yes, you can do it as you mentioned. You can also use a $10 hand pump and pump AF through the system starting at the thru-hull (where the water would exits the hull). It's a straight run from there, through the AC unit, through the motor and out the hull bottom seacock. So, when you see pink coming out the hull bottom pickup, you're good.

Both ways work 100%. It just comes down to what is most convenient for you.
Click to expand...
Thank you, Dennis,

I like the idea of the reverse flow with a pump. Sounds like it will use a lot less antifreeze to accomplish the same result. Appreciate it.
 
Yes chill plates run off the same raw water pump as the ac system. When we had our 305 Express I would just open strainer, turn ac system on, pour anti freeze in and let the pump run the antifreeze through the system. Did not take much anti freeze.
 
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