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Winterizing residential fridge and Aqua Hot

Yahoo Message Number: 92065
We have the Amana side-by-side fridge in the Allure. CC 'Tech Topics' says to use RV antifreeze to winterize the ice maker, etc. I realize I have to use the pink stuff in the coach to winterize the Aqua Hot but with my previous coach with residential fridge, I used air to blow out the lines to the fridge, then disconnected the line at the source to keep any RV antifreeze out of the fridge.
I cannot locate where the line that provides water to the fridge connects since there is no access to the rear of the fridge. Is the line connected somewhere in the water bay?
Also, does it really take 10+ gallons of RV antifreeze to do the job since you have to essentially fill the Aqua Hot tank?

Gary

'07 Allure 470 #31578

Re: Winterizing residential fridge and Aqua Hot

Reply #1 –
Yahoo Message Number: 92067
The AquaHot produces hot water using a copper loop heater exchanger immersed in the boiler of the unit. The coil holds about a quart of water not 10 gallons. The boiler fluid is already antifreeze and separate from the hot water loop.

I can't help with the ice maker question.

Don Seager
Quote
gkirby86@... wrote:

We have the Amana side-by-side fridge in the Allure. CC 'Tech Topics' says to use RV antifreeze to winterize the ice maker, etc. I realize I have to use the pink stuff in the coach to winterize the Aqua Hot but with my previous coach with residential fridge, I used air to blow out the lines to the fridge, then disconnected the line at the source to keep any RV antifreeze out of the fridge.
I cannot locate where the line that provides water to the fridge connects since there is no access to the rear of the fridge. Is the line connected somewhere in the water bay?
Also, does it really take 10+ gallons of RV antifreeze to do the job since you have to essentially fill the Aqua Hot tank?

Gary

'07 Allure 470 #31578

Re: Winterizing residential fridge and Aqua Hot

Reply #2 –
Yahoo Message Number: 92078
Gary,

There is no fresh water tank to fill in your HydroHot. The domestic water goes through a copper coil that is immersed in a hot antifreeze solution. There is a very small amount of fresh water in the coil. Maybe a quart or two.
George in Birmingham '03 Magna 6298
George in Birmingham
2003 Magna 6298

Re: Winterizing residential fridge and Aqua Hot

Reply #3 –
Yahoo Message Number: 92083
Gary - The goal with pumping in RV antifreeze is to mimic what the water does in the plumbing system. The RV antifreeze will freeze but doesn't create any bursting forces. The risk with compressed air, aside from pressure damage and water hammer, is residual water may refill parts of the plumbing system in pockets. When that water freezes, it can damage the plumbing. 10+ gallons sounds about right to make sure the water in all plumbing volumes is displaced with antifreeze. As for the frig, you'll need to find a way to have it call for ice making water. Enough so the ice trays get filled with antifreeze. This will ensure the solenoid valve, feeder piping and ice maker areas get the water purged from them. It very important to make sure that all water gets purged with antifreeze. That to include your washer, if you have one. Don't forget the Santi-Flush system plumbing. Running hot water from any faucet until you see pink will take care of the Hydro-Hot heat exchanger. The HTF in the Hydro-Hot is already antifreeze. Just make sure it isn't diluted for some reason. You can sample some of it in a cup and put it in your freezer. It shouldn't freeze or gel. I'd do the same with your RV antifreeze just to make sure. Some of this stuff is cheap and may be off spec. Why make an expensive mistake!

On our bus, there's a connection to the pump's inlet. This is intended to suck in antifreeze. But there's a check valve that keeps water from flushing out your city water hose. The hose drum has metal fittings will need attention. I'd pump antifreeze through that too just to be safe. Also the lever valves and city water feed plumbing need antifreeze. Your fresh water tank plumbing and its drain valve will need attention too. There's a bypass circuit for the hot water loop too. Not sure what gives with this. Lots to think about. Good luck.

Best - Scott

2006 Allure 430 40' #31349

(Bus-Stead Lemon) My Allure Page http://www.muniac.com/Allure%20Page.html