Originally Posted by wasagachris
I was hoping Lew would chime in on this. I knew he would have the answer.
Lew do they also incorporate a check valve for winterizing?
Do you need this valve? Couldn't you just install one way (check) valve instead?
Atwood's W/H just slip right in and don't require any mods to skins.
What has to be done to service these valves?
YMMV? Don't know that abreviation yet.
NO. You need to put in a winterizing bypass kit which you can get from any well stocked RV supply shop. The check valve is usually added to the hot water output side to prevent cold water from returning into the tank when the water system is pressurized. It wouldn't help in winterizing.
Servicing the valves entails removing the valve from the output side of the heater and soaking it in warm vinegar to dissolve any hardened mineral solids that mat have formed within the valve. I have tried this a few times with unsatisfactory results! I am NOT a fan of these 'high capacity' water heaters for that reason.
Minno, you theoretically could
remove this mixing valve, but that would give you 140* output water at the faucet which WILL BURN YOU!
as the thermostats in this unit are 20*F hotter than normal units. Atwood has added this valve in the attempt increase the water capacity of these units and limit their legal liability. JUST GET A NORMAL ATWOOD UNIT, NOT THE HIGH CAPACITY ONE.
And finally, YMMV = 'your mileage may vary'