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Old 12-25-2015, 07:36 AM   #1
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Hot Water bypass

Where would the hot water bypass be in my unit (see signature line)? Since I had it winterized at a dealership I have not had the opportunity to work with the bypass but I will need to when I get down south and de-winterize. I'm pretty clear on the process - just don't know where the bypass is located.

All help appreciated.

Thanks.
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Old 12-25-2015, 07:42 AM   #2
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On the back of the hot water heater.
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Old 12-25-2015, 07:45 AM   #3
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My guess from looking your unit up online;

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Old 12-25-2015, 07:48 AM   #4
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Behind the water heater. Three valves, cold going into the heater, hot coming out and bypass valve between them. In bypass mode cold and hot are off and bypass between them open. reverse the three to put the heater back into service. Be sure the water heater is full of water before restoring electric power, a nano second of power to the heating element without water in the tank will destroy the element. You should have access to the rear of the water heater by removing a panel or drawer or something like that.
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Old 12-25-2015, 07:52 AM   #5
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By your layout I have a WAG that your W/H bypass is located Inside a Kit Base Cab,might have to Pull and Remove sliding Drawer to gain acess,and have Long Arms! Youroo!!
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Old 12-25-2015, 07:56 AM   #6
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Look at the outside access panel then go inside and look is there a bench seat or a removable panel under the fridge or in a cabinet?

As an example mine are located behind a panel held on by two screws right under the fridge.

Some are under a bed pedestal, lift the mattress and remove the sheet of wood is lays on.
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Old 12-25-2015, 08:10 AM   #7
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I think Platokidd has it right.

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Old 02-28-2016, 11:05 PM   #8
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I too have purchased a winterized 2010 Cardinal 3450. I understand the concept of by passing the water heater. I would like to know the position of the valves whether open or closed. Is the valve handle parallel to the water line open or closed?
Thank anyone for your help.
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Old 02-29-2016, 08:38 AM   #9
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Quote:
Originally Posted by jerrymc View Post
I too have purchased a winterized 2010 Cardinal 3450. I understand the concept of by passing the water heater. I would like to know the position of the valves whether open or closed. Is the valve handle parallel to the water line open or closed?
Thank anyone for your help.

Jerrymc- valves are designed to be open when parallel to the pipe/line and closed when perpendicular to the pipe/line. Hope this helps.

JG


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Old 02-29-2016, 08:53 AM   #10
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Here is a post from another thread that shows the bypass valve handle positions.


Quote:
Originally Posted by wmtire View Post
Most likely your bypass valves are incorrect (very common). Do you know if they are behind the water heater (as many RV's are)? You will need to gain access to the backside of the water heater thru a cabinet, fake panel, etc. Each RV is different as to how to gain access in this aspect.

Once you do get to the backside of the water heater, then you may see either one, two, or three valves total on the water lines. The three valve system seems to be the most common.

If so, then the cold water inlet valve needs to be open, the hot water outlet valve needs to be open...and most importantly, the bypass valve, which ties the cold water line into the hot water line for winterization/antifreeze purposes needs to be CLOSED.

The valves are open when the handle is parallel with the water line it is on, and closed when the handle is perpendicular to the water line it is on. It's easy to confuse the bypass lines handle direction since the line itself runs vertically usually...but you need to make sure the handle is perpendicular to that particular line.

If the bypass valve is open, then cold water is coming in to your hot water line.

Here is how you want it:







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