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Old 03-29-2012, 11:51 AM   #1
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Hot water heater by-pass help?

We have the 27hfs. Having some trouble with the hot water heater by-pass valve set-up. So there is a valve on top with red on the hot line running horizontal, valve on bottom with blue cold line running horizontal, valve on left side running vertical with red and blue and then the little white valve in the middle of the white lines. Could someone please tell me the positioning of these (4) valves when winterizing and when un-winterizing? This is not my first RV but for some reason, I cannot grasp how these valves are supposed to be turned for each situation.

Thanks,
Kathy
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Old 03-29-2012, 12:46 PM   #2
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Kathy,

I can't give you much help with the fourth valve on the clear line, but the red line running from the top of the heater should be open for normal operation as well as the valve on the blue line running into the water heater. The red is the hot water out of the tank and the blue is the cold water going in. The vertical line between the two should be closed so that your cold and hot water does not mix during normal operation. It took me an entire day last weekend to figure out why I had warm water istead of hot. I realized that the vertical valve was open mixing the two lines. When winterizing, the blue line and red line valves should be closed so that you can drain the water heater and and not have to put antifreeze in it. Hope this helps!
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Old 03-29-2012, 12:48 PM   #3
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When the longest dimension of the handle is in the same direction as the pipe, the valve is open...when its 90 degrees to the pipe, it's closed.

For normal operation the red line and blue pipes open, the valve between them closed, the small clear line (suction line for drawing antifreeze) closed.

For winterizing, the valves would be opposite.

Dave
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Old 03-29-2012, 12:54 PM   #4
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Thanks so much. That helps a lot. My next question was going to be why my water is just warm and not hot. Problem solved. None of our paperwork actually gave the answers.

Kathy
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Old 03-29-2012, 02:27 PM   #5
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Looking for answers in a book reminded me of a line from the Simpson's Movie. Hopefully there are better answers here for you.
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Old 03-29-2012, 03:53 PM   #6
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Don't know what line you are referring to but I can only imagine Always find much better answers on the forum for sure.

kathy
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Old 06-11-2012, 09:07 PM   #7
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Had the same problem the water would only get warm and not hot. Checked the manual. it said to have hot, cold and bypass open. Didn't make sense to me to have the bypass open too so I shut it after reading what you guys said about having it closed. works great now water is good and hot. Thanks, this is definitely the place to come to for problems if you're a nubee.
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