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Old 08-14-2020, 11:41 PM   #1
rhb
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Brand: Thor Motor Coach
State: Oregon
Posts: 13
THOR #19441
Valve identification Sequence 20L

Has anyone been able to find anything in the documentation or from any other source that describes the function of any of the valves dealing with the hot and cold water flow under the driver side bed in the 20L. Clearly they include the water heater by pass valve and other similar functions necessary for winterizing the van. However, unlike the Winnebago Travato 59K these are not labeled. The space in which they are located is not the easiest when it comes to trying to trace out the water lines.
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Old 08-14-2020, 11:50 PM   #2
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Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 2,261
THOR #6411
Quote:
Originally Posted by rhb View Post
Has anyone been able to find anything in the documentation or from any other source that describes the function of any of the valves dealing with the hot and cold water flow under the driver side bed in the 20L. Clearly they include the water heater by pass valve and other similar functions necessary for winterizing the van. However, unlike the Winnebago Travato 59K these are not labeled. The space in which they are located is not the easiest when it comes to trying to trace out the water lines.
The valve connecting the two lines (hopefully blue and red) should be closed (cross ways from the line) for normal operation. The other valves in the lines should be open (lined up with the line). If there is a tank drain valve, it will be in the blue line and the end will go directly through the floor and it needs to be closed..
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Old 08-14-2020, 11:59 PM   #3
rhb
Junior Member
 
Brand: Thor Motor Coach
State: Oregon
Posts: 13
THOR #19441
Thank you for your response.

Not having any problems with normal operation.

Just trying to identify the valves so I know exactly what each of them do when it is time to winterize. There are 6 different valves. But it is not very easy in the space to determine the exact purpose of each.

Since there is not any documentation, I figured it would be better to start early to try and identify, instead of waiting until I actually need the information. On the Winnebago Travato 59k the similar valves were clearly labeled.
(a friend of ours has one of those) Somewhat surprised that Thor did not do the same with the Sequence 20L.
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Old 08-22-2020, 10:02 PM   #4
rhb
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Brand: Thor Motor Coach
State: Oregon
Posts: 13
THOR #19441
Did get some diagrams from Thor customer service. After going through the diagrams and tracing some of the locations. This is the conclusion that I came to.

There are 6 valves under the drivers side bench. When you open the hatch their are two (one hot, and one cold) that are on lines rising vertical to the back and right of the area. These are water cutoffs going to the kitchen faucets.

Along the floor just to the left of center of the hatch area are two more valves. One is on a cold water line and is labeled shutoff. I believe this one this cuts off cold water going to the Truma hot water heater.

The second valve is identified with bypass on the drawings and is on a hot water line but connects after the valve connection to a cold water line. That should make this the water heater bypass valve.

There is a 5th valve over to the right of the hatch in a vertical hot water line. This appears to be the cut off the hot water out put from the hot water heater.

The 6th valve is the Truma through floor pressure relief and through floor tank drain.

On the 20L the antifreeze port is under the passenger bed, behind the back wall of the storage area. Next to it there is also the shutoff valve from the water storage tank. The water tank through floor drain valve is also over under the passenger bed in the corner next to the sliding door.
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