Hot water bypass

[evo8grl]

My Coachman Catalina was winterized by the dealer. What position should the center valve be in when turning on the water heater? Sorry the picture is sideways.

[fonzie]

Center valve should be turn 90 degrees for normal use (close) and other two valve turn open as show in second picture. make sure water heater is full water before turning on electric supply to it otherwise element will burn up.

[evo8grl]

Thank you very much!

[Mike101]

Very sorry but I need to ask clarification. The top image represents what ? it does not match the normal use and by passed pictures. So, should I follow the 2 little colored diagrams on the right in picture below ? Summer all 3 valves are side to side (flat) and winter all 3 valves are up and down ? they all match direction winter and summer ? I have a rockewood 8280 ws 5th wheel

[oxcamper]

The bottom picture is correct for normal use.
The upper picture is not correct for any use.
Go by the diagrams fonzie posted, they show the correct position for the valves.

explaination:
When the middle valve is shut, water goes in from the cold (blue) hose through the heater and out through the hot (red) hose. The middle valve prevents the cold water from bypassing the hot water tank. If left on, it will add cold water to your hot water.

When the middle valve is open and the cold and hot (blue and red) valves are shut, the water heater is isolated from any water getting to it and you will only have cold water. This is the position for winterizing, as you do not want antifreeze in your hot water heater.

[SuicideSaints]

MIKE101, the very first pic in the thread is somewhat of an anomaly if I am seeing it right. It has all flows open. what happens in this pic is the water heater will heat water but you will have cold water mixing with the hot on the output side (so cold will mx with hot to the tap resulting in what makes you think the water heater is not working properly). To your question as to what does this represent, it represents an incorrect set up.

Follow the colored diagrams in the second post, the pic in the second post is correct. But, take a look at the diagrams again, not all the valves are the same, in summer operation (non-winterized) they are not all flat as you say and the opposite for winter. For summer (normal operation) the hot and cold are open and the bypass valve (center valve in the diagram) is closed, for winterization the hot and cold valves are closed and the bypass is open.

Hope this helps

[Mike101]

Thank you. Sometimes the basics just get lost. Heading out in July so wanted to make sure all right. Very much appreciated. Now if I can only get the pump from doing a 2 second pressure fill every 30 minutes my wife will be a happy camper..

Mike

[Flybob]

If your water pump runs every 30 mins, you have a small leak somwehere, Check low point drains, outside shower, water heater safety valve.

[SuicideSaints]

If the pump is kicking on that means you are losing pressure somewhere, could be a leak somewhere.