Help with connecting this Heater.........

[tararura]

Hi
I have been redoing my 1969 trade wind from scratch. Now its time for plumbing. Bought this new heater from c.list. Could be a demo . Just need to know how to connect the water lines.
If I am not wrong, bottom is the cold line and top is hot. But if you see in pics there is some kind of a valve on top with two outlets. The red knob on it does not turn left or right. So I am confused how to connect.
thanks in advance.
TJ

[wasagachris]

It looks like a one way or check valve that only allows water to flowout of heater. Yes hot on top and cold on bottom. Your hot water feed to the trailer would install on the left side of that valve and a connection to the cold side at the bottom with a shut off valve in the middle and another shut off valve at the cold inlet. These two shut off valves in conjuction with the check valve would be used to winterize the trailer. To winterize you would close the valve at the cold inlet and open the one in the middle. This would allow antifreeze to travel from the cold line through the hot lines and by pass the water heater. In the spring you would close the middle valve and open the one at the cold inlet to fill the water heater.

[tararura]

Thanks a lot for the response. I think you are right. I will connect it according to your directions and check it out.
TJ