-
Hot water tank
Is there any other tank that can be used in a liberty coach than what the converter installed. I looked up that part And Raritan is quite proud of there stuff, 2 to 3 more pricy than others the same size. -
7 Replies
-
Grant…………Here’s the topic in a nutshell.
When you are driving engine coolant circulates around or thru the water in the HW tank. If you are flowing full flow the water will reach the temperature of the coolant and it will do it quickly.
If you turn off the flow of coolant using the valves over the HW tank you will get no heat from the coolant into the water.
If you crack the valve the coolant is still the same temp but since less of it flows the only difference between full flow or no flow is the rate of temperature rise in the water. For example if you were capable of precisely measuring the flow of coolant and were able to regulate it precisely you could open the valve so that from a cold start, at the end of a day’s driving you would have water 120 – 125 degrees which is the set point of the electric thermostat. But then the next day you would have to readjust the flow because you would be starting out with hot water so after 8 hours of driving the water is going to be hotter than the day before. And so on.
I just added a second thermostat and a solenoid valve that it controls to regulate the flow of coolant going to my HW tank. When I am driving the circuit is powered and if the water in the tank needs to be warmed up the valve will open, but when it reaches the set point of 120 degrees the valve closes and the coolant flow stops. This is the second coach I did that to and it eliminates the excessive water temps that are going to happen if any reasonable amount of coolant can flow through the valves. The way your coach is set up now the only way you can be assured of not getting excessively hot water is to shut off the valves.
Thinking a 1/4 turn or 1/2 turn or whatever is magically going to stop you from getting scalded is not going to happen. The temperature of the water in the HW tank is determined by how long you drive, what the starting temperature is and how much HW you use. There is no way in the world a given number of turns on a coolant valve is going to regulate the temp of the water unless you always start with cold water in the tank, drive a given number of hours each day, and allow some specific but as yet unknown flow of coolant. You need some form of thermostatic control.
-
Hi Jon…that answered that question for me completely…THANKS !!!
I appreciate that !!!
Maybe when we get together later in the year you’ll coach me on the thermostat refit.
Grant Olson.
2005 Liberty.
-
I can do that, but it’s gonna cost you.
-
No problem…like most Alberta hillbillies I usually pay in homemade hooch but all things are negotiable.
Grant & Leslie Olson.
2005 Liberty.
-
Greetings Jon…is that coolant line dedicated to the water heater or does it carry on to other functions ? If so how does the adjusting of the flow affect those other tasks ?
Grant & Leslie Olson.
2005 Liberty.
-
Engine coolant is curculated via a loop in the water bay and the two uses for it, one to heat the water in the HW tank, one to provide heat in the bay via the heat exchanger. They are not in series, but each have their own loop with supply and return.
-
Thanks Jon.
Grant & Leslie Olson
2005 Liberty
Log in to reply.