Understood on the addition of new fresh cold when the fixtures demand water.
I guess the scenario that I don't yet understand is when the system lies unused for say 2-3 days and the solar thermal gets the whole tank up to 90 Degrees Celsius. With the circulation loop on (and the mix valve set to say 50 Degrees Celsius, what happens?
In this scenario, no water leaves the system so no new fresh cold should come in but as the re-circ loop is highly insulated, even the return from the re-circ will not be low enough to mix down to 50.
Perhaps I have a fundamental misunderstanding - if so - my apologies - I'm keen to learn and understand :)
Hi Cody,
Thanks for coming back to me - much appreciated.
Understood on the addition of new fresh cold when the fixtures demand water.
I guess the scenario that I don't yet understand is when the system lies unused for say 2-3 days and the solar thermal gets the whole tank up to 90 Degrees Celsius. With the circulation loop on (and the mix valve set to say 50 Degrees Celsius, what happens?
In this scenario, no water leaves the system so no new fresh cold should come in but as the re-circ loop is highly insulated, even the return from the re-circ will not be low enough to mix down to 50.
Perhaps I have a fundamental misunderstanding - if so - my apologies - I'm keen to learn and understand :)
Thanks Cody!
Regards,
Saul