OK, I have read about the use of a mixing valve. There is often one in the boiler return line to keep the boiler coils from having cold water introduced to them. I just don't see how a mixing valve would work in either the cold start mode or in the up to temperature mode.
Does the mixing valve produce an over temperature output when both inputs are above the set point?
If both inputs are below the set point does it do nothing? Or does it act like a closed valve (not likely)?
Thanks for the help
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Does the mixing valve produce an over temperature output when both inputs are above the set point?
If both inputs are below the set point does it do nothing? Or does it act like a closed valve (not likely)?
Thanks for the help
![shock !!! !!!](/talk/styles/default/xenforo/smileys/shock.gif)