mixing valve

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    3 way mixing valve questions

    I'm using a Caleffi 5231 3 way mixing valve and having trouble understanding how these things work. This style has the numbered knob on top...e.g. 1 is coolest, 7 is hottest. It was set by plumber upon install at #3 on the dial (supposedly 117 degrees)...I've moved it to 4.5 (125 degrees) The...
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