AK HVAC Practice Questions - Alaska Mechanical Administrator HVAC License Exam

What is the purpose of a mixing valve (tempering valve) in a hydronic radiant floor system?

To mix different types of fuel To blend hot boiler water with cooler return water to achieve the desired floor loop temperature To mix chemicals for water treatment To combine water from two different boilers

Correct Answer:

To blend hot boiler water with cooler return water to achieve the desired floor loop temperature

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