Author Question: What does a mixing valve do in a hydronic heating system? A) it mixes hot water from the boiler ... (Read 61 times)

LCritchfi · **on:** Jul 27, 2018

What does a mixing valve do in a hydronic heating system?

A) it mixes hot water from the boiler with cold tap water
B) it mixes hot water from the boiler with cooler return water
C) it mixes water from two zones to return to the boiler
D) it mixes cold feed water to the boiler with warmer return water

Question 2

Sensors for the mixing valve control are located

A) outside the building and on the boiler.
B) outside the building and on the supply line.
C) outside the building, on the supply line, and on the boiler.
D) on the supply line and on the boiler.