Author Question: The HVACR technician's role in indoor air quality is to: A) Perform laboratory tests on collected ... (Read 44 times)

Beheh · **on:** Jul 24, 2018

The HVACR technician's role in indoor air quality is to:

A) Perform laboratory tests on collected material.
B) Install HEPA filters to alleviate all indoor air-quality concerns.
C) Communicate with the building owner and the occupants on how the interacting systems of a building affect indoor air quality.
D) Perform microscopic analysis to determine the origin of pollutants.

Question 2

When does the temperature differential initiate the defrost cycle?

A) When the air temperature drops below the coil temperature
B) When the coil and air temperature difference increases for a prolonged period of time
C) When the difference between the coil and outdoor air is constant
D) When there is any frost on the coil