Author Question: Why is testing and balancing an important part of HVACR residential systems? A) Because HVACR ... (Read 161 times)

cdr_15 · **on:** Jul 24, 2018

Why is testing and balancing an important part of HVACR residential systems?

A) Because HVACR systems are not as efficient as they were in earlier decades
B) Because HVACR systems are the largest energy appliances in a residence and energy costs have increased
C) Because it is the first and last step a technician must perform when working on HVACR systems
D) Because all new home construction must be certified

Question 2

Just before charging the system with clean refrigerant, you should:

A) Install filter driers. B) Recover the refrigerant.
C) Evacuate the system. D) Flush the system.