(313D) Residential Air Conditioning Systems Mechanic Certification Practice Test
(313D) Residential Air Conditioning Systems Mechanic Certification 313D System Installation and Maintenance
What is the first step when installing a new residential air conditioning system?
Select your answer
A
Charging the refrigerant system
B
Conducting a site inspection
C
Connecting the electrical wiring
D
Testing the airflow
Need a hint?