Question

When a certified person determines there's no refrigerant remaining in a system, they shall:

a) Report to the Ministry of the Environment
b) Remove all service hoses
c) Confirm the absence of refrigerant in writing
d) Both b and c

Answer 1

The certified person must remove all service hoses and confirm in writing the absence of refrigerant when they ascertain that a system has no refrigerant remaining.

Step-by-step explanation:

When a certified person determines there's no refrigerant remaining in a system, the correct actions they should take are to remove all service hoses and confirm the absence of refrigerant in writing. This ensures that there is a recorded verification of the system being devoid of any refrigerants, which could have environmental regulations concerning their proper disposal and handling. Therefore, the correct answer is 'd) Both b and c'.