Preventive maintenance must be performed according to ________ ...

[dakota nelson]

Preventive maintenance must be performed according to ________ and warranty requirements.
 
  A) federal regulations B) documentation from the historical file
  C) company standards D) the manufacturer's instructions

Question 2

HVACR technicians must be certified by:
 
  A) The American Society of Heating, Refrigeration, and Air.
  B) The American Society of Heating, Refrigeration, and Air Conditioning Engineers (ASHRAE).
  C) An Environmental Protection Agency (EPA) certified testing organization.
  D) The Air Conditioning, Heating, and Refrigeration Institute (AHRI).

[kilada]

Answer to Question 1

D

Answer to Question 2

C