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).
Trace showing the Inspection/Maintenance 240 test. The test duplicates an urban test loop around Los ...
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The development and maintenance of malignant growth