Much as a doctor performs tests to gather clues about a patient’s ailment, service technicians use tools and procedures to accurately pinpoint why an HVACR system will not function properly. The principles guiding these troubleshooting steps are universal, even if their implementation is not.
from Odor Management Plan in Controlling Smoke Odor http://bit.ly/2CRJVG3
via http://bit.ly/2R7558e
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