which condition requires accessing both the high and low side of the system for refrigerant recovery when using the system-dependent (passive) recovery process?
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What type of appliances are technicians certified to charge…
What type of appliances are technicians certified to charge and open after passing the Type 1 examination?
Excessive running of a purge system on a low-pressure chille…
Excessive running of a purge system on a low-pressure chiller generally indicates what condition?
Which of the following is NOT required for an appliance that…
Which of the following is NOT required for an appliance that is using an ozone-depleting refrigerant to be mothballed (thereby extending the leak repair deadline)?
Which of the following refrigerants has the lowest ozone dep…
Which of the following refrigerants has the lowest ozone depletion potential?
It is best practice to use dry nitrogen to break the vacuum…
It is best practice to use dry nitrogen to break the vacuum when dehydrating by the triple evacuate method. However, it;
Which type of refrigerant is the most harmful to stratospher…
Which type of refrigerant is the most harmful to stratosphere ozone?
How long must a technician evacuating refrigerant from appli…
How long must a technician evacuating refrigerant from appliances with a full charge of more than 5 pounds and less than 50 pounds that are being disposed of keep records of the event?
What is the term used to describe the fact that a refrigeran…
What is the term used to describe the fact that a refrigerant blend has a range of bubble or dew points at constant pressure?
Which type of refrigerant typically HAS THE LOWEST WARMING P…
Which type of refrigerant typically HAS THE LOWEST WARMING POTENTIAL?