Leaks Flashcards
Traces of oil are an indication of what?
A refrigerant leak.
What is the best way to locate the general area of a leak?
An electronic/ultrasonic leak detector.
What is the best way to pinpoint a leak?
Soap Bubbles
What can be added to the system before the nitrogen to help perform an electronic leak search?
A “Trace” amount of refrigerant.
What can pressurizing the system with air or oxygen cause?
A fire or explosion.
What is required if there is a large release of refrigerant in a confined area?
A Self Contained Breathing Apparatus (SCBA)
The leak rate only applies to what systems?
Systems containing 50 lbs. or more.
What is the leak rate for Commercial Cooling?
0.10 / 10%
What is the leak rate for Commercial Refrigeration?
0.20 / 20%
What is the leak rate for Industrial Process?
0.30 / 30%
When a system containing 50 lbs. or more has exceeded the threshold leak rate, and it will be retrofitted or replaced with an EXEMPT refrigerant, how long does the owner have to replace or retrofit it?
18 months
If a leak rate is surpassed, a repair must be made AND an initial leak test verification must be conducted within how many days for COMMERCIAL COOLING?
30 days
If a leak rate is surpassed, a repair must be made AND an initial leak test verification must be conducted within how many days for Industrial Process?
120 days
Follow up leak tests MUST be performed within how many days?
10 days
What is Mothballed?
To isolate and evacuate a leaking section of an appliance.
