Week 4 Ch. 27 HW Refrigerant Leak Testing

What is the purpose of the pressure regulator on the nitrogen cylinder? What page in the book is the answer found?

The refrigeration system data plate states that the low-side test pressure is 150 psig and the high-side pressure is 450 psig. What does that mean?

What is the maximum pressure that should be used for leak testing a refrigeration system with a hermetic compressor?

What is the difference between corona discharge and heated diode electronic leak detectors?

How does an LED refrigerant leak detector work?

What refrigerants can be detected with a halide torch?

What is the advantage of an ultrasonic leak detector?

How can dye indicate leaks?

Why does increased purge operation indicate a leak in the low side of a low-pressure system?

What method is recommended for raising the pressure of the refrigerant in a low-pressure chiller?