Epa 608 type iii - Study guides, Class notes & Summaries

Before recovering refrigerant from a chiller suspected of having tube leaks,... - ANSWER ...drain the water sides of the evaporator and condenser. Draining the water sides helps to avoid the introduction of additional water into the system cause by the evacuation process and to prevent the water from freezing as the refrigerant evaporates during recovery. How can you pressurize a low-pressure chiller to make a non-major repair? - ANSWER Warm up the system. Under EPA regulations, you may wa...

Where do leaks commonly occur in low pressure systems? a. Evaporator b. Condenser c. Purge unit d. Gaskets or fittings - ANSWER d. Gaskets or fittings Where do leaks commonly occur in open-drive type compressor systems? a. Evaporator b. Condenser c. Shaft seal d. Cooling tower - ANSWER c. Shaft seal Does refrigerant go out of the system in low pressure systems or does air and moisture go in? a. Refrigerant escapes through low pressure leaks. b. Air and moisture enter the refrige...

EPA 608 Type III Exam | Questions and Answers Graded A+ | Latest 2024 EPA 608 Type III Exam | Questions and Answers Graded A+ | Latest 2024 EPA 608 Type III Exam | Questions and Answers Graded A+ | Latest 2024

A typical setting for the high pressure cut-out control on a recovery unit used for evacuating the refrigerant from a low pressure chiller is: - ANSWER C) 10 psig. A charged low pressure refrigeration system can be efficiently leak checked by: - ANSWER D) raising system pressure by heating with circulated hot water or heating blankets. The existence of air in a low pressure system, causes __________. - ANSWER C) high head pressure. Which safety precaution should be adhered to for low pr...

EPA 608 TYPE III SAMPLE TEST QUESTIONS AND ANSWERS #23

Identify the pressure corresponding to 32 degrees F for R-123: ________. a) 23 inches of Hg vacuum b) 20 inches of Hg vacuum c) 17 inches of Hg vacuum d) 11 inches of Hg vacuum - ANSWER b) 20 inches of Hg vacuum A hydrostatic tube test kit is used to: _________. a) blow all water from the tubes b) remove any water from the machine c) vent refrigerant d) determine if a tube leaks - ANSWER d) determine if a tube leaks Excessive running of a purge system on a low pressure chiller ...

EPA 608 Type III Exam Questions and Answers

What do R-11 and R-123 refrigerants have in common? A. They are oxygen depleting B. They are Class I and II substances as defined by the EPA C. Both A and B D. Neither A nor B - ANSWER C. Both A and B What is the required evacuation level for recovering refrigerant from a low-pressure appliance with a recovery machine manufactured before November 15, 1993? A. 0 psig B. 4" Hg C. 10 A Hg D. 25" Hg - ANSWER D. 25" Hg How is frost best removed from a sight glass? A. reverse ...

Identify the pressure corresponding to 32 degrees F for R-123: ________. A) 23 inches of Hg vacuum B) 20 inches of Hg vacuum C) 17 inches of Hg vacuum D) 11 inches of Hg vacuum - answer-b) 20 inches of Hg vacuum A hydrostatic tube test kit is used to: _________. A) blow all water from the tubes B) remove any water from the machine C) vent refrigerant D) determine if a tube leaks - answer-d) determine if a tube leaks Excessive running of a purge system on a low pressure chiller ...

EPA 608 Type III Exam | Questions and Answers Graded A+ | Latest 2024 EPA 608 Type III Exam | Questions and Answers Graded A+ | Latest 2024 EPA 608 Type III Exam | Questions and Answers Graded A+ | Latest 2024