R 410a - Study guides, Class notes & Summaries

EPA Certification Exam (New 2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Graded A QUESTION 1 What should a technician do if they discover that some R-410A was added to an R-22 system? Answer: Recover the mixture in a separate recovery tank. QUESTION What factor does NOT affect the speed of evacuation? Answer: The brand of micron gauge used. QUESTION Which of the following is NOT a recommended safety practice when operating refrigerant ...

When a new system has been assembled, the first thing to do is? - correct answer Pressurize the system with an inert gas & leak check. After installation of a field-piped R-410A split heat pulp, the unit should first be? - correct answer Pressurized with nitrogen then leak checked. The EPA regulations require that any appliances containing more than 50 pounds of refrigerant (except for commercial & industrial process refrigeration) must be repaired when the leak rate exceeds _________ of t...

When a new system has been assembled, the first thing to do is? - CORRECT ANSWER Pressurize the system with an inert gas & leak check. After installation of a field-piped R-410A split heat pulp, the unit should first be? - CORRECT ANSWER Pressurized with nitrogen then leak checked. The EPA regulations require that any appliances containing more than 50 pounds of refrigerant (except for commercial & industrial process refrigeration) must be repaired when the leak rate exceeds __...

EPA 608 Type 2 Exam Questions with Verified Answers . When a new system has been assembled, the first thing to do is? Pressurize the system with an inert gas & leak check. After installation of a field-piped R-410A split heat pulp, the unit should first be? Pressurized with nitrogen then leak checked. The EPA regulations require that any appliances containing more than 50 pounds of refrigerant (except for commercial & industrial process refrigeration) must be repaired when the leak rate ...

EPA Type 2 Questions and Answers Already Graded A Heat pumps that have been retrofitted from R22 to R407C should be leak checked with: pressurized nitrogen When a new system has been assembled, the first thing to do is: pressurize the system with inert gas and leak check EPA regulations require that leaking commercial or industrial process refrigeration equipment must be repaired when the leak rate exceeds______ of the charge per year. 35% Prior to replacing the condenser coil in a high pres...

HVAC UNIT 3 REVIEW TEST WITH COMPLETE SOLUTIONS Ice melts in ice boxes because a. heat flows through the insulated walls. b. heat flows through the doorway when it is opened. c. heat is moved into the box when warm food is placed in it. d. All of the above. D High-temperature refrigeration is that produced by a. heat from a furnace. b. an air-conditioning system, c. the vegetable cooling system of a refrigerator. d. the freezer section of a refrigerator. B A ton of refrigerat...

According to the SMC group, #2 refrigerants are - Toxic, flammable, explosive under certain conditions, and includes ammonia and SO. A hermetic system is a totally enclosed refrigeration system when the - Motor and compressor are sealed within the same system with the refrigerant. A heat pump has what type of valve that redirects refrigerant flows from heating to cooling? - A four way reversing valve A capillary tube system responds to an overcharge by - Head pressure. A capillary tube sy...

The state of the refrigerant entering the metering device is? - answer-a subcooled high pressure liquid. What type of refrigerant is used in very high-pressure appliances? - answer-r-503 What type of refrigerant is used in medium pressure appliances? - answer-r-500 What type of refrigerant is used in high pressure appliances? - answer-r-410a and r-22 What device is located at the end of the liquid line? - answer-the expansion device. What type of refrigerants are the least harmful...

EPA 608 (TYPE II) Exam Questions And Answers When a new system has been assembled, the first thing to do is? - Pressurize the system with an inert gas & leak check. After installation of a field-piped R-410A split heat pump, the unit should first be? - Pressurized with nitrogen then leak checked. The EPA regulations require that any appliances containing more than 50 pounds of refrigerant (except for commercial & industrial process refrigeration) must be repaired when the leak rate exc...

Refrigerant 410A Certification Questions and Answers 100% Solved -Suva 410a -AZ-20 -Puron ️️R-410a is also known as? 0.3 ️️The temperature glide for R-410a is less than _____ degrees Fahrenheit over air conditioning and refrigeration operating ranges. -Can be irritating to the skin -Is hydroscopic -Has improved heat transfer characteristics over mineral oils ️️Polyol Ester (POE): 50 psig ️️The low pressure control on R-410a systems will open at: Absolute discharge pr...