R 410a - Study guides, Class notes & Summaries

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...

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 exceeds _________ of the charge per year? 15%

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 LEA...

Refrigeration technicians who violate the Clean Air Act can: - - Correct answer-Lose their EPA certification, be fined, be required to appear in Federal court. After 1995, any supplies of CFC refrigerants to service existing units in the USA can only come from: - - Correct answer-recovery and recycling. Refrigerant that is recovered can be returned to: - - Correct answer-the same system or other systems owned by the same person without restriction. Refrigerant can not be called "reclaimed...

EPA 608 (TYPE II) Exam COMPLETE SOLUTION ( A+ GRADED 100% VERIFIED) When a new system has been assembled, the first thing to do is? - ANS 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? - ANS 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) mus...

R-410A Certification Final / R-410A Safety & Training Combined Sets Examination Questions With Revised Correct Detailed Answers |ALREADY GRADED A+ PASS >> BRAND NEW VERSION!! STUDY MATERIAL 1. Hygroscopic - ANSWER the air. (of a substance) tending to absorb moisture from 2. Near-Azeotropic blend - ANSWER A blend that acts very much like an azeotrope but has a small volumetric composition change and temperature glide as it evaporates and condenses. 3. ...

Recovery cylinders used with R-410A must have a DOT rating of: - either "DOT 4BA 400" or "DOT 4BW 400" A system using R-410A refrigerant has bubbles in the sight glass. Technician A says that the system must be low on refrigerant. Technician B says that the bubbles could be caused by the blended refrigerant flashing in the increased volume of the sight glass. Who is correct? - Technician B only When charging a R-410A system that uses a thermostatic expansion valve, proper charge can be...

EPA SECTION 608 CORE (2021-2022 revision) A disposable cylinder should be reduced to what pressure before scrapping? a. 0 psig b. 20 psig c. 50 psig d. 80 psig A major system repair is being performed on a R-22 appliance. What CANNOT be done to recharge the appliance? a. Add R-22 after the repair is complete. b. Retrofit the unit to R-407C. c. Use recovered or recycled R-22 from the same owner. d. Top off the unit with R-410a. A refillable cylinder must not be filled above what ...

When a new system has been assembled, the first thing to do is? ans 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? ans 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 the charge per ...

R-410A