Hvac r 410a - Study guides, Class notes & Summaries

A project team is assessing existing luminaires for Light Pollution Reduction and found some fixtures emit light at a vertical angle more than 90 degrees from straight down. What statement is true regarding the project's ability to earn the credit? - Answer-The team must retrofit or replace the non-compliant fixtures to earn the credit An office building has six individual workstations, two private offices, and a conference room. What lighting control configuration would meet the req...

FCC HVAC Study Guide Questions And Answers what is the name of EPA's program that identifies refrigerants with lower overall risks to human health and the environment? - ANSWER- the Significant New Alternatives Policy(SNAP) Program. what is a lawful use of HCFC-22? - ANSWER- Charging any new system designed for R-407c. how does cooling occur in a direct expansion vapor compression refrigeration system? - ANSWER- when the liquid refrigerant is vaporized. which process applies to cleanin...

FCC HVAC Study Guide Questions And Answers what is the name of EPA's program that identifies refrigerants with lower overall risks to human health and the environment? - ANSWER- the Significant New Alternatives Policy(SNAP) Program. what is a lawful use of HCFC-22? - ANSWER- Charging any new system designed for R-407c. how does cooling occur in a direct expansion vapor compression refrigeration system? - ANSWER- when the liquid refrigerant is vaporized. which process applies to cleanin...

FCC HVAC Study Guide Questions And Answers what is the name of EPA's program that identifies refrigerants with lower overall risks to human health and the environment? - ANSWER- the Significant New Alternatives Policy(SNAP) Program. what is a lawful use of HCFC-22? - ANSWER- Charging any new system designed for R-407c. how does cooling occur in a direct expansion vapor compression refrigeration system? - ANSWER- when the liquid refrigerant is vaporized. which process applies to cle...

a (Centrifugal) Which of the following compressors are considered a dynamic compressor? a. Centrifugal b. Reciprocating d. Rotary c. Scroll b (Superheated vapor / sub cooled liquid) What is the condition of the refrigerant as it enters and leaves the condensing coil of a typical light commercial HVAC system? a. Vapor / liquid b. Superheated vapor / sub cooled liquid c. Saturated vapor / saturated liquid d. Hot gas / cool liquid b (Thermal expansion valve) Which one o...

ater. B. will not dissolve in water. C. will rain out of the atmosphere. D. is heavier than air and cannot rise to the stratosphere. A. R-22 B. R-134a C. R-410A D. R-1233zd A. yellow body and grey top. B. grey body and yellow top. C. green body and yellow top. D. orange body and grey top. EPA 608 Practice Test Take this free EPA 608 practice exam to see the types of questions that will be on an actual EPA 608 certification exam. The Federal Clean Air Act, under Section 8, requires...

CFC Certification: Core LATEST VERSION.The greatest effect refrigeration has is on the ____________ - ANSWERStratosphere What is the nickname of the stratosphere? - ANSWEREarth's security blanket The stratosphere is __________ ______ above sea level - ANSWER10-30 miles The stratosphere is made of _____ - ANSWEROzone What is the function of the stratosphere? - ANSWERTo protect us from UV radiation and maintain stable earth temperatures Effects of Ozone Depletion? - ANSWERCrop loss...

a (Centrifugal) - ANSWER-Which of the following compressors are considered a dynamic compressor? a. Centrifugal b. Reciprocating d. Rotary c. Scroll b (Superheated vapor / sub cooled liquid) - ANSWER-What is the condition of the refrigerant as it enters and leaves the condensing coil of a typical light commercial HVAC system? a. Vapor / liquid b. Superheated vapor / sub cooled liquid c. Saturated vapor / saturated liquid d. Hot gas / cool liquid b (Thermal expansion valve) - AN...

How can you speed up the removal of the refrigerant charge from system? - ANSWER Cooling the recovery cylinder to lower its pressure. How long must an HVAC servicing company keep records for each disposed appliance with a charge between 5 and 50 lbs? - ANSWER 3 years (Both answers) Recovered refrigerant may contain which of the following impurities? - ANSWER Acids, Moisture, and Oil What area of a refrigeration system does oil foaming usually occur? - ANSWER Compressor What is a deep...

What is typically used on small appliances as a service aperture or other device for adding or removing refrigerant? a. A straight piece of tubing that is entered using a piercing access tube. b. A line located 15 inches below the compressor. c. A valve installed at the factory which has a ¼ inch diameter and machine threads. d. A service aperture is not present because small appliances are exempt from this requirement. - ANSWER A What type of appliances are technicians certified to serv...