Hvacr unit 14 - Study guides, Class notes & Summaries

HVACR UNIT 14 EXAM LATEST UPDATE...

HVACR UNIT 14 EXAM QUESTIONS AND ANSWERS #12

NATE Air Conditioning and Heat Pump Exam Questions and Answers Updated (GRADED A+) The maximum sensible cooling capacity of a heat pump should be within ______% of the calculated sensible heat gain of a structure with a large heating load. - ANSWER- +25% The combined output of a heatpump and its auxiliary heat should not exceed the calculated heat loss of a home by more than ____%. - ANSWER-15% What amount of auxiliary electronic heat is needed when the output of a heat pump on a design d...

UNIT 14 REVIEW QUESTIONS(HVACR) QUESTIONS AND ANSWERS #23

HVACR CONTROLS UNIT 15 EXAM QUESTIONS AND ANSWERS #14.

Which of the following factors affects a customers level of comfort? All of the above A cooling load calculation estimates the sensible heat gain of the structure. The cooling-only system should be within _____% of this calculated value. +15% The maximum sensible cooling capacity of a heat pump should be within ______% of the calculated sensible heat gain of a structure with a large heating load. +25% The combined output of a heatpump and its auxiliary heat should not exc...

An ----- should be taken and ----- if a system has a major component failure. - Answer oil sample analyzed (evacuation) The system vacuum gauge should be connected ----- from the vacuum pump. - Answer far as possible To receive any certification, which section must be passed? - Answer Section A (core) Always review the -----, when working with any solvents, chemicals, or refrigerants - Answer material safety data sheets Cylinders should be transported in an ----- position - Answer u...

As of what date did it become unlawful to release Class 1 and Class II refrigerants to the atmosphere? a. July 1, 1992 b. July 1, 1993 c. November 14, 1994 d. January 1, 1996 - Answer a. July 1, 1992 What is the ozone layer and why is it important to us on Earth? a. Thin layer of R-22 in the atmosphere that filters UV. b. Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the stratosphere layer that extends about 6 to 30 miles above earth c. Thin layer of ...

EPA 608 Guaranteed Success 1. Definition of Reclaiming: - To process refrigerant to a level equal to new (virgin) product specifications as determined by chemical analysis defines: ️ Reclaiming. 2. Disposable Cylinder Disposal Method: - The proper disposal method for disposable cylinders is to ️ recover any remaining refrigerant and then render the cylinder useless, then recycle the metal. 3. Definition of Recycling: - Clean refrigerant for reuse by separating the oil from the refr...

UNIT 1 REVIEW QUESTIONS ANSWER KEY 1-1) List some of the different ways that homes and buildings may be heated. Wood, gas, oil, electric, solar, heat pumps, and geothermal heating systems are used. 1-2) What were some of the primary heating fuels that early civilizations used? Wood, peat, and coal remained the primary heating fuels for centuries. 1-3) When is it believed that ice was first artificially made for food storage? First evidence of man making ice appeared more than 3,000 years ...