Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN: 9781305578296
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
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Textbook Question
Chapter 41, Problem 20RQ
If a condenser circuit breaker is tripped, you should
A. reset it.
B. check the suction pressure.
C. check the high-side pressure.
D. perform a resistance check of the compressor section.
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Chapter 41 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 41 - Before installing a gauge on the high-pressure...Ch. 41 - Capacitors should be shorted with a(n)...Ch. 41 - The high- and low-side pressures on an operating...Ch. 41 - Why do most air-conditioning systems not need a...Ch. 41 - A typical standard-efficiency evaporator under...Ch. 41 - The typical temperature difference between the...Ch. 41 - When the ambient outside air temperature isand the...Ch. 41 - When the outside ambient air temperature is 90F,...Ch. 41 - If a condensing pressure is 260 psig for R-22,...Ch. 41 - How is high efficiency accomplished in an...
Ch. 41 - True or False: When troubleshooting a small...Ch. 41 - The suction gas may have a high superheat if the...Ch. 41 - If the suction pressure is low and the suction...Ch. 41 - What electrical test instrument is used to measure...Ch. 41 - What electrical test instrument is used to measure...Ch. 41 - Most condensers will subcool the refrigerant to...Ch. 41 - What are two types of fixed-bore metering devices?Ch. 41 - It no crankcase heat is at the compressor, what...Ch. 41 - What is the purpose of the internal overload...Ch. 41 - If a condenser circuit breaker is tripped, you...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Briefly describe how the scroll compressor compresses refrigerant gas.arrow_forwardBriefly describe an oil-less refrigerant recovery unit.arrow_forwardIf a hot water reheat coil is installed with a two way modulating valve. A. The VAV box can only be used for a heating-only application . B. A variable volume circulating pump must be used. C. A constant volume circulating pump can be used. D. The VAV box can only be used for a cooling-only applicationarrow_forward
- 17. Which of the following relief valves is designed to vent refrigerant under excessive pressure and then close when the system pressure has been lowered? A. Fusible plug. B. Manifold valve. ytor C. Rupture disc. D. Spring-loaded relief valve. e quicaarrow_forwardThe approach temperature for the evaporator isA. the difference between the suction and head pressuresconverted to temperature.B. the difference between the refrigerant boiling temperatureand the suction-line temperature.C. the difference between the refrigerant boiling temperatureand the inlet water temperature.D. the difference between the refrigerant boiling temperatureand the leaving-water temperature.arrow_forwardDefine condensers.arrow_forward
- If a forced-draft evaporator fan motor is wired in parallel with the compressor, when will it run?arrow_forwardTechnician A feels up and down the face or along the return bends of the condenser for a temperature change and says that there should be a gradual change from hot to warm from the bottom to the top. Technician B says that a restriction in the condenser will be evident by a sudden change in temperature. Who is correct? Technician A only Technician B only Both A and B Neither A nor Barrow_forwardWhy should a condenser be covered with a sheet before leak checking it with an electronic detector?arrow_forward
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