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 8, Problem 1RQ
The low-pressure side of the system must not be pressurized to more than
A. 75 psig.
B. 200 psig.
C. the low-side design pressure.
D. atmospheric pressure.
Expert Solution & Answer
To determine
The maximum pressure up to which the low pressure side of the system can be pressurized.
Answer to Problem 1RQ
The maximum pressure up to which the low pressure side of the system can be pressurized
Explanation of Solution
The pressure used to pressurize a system must not exceed the lowest pressure for the system. The system which is being subjected to pressurization must be allowed to stand still for a time period of at least 10 minutes. This will allow for the equalization of the pressure in the system. After the equalization of the pressure, it is important to mark the high pressure gauge after tapping the gauge to settle down the needle.
The low pressure side of the refrigeration system has a normal working pressure of
The low pressure side of the refrigeration system includes evaporator, compressor and the suction line. The compressor head and the outlet or the discharge head are taken to be on the high pressure side of the system. The test pressure in the high pressure side of the refrigeration system for a majority of the refrigerants is minimum
Conclusion:
The maximum pressure up to which the low pressure side of the system can be pressurized
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Chapter 8 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 8 - The low-pressure side of the system must not be...Ch. 8 - Name and briefly describe the six classes of...Ch. 8 - The ________is both the greatest asset and the...Ch. 8 - Why should oxygen or compressed air never be used...Ch. 8 - List some of the foreign matter that may enter a...Ch. 8 - True or False: A vacuum pump can remove any type...Ch. 8 - Air in a refrigeration system causes which of the...Ch. 8 - The only two products that should be circulating...Ch. 8 - In order to remove moisture from a refrigeration...Ch. 8 - Are the best vacuum pumps one-stage or two-stage?
Ch. 8 - Name the two types of vacuum procedures used by...Ch. 8 - What can be done to get water out from under the...Ch. 8 - When evacuating a refrigeration system that has...Ch. 8 - What is today's most accurate type of deep vacuum...Ch. 8 - _________microns are in 1 inch.Ch. 8 - Briefly describe the method for cleaning up a...Ch. 8 - What is the advantage of using large gauge lines...Ch. 8 - Why is it important to change the oil on a vacuum...Ch. 8 - Describe the meaning of a deep vacuum, and explain...Ch. 8 - List the main advantages of a microfoam leak...Ch. 8 - What could an oily dust spot on a condenser or...Ch. 8 - Why should a condenser be covered with a sheet...Ch. 8 - Leaks that occur only when the unit is in...Ch. 8 - Briefly describe a combination-dependent leak.
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