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 45, Problem 19RQ
Some freezers may have ______heaters to prevent sweat on the cabinet.
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What is a freeze frame
10. A crankcase heater is used to warm a compressor to
prevent the condensing of
the crankcase.
A. moisture inside
B. moisture outside
C. oil inside
-D. refrigerant inside
What should be done to prevent excessive
deposits and buildup within the cooling
system?
Select one:
a. Replace the coolant filter often
b. Flush or replace coolant every year
c. Use cold tap water when mixing
antifreeze and water
d. Use distilled water when mixing
antifreeze and water
Chapter 45 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 45 - The typical temperature inside the fresh-food...Ch. 45 - The operating condition for the single compressor...Ch. 45 - When the air temperature in a domestic freezer is...Ch. 45 - Typical head pressures should correspond to a...Ch. 45 - Using the temperature/pressure chart in Unit 3,...Ch. 45 - Using the pressure/temperature chart in Unit 3,...Ch. 45 - If a forced-draft evaporator fan motor is wired in...Ch. 45 - Frost accumulates on the evaporators of...Ch. 45 - The defrost cycle in a domestic refrigerator may...Ch. 45 - Prob. 10RQ
Ch. 45 - What are the two types of evaporators found in...Ch. 45 - Refrigerators currently being manufactured in the...Ch. 45 - Condensers in these refrigerators are...Ch. 45 - Home freezers are air-cooled and may have...Ch. 45 - Induced-draft condensers are typically used with...Ch. 45 - The capillary tube metering device is usually...Ch. 45 - Prob. 17RQCh. 45 - If the compressor has liquid refrigerant returning...Ch. 45 - Some freezers may have ______heaters to prevent...Ch. 45 - Welded ______sealed compressors are normally used...Ch. 45 - Special heaters called ______heaters are often...Ch. 45 - Prob. 22RQCh. 45 - Prob. 23RQCh. 45 - The adjustment device used for low atmospheric...Ch. 45 - Prob. 25RQ
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- Where would a technician encounter freezing temperatures when working with liquid refrigerant?arrow_forwardWhat type of drier may be used in the liquid line of a heat pump?arrow_forwardWhen assembling refrigerant lines on the job, the tubing should be kept _______. Select the answer below: A. Clean B. All of the above C. Free of kinks D. Dryarrow_forward
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- Describe what happens when an absorption chiller is operated when the cooling tower water is too cold.arrow_forwardThe plenum-mounted humidifier is installed in the ____plenum. A. supply B. return C. supply or returnarrow_forwardDescribe the operation of the evaporative system integrity check.arrow_forward
- What is the purpose of the cooling tower in a water-cooled system?arrow_forwardWhy do some condensers have to be cleaned with brushes and others with chemicals?arrow_forwarda) What type of insulation is used in modern freezers? b) Which is the most sensitive detector? Course Name : Thermofluidsarrow_forward
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