Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN: 9781337399128
Author: Russell E. Smith
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 6, Problem 18RQ
With the fan switch in the “on” position, the indoor fan will __________.
- a. run only when the thermostat is closed
- b. run when the temperature exceeds 95°F
- c. run continuously
- d. none of the above
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
If the thermostat contacts are closed the compressor and the condenser fan motor are not operating, and all the other loads are operating properly, which might be the problem?
A. A bad high pressure safety switch.
B. A bad low pressure switch
C. Both A. and B.
D. A bad thermostat
to run
d. both a and b
44. Ifa thermostatic expansion valve's thermal bulb came loose from the suction line at the outlet of the
evaporator, whích of the following could result?
The bulb pressure would increase and the c.
thermostatic expansion valve would
open.
b. The superheat in the evaporator would
decrease.
a.
Liquid refrigerant would flow back to the
compressor.
d.
All of the above are correct.
45. If the thermal bulb assembly develops a leak, what will occur?
All of the system's refrigerant will leak
a.
The valve will open to allow more
c.
refrigerant to flow.
d. It will have no effect on system
operation.
out.
b. The bulb pressure will reduce and the
valve will close.
46. The purpose of an externally equalized thermostatic expansion valve is to
compensate for excessive evaporator
pressure drop
b. allow system to equalize faster
a.
prevent the expansion valve from
frosting up
d.
c.
allow refrigerant to expand in the
compressor
47. The primary function of an expansion device is…
What is the primary purpose of a thermostat
jiggle valve?
Select one:
a. To act as a bypass for coolant
b. To relieve water pump pressure
under load
c. To ensure coolant flows the correct
direction
d. To aid in bleeding air from the
system
Chapter 6 Solutions
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
Ch. 6 - Why should an air-conditioning technician learn to...Ch. 6 - Briefly explain the layout of a schematic diagram.Ch. 6 - Most schematic diagrams are made up of _____. a....Ch. 6 - Schematic diagrams break the wiring of control...Ch. 6 - Draw the symbols for the following components. a....Ch. 6 - What is the name of an appliance that is used to...Ch. 6 - What is the position of the control switch if the...Ch. 6 - Prob. 8RQCh. 6 - True or False: The evaporator fan motor is...Ch. 6 - What electrical component initiates the defrost...
Ch. 6 - The thermostat of the commercial freezer in Figure...Ch. 6 - What is the purpose of the fan switch in Figure...Ch. 6 - If the temperature in the furnace schematic shown...Ch. 6 - What is the purpose of the transformer in Figure...Ch. 6 - True or False: The system in Figure 6.28 is using...Ch. 6 - The HP and LP switches are connected in __________...Ch. 6 - The contactor is controlled by __________. a. the...Ch. 6 - With the fan switch in the on position, the indoor...Ch. 6 - The compressor and condenser fan motor start...Ch. 6 - The compressor and condenser fan motor are...Ch. 6 - Prob. 21RQCh. 6 - Prob. 22RQCh. 6 - Explain why the lockout relay coil energizes...Ch. 6 - True or False: The first- and second-stage cooling...Ch. 6 - True or False: A two-stage cooling thermostat...Ch. 6 - What is the purpose of the defrost cycle of a heat...Ch. 6 - What two factors initiate the defrost mode in the...Ch. 6 - What type of thermostat is used with the heat pump...Ch. 6 - Explain the operation of the switchover valve and...Ch. 6 - The reversing-valve solenoid is energized on the...Ch. 6 - The defrost cycle of the heat pump schematic in...Ch. 6 - What is a pump-down system and why is it used in...
Knowledge Booster
Learn more about
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
- If the compressor and condenser fan motor will not operate but the indoor fan motor is operating, what would be the probable cause of the malfunction? a. Bad contactor coil b. Bad thermostat c. Bad condenser fan motor d. Bad compressorarrow_forwardwhere is th sensing bulb on a thermostatic expansion valve mounted?arrow_forwardWhat is the maximum amperage usually encountered by a low-voltage thermostat?arrow_forward
- The ________terminal must be energized in the thermostat for the heat to start.arrow_forwardLow-ambient(switch)arrow_forwardWhich of the following statements is false? The condenser is normally mounted just in front of the radiator. The receiver/dryer is a storage tank for the liquid refrigerant from the condenser. An accumulator is not used in any system with a receiver/dryer. All of the above.arrow_forward
- Select the most accurate system from the following, O a. Lamp with on/off switch O b. Room heating system O c. Traffic light O d. Air conditionerarrow_forwardWhy is a low-voltage thermostat normally more accuratethan a high-voltage thermostat?arrow_forwardA disadvantage of a central forced-air electric furnace is that A. there is no zone control for individual rooms. B. a thermostat must be installed in each room. C. only line-voltage thermostats can be used. D. it is difficult to add air-conditioning (cooling)arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Refrigeration and Air Conditioning Technology (Mi...Mechanical EngineeringISBN:9781305578296Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill JohnsonPublisher:Cengage Learning
Understanding Motor ControlsMechanical EngineeringISBN:9781337798686Author:Stephen L. HermanPublisher:Delmar Cengage Learning
Welding: Principles and Applications (MindTap Cou...Mechanical EngineeringISBN:9781305494695Author:Larry JeffusPublisher:Cengage Learning
Refrigeration and Air Conditioning Technology (Mi...
Mechanical Engineering
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:Cengage Learning
Understanding Motor Controls
Mechanical Engineering
ISBN:9781337798686
Author:Stephen L. Herman
Publisher:Delmar Cengage Learning
Welding: Principles and Applications (MindTap Cou...
Mechanical Engineering
ISBN:9781305494695
Author:Larry Jeffus
Publisher:Cengage Learning
Hydronics Step by Step; Author: Taco Comfort Solutions;https://www.youtube.com/watch?v=-XGNl9kppR8;License: Standard Youtube License