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 15, Problem 2RQ
Two categories ofelectric controls are_________and________.
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Chapter 15 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 15 - Name three types of automatic controls.Ch. 15 - Two categories ofelectric controls...Ch. 15 - What circuit is energized with the thermostat Y...Ch. 15 - The component in the system that is energized when...Ch. 15 - The ________terminal must be energized in the...Ch. 15 - The hot circuit in the thermostat is the...Ch. 15 - Is the heat anticipator in series or parallel with...Ch. 15 - The cooling anticipator is wired A. in parallel...Ch. 15 - Which anticipator is adjustable, heat or cool?Ch. 15 - True or False: The indoor fan must always run...
Ch. 15 - True or False: When the control transformer is not...Ch. 15 - Which of the following should be turned off while...Ch. 15 - The _______diagram is used to locate different...Ch. 15 - To trace the circuits in the unit, the...Ch. 15 - Prob. 15RQCh. 15 - Prob. 16RQCh. 15 - Prob. 17RQCh. 15 - True or False: Open switches will always read...Ch. 15 - Explain why a service technician must always know...
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- - Industrial Motor Controls, 12.a. What is the purpose of thermostat number 2, IN7, in the mixing vat machine?A. This thermostat is used to monitor the temperature of the incoming fluids.B. This thermostat is used to prevent an over-temperature condition in the event thermostat one sticks open.C. This thermostat is used to turn off the mixing motor after the mixture reaches temperature.D. This thermostat is used to shut off the heater when the chemical mix reaches setpoint.12.b. Why are motor current readings from a frequency inverter not exact readings of motor current?A. Because the output of a frequency inverter is not a sinewaveB. Because a frequency inverter adds a DC voltage level to the AC waveformC. Because a frequency inverter uses a lower voltage sinewaveD. Because the inverter pulses the motor with various sinewave frequenciesarrow_forwardBlock diagram and explanation of the applications of open loop system: Automatic washing machine, Automatic toaster system, Traffic light controller and Furnace without thermostatic control but with timing devicearrow_forwardWhat is the effect of underdamped system?arrow_forward
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