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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Chapter 19, Problem 2RQ
To determine
The components changed on a contactor for rebuilding purposes.
The components changed on a starter for rebuilding purposes.
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Chapter 19 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
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- When energizing or de-energizing a combination starter what safety precaution should always be taken?arrow_forwardWhat is the difference between a motor starter and a contactor?arrow_forwardWhen the starter spins but does not crank the engine, which of the following may be true? Defective starter relay Damaged flywheel teeth A faulty starter solenoid All of the abovearrow_forward
- While discussing a no-crank condition: Technician A says to verify the condition of the batten' before testing the starter motor Technician B says a scan tool may be used to check starter control circuit operation. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardA starter cranks, but cranks slowly. The shop performs a voltage drop on the ground and power side of the starter circuit and they both test good. Technician A says the battery may be bad. Technician B says the starter may be bad. Who is correct?arrow_forwardAssume that when the start button is pressed M starter does not energize. List seven possible causes for this problem?arrow_forward
- A push button manual starter has tripped on overload. Explain how to reset the starter so themotor can be restarted.arrow_forwardHow do you check for an open armature winding?arrow_forwardTechnician A checks a starters field coils for opens by connecting an ohmmeter between the coils' power feed wire and the field coil brush lead. Technician B checks a starters field coil for a short to ground by connecting an ohmmeter across the field coil brush lead and the starter housing. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forward
- Technician A checks a starter’s field coils for opensby connecting an ohmmeter between the coils’power feed wire and the field coil brush lead. TechnicianB checks a starter’s field coil for a short toground by connecting an ohmmeter across the fieldcoil brush lead and the starter housing. Who iscorrect?a. Technician Ab. Technician Bc. Both A and Bd. Neither A nor Barrow_forwardName two requirements that must be met before a motor can be used for wye-delta starting.arrow_forwardRefer to Figure 21–1 to answer the following questions. Assume that HOA SW 120 has been set in the auto position. List four ways by which coil CR-8 could be energized.arrow_forward
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