Choose the statements that best describe an on/off pressure control system. a. valve position is either fully on or fully off b. can cause rapid switching of valve positions c. maintains pressure between upper and lower limits d. valve position is between fully on or fully off e. maintains pressure at a specified setpoin

Choose the statements that best describe an on/off pressure control system. a. valve position is either fully on or fully off b. can cause rapid switching of valve positions c. maintains pressure between upper and lower limits d. valve position is between fully on or fully off e. maintains pressure at a specified setpoin

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter24: Expansion Devices

Section: Chapter Questions

Problem 10RQ: Explain why the entering liquid pressure has no effect on the opening force of a balanced-port TXV.

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