The fluid used as a source of actuating...

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Question 1 of 2066636eee28f7522a1c51e922

The fluid used as a source of actuating power against the underside of the unloader power element piston of the refrigeration compressor capacity control mechanism illustrated is obtained from where? Illustration RA- 0013

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Question 1 of 20

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🔍 Key Concepts

• Trace the control oil pressure line on the illustration from its origin to the underside of the unloader power element piston. • Note the color code legend distinguishing oil pump pressure, control oil pressure, and crankcase pressure. • Compare what type of fluid (oil vs. refrigerant gas or liquid) is shown entering the unloader power element.

💭 Think About

• Follow the piping shown feeding beneath the unloader power element piston: where does that specific line start on the left side of the drawing? • Ask yourself whether the actuating medium is refrigerant or lubricating oil, based on the labels and color key. • Look at the top center of the drawing: what component name is written at the point where the pressure feeding the unloader system is first taken off?

✅ Before You Answer

• Verify which colored line actually connects to the underside of the unloader power element piston (not to the crankcase or discharge line). • Confirm the label where that line originates (e.g., "From ______" at the top of the illustration). • Make sure the source you choose matches a pressurized oil supply, not a refrigerant gas or liquid source.

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