Which of the hand valve configurations for...

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Question 1 of 205eccef9dbacbc34ba4d460c0

Which of the hand valve configurations for the gauge manifold set is the correct set up for removing the remaining refrigerant from the gauge manifold set with the discharge service valve back-seated in preparation for removing the gauge manifold set? See illustration GS-RA-03.

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🔍 Key Concepts

• How a gauge manifold set internally connects the low side, high side, and center hose when each hand valve is opened or closed • What happens to trapped refrigerant in the hoses and manifold if you vent it vs. route it back into the system • The effect of a discharge service valve back-seated on the connection between the high-side line, the compressor, and the manifold

💭 Think About

• With the discharge service valve back-seated, which manifold port(s) are still actually connected to the refrigeration system so refrigerant can safely be drawn back in? • Looking at the arrows in A–D, in which configuration does all the trapped refrigerant in the manifold get a path to that still-connected side, instead of being isolated or left in part of the set? • For each option, trace where refrigerant in the high-side hose, low-side hose, and center hose would flow—does anything stay trapped with no way back to the system?

✅ Before You Answer

• Identify which hose or side is definitely still open to the system when the discharge service valve is back-seated • Confirm that the chosen diagram provides a continuous flow path from both the high-side and center portions of the manifold to that open side • Verify that your choice does not require venting to atmosphere and does not leave any part of the manifold isolated with refrigerant still inside

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