Question 1 of 27070
Q
If a refrigeration compressor had a higher than normal suction pressure, the problem could be a result of which of the following?
A
a minor accumulation of air or non-condensable gases in the system
B
a constant loss of refrigerant
C
leaking compressor suction valves
D
a slightly higher than normal liquid level in the receiver
Question 1 / 270705eccef9ebacbc34ba4d46171
Question 1 of 270705eccef9ebacbc34ba4d46171

If a refrigeration compressor had a higher than normal suction pressure, the problem could be a result of which of the following?

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Question 1 of 27070
Q

If a refrigeration compressor had a higher than normal suction pressure, the problem could be a result of which of the following?

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🔍 Key Concepts

• Effect of suction valve leakage on compressor suction pressure and capacity • How refrigerant charge (too much or too little) typically affects suction vs. discharge pressures • Behavior of air/non‑condensables in a system (which side they tend to raise pressure on)

đź’­ Think About

• Think about which fault would allow gas to flow backwards or not be fully compressed on each stroke, and what that would do to suction pressure. • For each option, ask: would this mainly increase suction pressure, discharge pressure, or lower both? • Consider which problem would most directly reduce the compressor’s ability to pull the evaporator pressure down.

âś… Before You Answer

• Verify which condition causes the compressor to lose effective pumping capacity on the suction side. • Check your understanding of where non‑condensable gases accumulate and which pressure (suction or discharge) they influence most. • Confirm whether a loss of refrigerant is more likely to lower or raise suction pressure.