🔍 Key Concepts

• Locate components before and after valves 26 and 34 in the refrigeration cycle (compressor, condenser, receiver, expansion valve, evaporator). • Think about where high-pressure vs low-pressure sides of the system are divided, and what each side normally contains (liquid or gas). • Use the standard sequence of a basic refrigeration cycle: compressor → condenser → receiver → expansion device → evaporator → back to compressor.

💭 Think About

• Are valves 26 and 34 located on the side of the system that has just left the condenser/receiver, or the side that has just left the evaporator? What does that tell you about pressure? • At the point where refrigerant passes through 26 and 34, has it already been expanded through the throttling/expansion device, or is that device still downstream? • In a typical refrigeration system, where would you expect to find a line of predominantly liquid refrigerant: before or after the expansion valve?

✅ Before You Answer

• Confirm whether 26 and 34 are upstream or downstream of the expansion valves (27 and 36). • Verify if these lines are on the high-pressure liquid line coming from the condenser/receiver or on the low‑pressure suction line going back to the compressor. • Make sure you’re thinking of the refrigerant’s state right at those valve symbols, not after it passes through other downstream components.