🔍 Key Concepts

• Trace the compressor discharge line (high-pressure, high-temperature side) from the compressor to see where noise and pulsations would be reduced. • Understand that a discharge muffler is usually placed close to the compressor outlet to smooth out pressure pulsations, often appearing as a small vessel or canister in the discharge line. • Differentiate between a receiver/accumulator, condenser/evaporator coils, and any small inline filters or sight glasses shown in the system schematic.

💭 Think About

• Starting at component 1 (the compressor), which numbered item is the first vessel or canister connected directly into the hot gas discharge line? • Which numbered components are clearly large storage tanks or coils, and which one looks like a smaller chamber specifically in the discharge line rather than the suction line? • How would the location of a muffler differ from a liquid receiver or oil separator in a refrigeration-type schematic like this?

✅ Before You Answer

• Verify which line is the discharge (hot gas) line versus which is the suction/return line by following color or flow direction. • Confirm that the candidate item is upstream of the condenser and downstream of the compressor outlet, not in the liquid or suction line. • Check that the shape/size of the chosen number is consistent with a small cylindrical muffler, not a large receiver, condenser coil, or simple valve/fitting.