A hot-gas muffler that is not properly installed may trap which substance?

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Multiple Choice

A hot-gas muffler that is not properly installed may trap which substance?

Explanation:
Oil return is the key idea here. A hot-gas muffler dampens pulsations in the discharge line, but its cavity can act as an oil trap. If the muffler isn’t installed correctly—such as with improper orientation or slope—oil carried with the refrigerant can settle in the muffler and fail to drain back to the compressor. That trapped oil reduces lubrication for the compressor and can lead to wear or failure. While hot gas, refrigerant, and water flow through the system, oil is the substance most likely to accumulate in a misinstalled muffler.

Oil return is the key idea here. A hot-gas muffler dampens pulsations in the discharge line, but its cavity can act as an oil trap. If the muffler isn’t installed correctly—such as with improper orientation or slope—oil carried with the refrigerant can settle in the muffler and fail to drain back to the compressor. That trapped oil reduces lubrication for the compressor and can lead to wear or failure. While hot gas, refrigerant, and water flow through the system, oil is the substance most likely to accumulate in a misinstalled muffler.

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