If an oil separator is not used, what should be installed in all vapor carrying lines?

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Multiple Choice

If an oil separator is not used, what should be installed in all vapor carrying lines?

Explanation:
Oil traps are used to intercept oil carried by refrigerant vapor when no oil separator is present. They provide a catch point in the vapor path where oil droplets coalesce and drain back to the compressor oil sump, helping keep the vapor line oil-free and ensuring proper lubrication and heat transfer. Without a separator, trapping oil in the vapor lines prevents oil migration to other components and reduces the risk of oil-related problems. Oil filters wouldn't address dispersed oil in vapor, check valves don't trap oil, and silencers only reduce noise.

Oil traps are used to intercept oil carried by refrigerant vapor when no oil separator is present. They provide a catch point in the vapor path where oil droplets coalesce and drain back to the compressor oil sump, helping keep the vapor line oil-free and ensuring proper lubrication and heat transfer. Without a separator, trapping oil in the vapor lines prevents oil migration to other components and reduces the risk of oil-related problems.

Oil filters wouldn't address dispersed oil in vapor, check valves don't trap oil, and silencers only reduce noise.

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