When recovering refrigerant from a frost-free refrigerator, what step should be taken to handle possible trapped liquid?

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Multiple Choice

When recovering refrigerant from a frost-free refrigerator, what step should be taken to handle possible trapped liquid?

When refrigerant is being recovered from a frost-free refrigerator, liquid can become trapped in the evaporator. Turning on the defrost heater warms the evaporator and vaporizes any trapped liquid, so what’s drawn into the recovery system is in gas form. This helps prevent liquid refrigerant from entering the recovery machine or compressor, which can cause damage or safety issues and makes the recovery process safer and more efficient. Opening the freezer door doesn’t reliably vaporize the liquid and can disrupt pressures without solving the problem. Increasing or replacing the thermostat doesn’t address the trapped liquid either.

When refrigerant is being recovered from a frost-free refrigerator, liquid can become trapped in the evaporator. Turning on the defrost heater warms the evaporator and vaporizes any trapped liquid, so what’s drawn into the recovery system is in gas form. This helps prevent liquid refrigerant from entering the recovery machine or compressor, which can cause damage or safety issues and makes the recovery process safer and more efficient.

Opening the freezer door doesn’t reliably vaporize the liquid and can disrupt pressures without solving the problem. Increasing or replacing the thermostat doesn’t address the trapped liquid either.

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