Defrost heaters are used to

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Multiple Choice

Defrost heaters are used to

Explanation:
Defrost heaters melt frost on the evaporator coil, which clears the path for proper heat transfer and airflow. When frost blocks the coil, the system can’t release or absorb heat efficiently, making the refrigerant recovery process slower and the recovered gas cooler. By warming the evaporator during defrost, the coil returns to normal operation faster, so refrigerant can be recovered more quickly and the recovered refrigerant tends to be warmer as the system resumes its proper heat exchange. These heaters aren’t intended to save electricity, lower system pressure, or block non-condensables.

Defrost heaters melt frost on the evaporator coil, which clears the path for proper heat transfer and airflow. When frost blocks the coil, the system can’t release or absorb heat efficiently, making the refrigerant recovery process slower and the recovered gas cooler. By warming the evaporator during defrost, the coil returns to normal operation faster, so refrigerant can be recovered more quickly and the recovered refrigerant tends to be warmer as the system resumes its proper heat exchange. These heaters aren’t intended to save electricity, lower system pressure, or block non-condensables.

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