A crankcase heater is typically used to prevent refrigerant mixing with compressor oil during periods of

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Multiple Choice

A crankcase heater is typically used to prevent refrigerant mixing with compressor oil during periods of

Explanation:
A crankcase heater is used to stop refrigerant from migrating into the compressor oil when temperatures are low. When ambient temperatures drop, refrigerant can condense and move into the crankcase, diluting the oil and causing lubrication problems or a rough startup. By warming the crankcase, the heater keeps the oil at a temperature that discourages refrigerant condensation and migration, protecting the compressor during periods of low ambient temperature. Moderate temperatures, high humidity, or rapid cycling don’t create the same risk in the crankcase, so they aren’t the condition this device is addressing.

A crankcase heater is used to stop refrigerant from migrating into the compressor oil when temperatures are low. When ambient temperatures drop, refrigerant can condense and move into the crankcase, diluting the oil and causing lubrication problems or a rough startup. By warming the crankcase, the heater keeps the oil at a temperature that discourages refrigerant condensation and migration, protecting the compressor during periods of low ambient temperature. Moderate temperatures, high humidity, or rapid cycling don’t create the same risk in the crankcase, so they aren’t the condition this device is addressing.

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