How do evaporators in medium-temperature refrigeration cases normally defrost?
A) Small defrost gas burners
B) The case air circulates over the coil while the compressor is off.
C) Hot gas is bypassed around the condenser straight into the evaporator.
D) Electric heaters built into the evaporator coil
B
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Indicate whether the statement is true or false
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Answer the following statement true (T) or false (F)