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    Refrigeration and Air Conditioning Technology
  4. Exam
    Exam 49: Operation, Maintenance, and Troubleshooting of Chilled-Water Air Conditioning Systems
  5. Question
    Reciprocating Chillers Have Crankcase Heaters to ____
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Reciprocating Chillers Have Crankcase Heaters to ____

Question 7

Question 7

Multiple Choice

Reciprocating chillers have crankcase heaters to ____.


A) preheat the chilled water for better efficiency
B) prevent refrigerant migration to the crankcase
C) preheat the compressor bearings for longer wear
D) minimize condenser subcooling

Correct Answer:

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