Piping Design and Installation 3-3

What is a pressure drop penalty in a refrigeration system?

• A performance issue due to pressure drop

• An increase in energy efficiency

• A type of refrigerant

• A decrease in refrigerant flow

Which factor does NOT affect pressure drop in a refrigeration system?

• Length and height of a run

• Color of the refrigerant

• Type of refrigerant used

• Ambient air temperature

What is the purpose of equivalent piping lengths for fittings?

• To calculate pressure drop accurately

• To simplify installation

• To reduce the cost of materials

• To increase the size of the pipe

What is the recommended maximum hanger spacing for piping?

• To support piping for strength

• To increase pressure drop

• To eliminate all noise

• To reduce refrigerant flow

What should the suction line slope towards?

• The evaporator

• The condenser

• The compressor

• The receiver

What is the primary function of a filter drier in a refrigeration system?

• To support the piping

• To reduce noise

• To clean the system of contaminants

• To increase refrigerant pressure

Where should the sight glass be installed?

• Before the compressor

• After the TXV

• Before the evaporator

• Downstream of the filter drier

What is the purpose of an oil separator?

• To increase refrigerant flow

• To monitor pressure levels

• To separate oil from refrigerant

• To cool the refrigerant

What should be done when brazing in the compressor?

• Heat the line set going into the stub

• Heat the stub directly

• Use cold water to cool the stub

• Apply heat to the compressor body

What is the recommended installation position for a TXV?

• Only horizontal

• Diagonal

• Only vertical

• Horizontal and vertical