Unit 22 Refrigeration System Flashcard

Front

What are the symptoms of low suction pressures in a refrigeration system?

Back

Symptoms include iced coils, short cycling, and inefficient cooling.

Front

How is a shell-and-tube condenser cleaned?

Back

It is cleaned with a brush after removing the end caps.

Front

What is the typical design temperature for water entering a recirculating water system condenser?

Back

85°F.

Front

What is the typical temperature rise across a condenser in a refrigeration system?

Back

10 degrees.

Front

What does the refrigerant do in a condenser?

Back

The refrigerant rejects heat.

Front

What effect do mineral deposits have on the water side of a water-cooled condenser?

Back

They act as an insulator.

Front

What is the role of a condenser in a refrigeration system?

Back

To reject heat from the refrigerant.

Front

What happens to the refrigerant in a condenser?

Back

It changes from a vapor to a liquid.

Front

What is the relationship between head pressure and suction pressure in a refrigeration system?

Back

Low head pressures can lead to low suction pressures.

Front

What is the importance of maintaining proper water temperature in a condenser?

Back

It ensures efficient heat exchange and system performance.