MovinCool Classic 40 Service Manual - Manual (Page 20)

Operation Section
20
4.3 Condenser
• The condenser is a heat exchanger with copper tubes that are covered with thin aluminum
projections called plate fins.
• Heat is given off and absorbed by air being pulled across the condenser fins by the propeller fan.
The air is then expelled through the exhaust air duct.
4.4 Capillary Tube
• The capillary tube is a long thin tube that
utilizes line flow resistance as an expansion
valve. The length and the inner diameter of the
capillary tube are determined according to the
capacity of the refrigeration system, operating
conditions, and the amount of refrigerant. The
high pressure, high temperature liquid
refrigerant sent from the condenser expands
rapidly as the refrigerant is sprayed out through
the fixed orifice in the capillary tube. As a result, the temperature and state of the refrigerant
becomes low and mist-like, and therefore evaporates easily.
4.5 Evaporator
• The evaporator is a heat exchanger covered with plate fins. Heat is removed from the air being
pulled across the evaporator by the centrifugal fan. The resulting cool air is expelled through the
cooling air ducts.
I001887
High Temp./High Pressure
Liquid Refrigerant
Low Temp./Low Pressure
Gas and Liquid Mixture