Samsung RF28HDEDBSR Service Manual page 23

Product Specifications
■Evaporator
1. Role: As the low pressure liquid refrigerant flowed from capillary absorbs heat inside
of the refrigerator, it becomes low pressure gas and refrigerate the foods.
2. Theory: The low pressure refrigerant flowed to evaporator operates cooling which
takes ambient evaporated potential heat with maintaining the evaporation up to
evaporate completely.
3.Types of Evaporator
A. ROLL-BOND Evaporator ⇢ Direct Cooling ONE-DOOR Type
☞ Rolled and adhere the 2 aluminum plate and then make refrigerant passage.
B. PIN-PIPE Type ⇢ Indirect cooling TWO-DOOR Type
☞ a small aluminum plate on the aluminum pipe to increase the cooling effect.
■Compressor
1. Role: It operates same as pump which pull out the subterranean water. It inhales the
low temperature and pressure refrigerant gas (flowed out) from evaporator and make
high temperature and pressure refrigerant liquid in the compressor and send it to the
condenser.
2. Type of Condenser
a. Back-and-forth motion type: A method that pistol makes back-and-forth motion
through shaft and cylinder of motor rotation and compresses.
※ Used for household refrigerant
b. Rotary Type: A method that inhales the refrigerant gas through the gap between
the outside of rotor electric attached on the shaft and the inside of cylinder and
compresses.
c. Centrifugal Type
3. Please insert the explanation of inverter comp operation theory.
■Dryer
1. Role: Absorb the moisture from the refrigerant that refrigeration cycle circulates and
eliminate the foreign substance.
2. Structure: If even some moisture is included refrigerant is impossible to circulate by
freezing the small capillary outlet, so silica gel or molecular sieve is (included and)
sealed to absorb the internal moisture, and install a minute net to eliminate the foreign
substance.
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