Refrigeration System Service, Components, Condenser, Drier

DANGER

Before servicing unit, disconnect electrical service. Failure to disconnect electrical service could result in electrical shock and cause personal injury or death.

FIGURE 9 – RELEASE COND. UNIT BASE

Push the condensing unit base to gain access to the refrigeration system components.

Remove the 2 hex-head screws that hold the condensing unit base to the cabinet main rails. (See figure 9)

Unplug the power supply cord located at the bottom of the cabinet. (See Figure 3)

Lift the grille up and away from the unit.

After disconnecting the unit from the power supply, remove the grille retaining screw located in the upper-most part of the grille. (See Figure 2)

REFRIGERATION

SYSTEM SERVICE

COMPONENTS

The Carrier Miracool™ refrigeration system consists of a hermetically sealed compressor and finned evaporator and condenser coils.

CONDENSER

The condenser has wide finned spaces, which allow more air passage with less dirt or dust accumulation. The condenser still requires periodic cleaning for maximum efficiency.

CONDENSER FAN MOTOR

The condenser fan motor assembly is mounted between the condenser and the compressor. Air is drawn through the condenser, over the body of the compressor and out the rear of the unit compartment. The motor is wired to cycle with the compressor but will continue to operate should the compressor cut out on the overload. (The motor is permanently lubricated; therefore, oiling is not required.)

DRIER

The drier is installed in the system just before the capillary tube. The drier traps minute particles of foreign material and absorbs any moisture in the system.

LIQUID CONTROL AND HEAT EXCHANGER

Liquid refrigerant control to the evaporator of the system is accomplished by the use of a capillary tube. This capillary tube is soldered to the suction line to form a heat exchanger, which subcools the liquid refrigerant to maintain high efficiency within the system.

SERVICE AND

TROUBLESHOOTING

CONDENSING UNIT SERVICING