Carrier Official Manual for Miracool Refrigerators: Service and Troubleshooting Guide

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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

￿ DANGER

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

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Contents Miracool Glass Door Merchandiser 2000L Contents InstallationGeneral Unit InspectionMiracool Bottle Cooler Unit Components MC2000H Shown To Level Unit To Gain Access to Leveling FeetLevel Unit Condensate Disposal Install ShelvesTo Install Shelves BI-PIN Fluorescent Lamp Installation / Verification START-UPPreliminary Checks Electrical Supply and ConnectionsPower Supply Temperature ControlInitial START-UP Unit DataComponents Refrigeration System ServiceService Troubleshooting Evacuation Charging Refrigeration SystemRefrigeration System Refrigeration System Service and Analysis ChartMalfunction Possible Cause Solution Wiring Diagram Maintenance Methods for Cleaning Stainless Steel Task Cleaning Agent Method of Application Effect on FinishCopyright 2006 Carrier Corporation