REFRIGERATION SYSTEM SERVICE

COMPONENTS

The Carrier Miracool™ refrigeration system consists of a hermetically sealed compressor and finned evapo- rator 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 peri- odic 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 con- denser, 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 parti- cles 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

„CARTRIDGE REMOVAL

Before servicing unit, disconnect electrical service. On sizes 1100L and 1300L, turn disconnect switch (located on power cord) to the OFF position. Failure to disconnect electrical service could result in elec- trical shock and cause personal injury or death.

1.After disconnecting the unit from the power supply, remove the grille retaining screw located in the upper-most part of the grille. (See Figure 1.)

2.Lift the grille up and away from the unit.

3.Unplug the power supply and lighting supply cords located in the front of the cartridge (Figure 2).

4.Using a pair of wire cutters, cut wire tie that secures lifting rods at center of front base rail. (See Figure 2.)

5.Take hold of the end of each lifting rod and rotate each approximately 90-degrees upward so that they are nominally vertical (Figure 3). The car- tridge should be disengaged from the cabinet and resting on the base of the cabinet assembly. Han- dling holes are located on either side of the car- tridge near the top and along the side of the cartridge (Figure 4). Grasp the cartridge by these holes and slide the unit forward from the cabinet until it is free. Use caution to ensure that power and electrical cords do not get pinched between the cartridge and cabinet while removing cartridge.

Before servicing unit, disconnect electrical service. On sizes 1100L and 1300L, turn disconnect switch (located on power cord) to the OFF position. Failure to disconnect electrical service could result in elec- trical shock and cause personal injury or death.

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Carrier 260L Refrigeration System Service, Components, Service and Troubleshooting, „ Liquid Control and Heat Exchanger
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1300L, 260L specifications

The Carrier 260L and 1300L represent notable advancements in the realm of air conditioning systems, particularly designed for both commercial and industrial applications. These models are renowned for their efficiency, robust performance, and the integration of cutting-edge technologies.

The Carrier 260L is characterized by its remarkable energy efficiency, with a focus on reducing operational costs while maintaining optimal cooling performance. It is available in various capacities, making it suitable for a wide range of spaces, from medium-sized commercial installations to large-scale industrial facilities. The model incorporates advanced inverter technology, enabling it to adjust the compressor speed according to the cooling demand. This results in both energy savings and enhanced comfort, as the system can maintain a stable temperature with minimal fluctuations.

In contrast, the Carrier 1300L is tailored for larger industrial applications, offering even greater cooling capacities. This model is designed to tackle high thermal loads, making it ideal for factories, warehouses, and other large spaces where cooling requirements can fluctuate significantly. The 1300L also features robust construction principles, ensuring reliability and longevity even in demanding environments.

Both models share several key features that elevate their performance. They are equipped with eco-friendly refrigerants, aligning with global sustainability efforts. The units boast sophisticated control systems that allow for precise temperature management, remote monitoring, and integration with building management systems. This not only enhances user convenience but also promotes energy management strategies that are increasingly critical in today's energy-conscious world.

Moreover, the Carrier 260L and 1300L are designed with ease of maintenance in mind. Their modular components facilitate quicker access for service technicians, ensuring minimal downtime. Enhanced filtration systems improve indoor air quality, capturing dust and other particulates effectively, which is a key consideration in commercial settings.

In summary, Carrier's 260L and 1300L models stand out for their energy efficiency, advanced technology integration, and user-friendly features. They effectively meet the cooling challenges faced in commercial and industrial environments while adhering to sustainability goals, enhancing both user experience and operational efficiency. These systems exemplify Carrier's commitment to quality, reliability, and innovation in air conditioning solutions.
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