Assessments - 2, GPA: 5
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Facilidade de uso
• 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 butwill 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 inthe system. • LIQUID CONTROL AND HEAT EXCHANGER — Liquid refrigerant control to the evaporator of thesystem is accomplished by the use of a capillary tube. This capillary tube is soldered to the suction line toform a heat exchanger, which subcools the liquidrefrigerant to maintain high efficiency within thesystem. 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. Failureto disconnect electrical service could result in electrical shock and cause personal injury or death. 1. After disconnecting the unit from the powersupply, 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 supplycords 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 thatthey are nominally vertical (Figure 3). The cartridge should be disengaged from the cabinet and resting on the base of the cabinet assembly. Handling holes are located on either side of the cartridge 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 removingcartridge. Before servicing unit, disconnect electrical service. On sizes 1100L and 1300L, turn disconnect switch(located on power cord) to the OFF position. Failureto disconnect electrical service could result in electrical shock and cause personal injury or death. 8 • EVAPORATOR COMPARTMENT (Interior top area) — All serviceable parts are directly accessible from the top of the cartridge compartment. • COMPRESSOR COMPARTMENT (Bottom rear area) — Access to compressor compartment requiresremoval of the side panel of the cartridge. Condenser fan access also requires removal of a side panel. Side panels are secured with 5 Phillips screws. After tubing and electrical connections are removed, compressor replacement requires removal of four clips securingcompressor to the base. 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 electrical shock and cause personal injury or death. • EVACUATION — Moisture in a refrigeration system may affect performance. When large amounts of moisture are present, system freeze ups will occur. Even in minute amounts, moisture will combine with refrigerants to form an acid. The corrosive action of this acid forms sludge, which will plug the lines and drier. Since most field type vacuum pumps cannot pull a low enough vacuum to remove all moisture from the system, it is recommended that the system be triple evacuated, breaking each time with dry refrigerant nitrogen. Use care to purge air from the charging hose when breaking the vacuum. • CHARGING REFRIGERATION SYSTEM — Refer to Table 2 for refrigerant type and amount of charge. Since capillary tube systems have small critical refrigerant charges, it is recommended that a field chargeeither be weighed in or transferred from a portable charging cylinder. After maximum vacuum has been obtained as detailed above, attach charging cylinder to the system line making sure to purge air from hose with refrigerant. With the unit running, allow refrigerant to run slowly into the system until the desired charge is reached. When using refrigerant blends it is recommended to charge into the high side of the system with the initial charge and then add any remaining charge into the suction side; however, care mustbe taken to meter the remaining amount into thelow side so that excess liquid does not enter the compressor. • TROUBLESHOOTING — Refer to Table 3 and Figures 10-12. 9 TABLE 3 — REFRIGERATION SYSTEM SERVICE AND ANALYSIS CHART (Refer to Figures 10-12 for wiring...
Este manual também é adequado para os modelos :Frigoríficos - Miracool 1300L (716.6 kb)