Copeland refrigeration compressor unit

Copeland compressors Application: Copeland compressors into L, C, 3S, 4S, 6S series of air-cooled condensing units can be used as a major component of a variety of refrigeration devices, used in a variety of frozen, refrigerated equipment, according to the needs of different or use a different refrigerant, you can get fresh fruits and vegetables, food and other frozen or refrigerated temperature required for this unit can be widely used in commercial, tourism, services, food industry, pharmaceutical and chemical industries. Function: l, m suction vapor from the evaporator, the evaporator in order to ensure a certain degree of vapor pressure; 2, increasing the pressure (compression), at higher temperatures in order to create conditions for condensation; 3, conveying the refrigerant, the refrigerant complete refrigeration cycle. [1] Features: 1. High energy efficiency: energy efficiency on the market the most advanced piston compressor is higher by 12% 2. outstanding reliability: fewer moving parts, the axial and radial compressors patented design provides flexible an unprecedented resistance to fluid attack and tolerance for impurities advantages: 1, high volumetric efficiency: pressure scroll compressor adjacent crescent-shaped space between the small, leak less, no steam injection and exhaust valve, resistance, He demonstrated the clearance volume re-expansion. 2, high adiabatic efficiency: in the same cooling capacity, the vortex higher than reciprocating compressor about 10%. [1] 3, low noise machine vibration 4, Copeland compressor has a solid cast iron body to provide a large cooling area to improve the cooling effect of the compressor, and the use of lightweight aluminum pistons reduce friction and vibration, with sophisticated electronic protective film block, provides comprehensive motor protection. Configure compressor: All Copeland semi-hermetic compressors are located the oil network, filling holes, discharge and suction shutoff valve with gauge ports, intake filters and oil, as the mirror. Copelametic? return air-cooled compressor (and LA60-type air-cooled compressor) mounted hydraulic pump with a needle valve forced lubricating system detects the interface can be connected to a mechanical oil differential controller, wherein S Series compressor may use electronic oil differential controller. Forced pump lubricating oil system must monitor hydraulic oil pressure differential controller. Copeland semi-hermetic compressor motor is coated with a lubricant and refrigerant to prevent penetration of the insulating layer. Stator is pressed into the body, the rotor is attached directly to the compressor shaft. Motor cooling is extremely important because it directly affects the life of the compressor. Generally, the most suitable motor winding temperature is 70 C to 90 C, can not exceed 100 C. The carrying capacity of the motor depends on its operating temperature, if the insulating layer to withstand high temperature, the motor may be damaged. Excessive voltage fluctuations, phase loss, motor stall and poor cooling effect can add extra power, so that the motor temperature rise sharply. Each compressor comes with motor protection devices to ensure safe use in extreme conditions of the motor. Cooling compressors: air compressor air flow can be cooled condenser fans, may also have a separate cooling fan sufficient amount of wind; the wind must be blowing directly cooling the compressor. Return air-cooled compressor in the return air cooling compressors, the motor is supplied via the gas refrigerant between the stator and rotor cooling. The heat of the motor. Since the return air density decreases as the evaporator temperature decreases, the gas temperature prior to compression of the motor due to excessive heat built up from flowing through the motor refrigerant vapor away the return air cooling compressor. Suction enter the higher the temperature of the gas chamber together with the gas compression heat will cause the exhaust temperature is too high. Therefore, in some applications, you must use a vertically mounted air volume is 328.5 m / min fan cooling the cylinder head. When R22 low temperature applications, usually with additional spray liquid cooling to keep the exhaust temperature within the allowable range. Exhaust temperature is too high will produce a series of problems, such as lubricating oil to deteriorate or cause the formation of acid, causing the motor or bearing failure. The lower the evaporation temperature, exhaust gas temperature is higher. In order to prevent excessively high exhaust gas temperature, the compressor is running should be within a predetermined range corresponding to the different refrigerants. For R22 refrigerant and the evaporation temperature is below -20oC the S series semi-hermetic compressors, the use of forced cooling system (DTC valve spray liquid cooling system), which is a discharge temperature of effective measures to prevent. Lubricating moving parts: the air-cooled compressor, the moving parts of the lubricating oil through a magnetic bolt toward the entrance of the eccentric shaft of the magnetic plug is to remove the lubricant tiny iron evaporator return oil through suction. a gas cut-off valve after oil separation chamber by a communicating hole into the crankcase compressor after the shutdown, the crankcase pressure balance through the aperture is adjusted, then the refrigerant will concentrate in lubricating oil. When When the compressor is started again after a long shutdown, the crankcase pressure will slowly decrease through the aperture to the evaporation pressure, which can reduce oil miscible liquid refrigerant bubbles due to evaporation of refrigerant caused by boiling. In return air cooling compressor, the lubricating oil from the motor rotation direction by the impact of the oil pump through the oil filter and magnetic plug inhalation, and back to the gas returns to the compressor together and separated in the motor cavity. After the motor chamber and the pressure relief valve on the crankcase bulkhead reach the crankcase. Slow decline for some time, reducing the pressure drop due to excessive oil caused / refrigerant miscible liquids blistering. The pressure relief valve only When the pressure reaches equilibrium through another pressure relief valve to re-open. This is another pressure relief valve to the suction side of the crankcase and cylinder head are connected, slowly decreasing the pressure differential through a porous plate of the pressure relief valve, This reduces the oil bubble and only a few bubbling oil / refrigerant miscible liquid into the pump. Lubricant manufacturer has specified the maximum allowable moisture containers in the index. Since water vapor is still possible to enter a sealed container, so the container must be stored in a dry place, but it must be careful not to exceed the storage limit. For the same reason, it should be based on the maximum amount of refrigeration systems and as much as possible the use of small-size containers of oil, and the proper disposal of remnants and containers. Refrigerant: semi-hermetic refrigeration compressors Copeland compressors can use the model and uses R22, R502, R134a and R404A and other refrigerants in various applications and information can be found in the corresponding refrigerant selection table associated with the new refrigerant. Important characteristics of the component mounting system agents to run the new refrigerant system chosen must comply with the new refrigerant (consult component manufacturer specific): ? You must use compatible with the new refrigerant expansion valve ? You must use the new refrigerant phase capacity of sufficient capacity filter driers · selection related valves, control devices must be taken into account when the new refrigerant mass produced R134a, R404A, R507 and other traffic change * must be compatible with the new refrigerant special mineral oil can not fill the tube used to run the new HFC refrigerants in refrigeration systems, because such mineral oil is not miscible with the refrigerant. POE lubricant has been confirmed to replace mineral oil and good for such applications. In order to ensure, as always, we extend the service life, must pay particular attention to performance and usage characteristics of this oil polyol esters. Ester oils have been certified, they can be used for R404A, R507, R407C and R134a systems, and can be used in combination with each other. In order to prevent mutual contamination of mineral oils and polyester oils, it should be appropriate for a variety of devices and traditional refrigerants new refrigerant, such as vacuum pumps, fittings, filling and recycling equipment and parts strictly separately. After Copeland certified ester oils have: Mobil: EAL Arctic 22CC; ICI: Emkarate RL 32CF etc. After Copeland certified mineral oil: Sun Oil Co .: Suniso 3GS; Texaco: Capella WF32 other relevant Copeland approved lubrication Oil For more details, please refer to Copeland Application Guidebook AE17-1248. Unit or system manufacturer must indicate the type of refrigerant used on the nameplate. Installation: Each compressor is equipped with four colored spring cushion they can absorb and cushion the impact of the compressor start, in operation can prevent noise and vibration transmission to the compressor base and further spread before the compressor starts or compressor installation, cushioning should be adjusted to the working state, when this operation, pay attention to maintain the level of the compressor in order to ensure good lubrication movement member spring configuration, see instructions. Spring damping pad support compressor requires suction, install flexible metal hose (shock tube) in order to prevent the compressor from the refrigerant lines through the conduction of vibration and noise on the exhaust pipe when the pipe diameter of 12mm or less, in Set shock absorber pipe ring is enough. Shock tube should be as close to the compressor, and try to parallel to the crankshaft in the start-up phase, the motor starting torque of the compressor swing to both sides, parallel to the crankshaft shock tube installed easily accommodate this movement is not permitted horizontal mounting shock tube perpendicular to the crankshaft.