The refrigeration unit uses Copeland (COPELAND) series compressors, COPELAND is the world's largest manufacturer of semi-hermetic compressors, and its products to superior performance, quality and reliability and world-renowned. 
 copeland compressor technology features: 
 ? cooling the world's leading compression technology. Reliable, compact, high energy efficiency ratio. 
 ? Copeland compressors are efficient butterfly valves, suction and exhaust air to flow freely, which reduces the suction and discharge resistance. 
 ? Unique hydraulic pump to force oil and poor control. 
 ? unique design of spray cooling and reliable operation even for low-temperature conditions. 
 ? Unique built-in temperature protection device, overheating the motor and compressor operation to provide effective protection. 
 ? with PTC crankcase heater, ensure that the downtime or the ambient temperature is too low the compressor Safe Boot. 
 Efficient air-cooled condenser or water cooled condenser: 
 ? air-cooled condenser flange quality and efficient use of secondary aluminum fins, efficient inner grooved copper tube, machine up tube, greatly improve the efficiency of heat transfer. Casing surface electrostatic spraying, corrosion-resistant. Configure low-speed, air flow fan, low noise, improve heat transfer efficiency. 
 ? water-cooled shell and tube condenser for the structure, use of efficient inner grooved copper tube, tube sheet Expansion, heat transfer efficiency, safety and reliability. 
 Unique energy-saving technologies. The use of hot exhaust from the pre-cooling and liquid cooling technology, the liquid is too cold for more than 5 degrees (for R22, the equivalent of saving 5%), the use of flow-induced high-frequency vibration, so that the exhaust pre-cooling coil to further high heat, reduce the exhaust pressure, lower power consumption than 6%, and because the tubes of the high-frequency vibration, but also to avoid the formation of mass scale, so that heat stable and efficient. 
 Reservoir, filter drier, high and low voltage controllers are equipped with world-class refrigeration accessories brand products. 
 Configuration suction filters, to keep the system clean and high degree of reliability. 
 Plant is equipped with short tubes brazed joints and IP55 electrical boxes, piping and electrical connections to facilitate