+86-15339975475
info@archeanref.com
info@archeanref.com
+8615339975475
Wutongli, linyi, Shandong, China
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High-Pressure Chamber Design: Hitachi scroll compressors utilize a high-pressure chamber structure where the motor is placed in the high-pressure zone, offering significant advantages over traditional low-pressure chamber designs: the compression process is smoother, the suction path is shorter and directly connects to the compression chamber, motor cooling is more effective, the structure is more compact and reliable, and the COP value is higher than that of traditional fixed-speed scroll compressors, resulting in significant energy savings.
Scroll Compression Technology: In 1983, Hitachi invented the world’s first scroll-type air conditioning compressor. It features a fully enclosed scroll structure with high machining precision, fewer moving parts, low leakage, high efficiency, minimal vibration, and long service life. The asymmetric scroll plate technology offers outstanding characteristics such as reduced leakage, higher efficiency, lower vibration, quieter operation, and prevention of over-compression compared to traditional symmetric designs.
Variable Frequency Technology: Utilizing stepless variable frequency technology, the compressor speed can be continuously and freely adjusted, allowing automatic adaptation to actual air conditioning loads with higher precision. Combined with adaptive control technology, it ensures a smoother transition curve to meet comfort requirements.
High Energy Efficiency Ratio: Through variable frequency technology, Hitachi compressors reduce speed under low-load conditions to further enhance energy efficiency. The system adjusts dynamically to partial loads, ensuring it always operates in an efficient state. Compared to ordinary fixed-speed units, the overall cooling efficiency increases by 20%, and heating efficiency improves by 7%-20%.
Support for Eco-Friendly Refrigerants: Compatible with various refrigerants such as R22, R134a, R404A, R407C, R507A, R410A, and R32, meeting diverse environmental protection requirements.
Multiple Protection Devices: A safety pressure relief valve is installed between the high- and low-pressure chambers; a PTC temperature sensor is placed in the exhaust chamber; motor protection employs a German KRIWAN PTC motor protector, equipped with a delay circuit that prevents the compressor from restarting for 5 minutes after shutdown, effectively safeguarding the compressor.
Over-Compression Prevention Technology: The Release valve technology effectively prevents over-compression under partial load conditions, significantly improving the compressor’s intermediate performance, providing buffer protection, and extending its service life.
Low Noise and Low Vibration: Scroll compressors operate smoothly, with vibration levels only 15% of those of general rotary compressors, significantly reducing operational vibration and noise. The fan motor uses a DC variable frequency motor, ensuring smooth and quiet operation.
Wide Operating Temperature Range: Evaporation temperature ranges from -15°C to +12°C, condensation temperature from +22°C to +67°C, and compression ratio from 1.5 to 8, adapting to various working conditions from low-temperature freezing to high-temperature heating.
Long Life Design: Non-contact oil film sealing is employed, with axial and radial sealing in the compression chamber relying on lubricating oil to form an oil film seal, reducing friction and improving efficiency and reliability. Without suction and exhaust valve plates, the structure is stable, with fault-free operation time reaching 20,000 to 50,000 hours.
