Tachi Hi DC Inverter Air Conditioning Compressor DA65PHDG-D1Y2 AA50PHDG-D1Y2 AA55PHDG-D1Y2 Refrigeration & Heat Exchange Parts
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All three models use the environmentally friendly refrigerant R410A, with a three-phase power supply of 380-415V/50Hz or 440V/60Hz. They are suitable for inverter-driven VRF (Variable Refrigerant Flow) central air conditioning systems, commercial air conditioning units, industrial air source heat pumps, and other refrigeration equipment, featuring a wide operating range and high reliability.
1. High Energy Efficiency and Energy-Saving Technology All three compressors utilize DC inverter technology, offering significant energy savings compared to conventional compressors. Among them, the AA50PHDG-D1Y2 adopts high-speed DC inverter technology, delivering 10%–30% higher efficiency than AC inverter compressors and saving up to 45% of energy compared to standard compressors. The AA55PHDG-D1Y2 features a newly designed asymmetric scroll profile, which reduces leakage losses and enhances compressor efficiency. 2. Low-Noise Operation Equipped with a fixed crankshaft structure and a sufficiently large exhaust buffering mechanism, vibration and noise are minimized. The design incorporates fewer components, as the scroll compressor consists of only five main parts, ensuring more stable operation, higher efficiency, and greater reliability. 3. High-Reliability Design
Direct Suction Structure: Minimizes suction preheating, improves volumetric efficiency, and eliminates the damaging effect of liquid refrigerant on the oil film.
Differential Pressure Lubrication System: Ensures reliable lubrication of moving parts, enhancing overall system reliability.
Valve-Free Design: Scroll compressors do not require suction or discharge valve plates, resulting in more stable operation.
Wide Operating Range: Maintains high efficiency even under a wide range of operating pressure ratios.
4. Advanced Technological Features
Vapor Injection Technology (AA55PHDG-D1Y2): Reduces exhaust temperatures, increases cooling capacity, and expands the operational range.
Pressure Relief Valve Configuration: Improves part-load energy efficiency and adapts to variable pressure ratio conditions.
Non-Contact Sealing: Employs non-contact sealing in the axial and radial directions of the compression chamber, relying on an oil film formed by lubricant to reduce friction.
Variable Frequency Control: Utilizes rare-earth permanent magnet rotors, allowing controlled frequency adjustment during startup, operation, and shutdown.
5. Environmental Protection Features
Uses R410A Eco-Friendly Refrigerant: Contributes to environmental protection.
Built-In Fin Baffle Oil Separation Device: Optimizes the internal oil circuit design, improves oil separation efficiency in exhaust, reduces the oil content in the refrigerant, and enhances system heat exchange performance.
6. Broad Application Range Suitable for a variety of refrigeration systems, including inverter-driven variable refrigerant flow (VRF) central air conditioning systems, commercial air conditioning units, industrial air-source heat pumps, residential air conditioning systems, and dehumidifiers.
DA65PHDG-D1Y2: Ideal for high-capacity 14HP applications.
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