I. Technical Architecture AdvantagesHigh-Pressure Shell Design The high-pressure shell design places the motor in the high-pressure area, offering significant advantages over traditional low-pressure shell designs: the compression process is smoother, reducing oil return interference; volumetric efficiency is improved with a shorter, more direct suction path to the compression chamber; motor cooling is more effective as heat is dissipated by the discharge gas. The compact structure enhances reliability, delivering a higher COP than traditional fixed-speed scroll compressors and outstanding energy-saving performance. Dynamic Oil Management System
Dynamic Oil Equalization Tube Design: Automatically adjusts oil flow during parallel operation of multiple units, achieving dynamic oil level balance and reducing the risk of dry friction.
Gear Oil Pump Forced Lubrication: Utilizes a high-precision gear oil pump for active lubrication supply, eliminating dependence on negative-pressure oil suction and significantly reducing the risk of startup wear.
II. Performance AdvantagesHigh Energy Efficiency
Incorporates DC inverter technology, allowing the compressor speed to be continuously and freely adjusted based on actual load to automatically regulate output capacity.
Enhanced Vapor Injection (EVI) technology uses an economizer-based quasi-two-stage compression method, significantly improving EER and COP values under rated cooling/heating conditions.
System cooling efficiency can increase by 7%–10%, and heating efficiency by 7%–20%, with particularly outstanding low-temperature heating performance.
High Reliability
Features a fully enclosed scroll compressor with a fully flexible scroll design and high-efficiency axial + radial flexible sealing technology.
Offers improved handling of liquid refrigerant or foreign particles in the scroll, ensuring efficient and stable unit operation.
Anti-thermal drift design significantly enhances the inverter’s resistance to electromagnetic interference, improving control accuracy and reliability.
III. Operational Quality AdvantagesLow Noise and Vibration
Fully enclosed scroll compressors produce minimal vibration and low operating noise.
Optimized compressor structure and components reduce friction and vibration during operation.
Outdoor unit fan motors use DC inverter technology, ensuring smooth and quiet operation.
Application Areas: Commercial air conditioning systems (VRF/modular units), heat pump heating systems (suitable for extreme cold environments as low as -25°C), data center air conditioning, cold chain logistics, and commercial cold storage. These products meet stringent requirements for 24/7 annual operation, high energy efficiency ratios, ultra-high stability, and low noise. Product Core Data Comparison
Parameter
DC65PHDG-D1Y2
DC80PHDG-D1Y2
DD94PHDG-D1Y2
Cooling Capacity
21.4 KW
21.4 KW
Not specified
Power
6580 W
6580 W
Not specified
Nominal Horsepower
14 HP
14 HP
Not specified
Displacement
65 cm³/rev
80 cm³/rev
94 cm³/rev
Voltage Configuration
DC Inverter 3Ph, 380-415V/50Hz, 440V/60Hz
DC Inverter 3Ph, 380-415V/50Hz, 440V/60Hz
Not specified
Refrigerant
R410A
R410A
Not specified
Structure Type
Scroll
Scroll
Scroll
Displacement Type
Fixed Displacement Compressor
Fixed Displacement Compressor
Fixed Displacement Compressor
Application Scenario
Residential/Commercial Air Conditioning and Refrigeration
Residential/Commercial Air Conditioning and Refrigeration
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