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06TTA266 Carlyle 120HP Refrigeration AC Twin-Screw Compressor
Optimized R134a Air-Cooled Chiller Architecture
Engineered specifically for large commercial air conditioning systems, central water chillers, and industrial process cooling loops, the 06TTA266 ac screw compressor is optimized for operation with eco-friendly R134a refrigerant. Powered by a heavy-duty 120 HP motor, it delivers a massive volumetric displacement of 266 CFM (446 m³/h) at 60Hz and 221 CFM (369 m³/h) at 50Hz. Featuring an integrated 1-3/8 in. economizer injection port, this compressor achieves significant liquid subcooling, enhancing system COP and cooling output during demanding high-ambient outdoor operations.
Seamless 25%-100% Load Adaptation
To match dynamic building cooling loads and maintain precise chilled water temperatures, the unit utilizes a high-response stepless capacity adjustment mechanism spanning 25% to 100% output. By smoothly modulating compressor displacement via dual solenoid valves, the 06TTA266 eliminates severe power spikes associated with frequent motor cycling, optimizing part-load energy consumption across changing ambient conditions.
Engineered for Low Maintenance & Extended Service Life
Built to handle intense continuous summer cooling peaks without efficiency degradation, the 06TTA266 ac screw compressor relies on internal differential pressure lubrication, eliminating complex external oil pumps. Key mechanical safeguards include:
Heavy-Bearing Rotor Assembly: High-load SKF/NSK bearings effectively absorb axial and radial forces to maximize internal screw rotor longevity.
Large-Diameter Port Connections: Standard 4-1/8 in. suction and 3-1/8 in. discharge connections ensure low pressure drop integration into large chiller piping manifolds.
Reverse Rotation Safeguard: An internal check valve prevents gas pressure backflow from spinning the rotors in reverse during shutdown.
Integrated Thermal Monitoring: Embedded winding thermistors provide continuous real-time protection against motor over-temperature conditions.
Flexible Configuration & Accessory Options
Standard Included Items: Terminal Connection Box, Capacity Control Solenoids, Motor Protection Module, Suction/Discharge Service Valves, Internal Lubrication Piping.
Ruifujie is an established global equipment partner with over two decades of technical expertise in commercial air conditioning and industrial cooling solutions. We supply high-efficiency screw, scroll, reciprocating, and rotary compressors, alongside custom liquid chillers and cold storage infrastructure. Offering full OEM/ODM manufacturing capabilities, Ruifujie serves MEP contractors, original equipment manufacturers, and equipment wholesalers across North America, Europe, the Middle East, and Southeast Asia. By combining rigorous factory quality verification with competitive factory-direct supply chains, we help our partners build dependable, energy-efficient HVAC networks worldwide.
Frequently Asked Questions
Why is the 06TTA266 ac screw compressor ideal for large-scale air-cooled water chillers?
Delivering up to 446 m³/h of displacement at 120 HP, the 06TTA266 is tailored for R134a chillers that demand high mass flow rates and efficiency under elevated summer ambient temperatures. Its integrated economizer line significantly boosts subcooling to maintain performance when condenser temperatures rise.
How does stepless 25%-100% capacity control benefit commercial building HVAC systems?
Instead of stepping output in fixed increments, continuous modulation smoothly matches the chiller's cooling output to the building's instantaneous heat load. This stabilizes chilled water supply temperatures and prevents energy losses caused by frequent compressor restarts.
What starting configuration is recommended to handle the high locked rotor current (LRA)?
For a 120 HP unit, Star-Delta starting is strongly recommended to reduce starting current draw (e.g., dropping 460V LRA from 930A down to 298A), protecting building electrical infrastructure from voltage sags.
Does the 06TTA266 require a separate mechanical oil pump?
No, the compressor operates reliably using internal pressure differential lubrication, simplifying the overall refrigeration circuit and eliminating an extra motorized component that would require maintenance.
What warranty and quality assurance support does Ruifujie offer for export orders?
Every compressor undergoes 100% factory pressure and operational testing prior to packaging. Ruifujie provides a standard 1-year warranty covering manufacturing defects, supported by fast-track spare parts supply.
Request a Custom Engineering Quote
Need detailed technical datasheets, or factory pricing for the 06TTA266? The Ruifujie engineering team is available to review your system parameters and send a comprehensive proposal within 8 hours.
Please share the following details with your request:
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Company Details
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