Carlyle 06TTW301 Water-Cooled Industrial HVAC Screw Compressor

Tailored specifically for centralized water-cooled chillers, commercial HVAC loops, and industrial process liquid cooling, the 06TTW301 HVAC screw compressor offers exceptional thermodynamic efficiency. Engineered around eco-friendly R134a refrigerant, this 90 HP unit delivers an impressive displacement of 504 m³/h (301 CFM) at 60Hz and 418 m³/h (250 CFM) at 50Hz.

Water-cooled condensing allows for lower operating head pressures, enabling the 06TTW301 to deliver massive volumetric output with significantly reduced motor electrical draw. An integrated 1-3/8 in. economizer subcooling circuit provides additional liquid subcooling, pushing system COP to peak levels during heavy cooling loads.

Building thermal loads shift continuously throughout operating hours. To eliminate energy waste from cycling heavy equipment, the 06TTW301 features a dual-solenoid stepless capacity modulation system ranging from 25% to 100%. By smoothly throttling displacement to mirror the building's exact instantaneous cooling demand, the unit stabilizes supply water temperatures, preserves acoustic comfort, and dramatically increases Integrated Part Load Value (IPLV) metrics for building operators.

Weighing 630 kg, the compressor features a heavy-duty, vibration-dampening semi-hermetic housing designed for years of quiet plant room operation. Operating via an internal differential pressure oil distribution system, it eliminates external oil pumps and their mechanical wear risks.

• Generous Line Porting: Large 4-1/8 in. suction and 3-1/8 in. discharge connections ensure minimal gas velocity restrictions and lower manifold pressure losses.
• Discharge Gas Backflow Prevention: A built-in internal check valve prevents high-pressure gas from spinning the precision twin rotors in reverse upon system shutoff.
• Continuous Thermal Oversight: Integrated thermistor sensors embedded directly inside motor windings guard against electrical phase unbalance and thermal overloading.

• Standard Factory Assembly: Terminal Connection Box, Solenoid Capacity Control Valve Assembly, Motor Thermal Protection Relay, Suction & Discharge Shutoff Valves, Internal Lubrication Circuit.
• Optional Equipment: Economizer Plate Subcooler Package, External Oil Separator, Auxiliary Oil Cooler, Companion Flanges, Advanced Electronic Diagnostic Modules.

• Standard Accessories: Terminal Box, Oil System Assembly, Motor Protection Module, Capacity Regulation Device, Stop Valves.
• Optional Accessories: Oil Separator, Mounting Flanges, Economizer Assembly, Oil Cooler, High-Temperature Expansion Valve, Kriwan Protection Module, and Paragon Control Board.

Ruifujie is a leading manufacturer and supply partner in the international commercial HVAC and industrial refrigeration sector, boasting over 20 years of technical expertise. We manufacture high-efficiency screw, scroll, semi-hermetic reciprocating, and rotary compressors, alongside custom-engineered liquid chillers and cold chain equipment.

Operating with robust OEM/ODM production capabilities, strict multi-stage quality control, and direct-from-factory pricing, Ruifujie serves engineering contractors, equipment builders, and stocking distributors across North America, Europe, the Middle East, and Asia-Pacific.

Water-cooled condensing systems operate at lower, more stable condensing temperatures than air-cooled units. This reduces the operating pressure differential across the compressor, allowing the 90 HP motor to deliver high displacement (504 m³/h @ 60Hz) with lower overall power consumption (67 kW @ 60Hz).

By diverting a small fraction of refrigerant through the 1-3/8 in. economizer port, the system further subcools the liquid refrigerant prior to entering the evaporator. This increases total refrigeration capacity and overall energy efficiency without raising the electrical workload on the compressor motor.

Star-Delta starting is strongly recommended to minimize electrical inrush. On a 460V 60Hz grid, Star-Delta starting reduces the starting locked-rotor current from 715A down to 229A, keeping your building's power system stable.

No. The 06TTW301 relies on internal differential pressure lubrication, which continuously supplies oil to high-precision SKF/NSK rotor bearings during operation without needing an extra motorized pump.

Before export, every compressor undergoes complete pressure testing, vacuum drying, and a holding charge of dry nitrogen. The unit is sealed in moisture barrier packaging and mounted inside a heavy-duty plywood export crate for safe container handling.

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