06NA2209S7EA-A00 Screw Compressor HVAC

The 06NA2209S7EA is an industrial-grade 90 HP screw compressor hvac unit purpose-built for heavy-duty air-cooled chillers, commercial building HVAC plants, and large industrial fluid cooling systems. Powered by Carlyle's patented twin-screw rotor geometry, this compressor delivers continuous rotational torque with minimal internal vibration. Operating with eco-friendly R134a refrigerant, it maintains exceptional volumetric yield and heat exchange performance under severe ambient operating conditions.

Constructed to withstand intense continuous duty cycles, the 06NA2209S7EA relies on high-precision SKF/NSK rolling contact bearings combined with heavy-duty axial thrust bearing arrangements. This durable chassis design extends routine service intervals and minimizes mechanical wear. To protect internal components, the unit houses a comprehensive internal protection suite-including a fast-acting check valve to prevent rotor reverse rotation during abrupt power shutoffs, a safety relief valve, an internal oil filter to strain circulating contaminants, and a built-in discharge muffler to quiet gas flow acoustics.

To manage dynamic building cooling loads, the 06NA2209S7EA features solenoid-actuated 3-stage capacity modulation, smoothly stepping down output to match part-load conditions. Driven by a high-efficiency motor equipped with embedded NTC thermistor thermal sensors, the compressor supports both Star-Delta (Y-Δ) and Direct-On-Line starting profiles across global electrical grids. This combination of multi-step unloading and flexible electrical compatibility makes it an efficient, reliable driver for modern commercial HVAC installations.