The Refcomp SW3H-25000 is a 240HP semi-hermetic refrigeration screw compressor engineered for condensing unit applications. It combines an optimized asymmetric rotor profile, compact integrated housing, intelligent motor protection, and flexible piping connections to support stable and efficient refrigeration operation.
The SW3H-25000 refrigeration screw compressor features RefComp's asymmetric 5/6-tooth rotor geometry, promoting smooth rotor engagement and efficient compression. Its optimized design helps reduce vibration and supports stable mechanical operation.
The semi-hermetic screw compressor features streamlined internal gas passages that reduce suction resistance and flow losses. Its integrated housing combines key components into a compact arrangement, simplifying equipment layout while supporting smoother refrigerant flow.
This RefComp screw compressor uses the INT69 SNY protection module with six PTC temperature sensors to monitor motor overheating, phase loss and reverse phase sequence. Operating-status feedback helps identify abnormal conditions and supports timely troubleshooting.
The 360° rotatable suction and discharge shut-off valves provide greater flexibility for pipe routing, simplifying installation in different equipment layouts. An integrated discharge check valve helps prevent refrigerant backflow during shutdown.
| Model | SW3H-25000 |
|---|---|
| Rated power | 240HP / 179KW |
| Displacement 50/60Hz | 700 / 840 m³/hr |
| Weight | 980 KG |
| Capacity Regulation | 25%, 50%, 75%, 100% 4-step; 25%–100% stepless |
| Standard Motor | Y/△ – 400V/3/50Hz – 460V/3/60Hz |
| Star/Delta Start Current | 595 / 1802A |
| Max operating current | 410A |
When selecting a refrigeration screw compressor, provide the required cooling capacity, refrigerant, evaporating and condensing temperatures, power supply and expected load conditions. Verify the compressor's operating range rather than relying on horsepower alone.
The series offers four-step capacity control or stepless regulation from 25% to 100%. Stepped control suits systems with defined load stages, while stepless regulation allows finer output adjustment. Confirm the required configuration and controller compatibility before ordering.
Before starting the refrigeration screw compressor, verify the site power supply, star-delta starter wiring, phase sequence and motor protection connections. Check the oil circuit and suction/discharge valve positions against the manufacturer's commissioning instructions.
When replacing an existing screw refrigeration compressor, compare the operating range, mounting dimensions, piping connections, oil-line fittings and capacity-control interface. These checks help identify potential mechanical and electrical compatibility issues before installation.
