The Refcomp SW3H-16000 is a 170 HP semi-hermetic screw type refrigeration compressor engineered for reliable, efficient performance in demanding cooling systems. Its design combines optimized rotor geometry, precision bearing support, and flexible installation features to deliver stable operation across varying refrigeration loads.
The SW3H-16000 features RefComp's asymmetric 5/6-tooth rotor profile and optimized rotor geometry. This design promotes smooth engagement, reduces vibration, and helps improve compression efficiency during operation.
A multi-bearing arrangement supports axial and radial loads, helping maintain stable rotor alignment. Precision fitting and effective lubrication reduce mechanical friction and operating noise, supporting smoother operation and reduced component wear.
The 360° rotatable suction and discharge shut-off valves allow installers to adjust piping orientation according to equipment layout. An integrated discharge check valve also helps prevent refrigerant backflow during shutdown, providing additional system protection.
Star-delta starting helps reduce the initial motor current compared with direct-on-line starting, lowering electrical demand during startup. The suction-gas-cooled motor design supports effective heat removal and stable motor operation under varying refrigeration loads.
| Model | SW3H-16000 |
|---|---|
| Rated Power | 170 HP / 127 kW |
| Displacement (50/60 Hz) | 445 / 534 m³/hr |
| Weight | 675 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 | 374 / 1155 A |
| Max Operating Current | 270 A |
When selecting this semi-hermetic screw type compressor, provide the required cooling capacity, refrigerant, evaporating and condensing temperatures, power supply, and expected load conditions. These details help verify whether the model operates within the required system conditions.
The compressor offers four-step capacity regulation or stepless control from 25% to 100%. For a refrigeration screw compressor, the appropriate choice depends on load variation, control precision, and system controller compatibility. Confirm the required configuration before ordering.
Before starting this 170 HP screw compressor, verify the motor voltage, frequency, star-delta starter connections, and phase sequence. Check the INT69 SNY protection module and associated motor protection wiring against the manufacturer's electrical diagram.
When replacing an existing unit with this semi-hermetic screw type compressor, compare mounting dimensions, suction and discharge connections, oil-line fittings, and control interfaces. Verify that the replacement meets the system's operating requirements and available installation space.
