The Refcomp SW3L-16000 is a 170HP semi-hermetic screw compressor engineered for cold storage and industrial refrigeration applications. It combines an optimized asymmetric rotor profile, flexible capacity regulation, and precision multi-bearing support to deliver efficient, stable compression across demanding cooling loads.
The SW3L-16000 semi-hermetic screw compressor features RefComp's asymmetric 5/6-tooth rotor profile, promoting smooth engagement and reduced vibration. Its optimized geometry helps the twin-screw compressor achieve efficient compression and stable mechanical operation.
Stepped or stepless slide-valve regulation allows this variable-capacity screw compressor to adjust output according to changing cooling demands. This helps improve load matching and avoids unnecessary full-capacity operation during periods of lower refrigeration demand.
Multiple precision bearings support axial and radial rotor loads, helping maintain stable alignment during compression. Effective lubrication and accurate fitting reduce friction and operating noise, supporting smoother operation and limiting mechanical wear.
The semi-hermetic screw compressor uses star-delta starting to reduce initial motor current compared with direct-on-line starting. Its suction-gas cooling arrangement helps remove motor heat, supporting stable motor temperatures during refrigeration operation.
| Model | SW3L-16000 |
|---|---|
| Rated power | 170HP / 127KW |
| Displacement 50/60Hz | 510 / 612 m³/hr |
| Weight | 710 KG |
| Capacity Regulation | 25%, 50%, 75%, 100% 4-step; 25%–100% stepless |
| Standard Motor | Y/△ – 400V/3/50Hz – 460/3/60Hz |
| Star/Delta Start Current | 374 / 1155 A |
| Max operating current | 236 A |
Q1: How do I determine whether the SW3L-16000 is suitable for my refrigeration system?
For an industrial refrigeration screw compressor application, provide the required cooling capacity, refrigerant, evaporating and condensing temperatures, power supply, and expected load conditions. Confirm that the system requirements fall within the compressor's approved operating range.
Q2: Does the SW3L-16000 require an external oil separator?
Yes. The SW3 series is designed without an integrated oil separator, so a properly matched external oil separation and return system is required. Verify the oil circuit, filtration, and flow-protection arrangements before installation.
Q3: What electrical checks should be completed before commissioning?
Check that the available power supply matches the motor specifications and that the star-delta starter is correctly wired. Verify phase sequence, motor protection connections, and electrical safeguards according to the manufacturer's wiring diagram.
Q4: What should I check if the compressor stops due to a protection alarm?
If the semi-hermetic screw compressor stops following an INT69 SNY alarm, inspect motor temperature, phase sequence, phase loss, and protection wiring. Identify and correct the underlying fault before restarting the equipment.
