Refcomp SW3L-18000 180HP 135KW R22 Screw Type Refrigeration Compressor
Refcomp SW3L-18000 screw compressor
,180HP R22 refrigeration compressor
,135KW screw type compressor
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Flexible Capacity Regulation
The screw type refrigeration compressor supports four-step capacity control at 25%, 50%, 75% and full load, or stepless adjustment from 25% to full load, helping match compressor output to changing refrigeration demands.
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Precision Bearing System
The semi-hermetic refrigeration screw compressor features a multi-bearing arrangement to support axial and radial rotor loads. High-precision bearings and dedicated lubrication passages help reduce friction, mechanical wear and operating noise.
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High-Density Suction Filtration
A built-in 100 μm suction filter removes impurities from incoming refrigerant gas, helping protect internal components and maintain clean refrigerant flow.
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INT69 SNY Motor Protection
Six series-connected PTC thermistors work with the INT69 SNY protection module to monitor motor temperature and provide protection against overheating, reverse rotation and phase loss.
| Parameter | Value |
|---|---|
| Model | SW3L-18000 |
| Rated power | 180HP / 135KW |
| Exhaust volume 50/60Hz | 562 / 674 m³/hr |
| Weight | 1030 Kg |
| Capacity Regulation | 100%, 75%, 50%, 25% (stepless 100%–25%) |
| Standard motor | Y/△ – 400V/3/50Hz – 460/3/60Hz |
| LRA Y/Δ | 453 / 1333 A |
| Max Operating Current | 250 A |
Q1: How should I choose between four-step and stepless capacity control?
For this screw type refrigeration compressor, four-step control is suitable for systems with defined load stages, while stepless regulation provides more gradual capacity adjustment. The final choice should match the system's load profile and controller compatibility.
Q2: What should operators pay attention to when maintaining the suction filter?
Inspect the filter for contamination during scheduled maintenance and whenever suction conditions become abnormal. Follow the manufacturer's recommendations for cleaning or replacement rather than applying an unverified fixed service interval.
Q3: What does the specified bearing design life mean for long-term operation?
The supplied structure documentation states a bearing design life of 40,000 hours under specified conditions of 35/40°C with R507A. This is a reference design condition, not a guaranteed service interval for every application.
Q4: What should be confirmed before connecting the compressor to the electrical supply?
For a screw type refrigeration compressor, verify the available three-phase voltage, frequency, star-delta starter configuration and electrical protection settings. Have qualified personnel check the wiring and phase sequence before commissioning.
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