Refcomp SW3L-22000 220HP 164KW Semi-Hermetic Screw Type Compressor for Tunnel Freezer
SW3L-22000 semi-hermetic screw compressor
,220HP 164KW screw compressor
,screw compressor for tunnel freezer
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Flexible Capacity Regulation
The semi-hermetic screw type compressor supports four-step capacity regulation at 25%, 50%, 75% and full load, or stepless adjustment from 25% to full load. This screw compressor with stepless capacity control can adapt to changing refrigeration loads.
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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. This screw compressor with INT69 SNY motor protection supports monitoring of key motor conditions.
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Built-in Suction Filtration
An integrated 100 μm suction filter removes impurities from incoming refrigerant gas, helping protect internal components. This screw compressor with built-in suction filter also allows convenient inspection during routine maintenance.
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360° Rotatable Shut-Off Valves
The suction and discharge shut-off valves rotate through 360° for flexible piping arrangements. An internal discharge check valve helps prevent refrigerant backflow during shutdown, making this screw compressor with 360° rotatable shut-off valves convenient for system integration.
| Parameter | Value |
|---|---|
| Model | SW3L-22000 |
| Rated power | 220HP / 164KW |
| Exhaust volume 50/60Hz | 700 / 840 m³/hr |
| Weight | 980 Kg |
| Capacity Regulation | 100%, 75%, 50%, 25% (stepless 100%–25%) |
| Standard motor | Y/△ – 400V/3/50Hz – 460/3/60Hz |
| LRA Y/Δ | 543 / 1645 A |
| Max Operating Current | 300 A |
Consider the refrigeration system's load variations and controller capabilities. Stepless regulation is suitable when more gradual capacity adjustment is required, while four-step control provides defined operating stages.
When installing a semi-hermetic screw type compressor, consider the suction and discharge valve orientation, pipe support and maintenance clearance. The rotatable valve design provides additional flexibility when arranging connections.
Inspect the filter for contamination according to the manufacturer's maintenance recommendations. If abnormal suction conditions or signs of restricted refrigerant flow occur, check the filter condition.
Check the power supply, phase sequence, PTC sensor connections and motor temperature. Identify and correct the underlying fault before resetting the protection module.
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