Refcomp SW3L-3000 30HP R507A Refrigeration Screw Compressor for Freezing Cold Room
Refcomp SW3L-3000 screw compressor
,30HP R507A refrigeration compressor
,screw compressor for cold room
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Flexible Capacity Regulation
The refrigeration screw compressor supports four-step capacity control at 25%, 50%, 75% and 100%, or stepless adjustment from 25% to 100%, helping match compressor output to changing cooling demands.
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Optimized Asymmetric Rotor Design
RefComp's 5/6 asymmetric rotor profile supports smooth compression, helping reduce gas pulsation, vibration and operating noise in low-temperature refrigeration applications.
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INT69 SNY Motor Protection
The semi-hermetic screw compressor features an INT69 SNY protection module with six series-connected PTC thermistors to monitor motor temperature and provide protection against overheating, reverse rotation and phase loss.
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Star-Delta Motor Starting
The standard motor uses a star-delta starting configuration to manage startup current. The three-phase motor configuration supports the specified 400V/50Hz and 460V/60Hz power supplies.
| Parameter | Value |
|---|---|
| Model | SW3L-3000 |
| Rated power | 30HP / 22KW |
| Exhaust volume 50/60Hz | 118 / 142 m³/hr |
| Weight | 245 Kg |
| Capacity Regulation | 100%, 75%, 50%, 25% (stepless 100%–25%) |
| Standard motor | Y/△ – 400V/3/50Hz – 460V/3/60Hz |
| LRA Y/Δ | 110 / 331 A |
| Max Operating Current | 65 A |
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Q1: What information is needed to select the right compressor for a low-temperature refrigeration system?
For low-temperature screw compressor selection, provide the required cooling capacity, refrigerant, evaporating and condensing temperatures, operating frequency and application details. The final selection should be confirmed against the manufacturer's performance data.
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Q2: What should be checked when replacing an existing refrigeration compressor?
Check refrigerant compatibility, piping connections, motor voltage, frequency and installation dimensions. Also verify that the existing system's oil circulation and control arrangements are suitable for the replacement unit.
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Q3: What preparations are necessary before the first startup?
Check the electrical connections, starter configuration, oil charge and refrigerant piping. Complete system leak testing and evacuation before commissioning.
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Q4: What information should I provide when requesting technical support?
For refrigeration screw compressor troubleshooting, provide the model, refrigerant, operating pressures, temperatures, power supply conditions and any protection alarm records. These details help identify whether the issue originates from the compressor or the refrigeration system.
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