Refcomp SW3H-7500 75HP R404A Refrigeration Screw Compressor for Cold Room
| Horse Power: | 75HP/55KW | Displacement 50/60Hz: | 205/246 M³/hr |
| Application: | HVAC,Cold Room,Condensing Unit,Air Conditioning | Refrigerant: | R22, R407C, R404A, R507A, R134a, R410A |
| Energy regulation: | 100%,75%,50%,25%(stepless 100%-25%) | Voltage: | 400V/3/50Hz-460V/3/60Hz |
| High Light: | Refcomp SW3H-7500 screw compressor,75HP R404A refrigeration compressor,screw compressor for cold room |
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The Refcomp SW3H-7500 is a 75 HP (55 kW) semi-hermetic refrigeration screw compressor engineered for cold room and industrial refrigeration applications. It combines a refined asymmetric screw rotor design, a high-precision multi-bearing assembly, an advanced motor protection system and integrated suction gas filtration to deliver stable, efficient and long-term reliable compression performance.
Featuring RefComp's asymmetric screw rotor profile and a 5/6 rotor configuration, the refrigeration screw compressor provides precise rotor meshing, effective lubrication and smooth compression. The optimized geometry helps reduce vibration, gas pulsation and operating noise while supporting efficient performance.
The multi-bearing configuration accommodates axial and radial loads while reducing mechanical wear and operating noise. High-precision bearings, wear-resistant materials and specialized lubrication contribute to stable operation and long-term mechanical reliability.
The integrated INT69 SNY protection module provides protection against motor overheating, reverse phase and phase loss. Six PTC thermistors connected in series and embedded in the motor windings provide temperature monitoring, helping protect the motor against excessive heat.
The built-in 100 μm suction filter captures impurities from refrigerant gas before they enter the compression chamber, helping protect internal components and the motor. This filtration design supports cleaner operation and helps reduce the risk of contamination-related wear in the semi-hermetic screw compressor.
| Model | SW3H-7500 |
|---|---|
| Standard Motor Power | 75HP / 55KW |
| Displacement (50/60Hz) | 205 / 246 m³/h |
| Weight | 410 KG |
| Capacity Regulation | 100%, 75%, 50%, 25% (stepless 100%–25%) |
| Standard Motor | Y/△-400/3/50Hz-460/3/60Hz |
| LRA Y/Δ | 139 / 459 A |
| Max Operating Current | 124 A |
The SW3H-7500 is a 75 HP refrigeration screw compressor designed for high-temperature applications. Selection should consider the required cooling capacity, refrigerant, evaporating and condensing temperatures, cooling medium and power supply to ensure proper system matching.
R22 is included among the refrigerants listed in the RefComp SW series documentation. An R22 screw compressor configuration can be considered for compatible commercial and industrial refrigeration applications, subject to confirmation of the selected configuration and operating conditions.
The compressor uses an INT69 SNY protection module and six series-connected PTC thermistors embedded in the motor windings. The electrical protection circuit, phase sequence and motor wiring should be checked before commissioning.
Provide the required cooling capacity, refrigerant, evaporating and condensing temperatures, cooling medium, power supply and intended application. These details help determine whether the 75 HP screw compressor is suitable for your refrigeration project.
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