Refcomp SW3H-10500 R404A Semi-Hermetic Screw Compressor for Food Storage System
Refcomp SW3H-105000 screw compressor
,R404A semi-hermetic screw compressor
,screw compressor for food storage
RefComp's 5/6 asymmetric rotor profile supports smooth compression, helping reduce gas pulsation, vibration and operating noise during continuous operation.
The semi-hermetic screw compressor uses matched bearing assemblies to support axial and radial rotor loads. Precision rolling elements and specially profiled raceways help reduce friction, wear and mechanical noise.
A built-in 100 μm suction filter removes impurities from incoming refrigerant gas, helping protect the motor. Its accessible position simplifies inspection and replacement during routine maintenance.
The compressor adopts star-delta starting to manage motor startup current. Suction-gas cooling helps maintain suitable motor operating temperatures during operation.
| Model | SW3H-10500 |
| Rated power | 105 HP / 78 kW |
| Exhaust volume 50/60 Hz | 286 / 343 m³/hr |
| Weight | 535 kg |
| Capacity regulation | 100%, 75%, 50%, 25% (stepless 100%–25%) |
| Standard motor | Y/△ – 400V/3/50Hz – 460V/3/60Hz |
| LRA Y/Δ | 338 / 1015 A |
| Max operating current | 180 A |
Q1: What information is required to confirm the cooling capacity of this compressor?
For semi-hermetic screw compressor selection, provide the required cooling capacity, refrigerant, evaporating and condensing temperatures, and operating frequency. The SW3H-10500 has a nominal motor power of 105 HP and a displacement of 286 m³/h at 50 Hz and 343 m³/h at 60 Hz; actual cooling capacity must be verified against manufacturer performance data.
Q2: Which piping connections should be considered during system installation?
When installing a semi-hermetic screw compressor, verify the 80 mm suction connection, 54 mm discharge connection and 16 mm oil-line connection. Ensure the connecting pipes are correctly sized, clean and properly supported.
Q3: What electrical requirements should be checked before commissioning?
The standard motor supports 400V/3/50Hz and 460V/3/60Hz three-phase supplies with star-delta starting. The specified starting current is 338/1015 A, and the maximum operating current is 180 A; confirm starter selection, cable sizing and electrical protection before startup.
Q4: How can compressor capacity be matched to changing refrigeration loads?
This high-temperature screw compressor supports four-stage capacity regulation at 25%, 50%, 75% and 100%, or stepless regulation from 25% to 100%. The selected control method should be compatible with the refrigeration system controller and its actual load requirements.
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