Refcomp SW3H-11500 115HP R407C High Capacity Commercial AC Screw Compressor
Refcomp SW3H-11500 screw compressor
,115HP R407C commercial AC compressor
,high capacity screw type compressor
The AC 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 loads.
An internal safety valve connects the high- and low-pressure sides, helping prevent excessive pressure differentials within the compressor and supporting safe system operation.
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.
The suction and discharge shut-off valves can rotate through 360°, providing greater flexibility for piping layout and installation. An internal discharge check valve helps prevent refrigerant backflow during shutdown.
| Parameter | Value |
|---|---|
| Model | SW3H-11500 |
| Rated power | 115HP / 89KW |
| Exhaust volume 50/60Hz | 318 / 382 m³/hr |
| Weight | 540 Kg |
| Capacity Regulation | 100%, 75%, 50%, 25% (stepless 100%–25%) |
| Standard motor | Y/△ – 400V/3/50Hz – 460/3/60Hz |
| LRA Y/Δ | 318 / 953 A |
| Max Operating Current | 182 A |
Q1: How can I confirm whether this compressor is suitable for my air conditioning system?
For AC screw compressor selection, provide the required cooling capacity, refrigerant, evaporating and condensing temperatures, and operating frequency. The selection should be checked against manufacturer performance data to ensure compatibility with your actual operating conditions.
Q2: How should capacity control be matched to changing cooling loads?
Choose four-step or stepless regulation according to the system's load variations and control strategy. Confirm that the selected control arrangement is compatible with the system controller before ordering.
Q3: What should be checked before connecting the compressor to an existing refrigeration system?
Check the suction, discharge and oil-line connections against the system piping drawings. Also confirm valve orientation, piping support and sufficient space for installation and future maintenance.
Q4: What should I check if the AC screw compressor's motor protection trips?
Check the INT69 SNY fault indication, power supply phase sequence, motor temperature and PTC sensor circuit. Identify the cause of the protection trip and correct the fault before restarting.
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