The Refcomp SW3H-6000 is a 60HP (45kW) semi-hermetic screw compressor designed for R410a HVAC systems. It combines internal pressure protection, flexible capacity regulation, a precision multi-bearing design and intelligent motor protection to deliver stable, efficient performance under varying load conditions.
The SW3H-6000 features an internal safety valve connecting the high- and low-pressure sides. Its precise opening and reset help protect the semi-hermetic screw compressor against excessive internal pressure differences, adding an important safeguard during abnormal operating conditions.
For screw compressor HVAC systems with variable cooling demand, the SW3H-6000 offers four-step or stepless capacity control. This allows compressor output to follow changing loads, reducing unnecessary full-capacity operation and improving system load matching.
The carefully arranged bearing system accommodates both axial and radial loads, helping maintain stable rotor movement. Precision fitting and effective lubrication reduce mechanical friction and operating noise, supporting reliable operation and minimizing wear on critical components.
The INT69 SNY protection module monitors motor overheating, reverse phase sequence and phase loss. Combined with motor temperature sensors and operating-status feedback, it helps prevent electrical damage and makes abnormal operating conditions easier to identify.
| Model | SW3H-6000 |
|---|---|
| Rated power | 60HP / 45KW |
| Displacement 50/60Hz | 175 / 210 m³/hr |
| Weight | 265KG |
| Capacity Regulation | 25%, 50%, 75%, 100% 4-step; 25%–100% stepless |
| Standard Motor | Y/△ – 400V/3/50Hz – 460V/3/60Hz |
| Star/Delta Start Current | 182 / 547A |
| Max operating current | 105A |
For screw compressor HVAC selection, provide the required cooling capacity, refrigerant, evaporating and condensing temperatures, power supply and expected load conditions. These details help determine whether the compressor matches the system's operating requirements.
When integrating this refrigeration screw compressor, check the suction and discharge piping connections, oil-line arrangement, mounting dimensions and available service space. Confirm compatibility with the existing system drawings before installation.
For this 60 HP screw compressor, verify that the site power supply matches the motor specifications and that the star-delta starter is correctly wired. Check the phase sequence, protection circuit and electrical connections before startup.
During screw compressor HVAC operation, check the motor temperature, phase sequence, power supply and protection wiring if the INT69 SNY module signals a fault. Identify and resolve the underlying problem before restarting the compressor.
