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High-Efficiency Rotor Geometry: Patented asymmetric rotor profile ensures smooth meshing and continuous gas displacement, delivering robust compression performance for heavy-duty screw compressor HVAC applications.
Flexible Stepless Capacity Regulation: Provides 4-step capacity control (100%, 75%, 50%, 25%) and continuous stepless modulation to match high-capacity chiller loads precisely in a screw compressor HVAC system.
Integrated Multi-Stage Oil Separation: Built-in internal oil separator achieves up to 99.85% separation efficiency, minimizing oil carryover and maintaining optimal heat exchange performance in large screw compressor HVAC units.
Advanced Motor Thermal Protection: Equipped with an INT69 SNY protection module and six embedded PTC thermistors for real-time monitoring of motor coils and discharge gas temperatures.
Q: What design guidelines should be followed when sizing suction and discharge headers for the class="lazy" src="/myres/images/load_icon.gif" data-original-S(W)-553 (class="lazy" src="/myres/images/load_icon.gif" data-original-S-553-L4) compressor?
A: Piping must match the 105.5 mm (4-1/8") suction line and 80.0 mm (3-1/8") discharge connection to prevent pressure drops and ensure smooth refrigerant flow.
Q: How does the slide valve control mechanism operate during variable chiller load demands?
A: The hydraulic slide valve shifts via solenoid valves to provide stepped control at 100%, 75%, 50%, and 25%, or continuous stepless modulation across the 100% to 25% range.
Q: What pre-start electrical checks are necessary before energizing the 220 HP motor?
A: Verify that the 275W crankcase heater has been energized to evaporate liquid refrigerant, check phase rotation sequence, and confirm proper wiring of the INT69 SNY protection module.
Q: What routine maintenance practices ensure reliable long-term oil management in this high-capacity unit?
A: Regularly monitor oil level visibility through the sight glass, inspect suction strainer cleanliness, and periodically test lubricant viscosity and acidity.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2001
Total Annual:
50000000-10000000
Employee Number:
30~100
Ecer Certification:
Verified Supplier
Shenzhen Coolstart Refrigeration Equipment Co., Ltd. is a modern, professional refrigeration manufacturer with over 20 years of industry experience. We focus on the professional production and global sales of high-performance refrigeration equipment, serving as a reliable and cost-effective suppli...
Shenzhen Coolstart Refrigeration Equipment Co., Ltd. is a modern, professional refrigeration manufacturer with over 20 years of industry experience. We focus on the professional production and global sales of high-performance refrigeration equipment, serving as a reliable and cost-effective suppli...