Water Cooled Screw Chiller R134a R513A VSD 90-550RT
High Efficiency HVAC Industrial Efficiency Meets Commercial
Versatility
Product Overview
The Midea Water Cooled Screw Chiller series represents the pinnacle
of industrial cooling efficiency combined with commercial
versatility. Available in SHWE and SCWG series configurations with
R134a or R513A refrigerants, these chillers deliver capacities from
90 to 550RT, meeting the demanding requirements of large-scale
commercial and industrial applications.
The semi-hermetic twin-rotor screw compressors feature
precision-engineered asymmetric rotor profiles with five teeth
engaging six teeth at micron-level accuracy. SKF bearings ensure
50,000 hours of continuous operation, while variable speed drive
options enable infinite capacity modulation through sliding valve
technology.
With COP values reaching 5.55 and IPLV performance up to 7.26,
these chillers excel in applications requiring both full-load and
part-load efficiency. The flooded evaporators with liquid
distribution and baffle plates optimize heat transfer, while the
optimized condensers with enhanced tubes on both sides deliver
superior cooling performance.
Core Features
High-Efficiency Screw Compressors
The semi-hermetic twin-rotor screw compressors feature
five-tooth/six-tooth asymmetric rotor profiles engineered to
micron-level precision. SKF bearings provide reliable operation for
50,000 continuous operating hours, ensuring long-term reliability
in demanding applications.
Variable Speed Drive Options
Available in variable speed full-liquid (SCWG_EV) and fixed-speed
full-liquid (SCWG_E) configurations. The VSD models provide
stepless capacity modulation, optimizing energy consumption across
varying load conditions.
Flooded Evaporator Technology
The flooded evaporators utilize liquid distribution plates and
baffle plates to ensure optimal refrigerant distribution. This
design maximizes heat transfer efficiency while maintaining stable
leaving water temperatures.
Optimized Condenser Design
Condensers feature enhanced tubes on both refrigerant sides,
integrated oil separators, and subcooling sections. This
comprehensive optimization ensures superior heat rejection and
system efficiency.
Three-Stage Oil Separation
The advanced oil management system incorporates three-stage oil
separation technology. Combined with dual return oil systems and
Venturi ejector technology, this design ensures reliable compressor
lubrication under all operating conditions.
Differential Pressure Oil Supply
The system utilizes differential pressure for oil supply,
eliminating the need for external oil pumps. This passive oil
management approach improves reliability while reducing maintenance
requirements.
Wide Operating Range
Leaving water temperature ranges from 5°C to 15°C, with cooling
water entering temperatures from 19°C to 50°C. This flexibility
enables adaptation to various system configurations and application
requirements.
Comprehensive Protection Features
Over 20 protection functions ensure safe and reliable operation.
The 7-inch touch screen interface provides intuitive monitoring and
control, while RS485/Modbus-RTU connectivity enables seamless
building management system integration.
Low Noise Operation
Part-load noise levels as low as 65dB(A) ensure quiet operation for
noise-sensitive environments. This acoustic performance makes the
chillers suitable for installations near occupied spaces.
Application Scenarios
Large Commercial Complexes
Shopping malls, sports arenas, and convention centers benefit from
the high capacity and excellent part-load efficiency. The modular
configurations accommodate varying cooling demands across different
zones.
Industrial Facilities
Manufacturing plants, power generation facilities, and industrial
process cooling applications utilize the robust design and reliable
performance. The high COP values reduce operational costs for
energy-intensive operations.
Hospitality and Healthcare
Large hotels, hospitals, and healthcare facilities require reliable
24/7 cooling with excellent efficiency. The proven reliability and
comprehensive protection features ensure continuous operation for
critical applications.
Certifications & Standards
- AHRI Certified - AHRI certification for 5C and 17C SCWG series
- CE Marking - European safety and environmental compliance
- ISO 9001 - Quality management system certification
- ISO 14001 - Environmental management system certification
- LEED Compatible - Supports Leadership in Energy and Environmental Design
certification points
Technical Specifications
| Parameter | Specification |
|---|
| Refrigerant | R134a (SHWE/SCWG), R513A (SCWG 17C) |
| Cooling Capacity | 90-550 RT |
| COP Range | 5.36-5.55 |
| IPLV Range | 6.83-7.26 |
| Leaving Water Temp | 5°C to 15°C |
| Cooling Water Inlet | 19°C to 50°C |
| Max Noise (Part-load) | 65 dB(A) |
| Voltage | 380-415V/3Ph/50-60Hz |
| Control | 7" Touch Screen, RS485/Modbus-RTU |
AirBoost Series Air Cooled Screw Chiller with Free Cooling Technology AirBoost Industrial-Grade Air Cooled Screw Chillers Engineered for T3 Performance and Free Cooling Efficiency
