Industrial Air-Cooled Condensing Units – Precision Engineering for Commercial Refrigeration Excellence
Engineered for demanding applications in food processing, cold storage logistics, and pharmaceutical preservation, these units feature aerospace-grade aluminum alloy fins and internally threaded copper tubes to enhance heat exchange efficiency. The semi-hermetic screw compressor with slide valve capacity control achieves 25–100% uninterrupted modulation, delivering 18–22% energy savings versus conventional models.
Technical Depth:
Energy Efficiency: CFD-optimized axial fan arrays with variable frequency drives (VFDs) improve EER by 30% under partial loads, meeting EU ERP Lot 21 directives.
Environmental Robustness: Phase-loss protection and voltage fluctuation compensation (±15% tolerance) ensure stability in unstable power grids.
Serviceability: Full-access panel design enables 15-minute component access, with pressure gauge windows reducing inspection time by 60%.
Smart Connectivity: Embedded 4G module enables remote diagnostics and predictive maintenance, with fault alerts pushed to mobile devices.
Application-Specific Solutions:
Blast Freezers (-35°C to -40°C): Dual-compressor parallel systems for stepped temperature control.
Chilled Storage (-5°C to 5°C): Electronic expansion valves maintain ±0.5°C superheat accuracy.
Climate-Controlled Facilities (18°C to 25°C): Integrated humidity control modules.
Extreme Environments: Optional sandstorm filters and electric defrost systems.
Quality Assurance:
2,000-hour salt spray and -40°C to 80°C thermal shock testing for critical components.
48-hour factory burn-in under full load for every unit.
100% helium leak detection (≤5g/year leakage rate) for all welded joints.
Compressor Technology: Equipped with semi-hermetic screw compressors featuring slide valve capacity regulation, enabling seamless 25–100% load adaptation. Dual-stage compression design minimizes temperature fluctuations during defrost cycles.
Energy Efficiency Optimization: Integrates adaptive VFDs on axial fans and compressors, reducing power consumption by 18–22% under partial loads. Advanced algorithms adjust fan speeds based on real-time ambient conditions.
Thermal Management: Proprietary fin-and-tube geometry with hydrophilic coating prevents frost buildup in humid environments. Microchannel condenser coils enhance heat rejection efficiency by 15% compared to traditional designs.
Refrigerant Management: Dual-circuit refrigeration systems allow isolated operation for critical applications. Integrated liquid line filter-driers with sight glasses simplify maintenance and prevent system contamination.
Control Logic: PID-based microprocessor controller with Modbus RTU/TCP enables integration with building management systems (BMS). Alarm history logging and trend analysis tools aid predictive maintenance.
Site Preparation: Ensure 1.5m clearance around the unit for airflow. Level concrete foundation with anti-vibration pads required. Verify power supply compatibility (380V–480V/3Ph/50Hz) and install dedicated circuit breaker.
Refrigerant Handling: Charge with specified refrigerant type (R134a/R404A/R513A) using manifold gauge set. Verify superheat/subcooling values post-charge.
Startup Sequence: Initial 4-hour dry run to detect abnormal vibrations. Log compressor discharge temperatures and oil levels during break-in period.
Standard Accessories:
Powder-coated steel frame with forklift slots.
5m pre-insulated refrigerant lineset.
Wall-mounted controller with 7-day programmable timer.
Optional Upgrades:
Environmental: Tropical kit (high-temperature fan motors, corrosion-resistant coating); arctic kit (crankcase heater, synthetic lubricant).
Safety: ATEX-certified explosion-proof motor; ammonia detection system.
Utility: Hot gas bypass valve; dual-circuit failover module.
Customization:
Voltage conversion (220V/60Hz available upon request).
Custom paint finishes (RAL color matching).
BMS protocol adaptation (BACnet/IP, LonWorks).
After-Sales Support
Technical Assistance: 24/7 multilingual helpdesk via email/phone. Remote diagnostics using embedded 4G module.
Warranty: 18-month comprehensive warranty (12 months standard + 6 months optional extension). Covers parts and labor for compressor failures.
Spare Parts: 95% parts availability within 48 hours (mainland China); 7–10 days for international orders via DHL/FedEx.
