Air-Cooled Condensing Units for Cold Chain Logistics & Food Processing Facilities
Engineered by xnair for demanding 24/7 refrigeration duty across cold storage warehouses, food freezing tunnels, pharmaceutical cold rooms, and supermarket rack systems. Available from 3HP to 30HP with multi-refrigerant compatibility and global power supply configurations.
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Technical Specifications — Air-Cooled Condensing Unit Series
| Model | Nominal HP | Cooling Capacity (kW) @ -10°C ET / 45°C CT |
Compressor Type | Power Supply | Refrigerant | Sound Level dB(A) @10m |
Dimensions L×W×H (mm) |
Weight (kg) |
|---|---|---|---|---|---|---|---|---|
| XN-AC03 | 3 HP | 8.5 | Hermetic Scroll | 220-240V/1PH/50Hz 208-230V/1PH/60Hz |
R404A / R448A | 54 | 1050×520×980 | 128 |
| XN-AC05 | 5 HP | 14.2 | Hermetic Scroll | 380-415V/3PH/50Hz 460V/3PH/60Hz |
R404A / R448A / R449A | 57 | 1180×580×1060 | 172 |
| XN-AC10 | 10 HP | 29.8 | Hermetic Scroll | 380-415V/3PH/50Hz 460V/3PH/60Hz |
R404A / R448A / R449A | 62 | 1420×720×1280 | 285 |
| XN-AC15 | 15 HP | 43.5 | Semi-Hermetic Recip. | 380-415V/3PH/50Hz 460V/3PH/60Hz |
R404A / R448A / R449A | 65 | 1680×820×1420 | 410 |
| XN-AC20 | 20 HP | 58.0 | Semi-Hermetic Recip. | 380-415V/3PH/50Hz 460V/3PH/60Hz |
R404A / R448A / R449A | 67 | 1850×880×1550 | 540 |
| XN-AC30 | 30 HP | 86.0 | Semi-Hermetic Recip. | 380-415V/3PH/50Hz 460V/3PH/60Hz |
R404A / R448A / R449A | 70 | 2100×960×1720 | 730 |
* Cooling capacity rated at -10°C evaporating temperature / 45°C condensing temperature with 5°C superheat and 3°C subcooling. R290-compliant variants available upon request with ATEX electrical components. Custom voltage/frequency configurations supported for non-standard grids.
Target Application Scenarios
Cold Chain Logistics & Cold Storage
xnair units sustain temperatures from -25°C to +5°C across multi-room cold warehouses. High-static-pressure fans maintain airflow even through long duct runs, while the oversized condenser ensures stable head pressure during peak summer ambient conditions up to 48°C.
Food Processing & Blast Freezing
Rapid pull-down capability from ambient to -18°C within regulated timeframes. Stainless steel fasteners and corrosion-resistant coil coatings withstand frequent wash-down cycles in food-grade environments. Semi-hermetic models deliver the high compression ratios required for low-temperature freezing tunnels.
Pharmaceutical & Vaccine Cold Storage
Precision temperature control with ±0.5°C tolerance for GMP-compliant pharmaceutical warehouses. Dual-redundant unit configurations available with automatic switchover controllers. All refrigerant circuits are helium leak-tested to 1×10⁻⁶ mbar·L/s to prevent contamination risk.
Supermarket & Commercial Refrigeration
Low-noise fan options (as low as 48 dB(A) at 10m) for urban supermarket rooftops. Parallel rack configurations with centralized controllers support multiple evaporator circuits. Compatible with electronic expansion valves and supermarket BMS integration via Modbus RTU.
Engineering & Construction Details
- Compressor: Hermetic scroll (3HP–10HP) or semi-hermetic reciprocating (15HP–30HP) from globally recognized OEM suppliers. Internal thermal overload protection and crankcase heater pre-installed. Suction and discharge service valves included for field pressure testing.
- Condenser Coil: Copper tubes (Ø9.52mm or Ø12.7mm) mechanically expanded into corrugated aluminum fins with hydrophilic or epoxy anti-corrosion coating. Fin spacing of 2.1mm (standard) or 3.2mm (for dusty/sandy environments) to balance heat rejection and cleanability.
- Condenser Fan: Axial fan with aluminum blades and IP54-rated external rotor motor. Fan guard complies with ISO 13857 safety clearance. Available in standard (65 dB(A)) and low-noise (48–55 dB(A)) configurations. 230V/1PH/50Hz or 400V/3PH/50Hz motor options.
- Weatherproof Housing: Galvanized steel frame with powder-coated finish (RAL 7035 light grey). Removable side panels for service access. Integral rain hood over the condenser coil prevents water ingress while maintaining unrestricted airflow. All fasteners are stainless steel grade 304.
- Control & Safety: Factory-wired panel includes phase sequence relay, high/low pressure switches (manual reset), compressor contactor, and terminal block for field connection. Optional: electronic controller with real-time superheat display, Modbus RTU communication, and remote alarm output.
- Refrigerant Circuit: Brazed copper connections throughout. Liquid line filter-drier and sight glass with moisture indicator standard on all models. Suction accumulator included on units ≥10HP. Each circuit is pressurized with dry nitrogen to 28 bar(g) for 24-hour factory leak testing before refrigerant charge.
Global Adaptability — Engineered for Every Climate Zone
Africa & Middle East — Extreme Heat & Dust Resilience
xnair units destined for high-ambient regions are equipped with oversized condensers providing 15–20% additional heat rejection surface area compared to standard models. The condenser fin spacing is widened to 3.2mm to resist sand and dust clogging, while the fan motor is upgraded to Class H insulation (180°C rating) for prolonged operation at 48–50°C ambient. The weatherproof housing receives an additional UV-stabilized topcoat to prevent powder-coating degradation under intense solar radiation. All electrical enclosures maintain IP65 rating with Gore-Tex breather vents to equalize pressure while blocking fine desert dust ingress.
Europe & North America — Low-GWP Compliance & Regulatory Certification
For EU markets subject to F-Gas Regulation (EU) 517/2014 and its phasedown schedule, xnair offers R290 (propane, GWP=3) and R448A (GWP=1387) pre-configured variants. R290 units include ATEX-compliant electrical components (Ex-certified contactors, sealed terminal boxes) and a factory-installed refrigerant leak detection system with automatic ventilation trigger. All units shipped to Europe carry CE marking under PED 2014/68/EU (Category II) and MD 2006/42/EC. For North America, UL 60335-2-34 compliant configurations with 208-230V/3PH/60Hz or 460V/3PH/60Hz power supply are available, complete with cULus marking where required.
Southeast Asia & South America — High Humidity, Corrosion & Transport Ruggedness
Coastal and tropical deployments demand enhanced corrosion protection. xnair applies an epoxy coil coating (salt-spray tested to 2,000 hours per ASTM B117) and upgrades all external fasteners to 316 stainless steel. The control panel is fitted with an anti-condensation heater to prevent internal moisture buildup during frequent dew-point crossings. For transport over unpaved or mountainous roads common in South American and Southeast Asian inland logistics, each unit is bolted to a reinforced steel skid with M12 anchor points and shipped inside a fumigated plywood crate with internal shock-absorbing polyurethane corner blocks, ensuring the unit arrives on-site fully intact and factory-tested.
Export-Grade Logistics & Packaging
ISPM-15 compliant fumigated crate with shock indicators for ocean freight
100% full-load factory run test with digital performance logging
Every xnair air-cooled condensing unit is packaged for global export. Units are bolted to a heavy-gauge steel pallet base and enclosed in a fumigated plywood crate compliant with ISPM-15 international wood packaging standards. Internal polyurethane corner blocks absorb transit shocks, while humidity indicator cards and shock-watch labels provide visual confirmation of handling conditions during the journey. Standard crate dimensions accommodate 20ft and 40ft container loading with optimized stacking patterns — up to 12 units of the XN-AC10 model per 40ft HQ container.
Factory Quality Control — Every Unit Tested Before Shipment
At xnair's manufacturing facility in Shanghai, each air-cooled condensing unit undergoes a rigorous five-stage testing protocol before being cleared for export packaging:
- Stage 1 — Pressure Integrity: The complete refrigerant circuit is pressurized with dry nitrogen to 28 bar(g) and held for 24 hours. A pressure drop exceeding 0.1 bar triggers automatic rejection and re-brazing.
- Stage 2 — Vacuum Dehydration: The circuit is evacuated to below 200 microns (0.27 mbar) using a two-stage vacuum pump with a vacuum gauge logged at 30-minute intervals to confirm moisture removal.
- Stage 3 — Full-Load Run Test: The unit is connected to a calibrated calorimeter test bench and run continuously for a minimum of 4 hours at rated conditions (-10°C ET / 45°C CT). Cooling capacity, power consumption, and coefficient of performance (COP) are digitally recorded and compared against the factory acceptance tolerance of ±3%.
- Stage 4 — Electrical Safety: Insulation resistance (≥100 MΩ at 500V DC), earth continuity (≤0.1Ω), and dielectric strength (1,500V AC for 60 seconds) tests are performed in accordance with IEC 60335-2-34.
- Stage 5 — Final Visual & Dimensional Inspection: Trained inspectors verify all labels, paint finish quality, fastener torque marks, and external dimensions against the engineering drawing before the unit is approved for crating.
Frequently Asked Questions from Global Buyers
Cooling capacity selection depends on room volume, target temperature, product load (kg/day), door opening frequency, and local ambient conditions. As a reference, a 10HP xnair air-cooled condensing unit delivers approximately 29.8 kW at -10°C evaporation / 45°C condensing — sufficient for a 300–400 m³ frozen storage room at -18°C under typical conditions. We recommend sharing your specific requirements via our contact form so our engineers can perform a precise heat load calculation using Coolselector®2 methodology.
Yes. xnair units are engineered with oversized condensers and high-static-pressure axial fans that sustain full-load operation at ambient temperatures up to 48°C without tripping the high-pressure safety switch. For deployments in the Middle East and sub-Saharan Africa, we specify a condenser with 15–20% additional surface area and widen the fin spacing to 3.2mm to prevent sand and dust clogging. The fan motor insulation class is upgraded to Class H (180°C rating) for extended high-temperature durability.
Standard units ship with R404A or R448A/R449A refrigerant charge. For European customers requiring compliance with the EU F-Gas Regulation's low-GWP mandates, we offer R290 (propane, GWP=3) ready configurations. R290 units include ATEX-compliant electrical components (Ex-certified contactors, sealed terminal enclosures) and a factory-installed hydrocarbon leak detection sensor with automatic ventilation relay. Please specify "R290 configuration" when submitting your inquiry so we can provide the correct technical documentation.
xnair maintains a dedicated spare parts inventory covering compressors, fan motors, condenser coils, control boards, pressure switches, and filter-driers for all active model series. Parts can be dispatched via air freight (DHL / FedEx) within 72 hours of order confirmation. During the 12-month warranty period, we provide complimentary remote video diagnostics via WhatsApp or Zoom to assist your local technician with installation and troubleshooting. Extended warranty and on-site commissioning by xnair engineers are available as optional service packages for large projects.
Quality Assurance & Industrial Certifications
Shanghai XiangNing Electromechanical Equipment Co., LTD (xnair brand) operates under an ISO 9001:2015 certified quality management system. Our air-cooled condensing units carry CE marking under the Pressure Equipment Directive (PED 2014/68/EU, Category II) and Machinery Directive (2006/42/EC). Electrical safety compliance is verified per IEC 60335-2-34.
Every unit is backed by a 12-month warranty from the date of bill of lading, covering manufacturing defects in materials and workmanship. Warranty claims are processed within 5 business days with photographic evidence and a completed warranty claim form.
We maintain product liability insurance through Ping An Insurance (Group) Company of China, Ltd., covering global export markets. Certificates of Origin (Form E / Form F for preferential tariff treatment) and full technical documentation packages are included with every shipment at no additional cost.