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1. Superior Heat Exchange Efficiency:
High-quality copper tubes mechanically expanded with aluminum fins create a large heat exchange area and tight bonding, significantly improving thermal performance and increasing heat transfer efficiency by at least 15% compared to conventional designs.
2.Compact & Space-Saving Design:
The tight FNU Type Compact / Finned Air-Cooled Condenser structure with corrosion-resistant steel plate shell and plastic spray coating saves valuable installation space while maintaining a beautiful, durable appearance — ideal for space-constrained cold rooms and industrial setups.
3.Reliable Refrigeration Components:
Equipped with robust, high-pressure-tolerant parts and professional outer rotor axial fans that provide large air volume with low noise and smooth operation, enhancing the overall stability and longevity of the Evaporator Coil Condensing Freezer Condensing Unit.
4.Energy Efficient & Low Noise Operation:
Optimized airflow and low-speed fan motors reduce energy consumption and operating noise, making the unit suitable for hotels, supermarkets, hospitals, and other noise-sensitive environments.
5.High Durability & Safety:
Passed rigorous 2.5 MPa air tightness testing and system cleaning, ensuring leak-proof performance under high pressure and long-term reliable service across various refrigerants (R22, R404A, R407C, etc.).
6.Versatile Application:
Perfectly matched as a Refrigeration Compressor Unit or standalone cooling condenser for cold rooms, walk-in freezers, commercial refrigeration, and HVAC systems.
Parameter | Common Range |
|---|---|
Condenser Type | FNU (U-type / Finned Air-cooled) |
Heat Exchange Capacity | 11.1-66KW |
Fan Diameter | 400-600mm |
Power of Fan | 2240W-4450W |
Air Volume | 24200-46570m³/H |
Voltage | 220V/380V/110V |
Weight | 50-80KG (e.g., FNU-50 is 50KG) |
Temperature Range | -20~-8°C / 8~18°C |
Compressor Type | Scroll / OEM |
Compressor Brand | Bitzer or other / OEM |
Refrigerant | OEM / R404a etc. |
Warranty | 1 year |
Core Components | Engine, Motor |
Place of Origin | Henan, China |
1. Cold Storage Rooms & Walk-in Freezers
The FNU Series Air Cooled Condenser is widely used in small to medium cold rooms for storing fruits, vegetables, meat, and seafood. Its compact U-type design and efficient heat dissipation maintain stable temperatures from -20°C to +8°C, making it ideal for food preservation in warehouses and logistics centers. Easy installation and low maintenance are key advantages for cold storage projects.
2. Supermarkets & Retail Refrigeration
FNU condensers power display cabinets, reach-in coolers, and backroom freezers in grocery stores and supermarkets. They provide reliable cooling for dairy, beverages, frozen foods, and fresh produce while operating quietly. The compact footprint fits easily on rooftops or behind stores, helping retailers maintain consistent product quality with energy-efficient performance.
3. Food Processing & Blast Freezing
In food processing plants, the FNU Cold Room Condenser supports blast freezers and processing lines that require rapid cooling. It handles medium and low-temperature applications effectively, ensuring quick heat rejection and stable operation for meat, seafood, and ready-to-eat products. Its robust construction suits continuous industrial use.
4. Hotels, Restaurants & Commercial Kitchens
Restaurants, hotels, and catering facilities use FNU Air Cooled Condensers for walk-in coolers, ice machines, and kitchen refrigeration. The low-noise axial fans and reliable refrigeration components make them suitable for noise-sensitive indoor or outdoor installations, delivering consistent cooling for ingredients and prepared foods.
5. Cold Chain Logistics & Refrigerated Transport
FNU condensers are commonly chosen for cold chain warehouses, refrigerated containers, and distribution centers. They maintain precise temperatures during storage and transfer of temperature-sensitive goods such as pharmaceuticals, flowers, and perishable foods, offering simple installation in water-scarce or remote locations.
6. Small-Scale & Specialty Applications
Convenience stores, bakeries, butcher shops, pharmacies, and small laboratories use the compact FNU condenser for display cases, proofing rooms, medical refrigerators, and wine storage. Its space-saving design and high heat exchange efficiency provide cost-effective, dependable cooling for smaller refrigeration needs.
1. Safety First
Read this guide before operating the unit. Only qualified technicians should install or service the equipment. Ensure proper electrical grounding and ventilation. Do not operate with damaged fans, coils, or wiring. Disconnect power before maintenance. Keep the area clear of obstacles for safe airflow.
Installation Overview
Mount the FNU condenser on a stable, level surface with good airflow (minimum clearance as per specifications). Connect refrigerant lines securely (inlet/outlet pipes). Wire power supply according to the nameplate voltage. Perform a 2.5 MPa air tightness test and system evacuation before charging refrigerant. Check fan rotation direction.
2. Daily Operation
2. 1 Turn on the power supply.
The unit starts automatically when the compressor system calls for cooling.
Axial fans will run to reject heat from the condenser coil.
Monitor system pressures and temperatures via gauges or controller.
The compact U-type design ensures efficient heat dissipation with low noise.
Operation is fully automatic once the refrigeration system is running.
2.2 Startup Procedure
Verify all connections and refrigerant charge.
Switch on the main power.
Set the thermostat or controller to call for cooling.
Allow the system to stabilize for 10–15 minutes.
Check for normal fan operation, smooth running, and no unusual noises or vibrations.
Contact support if issues arise.
2.3 Basic Maintenance
Clean the finned coil monthly with water or compressed air (power off).
Check and tighten fan motors and mounts regularly.
Inspect for debris, corrosion, or leaks.
Ensure adequate airflow around the unit.
Schedule professional service annually for optimal performance and longevity.
2.4. Troubleshooting Tips
No cooling / fans not running: Check power supply and fuses.
High pressure or overheating: Clean condenser coil and ensure ventilation.
Unusual noise: Inspect fan blades and mounts.
For persistent issues, contact your supplier with the model number.
Q: What is the FNU condenser used for?
A: The FNU Series Air Cooled Condenser is designed for cold rooms, walk-in freezers, supermarkets, and small-to-medium refrigeration systems. It efficiently rejects heat from the refrigerant, helping maintain stable temperatures for food storage, cold chain logistics, and commercial cooling applications.
Q:Can the FNU condenser be installed outdoors?
A: Yes, the FNU condenser is built for outdoor installation. Its compact U-type box design, corrosion-resistant steel shell, and weatherproof coating make it suitable for rooftops or ground mounting, as long as there is good airflow and clearance around the unit.
Q: How do I maintain the FNU condenser for best performance?
A:Clean the finned coil monthly with water or compressed air to remove dust and debris. Check fan operation regularly, ensure proper airflow, and schedule professional service once a year. Regular maintenance improves heat exchange efficiency and extends the unit’s service life.
Q: Why is my FNU condenser not cooling properly?
A: Common causes include a dirty condenser coil, insufficient airflow, low refrigerant charge, or blocked fans. Clean the fins thoroughly, check for obstructions, and verify refrigerant levels. If the problem persists, contact a qualified technician to inspect the system.
Q: What is the warranty and technical support for FNU condensers?
A: We provide a standard 1-year warranty covering manufacturing defects, with free parts replacement and online/video technical support. Extended compressor warranty may be available. Please keep your model number and purchase details for quick assistance.
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