AL-KO AT4 series
Volume flow: 1,000 - 200,000 m³/h
- Modular design: Foundation for ventilation and air handling systems across a wide range of applications.
- Certified to multiple standards: Tested in accordance with Eurovent specifications. Optional compliance with ATEX guidelines for use in potentially sensitive environments.
- Ideal for comfort, medical, chemical, and industrial applications.
- Mineral wool sound and heat insulation. Classified as building material class A1 and non-combustible in accordance with DIN 4102.
- High thermal and sound insulation:s 47 mm panel thickness.
- Ensures thermal decoupling between the inner and outer shells.
- Minimizes thermal bridges with a thermally separated frame profile.
- Rated energy efficiency class A, offering the best possible life cycle cost.
Versatile and modular
The AT4 modular system is the ultimate foundation for air handling units across a wide range of applications. Whether it's hospitals and medical facilities, central ventilation systems in office buildings, or air handling in shopping centers, exhibition halls, and conference centers, the AT4 delivers exceptional performance.
For specialized environments, the AT4 is available in a nautical version, making it perfect for swimming pools, spas, and wellness facilities. It also excels in clean room applications within the pharmaceutical and industrial sectors, and is ideal for maintaining critical data infrastructure in data centers.
Designed for flexibility, the AT4's weatherproof construction allows for reliable rooftop installation. Its modular design supports a broad performance range, efficiently handling air volumes from 1,000 to 200,000 m³/h.
Effortless maintenance and hygienic operation
The AT4 series is engineered for easy maintenance and superior hygiene, fully compliant with the VDI 6022 standard. Featuring completely smooth inner surfaces, these units are designed for effortless cleaning and upkeep. The floor pans are crafted from high-quality stainless steel, ensuring they meet the highest hygienic standards.
To maximize protection against corrosion, the housing panels are galvanized and powder-coated, with an optional stainless steel version available for even greater durability. This robust design guarantees long-lasting reliability across various applications.
Flexible and adaptable installations
The AT4 series features a dismountable unit design, ensuring easy installation and optimal adaptability to diverse structural conditions. With a variable grid dimension of 76.5 mm, the system can be precisely adjusted to meet specific installation requirements, offering a versatile solution for a wide range of applications.
Premium quality components and functional units
The AT4 series is built with a range of premium-quality components and functional units, sourced from our own product line and reputable manufacturers. Each component undergoes rigorous testing by AL-KO Airtech to ensure optimal performance and reliability. Our comprehensive offerings include:
• Housing
• Filters
• Heat recovery systems, including the HYDRO-OPT Heat Recovery System
• Heaters and coolers
• Integrated cooling solutions
• Sound absorbers
• Flaps and floor trays
• Fans and motors
• In-house developed modular control technology
This extensive selection guarantees that the AT4 series meets the highest standards of quality and functionality for diverse applications.
AL-KO Airtech offers the AT4 as a convenient plug & play solution upon customer request. The AT4 complete design features a high degree of industrial prefabrication, arriving ready-mounted on a load base frame, pre-wired, and with filled systems.
This approach ensures a seamless and efficient installation and commissionning process, saving time and reducing on-site labor.
For added convenience, the unit can also be transported to the roof by crane if desired.
Technical Specifications
| Heat Recovery | Plate heat exchanger Roatery heat exchanger Runaround coil system Mixing damper |
|---|---|
| Heating and Cooling | Water Heating Coil Water Cooling Coil Cangeover Coil Evaporator for external split unit Electric heater Integrated DX Cooling R513A Integrated DX Heat Pump R513A Split heat pump lose R32 Split heat pump lose R410A Split heat pump mounted on Baseframe R32 split heat pump mounted on Baseframe R410A Adiabatic humidifier for cooling |
| Energy saving system | Heat recovery Free cooling Adaptive Frequency™ Drive |
| Operating mode with AL-KO Controls | Fan control Temperature control Humidity control Air quality control CO2 Air quality control VOC Demand-based control Time program Building fire management Up to six room climate zones |
| Additional accessories | Hydroopt S (runaround coil system) Hydroopt M (runaround coil system) AL-KO controls AL-KO integrated cooling DX AL-KO pumpgroups |
| Certification | Eurovent ErP Manufacturers’ Association for AHU TÜV SÜD (DIN EN ISO 9001:2015) VDI 6022 DIN 1946 T2/TB2 acc. DIN EN 1886 ATEX conformity |
| Communications protocols | AL-KO REMOTE CONTROL BACnet IP BACnet MSTP Modbus IP Modbus RTU |
| Applications | Industry Data centers Food and Beverage Healthcare- Pharmaceutical Office buildings Hospitality Retail Events Process |
| Unit type | Individual Air Handling Units |
Resources
| Installation Operation Maintenance PDF document | Download |
|---|
AL-KO EASYAIR®
- Maximum energy efficiency with an IE4 motor and optimal economic performance.
- Certified for hygiene according to VDI 6022.
- Optimal thermal decoupling.
- Heat recovery options include a rotary heat exchanger or a plate heat exchanger with bypass.
- Fast and simple design using AL-KO AIRCLOUD.
Fan Wall Unit
- Key features include next-generation durable drives, optimized airflow management, and minimal operating noise, making it an ideal solution for modern data center environments.
- Ensures dependable climate control for high-density racks and large heat loads, with an extended air throw distance for uniform cooling in expansive server rooms.
- Modular design enhances redundancy and reliability, while the horizontal airflow wall installation simplifies setup and maintenance without the need for a raised floor.
- Optimized through advanced CFD analyses, the system delivers maximum cooling efficiency with minimal power consumption, and its base frame and panel construction are tailored for indoor environments.
- Offers versatile control options, including Delta T, differential pressure control, and room and return air management, all within a space and cost-efficient transport solution.
CRAH
- The unit delivers maximum cooling capacity with a minimal footprint, thanks to its innovative design and state-of-the-art fans that ensure efficient air distribution and reduced power consumption.
- Achieving the highest EER values through its maximized, hydrophilically coated heat exchanger and filter surfaces.
- Our proprietary control technology optimizes energy-efficient regulation based on various temperature inputs, including supply air, return air, room air, or server inlet temperature.
- The system offers flexibility with both integrated and external fan units, and features optimized water flow via a pressure-independent Energy Valve.
- Additionally, active and passive device redundancy can be achieved through advanced software functions, ensuring reliable operation.
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