Air Handling Unit (AHU)

A Clean Room AHU System is designed for environments where air cleanliness, temperature, humidity, and pressure need to be controlled.

These AHUs can incorporate multiple filtration stages and hygienic internal construction according to the cleanliness classification and process requirements.

Possible components: pre-filter, fine filter, HEPA filter, cooling coil, heating coil, fresh-air damper, return-air damper, motorized dampers, humidity control, and differential pressure monitoring.

Applications: pharmaceutical manufacturing, biotechnology, medical facilities, electronics manufacturing, laboratories, research facilities, and controlled production areas.

Commercial Air Handling Units are designed for buildings where comfortable indoor temperature and adequate ventilation are required.

They can be configured for cooling, heating, fresh-air ventilation, filtration, and air distribution.

Applications: office buildings, hotels, shopping malls, retail spaces, airports, educational institutions, commercial complexes, and hospitals.

An Industrial Air Handling Unit is designed for demanding manufacturing and process environments.

Industrial AHUs can be engineered for higher airflow, specialized filtration, process cooling, temperature control, fresh-air handling, and continuous operation.

Applications: manufacturing plants, automobile industries, engineering facilities, chemical plants, food processing units, textile industries, and electronics manufacturing.

A Fresh Air Handling Unit is designed primarily to condition outdoor air before supplying it to a building or process area.

The unit may incorporate filtration, cooling, heating, dehumidification, and other air-treatment stages.

Applications: commercial buildings, industrial ventilation, hospitals, laboratories, production areas, and clean environments.

Modular AHUs are constructed from separate functional sections that can be configured according to the project requirements. Typical modules may include:

Mixing → Filtration → Cooling → Heating → Fan → Final Filtration → Supply

This arrangement allows greater flexibility in system configuration.

Hygienic AHUs are designed for applications where internal cleanliness and ease of maintenance are important.

The construction may include smooth internal surfaces, suitable insulation, accessible components, drainable sections, and application-specific filtration.

Applications: pharmaceutical facilities, hospitals, laboratories, food processing, and healthcare facilities.

Ceiling-mounted AHUs are designed where floor space is limited.

They can be installed above false ceilings or within dedicated ceiling spaces, subject to equipment weight, access, and maintenance requirements.

Floor-mounted AHUs are commonly used for larger commercial and industrial systems.

They provide convenient access to fans, filters, coils, dampers, and other components.

Vayuvents can manufacture customized AHUs according to airflow, static pressure, cooling capacity, heating capacity, filtration level, temperature, humidity, casing material, insulation, fan arrangement, installation location, and control requirements.

AHUs can be used for controlled ventilation and conditioning in:

• Operating theatres
• Isolation areas
• Patient rooms
• Laboratories
• General hospital areas
• Critical-care support areas
• The required filtration, pressure relationship, air changes, temperature, humidity, and airflow pattern depend on the specific healthcare application.

Industrial AHUs can provide temperature-controlled and filtered air for:

• Manufacturing areas
• Paint shops
• Assembly lines
• Component production
• Inspection areas
• Controlled process zones

Electronics and precision manufacturing facilities may require controlled temperature, humidity, filtration, and dust levels. AHUs can be used in:

• Electronics assembly
• Semiconductor support areas
• Component manufacturing
• Testing areas
• Controlled production rooms

AHUs can provide conditioned and filtered air for suitable food-processing environments. Applications include:

• Processing areas
• Packaging rooms
• Storage areas
• Production halls
• Temperature-controlled rooms
• Hygiene, filtration, humidity, and temperature requirements should be considered according to the specific food-processing application.

AHUs can be used for:

• Spinning
• Weaving
• Processing
• Garment manufacturing
• Humidity control
• Production-area ventilation
• Controlled humidity can be particularly important for some textile manufacturing processes.

Industrial AHUs can provide conditioned air and ventilation for:

• Production areas
• Laboratories
• Process rooms
• Storage facilities
• Controlled manufacturing areas
• Material compatibility and corrosion resistance should be considered where corrosive atmospheres are present.

AHUs can support environmental control in:

• Plastic manufacturing
• Injection moulding facilities
• Assembly areas
• Production rooms
• Warehouses

AHUs can be designed for laboratories requiring controlled temperature, filtration, ventilation, and fresh-air supply. They can be integrated with:

• Fume extraction systems
• Cleanrooms
• Laboratory ventilation
• Pressure-controlled rooms
• Specialized process areas

Commercial AHUs are widely used for centralized HVAC systems in:

• Offices
• Hotels
• Shopping malls
• Airports
• Restaurants
• Retail buildings
• Educational institutions
• Convention centres

Data centres require reliable thermal management because servers and IT equipment generate continuous heat. AHU-based systems can be designed to provide:

• Controlled supply-air temperature
• High airflow
• Air filtration
• Equipment-room ventilation
• Redundancy-oriented configurations
• The final HVAC design depends on the data-centre cooling architecture and heat load.

AHUs can be used where warehouse operations require controlled temperature, ventilation, or filtration. Applications include:

• Storage areas
• Distribution centres
• Packing areas
• Temperature-sensitive storage support
• Worker comfort areas

Proper fan and duct selection provides the airflow and pressure required by the HVAC system.

Different filtration stages can be incorporated according to the air cleanliness requirement.

Double-skin and application-specific casing configurations provide structural strength and thermal insulation.

Insulated panels help reduce unwanted heat transfer through the AHU casing.

Access doors and sectional construction allow convenient access to filters, coils, fans, dampers, and other components.

AHUs can be configured for floor-mounted, ceiling-mounted, indoor, outdoor, or customized installation arrangements.

VFDs, sensors, temperature controllers, humidity sensors, differential pressure monitoring, and BMS integration can be incorporated where required.