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What Is AHU (Air Handling Unit) in Facilities Management: An Introduction

What Is AHU (Air Handling Unit) in Facilities Management: An Introduction

Introduction to AHU

Are you familiar with the unsung hero of facilities management? The behind-the-scenes workhorse that ensures optimal indoor air quality and comfort for building occupants? Allow me to introduce you to the Air Handling Unit, or AHU for short. While it may not be a household name, this essential component plays a crucial role in maintaining a healthy and comfortable environment within commercial buildings. In this blog post, we will delve into the key components of an AHU, its functions in facilities management, different types of AHUs and their uses, as well as the benefits they bring. So buckle up and get ready to explore the world of AHUs!

Key Components of an AHU

When it comes to understanding the inner workings of an Air Handling Unit (AHU), knowing its key components is essential. These components work together seamlessly to ensure proper air circulation and ventilation in a facility.

First up, we have the fan section, which includes a motor and blades responsible for drawing in external air or recirculating indoor air. The filters play a crucial role in removing dust, pollen, and other airborne particles from the incoming air stream.

Next, we have the heating and cooling elements. This can include coils that use hot water or steam for heating purposes and chilled water coils for cooling. These elements help regulate the temperature of the air being circulated within a facility.

The AHU also contains dampers that control airflow by opening or closing to maintain desired conditions. Additionally, there are sensors that monitor factors such as temperature, humidity levels, and pressure inside the unit.

Other important components include sound attenuators that reduce noise levels produced by the unit’s operation and insulation materials to prevent heat loss or gain.

Each component plays a vital role in ensuring efficient functioning of an AHU system. Understanding these key components helps facilities managers troubleshoot any issues that may arise during operation without delay.

Functions of an AHU in Facilities Management

Functions of an AHU in Facilities Management:

An air handling unit (AHU) plays a crucial role in the efficient functioning of facilities management. It is responsible for maintaining and regulating the quality and circulation of air within a building. But what exactly are the functions that make an AHU so important?

An AHU helps to control and adjust the temperature levels inside a building. By utilizing heating or cooling coils, it can effectively regulate the temperature according to specific requirements.

An AHU ensures proper ventilation by controlling the airflow rate and distribution throughout different areas of a facility. This is essential for maintaining healthy indoor air quality.

Additionally, an AHU filters out dust particles, allergens, and other contaminants from incoming air before circulating it back into the building. This greatly contributes to creating a clean and healthy environment for occupants.

Furthermore, an AHU helps to maintain humidity levels within optimal ranges through humidification or dehumidification processes. This is particularly important in certain industries where precise moisture control is necessary.

Moreover, an AHU aids in sound attenuation by minimizing noise pollution generated by mechanical equipment such as fans or motors. This enhances overall comfort levels for individuals working or residing in the building.

Some advanced AHUs also incorporate energy recovery systems which capture and reuse waste heat from outgoing air streams. This promotes energy efficiency by reducing heating or cooling loads on HVAC systems.

In conclusion,

The functions performed by an Air Handling Unit (AHU) are vital for effective facilities management. From temperature regulation to ventilation control, filtration to humidity adjustment – each task contributes towards creating a comfortable and healthy indoor environment while optimizing energy consumption

Types of AHUs and Their Uses

Types of AHUs and Their Uses

When it comes to air handling units (AHUs), there are various types available, each designed for specific purposes and applications. Let’s take a closer look at some common types of AHUs and their uses.

1. Single Zone AHU: This type is commonly used in small spaces or single rooms where temperature control is required. It provides heating, cooling, ventilation, and filtration functions within a limited area.

2. Multiple Zone AHU: As the name suggests, this type serves multiple zones or areas within a facility. It can provide individualized temperature control for different sections while maintaining overall comfort levels.

3. Rooftop AHU: These units are installed on rooftops of buildings and are suitable for commercial or industrial facilities with limited indoor space. They offer efficient cooling, heating, ventilation, and filtering capabilities.

4. Modular AHU: Designed for easy customization and installation flexibility, modular AHUs consist of separate modules that can be assembled together to meet specific requirements of the facility.

5. Energy Recovery Ventilation (ERV) Units: ERV units help improve energy efficiency by recovering heat from exhaust air streams to pre-condition incoming fresh air supply.

6. Cleanroom Air Handling Units: These specialized units ensure precise control over airborne particles like dust, bacteria, or contaminants in critical environments such as laboratories or pharmaceutical manufacturing facilities.


VAV Systems : Variable Air Volume (VAV) systems use dampers that regulate airflow based on demand in different zones resulting in improved energy efficiency.

Each type has its own advantages depending on the needs of your facility management goals. Whether you require temperature control for small spaces or need advanced filtration capabilities for cleanrooms,
an appropriate choice will ensure optimal performance while addressing specific requirements.

Remember to consult with HVAC professionals who can guide you in selecting the right type of AHU based on your unique needs!

Benefits of Using AHUs in Facilities Management

Benefits of Using AHUs in Facilities Management

Efficient air management is crucial for maintaining a comfortable and healthy environment within facilities. This is where Air Handling Units (AHUs) come into the picture, providing numerous benefits for facilities management.

One of the primary advantages of using AHUs is improved indoor air quality. These units are equipped with filters that help remove dust, allergens, and other pollutants from the air, ensuring cleaner and healthier surroundings for occupants. By reducing airborne contaminants, AHUs can enhance overall well-being and reduce respiratory issues among building occupants.

Another key benefit of AHUs is their ability to regulate temperature and humidity levels. These units have sophisticated controls that allow facility managers to adjust settings according to specific requirements. This ensures optimal comfort while also preventing the growth of mold or bacteria caused by high humidity levels.

Energy efficiency is yet another advantage offered by AHUs. With advanced technology and variable speed drives, these units can optimize energy consumption based on real-time demand. By operating at lower speeds during periods of low occupancy or mild weather conditions, energy costs can be significantly reduced without compromising performance.

Furthermore, AHUs contribute to noise reduction within facilities. With sound attenuators installed as part of their design, they help minimize noise transmission through ventilation systems. This creates a quieter environment for occupants and improves overall productivity in workplaces such as offices or educational institutions.

Maintenance becomes easier with the use of AHUs in facilities management. These units are designed for easy access to components like filters or coils which require regular cleaning or replacement. Consequently, this reduces downtime during maintenance activities and ensures uninterrupted operation throughout the year.

Incorporating Air Handling Units into facilities management brings several notable benefits including improved indoor air quality, regulated temperature control, energy efficiency savings,
reduced noise levels,
and enhanced ease-of-maintenance.
By utilizing these powerful systems,
facilities can create a more comfortable,
and productive environment
for their occupants.

Common Issues and Maintenance Tips for AHUs

Common Issues and Maintenance Tips for AHUs

AHUs play a crucial role in maintaining the air quality and climate control within facilities. However, like any mechanical system, they can encounter issues that require regular maintenance to ensure optimal performance.

One common issue with AHUs is clogged air filters. Over time, dust and debris can accumulate in the filters, reducing airflow and causing strain on the unit. Regularly cleaning or replacing these filters is essential to maintain efficiency.

Another issue that may arise is motor failure. This can be caused by various factors such as overload, lack of lubrication, or electrical problems. Routine inspections should be conducted to identify any potential motor issues early on.

Leaky ducts are another problem faced by AHUs. Leaks not only waste energy but also compromise indoor air quality. Regular inspection of ductwork for leaks and proper sealing is necessary to prevent these issues.

Inadequate ventilation can also pose challenges for AHUs. Insufficient fresh air intake can lead to poor indoor air quality and discomfort for occupants. Maintaining proper ventilation rates through regular adjustment of dampers or controls is vital.

To keep your AHU running smoothly, preventive maintenance is key. This includes tasks such as checking belts and pulleys for wear or misalignment, lubricating moving parts, inspecting electrical connections, calibrating sensors/controllers if applicable, among other routine checks recommended by manufacturers.

Remember that every facility’s HVAC system has unique requirements – it’s best to consult with an experienced technician who specializes in AHU maintenance to address specific concerns efficiently!

By staying proactive with regular inspections and adhering to manufacturer guidelines regarding maintenance procedures, you can ensure that your AHU operates optimally while minimizing unexpected breakdowns!



In this article, we have delved into the world of AHUs (Air Handling Units) in facilities management and gained a better understanding of their importance and functions. We explored the key components that make up an AHU, such as filters, coils, fans, and controls. These components work together to ensure proper ventilation and air quality within buildings.

We also discussed the various functions of an AHU in facilities management. From regulating temperature and humidity levels to removing contaminants from the air, AHUs play a crucial role in creating a comfortable and healthy indoor environment for occupants.

Additionally, we looked at different types of AHUs and their specific uses. Whether it’s rooftop units for commercial buildings or modular units for industrial settings, there is an AHU solution available for every facility’s unique requirements.

One cannot overlook the many benefits that come with using AHUs in facilities management. Improved indoor air quality leads to healthier occupants and increased productivity. Energy efficiency features help reduce operating costs while environmental sustainability is prioritized.

However, like any mechanical system, AHUs are not immune to issues. Regular maintenance is essential to prevent breakdowns or performance issues. Cleaning filters regularly, inspecting coils, lubricating fan motors – these simple steps can go a long way in ensuring smooth operation of your AHU.

In conclusion (without saying “in conclusion”), understanding what an Air Handling Unit does in facilities management allows facility managers and owners alike to make informed decisions about their HVAC systems’ design and maintenance needs.
By investing time into learning about these crucial pieces of equipment – their functions,
types & uses- one can optimize energy consumption while ensuring occupant comfort
and well-being within any building.
So if you’re looking for ways to enhance your facility’s indoor environment,
consider incorporating an efficient Air Handling Unit into your HVAC system today!