An Overview of Maintaining Air Handling Unit
Air handling unit, or AHU, is part of HVAC systems. It controls the internal environment and retains clean, fresh air quality, temperature, and humidity standards within a building. AHUs are applicable in hospitals, offices, schools, etc. Moreover, an area identified by the presence of an ICU curtain generally depends on AHUs to achieve suitable environmental conditions. Like many other mechanical systems, a major aspect of AHU is maintenance, which will guarantee their performance, durability, and effectiveness.
What is an Air Handling Unit?
An air handling unit (AHU) refers to an HVAC system in which air is supplied along a duct. It preserves the quality of air and conditions it for either heating or cooling it before supplying it in confined areas. These include filter racks, blower mechanisms, heating or cooling coils, dampers, belts, and steam or hot water heating humidifiers. These components cooperate to keep the constant circulation of fresh air with purgers.
Importance of AHU Maintenance
Practical maintenance is unavoidable for an AHU to be efficient when in operation. The servicing, if done in time, reduces repair costs, enhances the life span of equipment, and also helps in avoiding time wastage. Some correctives imply the inspection of the outer air damper, the substitution of the filters, the cleansing of the heating coils, the revision of the belts, and the control of the ideal humidity. A predictive maintenance course of action can drive additional performance through the use of sensors.
Maintenance Activities Checklist for AHUs
- Filters should be cleaned or replaced so that fresh air is circulated in the building.
- Function and condition of belts and sheaves for proper fan operation by inspection and lubrication.
- Airflow obstruction should not be an issue. Thus, it is important to clean the supply fan and casing.
- Heat coils and drain pipes must be properly checked for their temperature regulation.
- The temperature of air should be carefully observed and should be uniform, as this refers to the distribution of airflow across the coils.
Conclusion
In conclusion, to salvage the useful life of an AHU, it is important to do some maintenance on the unit to run effectively. Different and varied spaces, such as modular operation theatre and ICU curtains, are located in an AHU. These tools maintain certain conditions within a building to deliver good air quality.
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