An Introduction to AS 1668.2

AS 1668.2 is an important Australian standard that outlines the requirements for mechanical ventilation systems in buildings. As a graduate in the field of building services engineering or a related field, it is essential to have a good understanding of this standard and its key sections, as well as its implications for the design, installation, and maintenance of ventilation systems.

One of the key sections of AS 1668.2 is Clause 4.2, which outlines the requirements for exhaust ventilation systems. This clause specifies the minimum ventilation rates for various spaces within a building, including bathrooms, kitchens, and laundries. As a graduate, it is important to understand the implications of this clause for the design of ventilation systems. This includes selecting appropriate fans, determining the location of exhaust outlets, and ensuring that the system is capable of achieving the required ventilation rates.

Another important clause in AS 1668.2 is Clause 5.2, which covers the design of supply ventilation systems. This clause outlines the requirements for the minimum outdoor air supply rates for various spaces within a building, including offices, conference rooms, and classrooms. As a graduate, it is important to understand the implications of this clause for the design of air supply systems. This includes selecting appropriate air handling units, determining the location of supply outlets, and ensuring that the system is capable of achieving the required outdoor air supply rates.

Clause 6.2 of AS 1668.2 covers the requirements for balanced ventilation systems. This clause outlines the requirements for the design and operation of systems that supply and exhaust air in equal quantities. As a graduate, it is important to understand the implications of this clause for the design of ventilation systems. This includes selecting appropriate air handling units, determining the location of supply and exhaust outlets, and ensuring that the system is capable of achieving the required airflow balance.

AS 1668.2 also covers the installation and maintenance of mechanical ventilation systems. Clause 7.1 outlines the requirements for the installation of these systems, including the need for appropriate ductwork, air filters, and other components. Clause 7.2 covers the requirements for the commissioning of these systems, including testing and balancing to ensure that they are operating as intended. Finally, Clause 7.3 covers the requirements for the ongoing maintenance of these systems to ensure that they continue to operate efficiently and effectively.

As a graduate, it is important to understand the implications of these clauses for the design, installation, and maintenance of mechanical ventilation systems. This includes understanding the importance of selecting appropriate components, determining the correct location of supply and exhaust outlets, and ensuring that the system is capable of achieving the required ventilation rates or airflow balance. It is also important to understand the requirements for commissioning and ongoing maintenance to ensure that the system continues to operate efficiently and effectively over time.

In conclusion, AS 1668.2 is a crucial standard for anyone involved in the design, installation, or maintenance of mechanical ventilation systems in buildings. As a graduate in the field of building services engineering or a related field, it is important to have a good understanding of this standard and its key sections, as well as its implications for the design, installation, and maintenance of ventilation systems. By adhering to the requirements of this standard, building owners and managers can ensure that their buildings are safe, healthy, and comfortable for all occupants.

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The Refrigeration Cycle

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The Design Process