HVAC - AHU Filters

The video tutorial explains the functions and importance of primary and secondary filters in an AHU system. Primary filters capture dust using a pleated design, while secondary filters catch pollen and bacteria. The video also discusses the impact of dust accumulation on system efficiency and the importance of monitoring pressure differences to maintain energy efficiency.

Where should the filters be placed in relation to the heat cooling coils in an AHU system?

• After the coils

• Below the coils

• Before the coils

• Above the coils

What is the primary function of the primary filters in an AHU system?

• To humidify the air

• To catch dust particles

• To heat the air

• To cool the air

What is the typical design of primary filters to increase their dust-catching capacity?

• Spherical shape

• Pleated design

• Cylindrical shape

• Flat sheet

What type of particles are secondary filters primarily designed to capture?

• Smoke particles

• Water droplets

• Pollen and bacteria

• Large dust particles

How do secondary filters increase their surface area for capturing particles?

• By being flat

• By being rigid

• By inflating as air passes through

• By being made of metal

What is a potential consequence of using filters with high pressure resistance?

• Increased energy efficiency

• Increased energy consumption

• Reduced fan workload

• Decreased air quality

What can be achieved by switching to more energy-efficient filters in an AHU system?

• Significant energy savings

• Higher energy consumption

• Reduced air quality

• Increased dust accumulation