HVAC - AHU Filters

The video tutorial explains the role of air handling unit (AHU) filters in HVAC systems, focusing on primary and secondary filters. Primary filters capture dust using a pleated design, while secondary filters catch pollen and bacteria. The tutorial discusses the placement of filters, their material composition, and the importance of maintaining clean filters to prevent pressure drops and energy inefficiency. It also highlights the need to replace filters based on pressure readings to ensure optimal performance.

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

• To heat the air

• To catch dust particles

• To humidify the air

• To cool the air

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

• Spherical design

• Cylindrical design

• Pleated design

• Flat sheet design

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

• Pollen and bacteria

• Smoke particles

• Water droplets

• Large dust particles

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

• By being made of metal

• By inflating as air passes through

• By being rigid

• By being flat

What happens to the pressure resistance as filters become dirty?

• It fluctuates randomly

• It remains the same

• It decreases

• It increases

Why is it important to use energy-efficient filters in an AHU system?

• To decrease the air quality

• To make the system heavier

• To reduce energy consumption

• To increase the noise level

What is a potential consequence of excessive dust buildup on AHU components?

• Reduced energy efficiency

• Improved air quality

• Decreased system weight

• Increased system lifespan