HVAC System Components and Functions

The video tutorial explains the HVAC system, its components, and how it functions to maintain comfortable living conditions. It covers the roles of heating, ventilation, and air conditioning, the workings of the air handling unit, and the use of makeup air and recirculation units for larger spaces. The chiller system's role in producing chilled water is also detailed.

What does the 'V' in HVAC stand for?

• Volume

• Ventilation

• Vacuum

• Velocity

Which component is considered the heart of an HVAC system?

• Condenser

• Compressor

• Air Handling Unit

• Chiller

What is the primary function of air dampers in an AHU?

• To heat the air

• To cool the air

• To control or limit airflow

• To filter the air

What is the main disadvantage of an AHU in large spaces?

• It is too noisy

• It cannot filter air effectively

• It cannot provide better results in large areas

• It consumes too much energy

What does an MAU primarily do?

• Cools the air

• Recirculates air

• Filters and delivers fresh air

• Heats the air

How does an RCU maintain chillness inside a space?

• By heating the air

• By increasing humidity

• By introducing fresh air

• By recirculating available air

What is the role of a chiller in an HVAC system?

• To filter the air

• To heat the air

• To produce chilled water

• To control humidity

Which component in a chiller reduces the pressure of the refrigerant?

• Compressor

• Condenser

• Expansion valve

• Evaporator

In a water-cooled chiller, what is used to cool the refrigerant?

• Liquid nitrogen

• Ice

• Cooling water from a cooling tower

• Atmospheric air

What is the final step in the chiller cycle?

• Compressing the refrigerant

• Cooling the refrigerant

• Heating the refrigerant

• Pumping chilled water back to the AHU