Lecture 3

What are the different systems available for air conditioning?

• Ducted

• Non Ducted

• Induction

• Fan coil units

• Induction Diffusor

What are the two broad categories of air conditioning systems based on their working phenomenon?

• Direct expansion systems (DX systems)

• Chilled Water (Indirect) Systems

What is a room air conditioner designed for?

• Mounting on a window

• Cooling without ducts

• Delivering conditioned air

• All of the above

What are the types of packaged air conditioning systems?

• Self-contained (single) package

• Split (double) package

• Split (Multi) package

What is the function of the main filter in an air conditioning system?

• To purify the air

• To protect components from large particles

• To de-odour the air

• To cool the refrigerant

What is the purpose of a central direct expansion plant system?

• To maintain a consistent indoor climate

• To cool the refrigerant

• To distribute air throughout the building

• All of the above

What is a characteristic of Variable Refrigerant Flow (VRF) systems?

• Uses refrigerant to transfer heat

• Can provide simultaneous heating and cooling

• Each indoor unit can independently control temperature

• All of the above

What is the role of chilled water in an indirect expansion system?

• To absorb heat from the air

• To cool the refrigerant

• To filter the air

• To distribute conditioned air

What are the two types of systems in common use for air handling?

• Using air for heating and cooling

• Using water and air

What are the main components of a fixed air volume system?

• Compressor, Condenser, Chillers, Air handling unit, Cooling tower, Pumps, Ducting

• Only a fan and filter

• Just a cooling coil