1.3. By Equipment Arrangement

Try these first

1. 1.

   What are unitary systems designed for?

   Hint

   Think about where small ACs are often used.

2. 2.

   What is the main function of central systems?

   Hint

   Consider larger buildings or commercial spaces.

3. 3.

   What distinguishes unitary systems from central systems?

   • Unitary systems are larger
   • Central systems require ducts
   • Unitary systems are used for multi-room control

   Hint

   Consider the distribution method of air.

4. 4.

   True or False: Unitary systems use ductwork for air distribution.

   • True
   • False

   Hint

   Think about their installation.

5. 5.

   Design an HVAC layout for a 20,000 square foot commercial building needing cooling and heating. Justify the choice between a unitary or central system and explain your reasoning.

   Hint

   Consider the operational efficiency and duct size.

6. 6.

   Calculate the energy consumption of operating ten unitary systems versus one central system in the same environment over a year, considering maintenance factors as well.

   Hint

   Analyze how many units you're dealing with.