2. AIR CONDITIONING
• It is the branch of engineering science which
deals with the study of supply and maintaining
desired internal atmospheric condition
irrespective of external conditions
• Simultaneous control of temperature,
humidity, purity and motion of air
3. CLASSIFICATION OF A/C SYSTEMS
• According to season of the year
o Winter A/C systems
o Summer
o Year round
• According to the arrangement of machine
o Unitary
o Central
• According to the purpose
o Comfort
o Industrial