HAVC SYSTEM

1. HVAC System
CECOS University, Peshawar
Inam ullah

2. What is HVAC System??
CECOS University, Peshawar. 2
HVAC
System
H- Heating
V- Ventilation
AC – Air Conditioning

3.  Control of Air Temperature.
 Control of Moisture Content in Air (Humidity).
 Proper Air Movement (Circulation).
 Air Filtration
 Economy
Significance of HVAC System
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CECOS University, Peshawar.
To Hold the Air Contamination Within Acceptable limits.

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Components….
CECOS University, Peshawar.

5.  Source Components
 Distribution Components
 Delivery Components
Components of HVAC System:
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CECOS University, Peshawar.

7.  Source components provide or remove heat or moisture from
building zone.
Heating Source (Boiler) :
 Combustion of some flammable material (a fuel)
 Conversion of Electrical energy to heat
 Solar radiation or other renewable energy resources
Cooling Source (Chiller):
 Natural Heat Sinks (Outside air, on-site water bodies etc)
 Artificial Heat Sinks (Vapor compression (mechanical) refrigeration, ,
absorption (chemical) refrigeration, evaporative cooling)
Source Components:
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8. • Natural Heat Sink
Components of HVAC System:
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9. • Artificial Heat Sink:
Components of HVAC System:
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10.  Heating or cooling effect produced are transmitted to the various
spaces in a building by distribution components.
1) Air Handler Unit (AHU ): It transfer heat and cold air (or at least fresh air)
into different building zones.
2) System of Ducts
3) Dampers: Dampers are used to control the amount of air flow in a duct.
Distribution Component:
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11.  Diffusers
 Grilles
 Registers (A grille equipped with a
damper)
Delivery Component:
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Types….
CECOS University, Peshawar.

13. Roof Mounted Package System
 Most common
 Entire HVAC system is located on
building roof
CECOS University, Peshawar.

14. Split System
 HVAC system split into 2 pieces
 Condensing unit located on roof.
 Air handler located in space above ceiling.

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CECOS University, Peshawar.