[Er.Pankaj Garg]

Design consideration
As per clause 4.2.1 of NBC 2016 part 8 section 3 following factors shall take into account in planning of HVAC system :

• Recommended indoor temperature, relative humidity, air velocity, mean radiant temperature, clothing and activity
  
• Outside design conditions
  
• Details of building construction and orientation of exposures of building components;
  
• Fenestration area and shading factors
  
• Occupancy – Number of people and their activity
  
• Ventilation – Requirement for fresh air
  
• Infiltration, air leakage
  
• Internal Load – Lighting and other heat generating sources like computers, equipment and machinery
  
• Effective volume
  
• Occupancy, lighting and equipment schedule
  

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