Design Conditions for Air Conditioning

Conditions to be maintained:

  • For TE Buildings: 

    Temperature below the rack (wherever bottom feed is stipulated):20±2 °C DB
    Switch room temperature:23±3 °C DB
    Switch room RH45±15 %
    Fresh Air Requirement:(adjustable to ½ air change per hour)
    Air Filtration:Two stage filtration
    Pre-filters - η ≥ 90 % down to 20 microns
    Fine filters η ≥ 95 % down to 5 microns
  • For Comfort Cooling: 

    Temperature:21 - 24 °C
    Humidity:30 - 35 % (winter)
    40 - 50 % (summer)
Recommended Inside Design Conditions
Type of ApplicationSummer Temperature °FRH %Winter Temperature °FRH %
1. General Comfort (Houses, Hotels, Hospitals, Offices, Schools)74 - 7645 - 5074 - 7630 - 35
2. Shops, Banks, (Short Time Occupancy) Departmental Stores.76 - 7845 - 5072 - 7430 - 35
3. Low Sensible Heat Application (High Latent Heat Load) Auditorium, Restaurant, Kitchen.76-7850-5572-7435-40
4. Factories (Assembly Areas, Machine Shops)77-8054-5068-7230-35
5. Electronic Exchanges68-7240-6068-7240-60
6. Other Exchanges72-8045-6064-7245-60

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