Issue:
General principles and guidelines on air intakes and outlets
Product line:
All Air removal equipment
Environment:
All Product models, all serial numbers
Cause:
Pressure issues that can occur from improper balance
Resolution:
Air Intakes and Outlets
Ventilation systems - air intakes and outlets and rules of thumbs
Intakes
- Intakes should be at least 0.15 m (0.5 ft) above the terrain. In areas with traffic the intake should be at least 5 m (16 ft) above the terrain.
- The distance between intake, firewalls, and surrounding buildings must be according the rules of the local authorities.
- Short cutting intake air with used outlet air must be avoided.
- An air intake should be located in a position where the wind influence on the pressure conditions within the system is limited.
- Air velocities in the intake openings should not exceed 2.5 m/s (~ 500 ft/min)
Outlets
- Outlets should go direct out in unrestricted area.
- Short cuts with intake air, window openings and residence areas must be avoided.
- The distance between outlet, firewalls and surrounding buildings must be according the rules of the local authorities.
- An air outlet should be located in a position where the wind influence on the pressure conditions within the system is limited.
- The air velocity through the outlet should not exceed 3 - 15 m/s (~ 500 - 3000 ft/min).
Đã phát hành cho: Schneider Electric Việt Nam
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