Exhaust Fan
• Dynamically balanced blades for even load on bearings, thereby, extending the fan life.
• Polyurethane coating enables the fans to resist corrosion against chemically charged atmosphere and saturated humid conditions.
• Conforms to IS specification 2312-1967.
Note: Rated voltage 230 V 50 c/s. AC for single phase fans * Suitable Relay starter having single phase protection device to be used to avoid burning of motor
· Subject to tolerances as laid in IS 2312/1967 (Revised)
VENTILATION REQUIREMENT
Ventilation systems are designed considering the following factors:
Volume of the area where the ventilation is required.
Number of occupants and the type of their activities.
Heat gained by solar radiation and by any equipment used In the place where ventilation Is required.
Relative Humidity.
The range and level of outside temperature.
The required number of "Air Changes'.
The replacement of contaminated and stale air by fresh air is termed as 'Air Change'. The recommended number of Air Changes per hour for Banks / Vault Rooms is 6-10
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