Tips & Guide
 
  Ceiling Fans
Good Installation Practice
Installation Guide 
Causes of Fan Wobbling and How to Improve
 
Wall Fans
Type of Bearing (Circulation Lubrication)
Type of Bearing (Ball Bearing)
Why Wall Fan Needs Ball Bearing?
Advantages of Ball Bearing
 
  Ventilating Fans
What is Ventilation ?
How To Calculate the Type and Number of Ventilating Fan required?
Ventilating Schedule
Installation Guide
   
   
Ventilating Fans :
How To Calculate the Type and Number of Ventilating Fan required?
 
Example 1
STEP 1 : DETERMINE ROOM SIZE ( Ft3)
= 8.5 x 26 x 23
=5083 Ft3 ---------------------------------- (A)

STEP 2 :
DETERMINE THE NECESSARY FREQUENCY OF VENTILATION ------- (B)
Place A B
HOME KITCHEN 15
PARLOUR 6
LIVING ROOM 6
Click for more details

STEP 3 :
DETERMINE AIR FLOW REQUIRED(CFM)
= (A) x (B) / 60
= 5083 x 6 / 60
= 508.3 CFM(Ft3/Min)
 
STEP 4 :
IDENTIFY SUITABLE MODEL FOR APPLICATION

REFERING TO OUR CATALOG, 25AQM3 AIR VOLUME= 530 CFM

THEREFORE, RECOMMENDATION IS 1 SET OF 25AQM3
Example 2
STEP 1 : DETERMINE ROOM SIZE (Ft3)
= 13 x 26 x 46
= 15,548 Ft3---------------------------------- (A)
 
STEP 2 :
DETERMINE THE NECESSARY FREQUENCY OF VENTILATION ------- (B)
Place A B
FACTORY PAINTING ROOM 20
DYNAMO ROOM 20
CONDENSER ROOM 15
Click for more details

STEP 3 :
DETERMINE AIR FLOW REQUIRED (CFM)
= (A) x (B) / 60
= 15,548 x 20 /60
= 5182.7 CFM (Ft3/Min)
 
STEP 4 :
IDENTIFY SUITABLE MODEL FOR APPLICATION
 

REFERING TO OUR CATALOG, 35GSC AIR VOLUME
= 1580 CFM

NUMBER OF VENTILATING FANS REQUIRED
= Total Air Flow Required /Air Volume of 35GSC
= 5182.7/1580
= 3.28

THEREFORE, RECOMMENDATION IS 4 SETS OF 35GSC
 
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