Ventilating Fan Selector

VENTILATING FAN SELECTOR CEILING FAN

This program is to help you to select applicable KDK ventilating fan based on your residential need.

For users who are looking for ceiling mount – ducting type ventilating fan, please be aware that the value of air volume indicated is measured at 0 Pa.

May you need further info, please contact us or your ventilation specialist.

Note: 1 meter = 3.28 ft

HOW TO CALCULATE THE TYPE AND NUMBER OF VENTILATING FAN REQUIRED?

EXAMPLE 1

1. Determine Room Size( Ft³) (A)

= 8.5 x 26 x 23
= 5083 ft³

2. Determine the necessary frequency of ventilation (B)

PLACE A B
Home Kitchen 15
Parlour 6
Living Room 6

3. Determine Air Flow Required(CFM)

= (A) x B / 60
= 5083 x 6 / 60
= 508.3 CFM(Ft³/Min)

4. Identify suitable model for application

Refering to our catalog, 25AQM3 Air volume = 530 CFM

Therefore, Recommendation is 1 SET OF 25AQM8

EXAMPLE 2

1. Determine Room Size( Ft³) (A)

= 13 x 26 x 46
= 15,548 ft³

2. Determine the necessary frequency of ventilation (B)

PLACE A B
Factory Painting Room 20
Dynamo Room 20
Condenser Room 15

3. Determine Air Flow Required(CFM)

= (A) x B / 60
= 15,548 x 20 /60
= 5182.7 CFM(Ft³/Min)

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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