SIZING
Need to choose 10/20 CFM mode when installing.
Ventilation Capacity Requirements
(CSA-F326)
10 CFM
Single Bedroom
Living room
Family room
20 CFM
Master Bedroom
Large Basement room
Spot Ventilation
Need to choose 20/40 CFM mode when installing.
ASHRAE 62.2 2007
1 Bedroom
2 Bedrooms
3 Bedrooms
20 CFM
500 sq ft.
N/A
N/A
40 CFM
2500 sq ft.
1750 sq ft.
1000 sq ft.
Whole House Ventilation (IAQ)
Sizing example 1 (based on ASHRAE 62.2):
TWO BEDROOMS at 1600 SQ. FT.
Master Bedroom (7.5 CFM x 2) = 15 CFM
Second Bedroom
=
7.5 CFM
1600 SQ. FT. x .01
=
16 CFM
_________________________________________________
Total
38.5 CFM
Use WhisperComfort set at 40 CFM
Sizing example 2 (based on ASHRAE 62.2):
FOUR BEDROOMS at 2200 SQ. FT.
Master Bedroom (7.5 CFM x 2)
= 15 CFM
Other 3 Bedrooms (7.5 CFM each) = 22.5 CFM
2200 SQ. FT. x .01
= 22 CFM
________________________________________________
Total
59.5 CFM
Use 2 WhisperComfort or 1 WhisperComfort and
1 WhisperGreen
®
*
* WhisperGreen
®
are Panasonic exhaust fans with variable speed DC motor and
built-in controls. Ideal for both bathroom intermittent ventilation and whole house
continuous run ventilation.
