Operating Guide

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Whole House Fans
Whole House Fans
Master Flow
®
Whole House
Fans are smart energy savers for
any climate where cooling costs
are a concern. They help beat
the heat by forcing hot air out
of the home while bringing
in cooler outside air. Whole
house fans are an important
part of a complete home
ventilation system.
• Excellent Air Exchange (versus standard models)... For
maximum impact on cooling costs
• Quieter Operation... Belt drive isolates motor noise and vibration
• Efficient, Longest-Lasting Motor...
1
/
3
hp permanent split
capacitor design for added power and longer life
• Better Appearance... Includes super-quiet automatic white
ceiling shutters
• Convenient Operation... Includes two-speed wall switch
(rather than pull chain)
• Efficient...
1
/
4
hp permanent split capacitor design
• Convenient Operation... 2-speed pull chain switch controls
operation (no wiring through walls required)
• Better Appearance... Includes super-quiet automatic white
ceiling shutters
• Easy Installation... Easily installed on all standard joist centers,
no joist cutting needed
• Simple to Operate... 2-speed operation with included
remote control
• Great Looking... Virtually invisible in the ceiling
• Safe... Tested and approved by independent laboratories
Master Flow
®
Belt Drive
Deluxe Whole House Fan
30BWHFS (Belt Drive)
Master Flow
®
Direct Drive
Standard Whole House Fan
WHFS24M (Direct Drive)
Master Flow
®
Tandem
Whole House Fan
WHFTAN1
Accessories/Replacement
Parts For Whole House Fans
WHT36 Timer & BWS2 Switch
Master Flow
®
Belt Drive Deluxe Whole House Fan
Master Flow
®
Direct Drive Standard Whole House Fan
Master Flow
®
Tandem Whole House Fan
Accessories/Replacement Parts For Whole House Fan
PRODUCT SPECIFICATIONS
Drive
Type
Model
Number
Size HP CFM For Homes
Up T
o
(sq. ft.)
Ltd. W
arranty
Term/
Labor Protection
Plus Plan*
Belt 30BWHFS 30" 1/3 6000 3000
10 yrs./
5 yrs.
Drive
Type
Model
Number
Size HP CFM For Homes
Up T
o (sq.
ft.)
Ltd. Warranty
Term/
Labor Protection
Plus Plan*
Direct WHFS24M 24" 1/4 4500 2500
10 yrs./
5 yrs.
Drive
Type
Model
Number
Size HP CFM For Homes
Up To
(sq. ft.)
Ltd. Warranty
Term/
Labor Protection
Plus Plan*
Tandem WHFTAN1 16" x 24" 1/15 1600 2500
5 yrs./
2 yrs.
Model
Number
Description
S24 24" white shutter (Fits WHFS24M)
S30 30" white shutter (Fits 30BWHFS)
BWS2**
Two-speed fan control switch with cover plate
(included with all belt drive models)
WHT36** 12-hour timer
Note: Master Flow
®
Whole House Fans are designed for homes over 1,000 square feet.
Note: Always have a balanced attic ventilation system. The amount of exhaust ventilation should NEVER exceed the amount of
intake ventilation.
*See Master Flow
®
Powered Ventilation Products Ltd. Warranty for complete coverage and restrictions.
**Available only for belt-drive and direct-drive models.
Note: Not available in Canada