QC STL PRO-4.8X
QuietCool Stealth Pro Line

QC STL PRO-4.8X Specifications

Motor Voltage 120 VAC, 60 Hz
Energy Use Hi: 408 Watts / Med: 225 Watts / Low: 73.9 Watts
Air Flow Hi:4280 CFM / Med:3500 CFM / Low:2361 CFM
HVI-916 Airflow (for CA Title 24 New Construction) 3130 CFM
dBA Hi: 47.4 / Med: 43.2 / Low: 33.0
Recommended SQFT Coverage @ 2-3 CFM per SQFT Covers 1427 SQFT to 2140 SQFT
Minimum Attic Clearance 36”
# of Speeds 3
Duct Diameter 18”
Duct Length 9 feet
Motor Head Diameter 18 1/2”
Motor Head Length 13 1/2”
Dampers Barometric Pressurized R5 Dampers
Controls Included: 8 Hr Electronic Timer & Double 3-way switch
Optional: IT-36002 QuietCool RF Wireless Control Kit
Warranty 15 Years
Framing None Required
Joist Cutting None Required; fits 16” or 24” on center
Minimum Suggested Attic Venting 5.71 SQ FT net free area
Ceiling Rough Opening 14 1/4” x 30 1/4”
Removable Grille Outside Dimension 16” x 32”
Shipping Weight 75 lbs.
Box Dimensions 36” x 22” x 40”
In The Box -QC STL PRO-4.8X Motorhead
-Removable Grille
-Cut-out Template
-Window Locks
-Damper Box
-9 Foot Duct
-Accessory Bag
-Controls

Electronically Commutated AC/DC Brushless Motor

All QuietCool Stealth Pro Line fans include our ultra-high efficiency electronically commutated AC/DC brushless motors. Known as “ECM” motors, these motors offer ultra-high efficiency with very high CFM/Watt ratios. All Stealth Pro fans operate on low wattage and low amperage. These motors are so efficient that they can help homeowners slash their A/C related electricity costs by up to 50-90%.