QC STL PRO-3.3X
QuietCool Stealth Pro Line
QC STL PRO-3.3X Specifications
| Motor Voltage | 120 VAC, 60 Hz |
| Energy Use | Hi: 264 Watts / Low: 74.6 Watts |
| Air Flow | Hi: 3159 CFM / Low: 1980 CFM |
| HVI-916 Airflow (for CA Title 24 New Construction) | 2350 CFM |
| dBA | Hi: 47.4 / Low: 36.1 |
| Recommended SQFT Coverage @ 2-3 CFM per SQFT | Covers 1053 SQFT to 1580 SQFT |
| Minimum Attic Clearance | 34” |
| # of Speeds | 2 |
| Duct Diameter | 16” |
| Duct Length | 6 feet |
| Motor Head Diameter | 16 1/2” |
| Motor Head Length | 13 1/2” |
| Dampers | Barometric Pressurized R5 Dampers |
| Controls | Included: 8 Hr Electronic Timer & HI-LOW-OFF 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 | 4.22 SQ FT net free area |
| Ceiling Rough Opening | 14 1/4” x 22 1/4” |
| Removable Grille Outside Dimension | 16” x 24” |
| Shipping Weight | 55 lbs. |
| Box Dimensions | 27” x 20” x 38” |
| In The Box | -QC STL PRO-3.3X Motorhead -Removable Grille -Cut-out Template -Window Locks -Damper Box -6 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%.
