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Looking for a larger blower door system to handle light commercial applications and large or very leaky homes? The Q4E is an excellent solution. An exclusive Retrotec product, The Q4E is a flagship of the product line offering specifications and features that no other product can offer in its class or price range.
Cloth Panel Systems : Q4E Automated Blower Door
Retrotec Model Q4E Ships with a DM-2A (digital manometer with extra hoses in briefcase), a model 3300, 2.0 HP Fan plus hard case for fan, and an aluminum frame with cloth door panel (in separate case).
DM-2A measures and controls pressure and air-flow automatically. Air change rate, ELA or air-flow per unit area results without a computer!
3300 Fan has a variable frequency drive that runs on both 110 and 240 Volts. On 50 Hz other fans slow down to 4000 + cfm while this fan still puts out 8000 cfm! Built-in computer controls pressure or flow.
| Fan Flow (accuracy +/- 5%, +/- 3% with Auto-Correct in Retrotec software) | CFM | Liters/s | m3/h |
| Maximum Flow in Free Air | 8,100 | 3,823 | 13,762 |
| Maximum Flow at 50 Pascal test pressure | 8,000 | 3,776 | 13,592 |
| At 50 Hz, NO power is lost due to variable frequency drive | 8,000 | 3,776 | 13,592 |
| Maximum Flow at 300 Pascal test pressure | 4,000 | 1,888 | 6,796 |
| Minimum Flow on Range Configuration C1 at 10 Pa | 38 | 18 | 65 |
| Dimensions | inches | cm | inches | cm |
| Fan height | 26 | 66 | Fan | Depth | 9.5 | 24.1 |
| Fan Inlet diameter | 22 | 56 | Panel height | 76.5 to 87 | 194 to 221 |
| Panel Case (included) | 31 30 x 7 | 77 76 18 | Panel width | 28.5 to 41.5 | 72.4 to 105.4 |
| Fan weight | 37lb. | 16.8 kg. | Fan Motor | 2.0 hp, 16 amps at 120 V
9 amps at 240 Volts |
| Panel weight | 21.5 lb. |
Calibration meets: Canadian CGSB-149.1-2002 & SuperE, USA ASTM E 779 03, European EN 13829 & CEN, UK TM-23 Energy Standards, Rain Penetration Standards. NFPA 2001- 01, ISO 14520 and UBC-905 fire standards.
