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Products * Blower Door Systems * Model Q4E Register Login
Q4E Door Fan System

Like the Q46, the Q4E system comes with a highly portable and lightweight cloth frame that is adaptable to a wide range of door sizes.  However, this system implements the stronger, 2 hp 3300 Series Calibrated Fan, capable of up to 8100 CFM, making it applicable in tests of larger residential and mid-sized commercial structures. 

Control this system directly via the DM-2 Series 2 Channel Digital Pressure Gauge, or Download the Software to connect the DM-2 to your laptop and run your test automatically.

Click on the images below for a closer look! (Scroll down for Specifications)
All Retrotec fans are made with extremely durable space-age hard plastic foam, which makes them both lightweight and tough. They are also easily reversible: to switch from pressurizing to depressurizing your enclosure, simply flip the fan around in its panel.

The DM-2 that comes with this system offers an onboard "Set-and-Forget" control of enclosure pressure and flow pressure.  All you need to do is choose your desired pressure, and then let the DM-2 do the rest.  As you seal the leaks in your enclosure and the leakage rate decreases, the system automatically and instantly readjusts to the correct pressure.

Q4E Package Includes:

Q4E Product Specifications:

Fan Flow
(Accuracy +/- 5%, or +/- 3% with Retrotec Software)

  CFM
 Liters/s
 		 m3/h
Maximum Flow in Free Air
 		 8100  3623  13,762
Maximum Flow at 50 Pascal test pressure
 		 8000  3776  13,592
(At At 50 Hz, NO power is lost due to variable frequency drive)


 
Maximum Flow at 300 Pascal test pressure
 4000
 1888
 6796
Minimum Flow on Range Configuration C1 at 10 Pa
 38  18  65
       
Dimensions Inches Cm  
Fan Height
 		26 66  
Fan Inlet Diameter
 		22 56  
Fan Depth
 		9.5 24.1  
Panel Case (Included)
 		31 x 30 x 7
 		77 x 76 x 18
 		 
Frame Height
 		51.5 to 95 131 to 241  
Frame Width 29.5 to 41.5
 		72.5 to 105.4
 		 
       
Fan Motor
 		2.0 hp 16 amps
at 120 Volts
 		9 amps
at 240 Volts
Fan Weight
 		37 lbs
 		16.8 kg
 		 
Panel weight
 		14.2 lbs
 		6.4 kg
 
Product ID: DFQ4E  

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