Detail on installing flap into the Duct Connector - 6” would be helpful.
1) If my roof cap has a built-in damper, do I need the flap in the Duct Connector?
2) Assuming that I do need the flap, then more help in installing the flap would be nice. Here is where I am confused:
Looking through the 6 inch round connector as it goes into the rectangular shape to attach to the fan, the top of the rectangle has a "foam strip" glued to it. If I insert the flap with its top in front of the foam, then the flap will be restricted from fully opening, but the flap will close completely (see picture "flap top in front ..."). If I insert the flap with its top behind the foam, then the flap won't close, but can open fully (see picture "flap top behind..."). Please let me know which is the correct installation.
It seems to me that the "foam strip" should be positioned more towards the front, so that the top of the flap can be behind it, which would allow the flap to both fully open and close.
There are no details given on this part of the installation. I feel that this is important information, because the tabs on the flap seem weak and will only tolerate so many attempts at installing it correctly. Also, I believe that I have the orientation of both parts correct, but it would be nice to have confirmation.
The question is great and the photos are helpful. I am having the same issue and need some clarity.
Unfortunately, I am not sure if the answer given by the manufacturer was foam in front or foam behind as you describe it. The bending answer they gave was confusing because I don't want a restriction but it would be nice to have a nice seal in the winter.
Can you guys answer in the context that the question was asked? Flap top in front of the foam or flap top behind the foam???
Date published: 2014-09-05
How do I fix this? It seems like it is a known issue with this fan.
Thank you for your question on the Broan QT140E. Please contact Technical Support directly at 800-637-1453 and they will get this issue resolved for you.
Date published: 2018-02-19
Can a dimmer sw. be used to vary the speed of the fan?
I would like to control the circulation of the air in a room then vent thru attic, will this motor & circuitry support a dimmer sw. or other type of variable speed control?
Thank you for your question on the QT140E ventilation fan. Yes, you can use a variable speed control with this unit. The 57W is compatible with this model. Please contact our Technical Support directly should have more questions at 800-637-1453.
Date published: 2017-04-03