4 Installing the BlowerDoor Measurement System
BlowerDoor Standard
January 2022
35
Fig. 4.4
The clamping levers (1) must be open before the
adjustment knobs (2) are used.
Fig. 4.5
Once the four external braces have been assembled, adjust the
frame to loosely fit the dimensions of the door frame (leave about
a finger’s width on all sides).
Slide the frame into the door opening.
Re-adjust the frame height and width to the door opening by
loosening the knobs on the braces and extending the frame pieces.
After the braces have been adjusted, retighten the knobs.
To leave enough space for installing the panel, do not fully adjust
the f
rame to the door opening. Leave about one finger’s width of
space.
2
1
