Retrotec Blower Door - Manual (Page 27)

Page 27 of 87
©Retrotec Inc. 2015
A Hi-Pressure Cloth Door Panel is required if testing is expected to exceed 150 Pa (rated for tests at pressures up to
300 Pa). The Hi-Pressure cloth includes additional security straps to hold the fan in place. Adding an additional
crossbar is also recommended for high-pressure tests.
Two fans can also be mounted in a single aluminum frame with the addition of a second crossbar and a Double Fan
Cloth Door Panel.
A Low-Flow Fan Cloth Door Panel is used to test tight enclosures with a Model 200 fan.
3.1.1. Using the Aluminum Frame
The Retrotec Aluminum Frame is quick and easy to assemble. The ends of each piece are numbered; match the
numbers to connect each piece build the frame.
The frame consists of the following parts:
1 - #2/3 right side piece
1 - #1/4 left side piece
1 - #1/2 top end piece
1 - #3/4 bottom end piece
1 - #5 Lower crossbar with fan strap
Each piece has a black rubber knob which, when loosened, permits
the piece to be adjusted in length. The white plastic, tightening Cam
Lever expands the frame a small amount, to provide a tight fit when
in the doorway.
To assemble the Aluminum Frame
1. Attach the frame pieces so that the matching numbers are
aligned. The small metal button may need to be depressed
slightly to slide the pieces in. The button should pop back
out into the matching hole when the frame pieces are
correctly aligned.
2. Flip all of the white cam levers to the off position (flat
against the channel).
3. Install the #5 Lower crossbar into the side pieces at the
location stamped “5”.
4. Place the frame in a doorjamb, with the black rubber knobs
exposed. Loosen the black knobs to allow height
adjustment of the frame, and raise the top of the frame
(while holding the lower part down with a foot) until it is in
contact with the upper inside of the jamb. Tighten both side
knobs.
5. Loosen all the horizontal adjustment knobs (on the top and bottom and crossbar frame pieces) and adjust
frame width until it is in contact all along both sides of the doorjamb. Now tighten the horizontal knobs.
6. Remove the frame from the doorway.
Figure 19: Aluminum Frame for the cloth fan door panel.