![background image](http://html1.mh-extra.com/html/mandik/fdma/fdma_manual_4014682029.webp)
28
The control mechanism has to be protected (covered) against damage and pollution during
installation process.
All fire dampers has to be closed during installation process. The damper body should not be
deformed in the course of bricking in. Once the damper is built in, its blade should not grind on
the damper body during opening or closing.
Installation opening dimensions
* The recommended dimension of the installation opening is from 25 mm to 50 mm on the both sides (it means
from A+50 to A+100 or B+50 to B+100)
** The recommended dimension of the installation opening is from 40 mm to 80 mm on the both sides (it means
from D+80 to D+160)
40÷80
30
0
D + 160**
D
+
1
60
**
40÷80
D
+
1
60
**
30
0
A + 100*
25÷50
A
B
B
+
1
00
*
26
0
26
0
25÷50
A
A + 100*
26
0
B
B
+
1
00
*
37
5
23
2
Built in edge for
installation in construction
Built in edge isolation
for installation outside
construction
50
47
5
28
2
50
Built in edge for
installation in construction
Built in edge isolation
for installation outside
construction
BUILT IN EDGE
BUILT IN EDGE
Summary of Contents for FDMA
Page 1: ......