Front view (FF and FS)
29-1/4"
(Slope top unit)
A
26-1/2"
C
3/8" mounting holes
(4 places)
Damper opening
1-7/8"
7"
11-15/16"
D
3/8"
Motorized damper
Manual damper
Motor end
Front view (FFH)
23-15/16"
1-7/8"
Damper opening
D
B
3/8"
Dimensions and data
Damper Models FF, FS and FFH
Dimensional data
Unit size
A
B
C
D
02
38-3/16
22-3/8
24
18-5/8
03
44-3/16
28-3/8
30
18-5/8
04
50-3/16
34-3/8
36
23-5/8
06
62-3/16
46-3/8
48
23-5/8
08
68-3/16
52-3/8
54
33-5/8
10
76-3/16
60-3/8
62
33-5/8
12
86-3/16
70-3/8
72
33-5/8
Notes:
Damper motor always on right side when viewing unit
from front side.
All listed dimensions are approximate and are subject
to change without notice. Modifications to the product
specifications must be accepted by Zehnder Rittling at
its base office.
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