Brochure

Ceiling Diffusers - Steel
28
Ceiling Diffusers - Steel
20 Round Diffuser
•
Steel construction
•
For ceiling or exposed duct
installation
•
Five-step positioning of air
pattern adjustment
•
360-degree pattern,
horizontal to vertical
pattern change
•
Removable center core
•
Diffusers are equipped with
margins designed to minimize
smudging
•
Diffuser outer shell fastens directly
to duct or to optional #18 duct ring;
margins fit tight to ceiling for
optimum ceiling appearance
•
Optional #19 damper; duct-mount
only
•
Bright White finish
18 Duct Ring
•
Steel construction
•
Attaches to diffuser via
screws into face by
removing core
•
Bright White finish
•
Use with #20 diffuser
Listed
Size
Ceiling
Opening
Diameter
Overall
Diameter
CDE
611
12
5
/
8
3
/
8
1
3
/
8
1
3
/
4
8
14
3
/
4
17
1
/
2
1
13
/
16
2
5
/
16
10
18
3
/
8
21
5
/
8
2
3
/
16
2
15
/
16
12
21
15
/
16
25
1
/
4
5
/
8
2
9
/
16
3
1
/
2
14
25
1
/
2
28
1
/
2
11
/
16
2
7
/
8
4
1
/
4
16
29
1
/
8
33
7
/
8
7
/
8
3
3
/
8
4
3
/
4
18
32
3
/
4
37
1
/
2
1
1
/
16
4
3
/
16
5
3
/
8
20 Available Sizes (in.)
6 8 10 12 14 16 18
18 Available Sizes (in.)
Engineering Data on Page 86
19 Damper
•
Steel construction
•
Opposed-blade
damper
•
Bright White finish
•
Duct-mount only
Note: 3/16" Hex Damper handle
(by others) will lock into position
if inserted too far into damper
Damper 6 8 10 12 14 15 16 18
S
5
15
/
16
7
15
/
16
9
15
/
16
11
15
/
16
13
15
/
16
14
15
/
16
15
15
/
16
17
15
/
16
P 3
3
1
/
2
4
9
/
16
4
9
/
16
4
9
/
16
4
9
/
16
4
9
/
16
4
9
/
16
19 Damper Listed Sizes (in.)