Specifications

24
RECTANGULAR DAMPER SELECTION
Rectangular Damper Capacities*
WIDTH IN INCHES
8
10
12
14
16
18
20
22
24
26
28
30
32
HEIGHT IN INCHES
8
300
400
500
610
710
820
925
1050
1175
1250
1400
1500
1600
10
400
540
680
825
975
1125
1300
1400
1590
1750
1975
2100
2175
12
500
680
850
1000
1200
1400
1600
1850
2000
2300
2550
2700
2850
14
610
825
1000
1250
1500
1750
2000
2250
2500
2900
3150
3425
3625
16
710
975
1200
1500
1800
2100
2450
2700
3000
3600
3950
4200
4425
18
820
1125
1400
1750
2100
2500
2850
3080
3600
4400
4600
4950
5100
20
925
1300
1600
2000
2450
2850
3400
3775
4000
4800
5500
5700
6000
22
1050
1400
1850
2250
2700
3080
3775
4300
4800
5100
6000
6350
6800
24
1175
1590
2000
2500
3000
3600
4000
4800
5400
6100
7000
7150
7600
26
1250
1750
2300
2900
3600
4400
4800
5100
6100
6700
7800
8400
8900
28
1400
1975
2550
3150
3950
4600
5500
6000
7000
7800
8400
9150
10000
30
1500
2100
2700
3425
4200
4950
5700
6350
7150
8400
9150
10000
11000
32
1600
2175
2850
3625
4425
5100
6000
6800
7600
8900
10000
11000
11250
* These air quantities were derived from duct sizing chart .1" friction loss per 100' of duct.
All CFMs listed are approximate.
For accurate selection use duct sizing table or device.
D-FUSER ZONE DAMPER
Zonex Systems D-Fuser is a combination zone damper and diffuser. It mounts in a standard 2’ x 2’ T-bar
ceiling opening, providing for simple installation and easy maintenance access. The D-Fuser is a cone
shaped fluidic nozzle with a platen that modulates up and down to control air flow. As the platen moves up,
the air volume is reduced; but the air velocity and throw remain constant. This keeps the air hugging the
ceiling, which maximizes room air mixing and minimizes the “waterfall” effect. The D-Fuser is a fully
modulating power open / power close damper using a 24vac 60Hz 2 VA motor. Motor drive time from full
open to full close is 90 seconds. The D-Fuser connects to round duct either on the side or top. Collars are
available for 6”, 7”, 8”, 9” and 10” duct.
6”
Neck Vel
∆P
CFM
Throw 50 FPM
400
500
600
700
800
900
0.011
0.016
0.023
0.035
0.04
0.055
80
98
120
135
157
176
4’
4’
5’
6’
6’
7’
8”
Neck Vel
∆P
CFM
Throw 50 PM
400
500
600
700
800
900
0.019
0.03
0.045
0.056
0.041
0.093
140
170
207
247
280
315
5’
6’
7’
8’
9’
10’
10”
Neck Vel
∆P
CFM
Throw 50 FPM
400
500
600
700
800
900
0.029
0.045
0.066
0.09
0.12
0.146
218
273
330
382
438
497
6’
8’
9’
10’
11’
12’
24”
2”
12”
COLLAR:
PLACE ON SIDE
PLACE ON TOP
12”
AT NECK VELOCITIES UP TO 700 FPM
NC LESS THAN 30