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BLOWER DATA
CEILING DIFFUSERS AIR RESISTANCE (in. w.g.)
Air Volume
cfm
RTD9-65S Step-Down Diffuser
FD9-65S
Flush
Diffuser
RTD11-95S Step-Down Diffuser
FD11-95S
Flush
Diffuser
2 Ends
Open
1 Side &
2 Ends Open
All Ends &
Sides Open
2 Ends
Open
1 Side &
2 Ends Open
All Ends &
Sides Open
800 0.15 0.13 0.11 0.11 - - - - - - - - - - - -
1000 0.19 0.16 0.14 0.14 - - - - - - - - - - - -
1200 0.25 0.20 0.17 0.17 - - - - - - - - - - - -
1400 0.33 0.26 0.20 0.20 - - - - - - - - - - - -
1600 0.43 0.32 0.20 0.24 - - - - - - - - - - - -
1800 0.56 0.40 0.30 0.30 0.13 0.11 0.09 0.09
2000 0.73 0.50 0.36 0.36 0.15 0.13 0.11 0.10
2200 0.95 0.63 0.44 0.44 0.18 0.15 0.12 0.12
2400 - - - - - - - - - - - - - 0.21 0.18 0.15 0.14
2600 - - - - - - - - - - - - - 0.24 0.21 0.18 0.17
2800 - - - - - - - - - - - - - 0.27 0.24 0.21 0.20
3000 - - - - - - -
- - - - - - 0.32 0.29 0.25 0.25
CEILING DIFFUSER AIR THROW DATA
Air Volume - cfm
1
Effective Throw - ft.
Model No. RTD9-65S FD9-65S
800 10 - 17 14 - 18
1000 10 - 17 15 - 20
1200 11 - 18 16 - 22
1400 12 - 19 17 - 24
1600 12 - 20 18 - 25
1800 13 - 21 20 - 28
2000 14 - 23 21 - 29
2200 16 - 25 22 - 30
Model No. RTD11-95S FD11-95S
2600 24 - 29 19 - 24
2800 25 - 30 20 - 28
3000 27 - 33 21 - 29
1
Effective throw based on terminal velocities of 75 ft. per minute.