Lennox ZGB Series Unit Information page 20

BLO WER DATA
CEILING DIFFUSERS AIR RESISTANCE (in. w.g.)
RTD9-65S Step–Down Diffuser
Air Volume
2 Ends
cfm
Open
800 0.15
1000 0.19
1200 0.25
1400 0.33
1600 0.43
1800 0.56
2000 0.73
2200 0.95
2400 - - -
2600 - - -
2800 - - -
3000 - - -
3200 - - -
3400 - - -
3600 - - -
CEILING DIFFUSER AIR THROW DATA
Air Volume - cfm
Model No.
800
1000
1200
1400
1600
1800
2000
2200
Effective throw based on terminal velocities of 75 ft. per minute.
1
1 Side & All Ends &
2 Ends Open Sides Open
0.13 0.11
0.16 0.14
0.20 0.17
0.26 0.20
0.32 0.20
0.40 0.30
0.50 0.36
0.63 0.44
- - - - - - -
- - - - - - -
- - - - - - -
- - - - - - -
- - - - - - -
- - - - - - -
- - - - - - -
Effective Throw - ft.
1
RTD9-65S FD9-65S
10 - 17 14 - 18
10 - 17 15 - 20
11 - 18 16 - 22
12 - 19 17 - 24
12 - 20 18 - 25
13 - 21 20 - 28
14 - 23 21 - 29
16 - 25 22 - 30
RTD11-95S Step–Down Diffuser
FD9-65S
Flush
2 Ends
Diffuser
Open
0.11 - - -
0.14 - - -
0.17 - - -
0.20 - - -
0.24 - - -
0.30 0.13
0.36 0.15
0.44 0.18
- - - 0.21
- - - 0.24
- - - 0.27
- - - 0.32
- - - 0.41
- - - 0.50
- - - 0.61
Air Volume - cfm
Model No.
2600
2800
3000
3200
3400
3600
Page 20
1 Side & All Ends &
2 Ends Open Sides Open
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
0.11 0.09
0.13 0.11
0.15 0.12
0.18 0.15
0.21 0.18
0.24 0.21
0.29 0.25
0.37 0.32
0.45 0.39
0.54 0.48
Effective Throw - ft.
1
RTD11-95S
24 - 29
25 - 30
27 - 33
28 - 35
30 - 37
25 - 33
FD11-95S
Flush
Diffuser
- - -
- - -
- - -
- - -
- - -
0.09
0.10
0.12
0.14
0.17
0.20
0.25
0.31
0.37
0.44
FD11-95S
19 - 24
20 - 28
21 - 29
22 - 29
22 - 30
22 - 24