Table 11 — Plenum Fan Physical Data, Standard Wheel
39T UNIT SIZE 11 13 17 21 26 32 39 49 61 74 92
WHEEL DIAMETER (in.) 18
1
⁄
4
20 22
1
⁄
4
27 30 30 36
1
⁄
2
40
1
⁄
4
44
1
⁄
2
49 60
MAX SPEED (rpm) 3122 2848 2560 2020 1818 1818 1473 1335 1208 1097 896
FAN SHEAVE BORE (in.) 1
7
⁄
16
1
7
⁄
16
1
7
⁄
16
1
11
⁄
16
1
11
⁄
16
1
11
⁄
16
2
3
⁄
16
2
7
⁄
16
2
7
⁄
16
2
15
⁄
16
3
3
⁄
16
FAN SHAFT WT (lb) 17 22 29 37 37 37 39 72 91 138 162
FAN WHEEL WIDTH (in.) 6.07 6.62 7.38 8.95 9.94 9.94 12.14 13.34 14.74 16.24 19.88
FAN WHEEL WT (lb) 38 46 60 101 123 123 184 241 341 484 750
NO. OF FAN BLADES 88888888888
MOTOR FRAME SIZE
Maximum 254T 256T 284T 286T 324T 324T 326T 364T 365T 405T 405T
Minimum 143T 143T 145T 145T 145T 145T 145T 145T 182T 213T 213T
MOTOR HP
Maximum 15 20 25 30 40 40 50 60 75 100 100
Minimum 22235557.5102020
NOTES:
1. Motor data applies to units with or without inlet guide vanes.
2. Data shown is for both 50 Hz and 60 Hz motors.
Table 12 — Plenum Fan Physical Data, Small Wheel
39T UNIT SIZE 21 26 32 39 49 61 74 92
WHEEL DIAMETER (in.) 24
1
⁄
2
27 27 33 36
1
⁄
2
40
1
⁄
4
44
1
⁄
2
54
1
⁄
4
MAX SPEED (rpm) 2325 2020 2020 1652 1473 1335 1208 991
FAN SHEAVE BORE (in.) 1
11
⁄
16
1
11
⁄
16
1
11
⁄
16
1
15
⁄
16
2
3
⁄
16
2
7
⁄
16
2
7
⁄
16
2
15
⁄
16
FAN SHAFT WT (lb) 30 37 37 37 39 72 91 148
FAN WHEEL WIDTH (in.) 8.12 8.95 8.95 10.93 12.14 13.34 14.74 17.98
FAN WHEEL WT (lb) 80 101 101 156 184 241 341 598
NO. OF FAN BLADES 88888888
MOTOR FRAME SIZE
Maximum 286T 324T 324T 326T 364T 365T 405T 405T
Minimum 145T 145T 145T 145T 145T 182T 213T 213T
MOTOR HP
Maximum 30 40 40 50 60 75 100 100
Minimum 35557.5102020
NOTES:
1. Motor data applies to units with or without inlet guide vanes.
2. Data shown is for both 50 Hz and 60 Hz motors.
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