TCF IM-995 - Page 24

IM-995
Installation, Operation & Maintenance Manual
24
Impeller Placement
HIB, RTF Impeller Overlap
Size A B Size A B
180 20.50 0.31 400 45.25 0.69
200 22.50 0.34 450 50.00 0.75
220 25.00 0.38 490 55.13 0.81
240 27.50 0.44 540 61.00 0.91
270 30.38 0.47 600 67.50 1.00
300 33.50 0.50 660 74.25 1.13
330 37.00 0.56 730 82.00 1.22
360 41.00 0.63 800 90.75 1.34
HRT Impeller Overlap
Size A
B
(Design 19)
B
(Design 23)
270 27.00 0.50 0.50
300 30.00 0.69 0.69
330 33.00 0.69 0.69
360 36.50 0.81 0.81
400 40.25 1.03 0.97
450 44.50 1.13 1.06
490 49.00 1.25 1.13
540 54.25 1.38 1.25
600 60.00 1.31 1.31
660 66.00 1.56 1.44
730 73.00 1.75 1.63
800 80.75 1.06 1.31
HAF Impeller Overlap
Size A B
220 25.00 0.50
240 27.50 0.55
270 30.38 0.61
300 33.50 0.67
330 37.00 0.74
360 41.00 0.75
400 45.25 0.83
450 50.00 0.91
490 55.13 1.01
540 61.00 1.12
600 67.50 1.23
660 74.25 1.36
730 82.00 1.50
800 90.75 1.66
Models BC-SW, BAF-SW, BAE-SW, BCS, HIB,
BAV, RTF, HRT, HAF, BCV, DCV, TCBI
BCV (Class L)
Impeller Overlap
Size B
090-105 0.28
122 0.31
135 0.34
150 0.38
165 0.44
182 0.56
200 0.63
222 0.69
245 0.75
270 0.88
300 0.97
330 1.06
365 1.31
BC-SW, BC-DW, BAF SWSI & DWDI, BCS, BCV (Class I & II), DCV Impeller Overlap
Size 105 122 135 150 165 182 200 222 245 270 300 330 365 402 445 490 542 600 660 730 807 890
A 10.50 12.25 13.50 15.00 16.50 18.25 20.00 22.25 24.50 27.00 30.00 33.00 36.50 40.25 44.50 49.00 54.25 60.00 66.00 73.00 80.75 89.00
B 0.28 0.31 0.34 0.38 0.38 0.47 0.52 0.55 0.59 0.67 0.75 0.82 0.72 0.90 1.00 1.10 1.25 1.24 1.36 1.88 2.09 2.28
BAV, BAE-SW & BAE-DW Impeller Overlap
Size 122 135 150 165 182 200 222 245 270 300 330 365 402 445 490 542 600 660 730 807 890 982
A 12.25 13.50 15.00 16.50 19.00 20.82 23.16 25.51 28.11 31.23 34.36 38.00 41.90 46.33 51.01 56.48 62.47 68.71 73.00 80.75 89.00 98.25
B 0.31 0.34 0.38 0.44 0.38 0.41 0.45 0.50 0.55 0.61 0.67 0.75 0.82 0.91 1.00 1.11 1.23 1.35 1.50 1.65 1.82 2.02
Note: Onswingoutfans,theimpellerandfunnelshouldbeposionedascloseaspossible(maxgap1/8”)suchthatthedoorcanbeopenedwithout
the impeller and funnel interfering.
Models BC-DW, BAF-DW, BAE-DW
TCBI (60 Hz)
Impeller Overlap
Size B
3 0.34
5 0.38
7.5 0.38
10 0.38
15 0.31
20 0.31
25 0.31
30 0.31
TCBI (50 Hz)
Impeller Overlap
Size B
3-50 0.56
5-50 0.56
7.5-50 0.56
10-50 0.56
15-50 0.56
20-50 0.63
25-50 0.63
30-50 0.63
Twin City Fan