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Table 22 — Forward-Curved Fan Drive Centerline Distances in Inches (cont)
39M UNIT
FAN MODEL
MOTOR
SIZE
NO.
SIZE
182T
184T
213T
215T
254T
256T
96W
FC 40
284T
286T
324T
326T
364T
365T
182T
184T
213T
215T
254T
256T
110W
FC 40
284T
286T
324T
326T
364T
365T
LEGEND
BHF — Bottom Horizontal Front
BHR — Bottom Horizontal Rear
DBF — Downblast Front
DBR — Downblast Rear
BHF/BHR
DBF/DBR
MIN
MAX
MIN
46.1
48.6
27.0
46.1
48.6
27.0
45.5
48.1
26.6
45.5
48.1
26.6
44.6
47.3
26.2
44.6
47.3
26.2
44.0
46.8
26.0
44.0
46.8
26.0
43.2
46.0
25.6
43.2
46.0
25.6
42.4
45.3
25.3
42.4
45.3
25.3
46.1
48.6
27.0
46.1
48.6
27.0
45.5
48.1
26.6
45.5
48.1
26.6
44.6
47.3
26.2
44.6
47.3
26.2
44.0
46.8
26.0
44.0
46.8
26.0
43.2
46.0
25.6
43.2
46.0
25.6
42.4
45.3
25.3
42.4
45.3
25.3
THF
— Top Horizontal Front
THR
— Top Horizontal Rear
UBF
— Upblast Front
UBR — Upblast Rear
THF/THR
MAX
MIN
MAX
31.9
35.7
39.5
31.9
35.7
39.5
31.6
35.2
39.0
31.6
35.2
39.0
31.3
34.5
38.4
31.3
34.5
38.4
31.1
34.0
38.0
31.1
34.0
38.0
30.8
33.4
37.5
30.8
33.4
37.5
30.5
32.8
36.9
30.5
32.8
36.9
31.9
35.7
39.5
31.9
35.7
39.5
31.6
35.2
39.0
31.6
35.2
39.0
31.3
34.5
38.4
31.3
34.5
38.4
31.1
34.0
38.0
31.1
34.0
38.0
30.8
33.4
37.5
30.8
33.4
37.5
30.5
32.8
36.9
30.5
32.8
36.9
77
UBF/UBR
FAN SHAFT DIAM. (in.)
MIN
MAX
Class 1
37.6
40.4
37.6
40.4
37.0
39.8
37.0
39.8
36.2
39.1
36.2
39.1
2
/
7
16
35.6
38.6
35.6
38.6
34.8
37.9
34.8
37.9
34.0
37.2
34.0
37.2
37.6
40.4
37.6
40.4
37.0
39.8
37.0
39.8
36.2
39.1
36.2
39.1
2
/
7
16
35.6
38.6
35.6
38.6
34.8
37.9
34.8
37.9
34.0
37.2
34.0
37.2
Class 2
2
/
7
16
2
/
7
16
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