69
Table 22 —
Forward-Curved Fan Drive Centerline Distances in Inches (cont)
39M UNIT
SIZE
FAN MODEL
NO.
MOTOR
SIZE
BHF/BHR
DBF/DBR
THF/THR
UBF/UBR
FAN SHAFT DIAM. (in.)
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
Class 1
Class 2
50W
FC A27-22H
254T
31.9
34.1
23.2
25.9
26.0
28.5
27.5
29.8
1
11
/
16
2
7
/
16
256T
31.9
34.1
23.2
25.9
26.0
28.5
27.5
29.8
284T
31.4
33.6
22.8
25.6
25.5
28.2
27.0
29.4
286T
31.4
33.6
22.8
25.6
25.5
28.2
27.0
29.4
324T
30.7
32.9
22.4
25.2
25.0
27.7
26.3
28.8
FC A27-27H
184T
33.5
35.5
24.2
26.8
27.1
29.6
28.9
31.1
1
11
/
16
2
7
/
16
213T
32.7
34.8
23.7
26.3
26.5
29.1
28.2
30.5
215T
32.7
34.8
23.7
26.3
26.5
29.1
28.2
30.5
254T
31.9
34.1
23.2
25.9
26.0
28.5
27.5
29.8
256T
31.9
34.1
23.2
25.9
26.0
28.5
27.5
29.8
284T
31.4
33.6
22.8
25.6
25.5
28.2
27.0
29.4
286T
31.4
33.6
22.8
25.6
25.5
28.2
27.0
29.4
51T
FC A27-22H
182T
42.0
44.3
31.7
34.5
36.7
39.4
34.7
37.2
N/A
2
7
/
16
184T
42.0
44.3
31.7
34.5
36.7
39.4
34.7
37.2
213T
41.6
43.9
31.5
34.3
36.5
39.2
34.4
36.9
215T
41.6
43.9
31.5
34.3
36.5
39.2
34.4
36.9
254T
41.0
43.4
31.2
34.0
36.1
38.9
33.9
36.4
256T
41.0
43.4
31.2
34.0
36.1
38.9
33.9
36.4
284T
40.6
43.0
31.0
33.8
35.9
38.6
33.6
36.1
286T
40.6
43.0
31.0
33.8
35.9
38.6
33.6
36.1
324T
40.1
42.5
30.8
33.7
35.6
38.4
33.1
35.7
326T
40.1
42.5
30.8
33.7
35.6
38.4
33.1
35.7
FC A27-27H
182T
42.0
44.3
31.7
34.5
36.7
39.4
34.7
37.2
N/A
2
7
/
16
184T
42.0
44.3
31.7
34.5
36.7
39.4
34.7
37.2
213T
41.6
43.9
31.5
34.3
36.5
39.2
34.4
36.9
215T
41.6
43.9
31.5
34.3
36.5
39.2
34.4
36.9
254T
41.0
43.4
31.2
34.0
36.1
38.9
33.9
36.4
256T
41.0
43.4
31.2
34.0
36.1
38.9
33.9
36.4
284T
40.6
43.0
31.0
33.8
35.9
38.6
33.6
36.1
286T
40.6
43.0
31.0
33.8
35.9
38.6
33.6
36.1
324T
40.1
42.5
30.8
33.7
35.6
38.4
33.1
35.7
326T
40.1
42.5
30.8
33.7
35.6
38.4
33.1
35.7
58T
FC A27-27H
182T
42.0
44.3
31.7
34.5
36.7
39.4
34.7
37.2
N/A
2
7
/
16
184T
42.0
44.3
31.7
34.5
36.7
39.4
34.7
37.2
213T
41.6
43.9
31.5
34.3
36.5
39.2
34.4
36.9
215T
41.6
43.9
31.5
34.3
36.5
39.2
34.4
36.9
254T
41.0
43.4
31.2
34.0
36.1
38.9
33.9
36.4
256T
41.0
43.4
31.2
34.0
36.1
38.9
33.9
36.4
284T
40.6
43.0
31.0
33.8
35.9
38.6
33.6
36.1
286T
40.6
43.0
31.0
33.8
35.9
38.6
33.6
36.1
324T
40.1
42.5
30.8
33.7
35.6
38.4
33.1
35.7
326T
40.1
42.5
30.8
33.7
35.6
38.4
33.1
35.7
FC A30-30H
182T
45.0
47.2
33.7
36.4
39.2
41.9
37.2
39.7
N/A
2
11
/
16
184T
45.0
47.2
33.7
36.4
39.2
41.9
37.2
39.7
213T
44.5
46.8
33.5
36.2
38.9
41.6
36.8
39.3
215T
44.5
46.8
33.5
36.2
38.9
41.6
36.8
39.3
254T
44.0
46.3
33.2
36.0
38.6
41.3
36.4
38.9
256T
44.0
46.3
33.2
36.0
38.6
41.3
36.4
38.9
284T
43.5
45.9
33.0
35.8
38.3
41.1
36.0
38.5
286T
43.5
45.9
33.0
35.8
38.3
41.1
36.0
38.5
324T
43.0
45.4
32.8
35.6
38.0
40.8
35.5
38.1
326T
43.0
45.4
32.8
35.6
38.0
40.8
35.5
38.1
