66
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
17W
FC A15-15A
213T
22.0
23.5
18.0
19.7
19.8
21.5
18.9
20.5
1
7
/
16
1
7
/
16
215T
22.0
23.5
18.0
19.7
19.8
21.5
18.9
20.5
254T
21.5
23.1
17.8
19.5
19.5
21.2
18.5
20.2
FC A18-18A
145T
23.1
24.5
17.2
18.7
19.1
20.6
19.0
20.4
1
3
/
16
1
7
/
16
182T
22.5
23.8
16.7
18.4
18.3
19.9
18.4
19.9
184T
22.5
23.8
16.7
18.4
17.9
19.6
18.4
19.9
213T
22.0
23.4
16.5
18.1
17.5
19.2
18.0
19.5
215T
22.0
23.4
16.5
18.1
17.5
19.2
18.0
19.5
18T
FC A15-15A
213T
22.0
24.6
19.0
21.9
20.6
23.5
19.4
22.2
1
11
/
16
1
11
/
16
215T
22.0
24.6
19.0
21.9
20.6
23.5
19.4
22.2
254T
21.6
24.4
19.0
21.9
20.5
23.4
19.2
22.1
256T
21.6
24.4
19.0
21.9
20.5
23.4
19.2
22.1
284T
21.4
24.2
19.0
21.9
20.5
23.4
19.1
22.0
286T
21.4
24.2
19.0
21.9
20.5
23.4
19.1
22.0
FC A18-18A
56
25.0
27.5
20.4
23.2
22.5
25.3
21.5
24.1
1
3
/
16
1
7
/
16
143T
25.0
27.5
20.4
23.2
22.5
25.3
21.5
24.1
145T
25.0
27.5
20.4
23.2
22.5
25.3
21.5
24.1
182T
24.5
27.0
20.2
23.1
22.3
25.1
21.1
23.8
184T
24.5
27.0
20.2
23.1
22.3
25.1
21.1
23.8
213T
24.1
26.7
20.1
23.0
22.1
25.0
20.9
23.6
215T
24.1
26.7
20.1
23.0
22.1
25.0
20.9
23.6
21W
FC A15-15A
215T
19.9
21.3
15.6
17.3
17.4
19.0
16.6
18.2
1
11
/
16
1
11
/
16
254T
19.3
20.8
15.4
17.1
17.1
18.8
16.2
17.8
256T
19.3
20.8
15.4
17.1
17.1
18.8
16.2
17.8
284T
18.9
20.5
15.2
17.0
16.9
18.6
15.9
17.6
FC A20-18A
145T
24.7
26.0
14.6
16.4
17.4
19.1
18.6
20.0
1
7
/
16
1
7
/
16
182T
23.9
25.1
14.0
15.8
16.7
18.5
17.8
19.2
184T
23.9
25.1
14.0
15.8
16.7
18.5
17.8
19.2
213T
23.2
24.6
13.5
15.4
16.2
18.1
17.2
18.7
215T
23.2
24.6
13.5
15.4
16.2
18.1
17.2
18.7
254T
22.4
23.8
13.0
14.9
15.6
17.5
16.4
18.0
22T
FC A15-15A
213T
22.0
24.6
19.0
21.9
20.6
23.5
19.4
22.2
1
11
/
16
1
11
/
16
215T
22.0
24.6
19.0
21.9
20.6
23.5
19.4
22.2
254T
21.6
24.4
19.0
21.9
20.5
23.4
19.2
22.1
256T
21.6
24.4
19.0
21.9
20.5
23.4
19.2
22.1
284T
21.4
24.2
19.0
21.9
20.5
23.4
19.1
22.0
286T
21.4
24.2
19.0
21.9
20.5
23.4
19.1
22.0
FC A20-18A
56
31.7
34.1
24.1
26.9
27.7
30.5
26.0
28.5
1
7
/
16
1
7
/
16
143T
31.7
34.1
24.1
26.9
27.7
30.5
26.0
28.5
145T
31.7
34.1
24.1
26.9
27.7
30.5
26.0
28.5
182T
31.2
33.6
23.8
26.7
27.4
30.2
25.5
28.2
184T
31.2
33.6
23.8
26.7
27.4
30.2
25.5
28.2
213T
30.8
33.2
23.7
26.6
27.2
30.0
25.2
27.9
215T
30.8
33.2
23.7
26.6
27.2
30.0
25.2
27.9
254T
30.3
32.8
23.5
26.4
27.0
29.8
24.9
27.6
256T
30.3
32.8
23.5
26.4
27.0
29.8
24.9
27.6
25W
FC A20-15A
215T
31.3
33.1
23.5
25.6
26.7
28.8
25.7
27.7
1
11
/
16
1
11
/
16
254T
30.7
32.5
23.2
25.4
26.4
28.5
25.2
27.2
256T
30.7
32.5
23.2
25.4
26.4
28.5
25.2
27.2
284T
30.2
32.1
23.0
25.2
26.1
28.3
24.9
26.9
FC A20-18A
145T
32.4
34.1
24.1
26.2
27.4
29.5
26.6
28.5
1
7
/
16
1
7
/
16
182T
31.7
33.5
23.7
25.9
27.0
29.1
26.1
28.0
184T
31.7
33.5
23.7
25.9
27.0
29.1
26.1
28.0
213T
31.3
33.1
23.5
25.6
26.7
28.8
25.7
27.7
215T
31.3
33.1
23.5
25.6
26.7
28.8
25.7
27.7
254T
30.7
32.5
23.2
25.4
26.4
28.5
25.2
27.2
