67
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
25T
FC A20-15A
213T 30.8 33.2 23.7 26.6 27.2 30.0 25.2 27.9
1
11
/
16
1
11
/
16
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
284T 29.9 32.4 23.5 26.3 26.8 29.7 24.6 27.4
286T 29
.9 32.4 23.5 26.3 26.8 29.7 24.6 27.4
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
30W
FC A20-18H
215T 31.3 3
3.1 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
286T 30.2 32.1 23.0 25.2 26.1 28.3 24.9 26.9
FC A20-20H
182T 31.7 33.5 23.7 25.9 27.0 29.1 26.6 28.5
1
11
/
16
1
11
/
16
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 26.1 28.0
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 25.7 27.7
256T 30.7 32.
5 23.2 25.4 26.4 28.5 25.2 27.2
30T
FC A20-18H
213T 32.1 34.4 24.5 27.2 27.7 30.4 26.6 29.1
1
11
/
16
1
11
/
16
215T 32.1 34.4 24.5 27.2 27.7 30.4 26.6 29.1
254T 31.6 33.9 24.2 27.0 27.4 30.1 26.2 28.7
256T 31.6 33.9 24.2 27.0 27.4 30.1 26.2 28.7
284T 31.1 33.5 24.0 26.8 27.1 29.9 25.8 28.4
286T 31.1 33.5 24.0 26.8 27.1 29.9 25.8 28.4
FC A20-20H
182T 32.6 34.8 24.7 27.4 28.0 30.6 27.0 29.5
1
11
/
16
1
11
/
16
184T 32.6 34.8 24.7 27.4 28.0 30.6 27.0 29.5
213T 32.1 34.4 24.5 27.2 27.7 30.3 26.6 29.1
215T 32.1 34.4 24.5 27.2 27.7 30.3 26.6 29.1
254T 31.6 33.9 24.2 27.0 27.4 30.1 26.2 28.7
256T 31.6 33.9 24.2 27.0 27.4 30.1 26.2 28.7
35T
FC A20-20H
182T 32.6 34.8 24.7 27.4 28.0 30.6 27.0 29.5
1
11
/
16
1
11
/
16
184T 32.6 34.8 24.7 27.4 28.0 30.6 27.0 29.5
213T 32.1 34.4 24.5 27.2 27.7 30.3 26.6 29.1
215T 32.1 34.4 24.5 27.2 27.7 30.3 26.6 29.1
254T 31.6 33.9 24.2 27.0 27.4 30.1 26.2 28.7
256T 31.6 33.9 24.2 27.0 27.4 30.1 26.2 28.7
FC A22-22H
254T 32.8 35.3 27.0 29.7 29.0 31.8 27.0 29.7
N/A
2
3
/
16
256T 32.8 35.3 27.0 29.7 29.0 31.8 27.0 29.7
284T 32.4 34.9 26.8 29.4 28.8 31.7 26.8 29.4
286T 32.4 34.9 26.8 29.4 28.8 31.7 26.8 29.4
36W
FC A22-22H
254T 28.8 31.3 23.6 26.5 24.9 27.7 26.0 28.7
1
7
/
16
2
3
/
16
256T 28.8 31.3 23.6 26.5 24.9 27.7 26.0 28.7
284T 28.4 30.9 23.3 26.3 24.6 27.4 25.7 28.4
286T 28.4 30.9 23.3 26.3 24.6 27.4 25.7 28.4
FC A25-25H
182T 31.1 33.3 23.0 25.7 25.6 28.2 27.0 29.4
1
11
/
16
2
7
/
16
184T 31.1 33.3 23.0 25.7 25.6 28.2 27.0 29.4
213T 30.4 32.6 22.5 25.3 25.0 27.7 26.4 28.8
215T 30.4 32.6 22.5 25.3 25.0 27.7 26.4 28.8
254T 29.7 31.9 22.1 24.9 24.5 27.2 25.7 28.2
256T 29.7 31.9 22.1 24.9 24.5 27.2 25.7 28.2