Trane QFNA-IOM-1 - Manual (Page 16)

Installation —Q Fan
16 FNA-IOM-1
Unit
Size
Tip Clearance
(Inches)
16
19 .030 to .075
.030 to .075
21
24 .030 to .075
.030 to .075
27
30 .035 to .080
.040 to .085
33
46 .045 to .090
.050 to .095
40
44 .055 to .100
.065 to .110
Table 3—Tip Clearance Between
Wheeland Housing Class 1, 2
and 3
Bolt Dia.
(Inches)
Torque Ft/Lb
1/4 6
5/16 12
3/8 24
7/16 52
1/2 69
9/16 99
5/8 150
Table 4—Recommended Torques for
Wheel Bolts (Wheel Bolts are on Fan Sizes
(49-60 Only)
Bolt Dia.
(Inches)
Torque Ft/Lb
1/4 6
5/16 12
3/8 20
7/16 43
1/2 58
9/16 76
5/8 115
3/4 195
Table 5—Nut and Bolt Torque
Requirements for Fan Housing
and Bearing Supports