Table of Contents
Advertisement
Setscrews
Setscrews on MPQ fan wheels must be installed using a
calibrated torque wrench to the value listed below, ±5%. The
fasteners must be periodically checked to satisfy agency
requirements for components on rotating machinery.
Table 14: Setscrew Torque Specifications—Class II
Plenum Fans Only
Fan Size
Setscrew Size
11/12/13
3/8
15
3/8
16
3/8
18
3/8
20
3/8
22
3/8
24
3/8
27
3/8
30
1/2
33
1/2
36
1/2
40
1/2
44
1/2
49
1/2
54
1/2
60
3/4
IM 777-8 • Skyline Air Handler
Torque (ft .-lb)
Aluminum
Steel
19.2
N/A
19.2
N/A
19.2
N/A
19.2
N/A
19.2
N/A
19.2
N/A
19.2
N/A
19.2
22
41.7
55
41.7
55
41.7
55
41.7
55
41.7
55
41.7
55
41.7
55
115
150
Table 15: Bearing Collar and Wheel Hub Set Screw Torque
(All Fans Except Class II Plenum Fans)
Setscrew Diameter (in .)
1/4
1/16
3/8
7/16
1/2
5/8
26
o
G
peraTIon
uIdelInes
Minimum torque
ft/lbs (kg/m)
5.5 (0.76)
10.5 (1.45)
19.0 (2.63)
29.0 (4.01)
42.0 (5.81)
92.0 (12.72)
www.DaikinApplied.com
Advertisement
Table of Contents
