18
Whisper Quiet Fan Installation (Optional)
The optional Whisper Quiet Fan will ship with blades assembled to the prescribed pitch
and hardware torque. Depending on the model number, the fan will ship installed or
crated. Refer to
Table 8
for more shipping methods and fan weights. If the whisper quiet
fan is shipped installed, no additional steps are needed.
Table 8.
Whisper Quiet Fan Shipping Matrix
NOTE:
Refer to the “Customer
Information Packet” for additional
instructions for the specific cooling
tower model.
Crated Whisper Quiet Fan Installation
1. Remove fan seal disk
(Figure 24).
2. Wrap or loop slings around blade shanks
(Figure 25
).
3. Remove bolt, PVC spacer, and plywood spacers from the shipping mount (
Figure 26
).
4. Lift the fan off the shipping crate. Be careful not to damage blades (
Figure 27
).
5. Position the fan over the top of the keyed fan shaft (
Figure 28
).
6. Line up the key with the slot. Slowly lower the fan onto the shaft until the fan hub is
flush against the factory installed tangent locking collar (
Figure 29
).
7. Gradually tighten the bushing bolts in several passes to evenly seat the tapered
bushing into the hub flange, and lock the bushing to the shaft (
Figure 30
). Refer to
Table 9
which lists the prescribed torques for the bushing bolts.
8. Replace fan seal disk, and tighten bolts until rubber seal washer compress to the
diameter of the flat washers (
Figure 31
).
Model
Belt
Internal Motor
External Motor
Fan Weight (lbs)
1020-06J, -06L
Installed
Crated
Installed
390
1020-06K, -06M, -06N
Installed
Crated
Crated
390
1020-07x
Crated
Crated
Crated
390
1222-06x
Installed
Crated
Crated
410
1222-07x
Crated
Crated
Crated
410
1222-10x
Installed
Installed
Installed
560
1222-12x
Installed
Installed
Installed
560
1222-13x
Installed
Installed
Installed
560
1222-14x
Crated
Crated
Crated
560
1424-07x
Crated
Crated
Crated
450
1424-12x
Installed
Installed
Installed
620
1424-13x
Installed
Installed
Installed
620
1424-14x
Crated
Crated
Crated
620
ATTENTION:
Do not use power tools
on the whisper quiet fan.
