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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.
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