Installation Manual 3000B Page 7 of 9 May 2012
If necessary adjust fan ring or fan stack by shimming to obtain
proper clearance. For heat exchangers, spacers may be added at
the fan ring joints to increase clearance (See Figure 10). Use a
chisel to maintain the correct gap until the bolts on the ring are re-
tightened.
Figure 10
If a small adjustment is needed, tighten or loosen nut on fan strut
in section requiring adjustment (See Figure 11).
Figure 11
SPACERS
OPERATING INSTRUCTIONS
Start fan and check rotation. Viewed from top (discharge), fan
blades should rotate clockwise.
Check motor power consumption to be sure fan is pulling d
desired load. CAUTION: If positive pitch is set in summer to
use all available motor amps (nameplate rating), motor could
be overloaded in winter. Design pitch angles usually do not use
all of the available motor horsepower. This ensures that the
motors will not be overloaded at low winter temperatures.
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