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Air Handling Unit
Installation, Operation, and Maintenance Manual
April 2021
9.0 Isolators
9.1 Plenum and Centrifugal Fan Isolators
ClimateCraft installs spring isolators under most fans.
Figure 9-1 shows the configuration of the typical isolator
for centrifugal or plenum fans. The springs should arrive
properly adjusted, but with the shipping block installed.
Prior to operation remove the shipping blocks and verify all
springs are free-floating.
NOTICE
If adjustment is required, counter-clockwise rotation of
the adjusting nut compresses the spring and raises the
fan, while clockwise rotation of the adjusting nut lowers
the fan.
Begin the adjusting process at the heaviest corner of the
fan and proceed as shown in Figure 9-1.
Figure 9-1.
1
2
3
4
HEAVIEST
CORNER
Figure 9-2.
5/8" Adjusting Stud
Blower Base Frame
Shipping Block
½ HH Bolt
5/8" Jam Nut
External Adjusting Nut
SWSR-2 Housing
¾” HH Bolt
¾” Lockwasher
5/8" Steel Plate
Floor
7.38"
(Free Height) 6.06"
(Ref)
9.2 FanMatrix™ Isolators
ClimateCraft FanMatrix™ isolators (Figure 9-3) do not
require adjustment. The shipping bolt should be removed
before operation with the bracket left in place (Figure 9-4).
Figure 9-3.
Figure 9-4.
SHIPPING BOLT
(Remove before
operating)
BRACKET ATTACHMENT BOLTS
DO NOT REMOVE
