Daikin PreciseLine Series Installation And Maintenance Manual page 113

Figure 119: Loosen The Motor Shaft Set Screw
Figure 120: Loosen Belly Band Bolt And Remove From
Motor
6. Reverse this process to install the new motor, taking care
to center the fan on the shaft before tightening the motor
shaft set screw.
Horizontal Units Size 030-050
(DWDI Forward-Curved Fans)
1. Disconnect the wires from the motor to the VFD at the
VFD. The wires between the VFD/Fuse Block and the
control box may be left attached.
NOTE: Unit size 030 shown. Views may vary by unit size. For
clarity not all wiring and components are shown.
2. Remove the VFD mounting bracket by removing three
mounting screws; two on the access panel side of the
bracket and one on the upper-back side of the bracket.
3. The VFD mounting bracket with the control box wires still
attached should be moved out of the way and supported
to avoid straining the wires.
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Figure 121: Remove VFD Mounting Bracket
4. Remove the five screws holding the fan sled to the
cabinet bottom panel; two screws on the access panel
side and three on the upstream side of the sled.
Figure 122: Remove Five (5) Screws Holding Fan Sled
5. Pull the sled assembly out, using caution to support its
weight and gain access to the motor shaft set screws
shown in Figure 123.
FAN MOTOR SLED ASSEMBLY IS HEAVY!
Failure to use the proper lifting equipment specified to support the weight
of the sled assembly can cause property damage, personal injury or death.
Supports should be able to withstand at least 200 lbs of weight.
6. Loosen the two motor shaft set screws; one on either
side of the fan center partition.
113 IM 1267-7 • PRECISELINE AIR HANDLER
Maintenance
DANGER