Replacing Fan Motor Pulley And V-Belt - Daikin FDQ16PY1 Installation Manual

REPLACING FAN MOTOR PULLEY AND V-BELT

1. Open the service cover 1 on the side of piping.
(Refer to Fig. 3)
2. Loosen the adjustment nuts (b-1, 2, 3) of the adjustment bolts
(a) and the motor suspension bolts (d) on both sides of the
motor stand (c).
3. Move the motor stand (c) towards the fan pulley (e) and remove
the V-belt (f).
4. Disconnect the wiring of motor (j) from the fan-motor (m) termi-
nal block.
5. Remove the motor suspension bolts (d) and nuts (b-3) on both
sides of the motor stand (c).
6. Remove the motor stand (c) along with the fan-motor (m) from
the frame (k).
7. Remove the old motor pulley (g).
8. Insert the new motor pulley (g') in the fan motor (m) shaft. <At
this time, temporarily fasten the hex screws (h). >
9. Install the motor stand (c) along with the fan-motor (m) on the
frame (k).
10. Temporarily fasten the motor suspension bolts (d) on both
sides of the motor stand (c).
11. Connect the wiring of motor (j) to the fan-motor (m) terminal
block.
12. Install the new V-belt (f').
13. Fasten the adjustment nuts (b-1, 2, 3). Move the motor stand
(c) so as to tighten the V-belt (f').
14. Adjust the levelness of the fan pulley (e) and motor pulley (g')
and the slackness of the V-belt (f'). <Refer to Fig. 6>
15. Fasten the hex screws (h), the adjustment nuts (b-1, 2, 3), and
the motor suspension bolts (d), and secure the pulley (g') and
motor stand (c).
16. Install the service cover 1.
CAUTION
After completion of wiring, shut off all the power supply and turn off the breaker in the control box
before replacing or adjusting the fan belt.
8
Motor stand (c)
Motor
shaft
Fan pulley (e)
Adjustment
bolts (a)
Adjustment
nuts (b-3)
Frame (k)
Fan pulley(e)
* Determine the degree of levelness of the fan
pulley (e) and motor pulley (g') based on the
slackness of the V-belt (27.2~37.2 N, 4 mm).
Fig.6
Motor pulley
hex screws (h)
V-belt (f)
Motor pulley (g)
Adjustment nuts (b-1)
Adjustment nuts (b-2)
27.2~37.2N
(2.8~3.8kgf)
Fan-motor (m)
Motor terminal
block
Wiring of motor(j)
Motor suspension
bolts (d)
(both sides)
Degree of levelness
0±1.0 mm*
Motor pulley (g')
V-belt (f')
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