NOVENCO ARO 290, Руководство по установке и обслуживанию

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6 Novenco
®
jet fan types AUO/ARO - ARP/AUZ - AUT/ART - AZT
and dismount the silencers and
suspension brackets. Mark positions
of brackets and silencers with tape so
they are not mixed up.
AUT/ART:
Loosen and remove the
wire guards in both ends (figure 6,
item 11).
AZT:
Loosen the two pairs of nuts
and bolts, which hold the hose clamp
together. Remove clamp and outlet
cone. Also, remove the wire guard on
the inlet.
4. Disconnect the cable from terminal
box to motor.
5. AUO-AUT/ART-AUZ-AZT:
Remove hub cap item 6 by removing
screws item 4, and centre disc item 5.
For AUZ and AZT, also remove the
centre bolt item 13.
ARO-ARP:
Remove the rivets in the
guide vane arrangement item 11 to
remove the arrangement.
6. Dismount rotor item 7 by means of a
puller fastened in two threaded holes
of hub boss (M8 × 16 with distance
50 mm).
7. AUO/ARO-ARP-AUT/ART:
Remove the four set screws item 8.
AUZ and AZT:
Remove the nuts and
bolts, items 14 and 15.
8. Mark the motor position and
direction of rotation for later
remounting.
9. Dismount motor, item 10.
AUO/ARO-ARP-AUT/ART:
Remove the motor mounting flange
item 9.
AZT:
Remove the four stiffeners
items 16 that hold the motor.
Service the motor according to the
manufacturer’s instructions. These are
included with the fan.
6.7 Mounting of motor
Assemble the fan after motor service.
Grease all bolts and screws
before mounting.
References to specific items below are to
figure 8, unless noted otherwise.
Mounting motor
1. Mount motor, item 10.
AUO/ARO-ARP-AUT/ART:
Remount the motor with the set
screws, item 8.
AUZ and AZT:
Remount the motor
with bolts and washers, items 14 and
15. For AZT also mount the
stiffeners, items 16.
2. AUO/ARO-ARP-AUT/ART: Check
that the mounting flange item 9 is
correctly located and that the motor
shaft is centred in the fan casing,
before tightening the set screws item
8.
AUZ and AZT:
Check that the motor
shaft is centred in the fan casing,
before tightening the bolts items 14.
3. Mount the rotor item 7 on the motor
shaft by means of a jack fastened in
the threaded hole of the motor shaft.
Press the rotor hub to contact against
the motor shaft collar.
Leave out use of hammers or
similar, as the motor bearings
are sensitive to shocks.
4. Use a feeler gauge to check that the
blade tip clearance is the same
throughout the circumference.
Adjust the motor position in the
suspension arrangement with
reference to table 7.
5. Connect the cable between motor
and terminal box. Use same routing
as from the factory.
6. AUO-AUT/ART: Mount hub cap
item 6, centre screw item 4 and centre
disc item 5 and tighten.
AUZ and AZT: Mount the centre disc
item 5, centre bolt item 13, hub cap
item 6 and screws items 04 and
tighten.
7. ARO-ARP: Mount guide vane
arrangement item 11 by means of ten
blind rivets ø3.2 × 10 (monel metal).
ARO 500:
Use ten blind rivets ø4 × 10
(monel metal).
8. AUO/ARO: Mount silencers items 03
to fan casing by means of set screws
item 2.
ARP/AUZ:
Mount silencers items 03
together with the suspension
brackets to the fan casing by means of
set screws item 2.
AUT/ART:
Mount wire guards
(figure 6, item 11).
AZT:
Mount the outlet cone, fit the
hose clamp and tighten both pairs of
nuts and bolts to hold the cone.
Mount the wire guard on the inlet.
9. Lift the fan back into position.
AUO/ARO-ARP/AUZ-AUT/ART:
Mount four expansion bolts item 1,
nuts and tighten.
AZT:
Mount nuts onto the four
suspension bolts to secure the fan to
the ceiling plate.
Adjust the outlet cone for correct
directional thrust. Tighten nuts and
bolts on the hose clamp to secure the
cone.
10. Connect the supply cable to the
terminals (figure 6, item 6).
To start the fan, follow the procedure
described in section 6.
6.8 Blade angle adjustment
The blade angle has been adjusted in the
factory with a mounting fixture to
deliver the performance required. Do
not change the blade angle without
previous agreement with Novenco.
Sizes
Torques [Nm]
Motor fastening
(items 08 and 14)
Rotor fastening
(items 04 and 13)
M6 9.4 6
M8 23 12
M10 45 20
M12 78 20
M16 190 25
M20 370 25
Table 6. Motor and rotor fastening
torques
Minimum [mm]
Fan size Std. temp. F300 F400
AUO/ARO 290 1 1.9 2
AUO/ARO 380 1.5 2.2 2.5
AUO 500 1.5 2.2 3.1
AUZ 340 0.5 1.7 2.7
ARP 340 1.3 2 2.5
AUT/ART 340 1.3 2 2.5
AZT 280 0.5 1.5 2.3
AZT 355 0.5 1.8 2.8
AZT 450 0.5 2 3.3
Table 7. Blade tip clearances