1
Installation and Maintenance
Novax Smoke Exhaust Fan Type ACN Smoke
1. Application
2. Handling
2.1 Marking
2.2 Weight
2.3 Transport
3. Storage
4. Installation
4.1 Prior to attachment
4.2 Attachment
4.3 Mounting brackets
4.4 Duct connection
4.5 Electric connection
5. Start of operation
5.1 Prior to start of operation
5.2 Motors with Y/
Δ
starting
5.3 Starting procedure
6. Maintenance
6.1 Protection prior to inspection and
maintenance
6.2 Fan casing
6.3 Impeller
6.4 Motor
6.5 Dismounting of motor
6.6 Mounting of motor
6.7 Blade pitch adjustment
6.8 Fault localization
7. Test of operability and
operating condition
7.1 Periodic inspection
8. Sound
9. Attestation of conformity
1. Application
Novax smoke exhaust fans type ACN-
smoke are sturdy axial flow fans de-
signed for both the daily ventilation re-
quirements under normal conditions
and smoke/heat exhaustion in the event
of a fire in all kinds of commercial and in-
dustrial buildings.
Novax smoke exhaust fans type ACN-
smoke are tested and approved to meet
the requirements of fans for smoke ex-
haustion class F300 (300°C for 60 min-
utes) and F400 (400°C for 120 minutes)
according to standard: EN 12101-3.
2. Handling
2.1 Marking
The ACN smoke exhaust fan is provided
with a standard nameplate with Noven-
co's name and address.
It also mentions type/size e. g. ACN
1000/380, number of blades, year of pro-
duction, weight, serial number/order
number (production number). Further-
more, it mentions maximum tempera-
ture and working period in minutes and
if the fan is supplied with approval
number, class/category are also men-
tioned as well as test standard applied
(EN 12101-3). Fan pressure, air quantity,
output and maximum speed per minute.
The fan is also provided with a motor
nameplate with relevant motor data in-
cluding insulation class of the motor.
2.2 Weight
The total weights shown in table 1 apply
to axial flow fan type ACN-smoke. The
total weight is determined on the basis of
type/size of fan and maximum motor
size employed and is in terms of kg.
2.3 Transport
When transporting the fans take care
that no water (e. g. rainwater) gets into
the motor or other sensitive components.
Novax smoke exhaust fans type ACN-
smoke are delivered on pallets or bearers
to allow fork-lift transport.
The forks of the fork-lift truck must lift
underneath the frame. Set down the fan
as slowly as possible and on a soft foun-
dation. Vibrations, shocks, and fall may
result in imbalance and deformation and
may damage the motor bearings.
MU 14347 0610
918149-0
GB
Table 1. Example of total weights (Fan incl. motor, LOHER 4-pole) [kg]
Type ACN-smoke
Fan size
Motor size
-90
-100
-112
-132
-160
-180
-200
-225
-250
-280
Hu
b d
ia
m
et
er
s
160,
230,
280,
330 and 380
400
47
57
500
62
72
80
95
560
75
85
93
108
185
630
80
90
98
113
190
222
710
93
103
111
126
203
235
800
102
112
120
135
212
244
900
118
128
136
151
228
260
1000
154
164
172
187
264
296
Hub diameters
40
3
900
170
247
1000
207
284
316
1120
205
220
297
329
1250
222
237
314
346
1400
255
332
364
H
u
b di
a
m
eters
578
900
206
283
315
1000
245
322
354
442
1120
257
272
349
381
469
554
1250
307
322
399
431
519
604
689
1400
459
491
579
664
749
899
1600
616
701
786
936
Motor type
-90
-100
-112
-132
-160
-180
-200
-225
-250
-280
Motor Weight (kg)
20
30
38
53
130
162
250
335
420
570
