Centrifugal Fans AT
belt driven
Issue 2.5 EN
August 2013
1
AMCA
Nicotra Gebhardt S.p.A. (Italy) certifies that
ADH-E fans of the E0, E2, E4, E6 and E7 versions,
from sizes 0160 to 0560,
RDH-E fans of the E0, E2, E4, E6 and E7 versions,
from sizes 0180 to 0560,
ADH and RDH fans of the L, R, K, K1 and K2 versions,
from sizes 0630 to 1000,
AT fans of the S, SC, C and TIC versions,
from sizes 7/7 to 30/28,
shown herein are licensed to bear the AMCA Seal.
Nicotra Gebhardt GmbH (Germany) certifies that
RZR fans of the 11, 12, 15 versions, from sizes 0355 to 1000,
shown herein are licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and comply
with the requirements of the AMCA Certified Ratings Program.
Air performance with Installation Type “A” (“with free outlet”),
and that of the twin fan versions G2L, G2R, G2K, G2K2,
G2E0, G2E2, G2E4, G2E7, SC2, G2C and G2C-C2, and that
of the triple fan versions G3C and G3C-C2 in any installation
type is not AMCA licensed.
Nicotra Gebhardt stands for:
A Maximised flexibility and minimised design effort for customers, because all radial fan
casings have identical dimensions – no matter what kind of
impeller geometry
A Top product quality and shorter delivery times – thanks to
state-of-the-art production
technology
A Energy efficiency through comprehensive system know-how
I
The Nicotra Gebhardt portfolio
A strong provider for many optimal
solutions
When it comes to radial fans, we are the first people you should
talk to. From belt-driven radial fans to plugfans, it’s all there in our
product portfolio. We offer the largest, most comprehensive range of
products in this area – and of course the matching services.
ADH-E / ADH
AT
RDH-E / RDH
RZR
double-inlet
forward-curved
impeller geometry
double-inlet
inch diameters
forward-curved impeller
geometry
double-inlet
backward-curved
impeller geometry
double-inlet
hollow aerofoil
impeller geometry
When everything fits
To us, perfection in our product portfolio means that all product
series in the area of encased radial fans are attuned to one another
and are 100% compatible in their dimensions.
How did we do it?
By using an identical design for the connection dimensions of every
fan size in our newly developed series ADH-E and RDH-E and
carefully coordinating our options and accessories.
In this way, we have standardised and harmonised our product
portfolio in all relevant areas.
Well designed, easy to install,
economical
A system that saves space, time, and money – in an air handling
unit or any other application: our compact base frame offers
decisive advantages:
A The frame lengths have been optimised and
adjusted for the casing position and motor
installation height to achieve the smallest possible overall height
and length
A Exact, optimised coordination of all components, all the way
through to installation, adjustment and testing
A Suitable for all fans of the series ADH-E0, RDH-E0 and RZR-11 up
to size 0500
II
The compact base frame from Nicotra Gebhardt
proSELECTA II
Simple and reliable selection
proSELECTA II is a technical selection program that allows you to
configure your own individually designed fan. It provides you with
the opportunity to choose from the entire range of fan types and
their associated options.
The result from proSELECTA II is the provision of all the
technical data for your fan, including sound level data, dimension
specifications and accessories. Apart from that, as a registered
user, your purchase prices are provided. Additionally fully
dimensioned drawings in DXF format are available, which can be
downloaded and transferred straight into your CAD system.
So that you can be sure
Models and options that are technically not permissible, are
automatically excluded in proSELECTA II. So there is no chance
that you will configure a “wrong” device option.
What else is important to you
During the fan selection process, you can choose any of the
standardised ATEX options.
Free registration and many advantages
You can register as a proSELECTA II user with us, which enables us
to offer you faster order processing. What this means for you is:
A The complete configuration of your fan with its associated system
accessories and belt drive layout.
A The possibility to produce fans that operate via a frequency
inverter.
A The option of saving your own fan configuration on our server.
A The opportunity to modify your saved configuration, even over the
phone to your Nicotra Gebhardt representative.
2
A Volume
up to 300,000 m³/h
A Pressure
up to 2,200 Pa
ADH
High performance centrifugal fan ADH
double inlet for belt drive
impeller with forward curved blades of galvanised
sheet steel
A Volume
up to 65,000 m³/h
A Pressure
up to 2,500 Pa
AT
High performance centrifugal fan AT
double inlet for belt drive
impeller with forward curved blades of galvanised
sheet steel
A Volume
up to 290,000 m³/h
A Pressure
up to 3,500 Pa
RDH
High performance centrifugal fan RDH
double inlet for belt drive
centrifugal impeller with backward inclined blades
A Volume
up to 300,000 m³/h
A Pressure
up to 3,500 Pa
RZR
High performance centrifugal fan RZR
double inlet for belt drive
high performance impeller with backward curved
hollow section true aerofoil blades
Fittings / Accessories
Accessories
Ac
omplete system accessories
Am
iscellaneous fittings
Description
3
Description
A technical description
A operating limits
The Nicotra Gebhardt best-sellers, simply!
The series AT
Fans of AT series don’t need any presentation: they have been one of the main
strengths in the Nicotra Gebhardt product range for over 35 years and have long
been appreciated for their unequalled combination of compactness, efficiency, quietness of operation and versatility, at an extremely affordable price.
News
How we can improve a perfect fan?
We tried, anyway: we developed a new seaming process, to join the back plate to the
side plates with a fully automated process.
The result is a new scroll without welding and whatever can become rusty, also providing a better structural strength to vibrations.
And, since we like to be coherent, we even deleted welding of the side frames, which
are now screwed to scrolls, and from spars, now riveted.
Searching for excellence
Who have say that a product with a nice price cannot be a nice product?
The success of the AT series confirm is the real proof: the bearings have been selected to achieve, at maximum load and with suitable pulleys, a bearing life of 40.000
hours, a number that can be considerably greater in more common load conditions.
Top quality materials, innovative technology of scroll and impeller manufacturing and
assembly, high efficiency, options and accessories, everything has been chosen to
provide a long operating life time, with the maximum quietness and safety.
Complete range
Aren’t you convinced?
Have a look to the range of the AT fans, you immediately realize that, as far as we
can, we’re doing our best to try and meet all your requirements.
We have single, twin and triple fans, with or without side frames, with one, two or
three bearings for light or heavy duty, we have versions with hollow shafts, when there
is the need of reducing the weight without reducing the fan performance, and also
spark-proof versions.
Do you still think that we don’t have the right fan for you?
4
Product overview
range AT
This kind of fans are specially conceived for mechanical ventilation, at temperatures from -20 °C to +40 °C on S, SC, G2L and SC2 models, or
up to 100 °C on AR, TIC, G2C, G2C-C2, G3C, G3C-C2 models.
Air performance and sound data have been obtained in a laboratory registered by AMCA for AMCA 210/99 air performance testing and they are
within the tolerances allowed by the DIN 24166 standard for Class 2.
Single, twin and triple fans
 Impeller size (diameter/width) from 7/7 to 30/28
 Lap-jointed scroll of galvanized steel assembled with roller-lock
seaming (sizes up to 18/18) or with Pittsburgh lock seam (for sizes
larger than 18/18)
 Straight cut off plate at fan outlet
 Impeller with forward curved blades of galvanized steel, optimized for
the best efficiency and quietness
 Galvanized steel shaft
Single, twin and triple fans.
 Airflow up to 180.000 m³/h
 Total pressure up to 1.400 Pa
The variety
We have the right fan for all your applications!
Depending on the fan size, five single fan versions, four twin fan versions and two triple fan versions are available in the AT range.
Version
Description
AT S
Light construction, without feet and outlet flange.Light-duty bearing and pressed steel bearing
supporting brackets.
AT SC
With rectangular side frame and without outlet flange.Light-duty bearing and pressed steel
bearing supporting brackets. C version has also three steel bars with the ends welded to three
corners of both the side frames.
AT AR
With heavy duty reinforced side frames, joined by three steel bars in three corners and without
outlet flange. Medium duty bearing inside lubricatable, cast iron pillow block, mounted on a
robust cross-bar.
AT TIC
With heavy duty reinforced side frames, joined by four steel bars in four corners and without
outlet flange. Medium-heavy duty bearing inside lubricatable, cast iron pillow block, mounted
on a robust cross-bar.
Version
Description
AT G2L
Two S-version single fans joined together by three U-section spars. The two impellers are
mounted on a common shaft, supported by three bearings.
AT SC2
Two SC-version single fans joined together by three L-section spars. The two impellers are
mounted on a common shaft, supported by three bearings.
AT G2C
Two single fans mounted side-by-side inside a common supporting frame of three L-section
spars. The two impellers are mounted on a common shaft, supported at the ends by just two
bearings.Use of hollow shafts on the larger sizes.
AT G2C-C2
Figure
Figure
Mechanically similar to G2C fans but stronger, thanks to the use of hollow shafts with larger
diameter (45 mm) journals and plummer blocks with heavy-duty bearings.
5
Belt Driven Centrifugal Fans / AT / Technical Data
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
AT 7/7
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
Dr
z
J
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
200 mm
46
0.009 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N do not use in this area
m
r1
1.25 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
2000
59
3.0
56
2.2
42
1.5
48
1.1
%
kW
40
1500
54
ηr
Pa
4.0
0.75
29
0.55
1000
0.37
800
0.25
600
95 dB
0.18
500
400
0.12
90
300
0.06
200
0.04
85
150
0.01
300
0.06
19
17
17
2400
16
16
2200
15
15
2000
13
13
1800
12
12
1600
11
11
1400
9
9
1200
8
8
1000
7
7
800
5
5
700
5
5
600
4
4
A7
LW
Normal operation area
400
0.08
500
600
0.1
65
800
N
1000
1500
0.2
2000
0.4
3000
0.6
4000 5000
0.8
1
m³/h
Measured in
m³/s installation B
according to
1.4
0.6 0.8 1
pd2
2
2
∆LWrel4(A)
6
70
SX
200
0.9 1
v2
Speed
1/min
2200
1400
800
2200
1400
800
2200
1400
800
60
DX
pF
40
Duty
point
SX
SX
SX
qV opt
qV opt
qV opt
DX
DX
DX
19
2600
AT SC
Pb
55
50
qV
2800
75
60
30
150
W
20
80
100
80
W
20
AT S
P
r
0.02
1/min
3000
3
3
4
4
6
5
8 10
6
7
20
8
9 10
40
60
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
14
20
80 100
200
400
63
125
250
500 1000 2000 4000 8000
Hz
63
125
250
3
3
2
3
2
2
3
2
2
-2
-6
-2
-4
-9
-5
-7
-11
-9
-7
-1
2
-10
-2
2
-12
-7
-3
0
-3
-8
0
-3
-9
-4
-4
-11
-8
-8
-5
-9
-9
-6
-8
-11
-8
dB
dB
dB
dB
dB
dB
dB
dB
dB
9
3
5
6
0
2
3
-3
-3
2
6
7
-2
4
6
-4
-2
2
6
2
-5
6
1
-6
1
0
-7
-6
-5
-8
-6
-5
-7
-7
-6
-6
-7
-10
-12
-7
-9
-11
-6
-6
-8
-12
-14
-18
-11
-13
-17
-7
-8
-11
m/s ISO 5801:
600 Pa
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
dB
-8
-6
-3
-9
-6
-4
-10
-8
-6
30
500 1000 2000 4000 8000
-4
-5
-3
-5
-6
-4
-4
-7
-5
-5
-4
-2
-6
-5
-3
-6
-5
-3
-4
-3
-6
-5
-4
-6
-5
-4
-4
-5
-8
-10
-5
-7
-10
-4
-5
-6
-10
-13
-16
-9
-11
-16
-6
-7
-11
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
Belt Driven Centrifugal Fans / AT / Technical Data
AT 7/7
Dimensions in mm, subject to change.
AT S-7/7 5 kg
258
282
232
131
131
288
11 × 16
319
156
47
350
186
208
325
203
28
145
86
201
115.5 115.5
257
19
ø9
ø20
153
117
17
316
340
232
88
225
147
169
172
224
28
6
321
254
272
9 × 12
232
288
324
156
350
172
131
224
28
=
131
186
208
35
337
262
201
115.5 115.5
257
ø9
ø20
153
=
59
19
394
232
6
AT SC-7/7 6 kg
=
210
285
=
36
7
Belt Driven Centrifugal Fans / AT / Technical Data
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
AT 9/7
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
242 mm
43
0.029 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N AT AR only
N do not use in this area
m
r1
2.3 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
7.5
44
0.55
800
95
0.37
600
W
W
W
2800
19
19
34
2500
17
17
30
2200
15
15
26
2000
13
13
24
1800
12
12
22
1600
11
11
19
1400
9
9
17
1200
8
8
14
1000
7
7
12
800
5
5
10
600
4
4
7
100 dB
0.75
1000
1/min
AT AR
65
68
3.0
AT SC
57
%
48
5.5
1.5
kW
1.1
1500
2.2
64
ηr
2500
Pa
2000
AT S
Dr
z
J
56
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
0.25
500
90
0.18
400
0.12
300
85
0.06
200
P
r
80
150
0.03
75
70
SX
Normal operation area
N
pF
60
50
300
qV
400
500
pd2
Speed
1/min
2200
1400
800
2200
1400
800
2200
1400
800
1000
1500
0.2
2
3
2
3
∆LWrel4(A)
8
800
0.1
1.4
v2
Duty
point
SX
SX
SX
qV opt
qV opt
qV opt
DX
DX
DX
600
4
0.4
4
6
2000
5
8 10
6
7
20
3000
0.6
8
0.8
9 10
40
60
4000 5000 6000
m³/h
1
14
m³/s
20
80 100
30
200
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
400
Pb
65
60
80
LW
A7
0.02
DX
100
m/s
Measured in installation B
according to ISO 5801:
600 800 Pa
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
dB
63
125
250
500 1000 2000 4000 8000
Hz
63
125
250
500 1000 2000 4000 8000
Hz
4
2
2
3
2
1
2
2
2
12
2
-2
10
-1
-6
0
-10
-10
-5
-1
2
-8
-3
2
-15
-8
-4
0
-3
-6
0
-3
-7
-5
-8
-12
-7
-7
-3
-8
-7
-4
-12
-12
-4
dB
dB
dB
dB
dB
dB
dB
dB
dB
24
11
5
20
7
0
9
-3
-5
3
5
6
0
2
6
-9
-3
-1
5
1
-4
5
0
-4
-1
-5
-10
-5
-4
-1
-5
-5
-3
-9
-10
-2
dB
dB
dB
dB
dB
dB
dB
dB
dB
-7
-4
-4
-8
-5
-4
-10
-5
-5
-6
-6
-8
-6
-6
-7
-5
-6
-6
-9
-11
-15
-8
-9
-13
-6
-7
-9
-15
-18
-22
-12
-15
-20
-9
-11
-14
-5
-2
-2
-5
-4
-3
-7
-3
-4
-4
-4
-6
-5
-5
-6
-3
-4
-5
-7
-9
-13
-7
-8
-11
-5
-6
-8
-13
-16
-20
-11
-14
-18
-8
-10
-14
Belt Driven Centrifugal Fans / AT / Technical Data
AT 9/7
Dimensions in mm, subject to change.
AT S-9/7 6.6 kg
258
282
232
131
131
288
11 × 16
383
188
120
412
215
262
387
253
30
177
124
255
142.5 142.5
311
19
ø9
ø20
185
119
38
380
340
232
123
300
179
199
172
224
28
6
385
254
272
131
9 × 12
232
288
418
215
262
399
324
35
388
188
172
224
28
172
224
28
=
255
142.5 142.5
311
ø9
ø20
185
=
59
19
394
232
6
AT SC-9/7 8.3 kg
131
=
274
349
=
36
385
262
288
16 × 11
131
232
288
131
418
215
262
50
399
324
ø25
388
188
=
ø9
255
142.5 142.5
311
8
185
=
81
7
28
450
232
6
AT AR-9/7 8.3 kg
=
274
349
=
36
9
Belt Driven Centrifugal Fans / AT / Technical Data
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
AT 9/9
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
Dr
z
J
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
242 mm
43
0.034 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N AT AR only
N do not use in this area
m
r1
2.9 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
2500
Pa
ηr
0.75
800
0.55
1/min
W
W
W
2300
15
15
28
2100
14
14
25
1900
13
13
23
1700
11
11
20
1500
10
10
18
1400
9
9
17
1300
9
9
16
1200
8
8
14
1100
7
7
13
1000
7
7
12
900
6
6
11
800
5
5
10
700
5
5
8
600
4
4
7
550
4
4
7
AT AR
100 dB
1.1
1000
41
53
63
7.5
AT SC
1.5
4.0
AT S
53
kW
3.0
59
%
2.2
67
1500
64
2000
95
600
0.37
500
0.25
400
90
0.18
300
0.12
85
200
0.06
80
P
r
150
0.03
80
60
500
600
2
v2
pd2
800
2000
Speed
1/min
1900
1200
700
1900
1200
700
1900
1200
700
1500
2
0.4
3
3
∆LWrel4(A)
10
1000
0.2
qV
Duty
point
SX
SX
SX
qV opt
qV opt
qV opt
DX
DX
DX
Normal operation area
N
50
400
70
SX
pF
60
65
DX
0.02
LW
A7
75
4
4
6
5
8 10
3000
0.6
6
7
20
8
0.8
1
9 10
40
60
4000 5000 6000
8000 10000 m³/h
2
14
m³/s
20
80 100
30
200
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
400
m/s
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
63
125
250
500 1000 2000 4000 8000
Hz
63
125
250
2
2
2
2
1
1
2
2
2
0
-4
4
-5
-8
2
-9
-13
-5
-5
4
0
-8
3
0
-12
-3
-6
2
-5
-4
2
-4
-5
-3
-10
-11
-8
-5
-3
-7
-6
-4
-12
-11
-7
dB
dB
dB
dB
dB
dB
dB
dB
dB
9
3
9
3
-2
6
-2
-7
-1
1
8
4
-3
6
3
-8
1
-4
6
-2
-1
4
-2
-2
1
-8
-8
-6
-6
-8
-6
-6
-7
-6
-5
-6
-10
-12
-16
-9
-10
-14
-6
-7
-8
-16
-20
-23
-13
-17
-21
-7
-10
-14
Measured in installation B
according to ISO 5801:
600 800 Pa
dB
-7
-5
-4
-7
-5
-4
-10
-7
-5
Pb
100
500 1000 2000 4000 8000
-5
-3
-1
-5
-4
-3
-9
-8
-4
-4
-3
-2
-5
-4
-3
-6
-4
-3
-5
-5
-7
-6
-5
-6
-4
-4
-4
-8
-10
-14
-8
-9
-12
-4
-5
-7
-14
-18
-22
-12
-16
-20
-6
-9
-14
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
Belt Driven Centrifugal Fans / AT / Technical Data
AT 9/9
Dimensions in mm, subject to change.
AT S-9/9 7.9 kg
324
348
298
164
164
354
11 × 16
383
188
120
412
215
262
387
253
30
177
124
255
142.5 142.5
311
19
ø9
ø20
185
119
38
380
394
298
123
300
179
199
172
224
28
6
385
320
338
164
9 × 12
298
354
418
215
262
399
324
40
388
188
172
224
28
172
224
28
=
255
142.5 142.5
311
ø9
ø20
185
=
61
19
460
298
6
AT SC-9/9 9.5 kg
164
=
274
349
=
36
385
320
354
16 × 11
164
298
354
164
418
215
262
50
399
324
ø25
388
188
=
ø9
255
142.5 142.5
311
8
185
=
81
7
28
500
298
6
AT AR-9/9 9.5 kg
=
274
349
=
36
11
Belt Driven Centrifugal Fans / AT / Technical Data
AT 10/8
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
Dr
z
J
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
273 mm
48
0.047 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N AT AR only
N do not use in this area
m
r1
2.8 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
1500
1.5
1.1
100 dB
1000
W
19
W
19
W
34
2500
17
17
30
2200
15
15
26
1900
13
13
23
1600
11
11
19
1400
9
9
17
1300
9
9
16
1200
8
8
14
1100
7
7
13
1000
7
7
12
900
6
6
11
800
5
5
10
700
5
5
8
600
4
4
7
500
3
3
6
AT AR
Pb
2.2
1/min
2800
AT SC
4.0
42
60
%
66
7.5
5.5
AT S
3.0
52
kW
2500
Pa
2000
55
68
65
ηr
0.75
800
0.55
600
95
0.37
500
0.25
400
90
0.18
300
0.12
85
200
0.06
150
P
r
80
0.03
500
600
1000
1500
2
3
4
∆LWrel4(A)
Speed
1/min
1900
1200
700
1900
1200
700
1900
1200
700
2000
0.4
3
2
v2
pd2
800
0.2
qV
12
Normal operation area
SX
50
400
70
N
pF
60
Duty
point
SX
SX
SX
qV opt
qV opt
qV opt
DX
DX
DX
65
60
LW
80
A7
75
DX
100
4
6
5
8 10
3000
0.6
6
20
7
8
0.8
9 10
40
60
4000 5000 6000
1
8000 10000
14
80 100
20
m³/s
30
200
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
400
m/s
600 800
63
125
250
500 1000 2000 4000 8000
Hz
63
125
250
3
3
2
2
2
2
2
2
2
-9
-7
-3
-12
-10
-6
-12
-12
-11
-8
-3
1
-11
-5
0
-12
-9
-6
-2
-3
-6
-3
-3
-8
-7
-8
-13
-8
-7
-2
-7
-9
-2
-11
-13
-6
dB
dB
dB
dB
dB
dB
dB
dB
dB
2
2
4
-2
-2
0
-4
-5
-5
0
3
5
-4
0
4
-6
-4
-3
4
1
-3
2
1
-5
-2
-5
-9
-5
-7
-8
-5
-7
-8
-6
-6
-6
-9
-11
-14
-8
-10
-12
-6
-7
-8
-14
-18
-21
-12
-15
-19
-7
-9
-13
Measured in
installation B
according to ISO 5801:
Pa
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
dB
-6
-3
-5
-7
-4
-5
-10
-6
-5
m³/h
2
500 1000 2000 4000 8000
-4
-4
1
-4
-6
0
-8
-9
-4
-3
-1
-3
-4
-2
-4
-6
-4
-3
-3
-5
-6
-4
-6
-6
-3
-4
-5
-7
-9
-12
-7
-8
-11
-4
-5
-6
-12
-16
-20
-10
-14
-18
-6
-8
-13
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
Belt Driven Centrifugal Fans / AT / Technical Data
AT 10/8
Dimensions in mm, subject to change.
AT S-10/8 8.3 kg
291
315
265
147.5 147.5
321
11 × 16
428
206
132
469
249
289
443
287
198
132
157
284
157
35
340
19
ø9
ø20
203
136
38
425
355
265
135
340
197
227
172
224
28
6
431
287
305
475
249
289
=
434
206
172
224
28
172
224
28
=
265
147.5 147.5
321
9 × 12
455
390
284
157
40
203
340
ø9
ø20
157
60
19
425
265
6
AT SC-10/8 9.8 kg
=
330
395
=
36
431
295
321
16 × 11
265
147.5 147.5
321
=
334
206
475
50
249
289
ø25
455
365
ø9
203
=
8
284
157
157
340
79.5
7
28
480
265
6
AT AR-10/8 9.8 kg
=
305
395
=
36
13
Belt Driven Centrifugal Fans / AT / Technical Data
AT 10/10
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
Dr
z
J
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
273 mm
48
0.055 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N AT AR only
N do not use in this area
m
r1
3.5 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
43
66
7.5
kW
1.5
1000
100 dB
1/min
W
W
W
2200
14
14
26
2000
13
13
24
1800
12
12
22
1600
11
11
19
1400
9
9
17
1300
9
9
16
1200
8
8
14
1100
7
7
13
1000
7
7
12
900
6
6
11
800
5
5
10
700
5
5
8
600
4
4
7
AT AR
2.2
5.5
AT SC
1500
3.0
4.0
AT S
57
62
%
68
65
56
ηr
2500
Pa
2000
1.1
800
0.75
600
95
0.55
500
0.37
90
400
0.25
300
0.18
85
0.12
r
200
P
80
A7
150
LW
0.06
70
65
75
Normal operation area
N
pF
60
50
600
qV
v2
800
1000
0.2
2
pd2
3
3
4
14
Speed
1/min
1800
1200
700
1800
1200
700
1800
1200
700
4
6
∆LWrel4(A)
Duty
point
SX
SX
SX
qV opt
qV opt
qV opt
DX
DX
DX
1500
2000
0.4
3000
0.6
5
8 10
6
0.8
7
8
20
4000 5000 6000
9 10
40
60
8000 10000
2
1
14
80 100
200
dB
63
125
250
3
2
2
2
2
2
3
2
2
0
-1
-1
-4
-6
-4
-1
-2
-5
-4
0
3
-8
-3
0
-5
-4
-2
1
0
-4
-1
-2
-6
-3
-4
-9
500 1000 2000 4000 8000
-7
-7
-4
-8
-7
-4
-9
-9
-7
-7
-5
-4
-7
-6
-4
-8
-7
-6
-7
-6
-7
-6
-6
-7
-7
-6
-6
-9
-10
-13
-8
-9
-11
-7
-7
-8
-14
-17
-21
-11
-14
-19
-8
-10
-13
4
30
400
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
15000 m³/h
3
20
Pb
SX
80
DX
100
40
m³/s
m/s
Measured in installation B
according to ISO 5801:
600 800 1000 Pa
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
Hz
63
125
250
dB
dB
dB
dB
dB
dB
dB
dB
dB
9
8
5
4
2
1
7
5
0
3
5
7
-2
2
4
1
0
1
5
4
-1
3
1
-3
1
-1
-5
500 1000 2000 4000 8000
-3
-4
-2
-5
-4
-3
-5
-6
-4
-4
-4
-3
-4
-4
-3
-5
-4
-4
-5
-5
-6
-5
-5
-5
-4
-4
-4
-7
-8
-12
-6
-7
-10
-5
-6
-7
-12
-15
-20
-10
-13
-18
-7
-8
-13
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
Belt Driven Centrifugal Fans / AT / Technical Data
AT 10/10
Dimensions in mm, subject to change.
AT S-10/10 9.3 kg
357
381
331
180.5 180.5
387
11 × 16
428
206
132
469
249
289
443
287
198
132
157
284
157
35
340
19
ø9
ø20
203
136
38
425
420
331
135
340
197
227
172
224
28
6
431
353
371
475
249
289
=
434
206
172
224
28
172
224
28
=
331
180.5 180.5
387
9 × 12
455
390
284
157
40
203
340
ø9
ø20
157
59
19
490
331
6
AT SC-10/10 11 kg
=
330
395
=
36
431
361
387
16 × 11
331
180.5 180.5
387
=
434
206
475
50
249
289
ø25
455
365
ø9
203
=
8
284
157
157
340
76.5
7
28
540
331
6
AT AR-10/10 11 kg
=
305
395
=
36
15
Belt Driven Centrifugal Fans / AT / Technical Data
AT 12/9
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
Dr
z
J
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
322 mm
43
0.097 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N AT AR only
N do not use in this area
m
r1
4.4 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
ηr
W
W
W
2200
26
26
33
110 dB 2000
24
24
30
1800
22
22
27
1600
19
19
24
1400
17
17
21
1300
16
16
20
1200
14
14
18
1100
13
13
17
1000
12
12
15
900
11
11
14
800
10
10
12
700
8
8
11
600
7
7
9
500
6
6
8
AT SC
AT AR
Pb
53
64
68
2.2
1500
1/min
AT S
49
11
40
4.0
%
kW
3.0
7.5
64
5.5
57
2500
Pa
2000
1.5
1000
105
1.1
800
0.75
100
0.55
600
500
0.37
400
95
0.25
P
r
300
0.18
90
0.12
200
150
85
70
65
100
75
80
SX
DX
Normal operation area
80
LW
A7
0.06
N
pF
60
50
600
qV
800
2
3
3
4
∆LWrel4(A)
Duty
point
SX
SX
SX
qV opt
qV opt
qV opt
DX
DX
DX
16
1500
Speed
1/min
1800
1200
700
1800
1200
700
1800
1200
700
2000
0.4
2
v2
pd2
1000
0.2
4
6
3000
0.6
5
8 10
6
0.8
7
20
4000 5000 6000
8
40
8000 10000
2
1
9 10
60
14
80 100
20
200
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
15000
3
4
30
400
250
500 1000 2000 4000 8000
Hz
63
125
250
2
2
2
1
1
1
2
2
2
1
0
3
0
-1
-4
-10
-10
-6
-2
2
-1
-7
-5
-5
-10
-6
-7
0
-5
-5
-5
-8
-6
-7
-10
-11
-8
-7
-3
-9
-8
-3
-12
-12
-5
dB
dB
dB
dB
dB
dB
dB
dB
dB
10
7
7
8
6
0
-4
-5
-3
4
6
2
-2
-1
-3
-5
-3
-5
3
-3
-3
-2
-6
-4
-4
-8
-8
-13
-16
-18
-11
-14
-17
-10
-11
-13
Pa
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
125
-9
-10
-13
-8
-9
-11
-7
-8
-10
Measured in
installation B
50m/s according to ISO 5801:
600 800 1000
63
-6
-7
-7
-5
-6
-7
-4
-5
-7
m³/s
40
dB
-6
-4
-5
-6
-4
-5
-9
-5
-4
m³/h
500 1000 2000 4000 8000
-6
-5
-1
-7
-5
-2
-9
-8
-3
-4
-3
-3
-5
-4
-4
-6
-3
-2
-4
-5
-5
-5
-5
-5
-2
-4
-5
-7
-7
-10
-6
-7
-10
-5
-6
-8
-10
-14
-16
-9
-12
-16
-8
-10
-13
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
Belt Driven Centrifugal Fans / AT / Technical Data
AT 12/9
Dimensions in mm, subject to change.
AT S-12/9 12.7 kg
335
359
11 × 16
546
38
294
341
521
232
153
309
169.5 169.5
365
494
233
153
182
35
230
161
332
334
182
ø9
ø25
390
8
7
28
491
420
309
161
408
224
266
172
224
28
6
339
365
552
172
224
28
172
224
28
=
309
169.5 169.5
365
11 × 16
500
233
294
341
334
182
45
533
443
ø9
ø25
390
8
230
=
497
182
65
7
28
495
309
6
AT SC-12/9 16 kg
=
371
461
=
36
497
339
365
16 × 11
309
169.5 169.5
365
=
500
233
552
60
295
341
ø30
533
443
ø9
230
=
8
334
182
182
390
97.5
7
33
560
309
6
AT AR-12/9 16 kg
=
371
461
=
36
17
Belt Driven Centrifugal Fans / AT / Technical Data
AT 12/12
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
Dr
z
J
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
322 mm
43
0.118 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N AT AR only
N do not use in this area
m
r1
5.2 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
Pa
2000
11
4.0
3.0
2.2
kW
1000
100 dB
1.5
800
1.1
600
0.75
500
95
0.55
1/min
W
W
W
1700
20
20
26
1600
19
19
24
1500
18
18
23
1400
17
17
21
1300
16
16
20
1200
14
14
18
1100
13
13
17
1000
12
12
15
900
11
11
14
800
10
10
12
700
8
8
11
600
7
7
9
500
6
6
8
AT AR
42
7.5
AT SC
64
5.5
AT S
50
58
%
1500
54
67
64
ηr
400
0.37
90
300
0.25
0.18
200
85
0.12
Normal operation area
50
800
N
pF
60
1000
1500
qV
v2
2
2
pd2
3
3
4
∆LWrel4(A)
Duty
point
SX
SX
SX
qV opt
qV opt
qV opt
DX
DX
DX
18
2000
0.4
Speed
1/min
1400
900
600
1400
900
600
1400
900
600
3000
0.6
4
6
4000 5000 6000
0.8
5
8 10
6
8000 10000
2
1
7
20
8
9 10
40
60
14
63
125
250
2
2
2
2
2
1
2
2
2
-6
-2
5
-3
-2
2
-4
-4
-2
1
5
3
-2
2
0
-4
-2
-3
2
-4
-5
-1
-5
-5
-3
-6
-8
80 100
200
500 1000 2000 4000 8000
-7
-6
-4
-7
-6
-5
-9
-8
-6
-7
-5
-4
-7
-5
-4
-8
-6
-4
-7
-7
-7
-6
-6
-7
-6
-6
-7
-9
-10
-14
-8
-9
-12
-7
-8
-10
4
20
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
dB
15000
3
-14
-18
-21
-13
-17
-20
-10
-12
-14
400
m³/h
5
30
Pb
SX
80
75
DX
65
0.06
100
LW
80
70
A7
P
r
150
m³/s
40
m/s
Measured in installation B
according to ISO 5801:
600 800 1000 Pa
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
Hz
63
125
250
dB
dB
dB
dB
dB
dB
dB
dB
dB
2
4
10
4
3
6
2
2
2
6
9
7
3
5
3
1
2
1
6
-1
-2
3
-2
-3
0
-3
-4
500 1000 2000 4000 8000
-5
-4
-3
-5
-4
-3
-5
-4
-3
-6
-4
-3
-5
-4
-3
-5
-4
-3
-5
-5
-5
-5
-5
-6
-4
-4
-5
-7
-8
-12
-7
-8
-11
-6
-7
-8
-13
-17
-20
-11
-16
-20
-9
-11
-15
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
Belt Driven Centrifugal Fans / AT / Technical Data
AT 12/12
Dimensions in mm, subject to change.
AT S-12/12 15.2 kg
421
445
11 × 16
546
38
294
341
521
232
153
395
212.5 212.5
451
494
233
153
182
35
230
161
332
334
182
ø9
ø25
390
8
7
28
491
510
395
161
408
224
266
172
224
28
6
425
451
=
552
172
224
28
172
224
28
=
395
212.5 212.5
451
11 × 16
500
233
294
341
334
182
45
533
443
ø9
ø25
230
390
8
182
497
67
7
28
585
395
6
AT SC-12/12 18.4 kg
=
371
461
=
36
497
425
451
16 × 11
395
212.5 212.5
451
=
500
233
552
60
294
341
ø30
533
443
ø9
230
=
8
334
182
182
390
85
7
33
620
395
6
AT AR-12/12 18.4 kg
=
371
461
=
36
19
Belt Driven Centrifugal Fans / AT / Technical Data
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
AT 15/11
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
Dr
z
J
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
381 mm
51
0.186 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N AT AR only
N do not use in this area
m
r1
6.2 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
2000
5.5
100 dB
4.0
1500
W
26
W
33
2000
24
24
30
1800
22
22
27
1600
19
19
24
1400
17
17
21
1200
14
14
18
1100
13
13
17
1000
12
12
15
900
11
11
14
800
10
10
12
700
8
8
11
600
7
7
9
500
6
6
8
450
5
5
7
AT AR
58
67
7.5
W
26
AT SC
67
15
1/min
2200
AT S
2500
63
11
58
3000
54
kW
%
Pa
3500
70
ηr
3.0
95
2.2
1000
1.5
800
90
1.1
600
0.75
500
85
0.55
400
0.37
300
80
0.25
0.12
150
LW
75
A7
P
r
200
70
80
1500
0.3
qV
pd2
2000
0.4
2
v2
4
20
Speed
1/min
1600
1000
600
1600
1000
600
1600
1000
600
0.8
4
6
∆LWrel4(A)
Duty
point
SX
SX
SX
qV opt
qV opt
qV opt
DX
DX
DX
3000
0.6
3
3
Normal operation
area
N
SX
pF
100
5
8 10
4000 5000 6000
8000 10000
1
6
2
7
20
8
40
9 10
60
15000
3
14
80 100
4
20
63
125
250
200
3
3
2
2
2
1
2
2
2
-6
-1
6
-6
-2
4
-7
-6
-3
2
4
0
2
1
-1
-5
-4
-6
0
-3
-2
-2
-3
-3
-5
-7
-7
500 1000 2000 4000 8000
-5
-4
-3
-5
-5
-4
-8
-8
-6
-6
-6
-6
-6
-6
-5
-8
-7
-6
-8
-7
-7
-8
-7
-6
-7
-6
-6
-9
-9
-12
-8
-9
-11
-6
-7
-8
-12
-15
-18
-11
-13
-17
-8
-10
-12
6
400
m³/h
7
40
30
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
dB
20000
5
Pb
DX
65
m³/s
50 m/s
600 800 1000
Measured in installation B
according to ISO 5801:
Pa
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
Hz
63
125
250
dB
dB
dB
dB
dB
dB
dB
dB
dB
3
6
11
1
4
9
-1
0
1
8
8
3
7
5
2
0
0
-3
4
1
1
1
0
-1
-1
-5
-4
500 1000 2000 4000 8000
-2
-2
-1
-3
-3
-4
-5
-5
-4
-4
-4
-4
-5
-6
-4
-5
-5
-4
-6
-5
-5
-7
-5
-5
-5
-4
-4
-7
-7
-10
-6
-7
-9
-5
-6
-7
-10
-13
-17
-9
-12
-16
-7
-9
-12
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
Belt Driven Centrifugal Fans / AT / Technical Data
AT 15/11
Dimensions in mm, subject to change.
AT S-15/11 17.7 kg
399
423
373
201.5 201.5
429
11 × 16
200
634
38
572
267
342
404
609
380
35
264
197
272
211
ø9
ø25
397
213.5 213.5
453
8
7
28
569
510
373
201
495
258
309
172
224
28
6
403
429
640
172
224
28
172
224
28
=
373
201.5 201.5
429
11 × 16
342
404
45
578
267
=
ø9
ø25
264
621
531
8
397
213.5 213.5
453
575
78
7
28
585
373
6
AT SC-15/11 20.9 kg
=
449
539
=
36
575
403
429
16 × 11
373
201.5 201.5
429
=
578
267
640
60
342
404
ø30
621
531
ø9
264
=
8
397
213.5 213.5
453
96
7
33
620
373
6
AT AR-15/11 20.9 kg
=
449
539
=
36
21
Belt Driven Centrifugal Fans / AT / Technical Data
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
AT 15/15
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
Dr
z
J
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
381 mm
51
0.233 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N AT AR only
N do not use in this area
m
r1
7.5 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
2500
Pa
2000
100 dB
800
1.5
1.1
600
95
500
0.75
400
0.55
1/min
1300
W
16
W
16
W
20
1200
14
14
18
1100
13
13
17
1000
12
12
15
900
11
11
14
800
10
10
12
700
8
8
11
600
7
7
9
500
6
6
8
450
5
5
7
400
5
5
6
AT AR
47
58
70
11
AT SC
67
4.0
60
%
3.0
7.5
AT S
1000
54
kW
2.2
5.5
67
ηr
1500
90
0.37
300
0.25
200
85
0.18
150
80
A7
P
r
0.12
LW
0.09
70
65
80
N
pF
60
50
1500
0.3
qV
v2
pd2
2
2000
0.6
0.8
2
3
4
3
4
∆LWrel4(A)
Duty
point
SX
SX
SX
qV opt
qV opt
qV opt
DX
DX
DX
22
Speed
1/min
1100
800
500
1100
800
500
1100
800
500
3000
0.4
6
4000 5000 6000
8000 10000
1
2
5
6
8 10
7
20
8
40
9 10
60
15000
3
14
80 100
63
125
250
200
2
2
1
2
2
2
2
2
2
-4
1
5
-8
-3
1
-4
-1
0
2
2
-1
-1
-1
-3
-2
-2
-6
-3
-2
-1
-5
-3
-2
-6
-5
-4
500 1000 2000 4000 8000
-3
-5
-4
-4
-5
-5
-6
-7
-7
-7
-6
-5
-7
-6
-5
-7
-7
-5
-8
-7
-7
-7
-6
-6
-7
-6
-6
-9
-10
-12
-8
-9
-11
-7
-8
-9
-14
-16
-19
-12
-14
-17
-10
-11
-14
5
20
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
dB
20000
4
6
m³/h
7
m³/s
40 m/s
30
400
Pb
SX
Normal operation area
75
DX
100
600 800
Measured in installation B
according to ISO 5801:
Pa
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
Hz
63
125
250
dB
dB
dB
dB
dB
dB
dB
dB
dB
2
6
8
-2
2
4
2
3
3
6
5
2
2
2
0
2
1
-3
0
1
1
-2
0
1
-3
-3
-1
500 1000 2000 4000 8000
-1
-4
-4
-1
-3
-4
-2
-4
-4
-6
-5
-4
-5
-5
-4
-5
-4
-3
-6
-5
-5
-6
-5
-5
-5
-4
-5
-7
-8
-11
-7
-8
-10
-6
-6
-8
-12
-15
-19
-11
-13
-17
-9
-11
-14
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
Belt Driven Centrifugal Fans / AT / Technical Data
AT 15/15
Dimensions in mm, subject to change.
AT S-15/15 20.6 kg
497
521
471
250.5 250.5
527
11 × 16
200
634
38
572
267
342
404
609
380
40
264
197
272
211
ø9
ø25
397
213.5 213.5
453
8
7
28
569
608
471
201
495
258
309
172
224
28
6
501
527
640
172
224
28
172
224
28
=
471
250.5 250.5
527
11 × 16
342
404
55
578
267
=
ø9
ø25
264
621
531
8
397
213.5 213.5
453
575
79
7
28
685
471
6
AT SC-15/15 24.5 kg
=
449
539
=
36
575
501
527
16 × 11
471
250.5 250.5
527
=
578
267
640
60
342
404
ø30
621
531
ø9
264
=
8
397
213.5 213.5
453
87
7
33
700
471
6
AT AR-15/15 24.5 kg
=
449
539
=
36
23
Belt Driven Centrifugal Fans / AT / Technical Data
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
AT 18/13
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
Dr
z
J
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
459 mm
48
0.463 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N AT AR only
N do not use in this area
m
r1
10.5 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
3.0
1000
2.2
800
100 dB
1.5
600
1.1
500
95
0.75
400
1/min
W
W
W
1300
16
16
22
1200
14
14
20
1100
13
13
19
1000
12
12
17
900
11
11
15
800
10
10
14
700
8
8
12
600
7
7
10
500
6
6
8
400
5
5
7
350
4
4
6
300
4
4
5
AT AR
69
48
71
67
7.5
AT SC
1500
5.5
15
11
AT S
kW
4.0
62
%
72
2000
61
ηr
2500
Pa
0.55
300
90
0.37
0.25
200
85
P
r
0.18
150
0.12
80
70
SX
Normal operation area
50
1500
2000
3000
0.4
qV
0.6
0.8
2
v2
3
4
pd2
3
4
6
∆LWrel4(A)
Duty
point
SX
SX
SX
qV opt
qV opt
qV opt
DX
DX
DX
Speed
1/min
1100
700
400
1100
700
400
1100
700
400
4000 5000 6000
5
8 10
8000 10000
2
1
6
7
20
8
40
9 10
60
15000
3
4
14
80 100
63
125
250
3
2
2
2
2
2
2
2
2
1
7
8
-3
2
6
-8
-3
-2
6
5
-1
1
3
-2
-3
-4
-8
0
-4
-3
1
-5
-3
-7
-9
-4
30000
6
20
8
7
200
400
m³/h
10 m³/s
40
30
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
dB
20000
5
m/s
600 800 1000
Hz
63
125
250
-7
-4
-4
-7
-5
-5
-10
-5
-6
dB
dB
dB
dB
dB
dB
dB
dB
dB
8
13
12
5
8
10
-2
2
2
11
9
1
6
7
1
2
-1
-4
3
-2
-1
4
-2
-2
-3
-6
-1
-9
-7
-7
-8
-6
-6
-7
-6
-6
-9
-10
-13
-8
-9
-13
-6
-8
-10
-14
-17
-21
-12
-15
-19
-10
-12
-15
Measured in installation B
according to ISO 5801:
Pa
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
500 1000 2000 4000 8000
-6
-7
-5
-6
-7
-5
-5
-7
-5
Pb
DX
75
N
pF
60
24
65
60
80
LW
A7
100
500 1000 2000 4000 8000
-5
-3
-2
-4
-3
-4
-6
-2
-4
-4
-5
-3
-5
-6
-3
-3
-5
-3
-6
-4
-4
-7
-4
-5
-6
-4
-5
-6
-7
-12
-6
-7
-11
-5
-7
-10
-11
-15
-21
-11
-14
-20
-9
-12
-16
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
Belt Driven Centrifugal Fans / AT / Technical Data
AT 18/13
Dimensions in mm, subject to change.
AT S-18/13 27 kg
456
480
430
230
230
486
11 × 16
288
764
42
687
317
415
478
739
457
40
314
262
340
283
ø9
ø25
471
250.5 250.5
527
8
7
28
684
567
430
278
608
307
376
172
224
28
6
470
506
430
230
230
486
11 × 16
770
415
478
55
751
641
ø9
ø25
693
317
172
224
28
172
224
28
=
8
314
=
690
471
250.5 250.5
527
80
7
28
666
430
6
AT SC-18/13 33 kg
=
544
654
=
36
690
470
506
18 × 13
430
230
230
486
=
643
317
770
60
415
478
ø35
751
641
ø9
314
=
10
471
250.5 250.5
527
120
8
38
690
430
6
AT AR-18/13 33 kg
=
544
654
=
41
25
Belt Driven Centrifugal Fans / AT / Technical Data
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
AT 18/18
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
Dr
z
J
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
459 mm
48
0.568 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N AT AR only
N do not use in this area
m
r1
15.2 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
2500
Pa
2000
44
67
70
2.2
600
1.5
500
100 dB
1.1
400
95
0.55
0.37
90
200
0.25
P
r
0.18
85
0.12
13
13
19
1000
12
12
17
900
11
11
15
800
10
10
14
700
8
8
12
600
7
7
10
550
7
7
9
500
6
6
8
450
5
5
8
400
5
5
7
350
4
4
6
75
300
4
4
5
N
50
2000
qV
v2
3000
0.6
0.8
2
2
pd2
3
4
∆LWrel4(A)
Speed
1/min
1000
700
400
1000
700
400
1000
700
400
4000 5000 6000
2
4
6
8000 10000
1
5
8 10
6
7
20
15000
3
8
9 10
40
60
4
14
20000
5
6
20
80 100
200
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
dB
63
125
250
2
2
2
2
2
1
2
2
1
2
6
7
-3
0
2
-5
-5
-6
5
4
1
0
0
-1
-6
-7
-7
-1
-2
-2
-2
-3
-3
-8
-8
-5
500 1000 2000 4000 8000
-5
-4
-3
-5
-4
-4
-7
-6
-6
-6
-6
-5
-6
-6
-5
-6
-7
-5
-8
-8
-7
-7
-7
-6
-7
-6
-6
-10
-10
-13
-8
-9
-13
-6
-7
-9
30000
7
-15
-17
-21
-13
-16
-20
-9
-11
-16
8
400
m³/h
9 10
30
Pb
Normal operation area
SX
80
LW
70
65
60
60
pF
1100
DX
80
26
20
A7
100
Duty
point
SX
SX
SX
qV opt
qV opt
qV opt
DX
DX
DX
W
14
0.75
300
150
W
14
AT AR
800
W
1200
AT SC
%
3.0
1/min
AT S
1000
5.5
55
kW
4.0
15
11
62
7.5
68
1500
57
ηr
40
m³/s
m/s
Measured in installation B
according to ISO 5801:
600 800 1000 Pa
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
Hz
63
125
250
dB
dB
dB
dB
dB
dB
dB
dB
dB
8
12
11
3
5
5
1
0
-2
10
8
4
4
3
2
-2
-3
-4
3
2
0
1
0
-1
-4
-4
-2
500 1000 2000 4000 8000
-2
-2
-2
-2
-3
-3
-4
-3
-4
-4
-4
-4
-5
-5
-3
-4
-5
-4
-7
-6
-6
-6
-5
-5
-5
-5
-4
-8
-9
-12
-7
-8
-12
-5
-6
-9
-13
-16
-21
-12
-15
-21
-8
-11
-17
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
Belt Driven Centrifugal Fans / AT / Technical Data
AT 18/18
Dimensions in mm, subject to change.
AT S-18/18 32.5 kg
583
607
557
293.5 293.5
613
11 × 16
764
415
478
739
42
687
317
288
40
457
ø9
ø25
314
262
340
283
8
471
250.5 250.5
527
694
557
7
28
684
278
608
307
376
172
224
28
6
597
633
557
293.5 293.5
613
11 × 16
770
415
478
55
751
641
ø9
ø25
693
317
172
224
28
172
224
28
=
8
314
=
690
471
250.5 250.5
527
78
7
28
790
557
6
AT SC-18/18 38.2 kg
=
544
654
=
36
690
597
633
18 × 13
557
293.5 293.5
613
=
693
317
770
60
415
478
ø35
751
641
ø9
314
=
10
471
250.5 250.5
527
121
8
38
875
557
6
AT AR-18/18 38.2 kg
=
544
654
=
41
27
Belt Driven Centrifugal Fans / AT / Technical Data
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
AT 20/15
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
Dr
z
J
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
516 mm
42
1.026 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N do not use in this area
m
r1
17.7 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
1500
57
67
70
22
44
kW
7.5
15
68
58
%
2000
11
64
ηr
2500
Pa
5.5
105 dB
4.0
1000
3.0
800
1.5
500
1400
24
1300
22
1200
20
1100
19
1000
17
900
15
800
14
700
12
600
10
500
8
400
7
350
6
300
5
250
4
95
1.1
400
W
100
2.2
600
1/min
0.75
90
300
0.37
85
200
150
0.18
P
r
80
0.09
75
65
40
2000
qV
pd2
3000
0.6
4
2
28
8000 10000
2
1
3
∆LWrel4(A)
Speed
1/min
1100
700
400
1100
700
400
1100
700
400
4000 5000 6000
0.8
2
v2
Duty
point
SX
SX
SX
qV opt
qV opt
qV opt
DX
DX
DX
DX
SX
N
pF
50
Normal operation area
70
4
6
5
8 10
6
15000
3
7
20
8
4
9 10
40
60
20000
5
14
63
125
250
80 100
3
3
2
2
2
2
2
2
2
3
6
9
0
2
6
-1
-2
1
4
6
1
1
4
1
-4
-1
-2
3
-1
-1
0
-1
0
-4
-3
0
500 1000 2000 4000 8000
-4
-4
-4
-4
-3
-4
-4
-3
-4
-7
-7
-5
-6
-7
-5
-5
-6
-5
-10
-8
-8
-9
-8
-8
-8
-7
-8
-11
-11
-12
-10
-10
-12
-10
-11
-11
-14
-16
-18
-13
-15
-17
-13
-14
-16
7
8
200
m³/h
9 10
m³/s
30
m/s
20
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
dB
30000
6
400
Pb
60
60
LW
A7
80
AT TIC
100
Measured in installation B
according to ISO 5801:
600 800 Pa
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
Hz
63
125
250
dB
dB
dB
dB
dB
dB
dB
dB
dB
10
12
13
5
7
10
4
3
4
10
10
4
6
7
3
1
2
1
6
2
2
4
1
2
0
0
2
500 1000 2000 4000 8000
-1
-2
-2
-1
-2
-3
-1
0
-2
-5
-4
-3
-5
-5
-4
-3
-4
-4
-8
-6
-5
-8
-6
-6
-6
-6
-7
-9
-8
-11
-9
-9
-11
-8
-9
-11
-12
-14
-18
-12
-14
-17
-11
-14
-18
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
Belt Driven Centrifugal Fans / AT / Technical Data
AT 20/15
830
13 × 18
200 200
502
542
578
833
372
950
=
520
629
65
967
827
ø11
ø35
542
578
369
38
=
10
275 275
622
662
698
96
8
38
770
502
52
Dimensions in mm, subject to change.
AT TIC-20/15 71 kg
=
632
772
=
58
29
Belt Driven Centrifugal Fans / AT / Technical Data
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
AT 20/20
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
Dr
z
J
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
516 mm
42
1.175 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N do not use in this area
m
r1
20 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
58
65
68
22
48
59
%
15
54
11
65
ηr
2500
Pa
2000
kW
7.5
1500
105 dB
5.5
1000
100
4.0
3.0
800
2.2
95
600
1.5
500
1.1
400
1/min
W
1400
24
1300
22
1200
20
1100
19
1000
17
900
15
800
14
700
12
600
10
500
8
400
7
350
6
300
5
250
4
90
0.75
300
85
0.55
0.37
200
P
r
80
150
0.18
75
100
70
3000
4000 5000 6000
1.4
v2
2
3
4
2
∆LWrel4(A)
30
Speed
1/min
1100
700
400
1100
700
400
1100
700
400
2
1
qV
8000 10000
4
6
5
8 10
15000
3
6
7
20
4
8
5
9 10
40
20000
30000
6
7
14
60
80 100
63
125
250
3
3
2
3
2
2
3
2
2
8
11
12
3
6
10
-2
0
4
2
8
4
-1
7
3
-5
2
0
5
-1
2
5
-1
2
1
-2
0
500 1000 2000 4000 8000
-4
-2
-5
-4
-2
-4
-3
-3
-4
-9
-9
-6
-8
-8
-6
-6
-6
-5
-12
-10
-8
-11
-9
-8
-9
-7
-8
-14
-13
-14
-12
-12
-13
-10
-11
-12
-18
-19
-20
-17
-18
-20
-14
-16
-18
m³/h
9 10
20
14 m³/s
30
200
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
dB
8
40000
400
Pb
SX
40
2000
pd2
Normal operation area
N
pF
50
DX
65
AT TIC
60
60
Duty
point
SX
SX
SX
qV opt
qV opt
qV opt
DX
DX
DX
LW
A7
80 0.09
m/s
Measured in installation B
according to ISO 5801:
600 800 Pa
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
Hz
63
125
250
dB
dB
dB
dB
dB
dB
dB
dB
dB
13
17
16
8
12
15
1
5
9
8
13
7
4
12
6
1
7
4
9
2
4
9
2
4
5
2
3
500 1000 2000 4000 8000
-1
0
-4
-1
0
-3
0
0
-2
-8
-8
-4
-6
-7
-5
-4
-4
-4
-11
-8
-7
-10
-8
-7
-7
-6
-7
-12
-11
-13
-11
-11
-12
-8
-10
-12
-16
-18
-21
-15
-17
-21
-14
-15
-19
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
Belt Driven Centrifugal Fans / AT / Technical Data
AT 20/20
830
13 × 18
275 275
630
670
706
833
372
950
=
520
629
65
967
827
ø11
ø35
670
706
369
38
=
10
275 275
622
662
698
97
8
38
900
630
52
Dimensions in mm, subject to change.
AT TIC-20/20 78 kg
=
632
772
=
58
31
Belt Driven Centrifugal Fans / AT / Technical Data
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
AT 22/15
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
566 mm
48
1.370 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N do not use in this area
m
r1
20 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
30
70
22
39
2000
52
11
60
15
%
2500
Pa
67
ηr
54
Dr
z
J
66
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
kW
7.5
1500
110 dB
5.5
4.0
1000
105
3.0
800
2.2
600
100
1.5
500
1.1
400
95
0.75
1/min
1400
W
24
1300
22
1200
20
1100
19
1000
17
900
15
800
14
700
12
600
10
500
8
400
7
300
5
250
4
300
90
0.37
P
r
200
80
0.09
70
SX
2000
qV
3000
0.6
0.8
1.4
v2
pd2
32
1
2
2
8000 10000
2
3
4
∆LWrel4(A)
Speed
1/min
1100
700
400
1100
700
400
1100
700
400
4000 5000 6000
N
50
Duty
point
SX
SX
SX
qV opt
qV opt
qV opt
DX
DX
DX
75
Normal operation area
DX
pF
60
A7
65
4
6
5
8 10
15000
3
6
7
20
8
4
5
9 10
40
20000
60
6
63
125
250
3
3
2
2
2
2
2
2
2
2
4
9
0
2
6
-5
-4
2
3
6
1
0
3
0
-4
0
-3
3
-3
-1
1
-3
0
-2
-5
-1
-6
-6
-5
-5
-6
-6
-4
-6
-6
-9
-8
-9
-9
-8
-8
-8
-7
-8
-11
-12
-13
-11
-11
-12
-9
-10
-10
-15
-17
-18
-14
-15
-16
-13
-13
-14
8
200
40000
m³/h
m³/s Measured in
9 10
20
80 100
500 1000 2000 4000 8000
-6
-3
-3
-5
-2
-3
-6
-2
-3
7
14
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
dB
30000
30
400
Pb
80
LW
100
85
0.18
AT TIC
150
installation B
40 m/s according to ISO 5801:
600 8001000 Pa
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
Hz
63
125
250
dB
dB
dB
dB
dB
dB
dB
dB
dB
8
11
14
5
8
11
11
2
7
9
11
4
6
8
3
3
4
1
7
0
1
5
0
1
1
-2
2
500 1000 2000 4000 8000
-3
-1
-1
-2
-1
-2
-2
0
-1
-4
-4
-3
-4
-5
-4
-4
-4
-4
-6
-6
-6
-7
-7
-7
-7
-6
-7
-9
-9
-11
-9
-9
-11
-11
-9
-10
-13
-15
-18
-12
-14
-17
-17
-12
-16
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
Belt Driven Centrifugal Fans / AT / Technical Data
AT 22/15
905
13 × 18
225 225
514
554
590
908
401
1041
=
573
695
65
1058
918
ø11
ø35
554
590
398
38
=
10
300 300
688
728
764
96
8
38
782
514
52
Dimensions in mm, subject to change.
AT TIC-22/15 73 kg
=
707
847
=
58
33
Belt Driven Centrifugal Fans / AT / Technical Data
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
AT 22/22
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
Dr
z
J
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
566 mm
48
1.729 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N do not use in this area
m
r1
26 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
kW
64
50
30
69
67
22
62
15
57
2500
Pa
2000
%
ηr
34
11
1500
7.5
110 dB
5.5
1000
4.0
800
105
3.0
600
2.2
500
100
1.5
400
19
1000
17
900
15
800
14
700
12
10
500
9
85
400
7
100
350
6
0.12
80
300
5
70
250
4
A7
Normal operation area
75
50
3000
qV
4000 5000 6000
0.8
pd2
8000 10000
2
1
2
v2
3
4
2
∆LWrel4(A)
Speed
1/min
1100
700
400
1100
700
400
1100
700
400
4
6
N
DX
60
65
LW
SX
60
15000
3
5
8 10
6
4
7
8
20
40
20000
5
6
9 10
60
30000
7
8
63
125
250
3
3
2
3
3
2
3
3
2
3
6
13
1
4
13
-1
1
8
3
9
6
2
9
6
0
5
-1
5
1
1
5
1
1
3
-4
-2
500 1000 2000 4000 8000
-4
-4
-5
-4
-3
-4
-7
-4
-4
-9
-9
-6
-8
-8
-6
-6
-6
-5
-13
-10
-9
-13
-10
-8
-8
-7
-8
-14
-13
-13
-14
-13
-13
-10
-10
-11
-17
-18
-22
-17
-18
-21
-13
-14
-17
14
20
m³/s
30
200
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
dB
60000 m³/h
9 10
14
80 100
40000
Pb
P
r
0.25
AT TIC
150
pF
20
1100
90
200
34
1200
600
95
0.75
0.55
Duty
point
SX
SX
SX
qV opt
qV opt
qV opt
DX
DX
DX
W
22
1.1
300
80
1/min
1300
400
m/s
Measured in installation B
according to ISO 5801:
600 800 Pa
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
Hz
63
125
250
dB
dB
dB
dB
dB
dB
dB
dB
dB
7
12
18
5
10
17
3
6
12
9
14
9
7
13
9
5
10
3
9
4
3
9
4
3
7
0
1
500 1000 2000 4000 8000
-1
-2
-3
-1
-1
-3
-2
-1
-2
-8
-7
-5
-7
-7
-5
-3
-4
-3
-11
-8
-7
-11
-9
-7
-6
-5
-6
-12
-11
-12
-12
-11
-12
-8
-9
-10
-16
-17
-22
-16
-17
-22
-12
-14
-18
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
Belt Driven Centrifugal Fans / AT / Technical Data
AT 22/22
905
13 × 18
300 300
692
732
768
908
401
1041
=
573
695
65
1058
918
ø11
ø35
732
768
398
38
=
10
300 300
688
728
764
96
8
38
960
692
52
Dimensions in mm, subject to change.
AT TIC-22/22 82.5 kg
=
707
847
=
58
35
Belt Driven Centrifugal Fans / AT / Technical Data
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
AT 25/20
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
Dr
z
J
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
636 mm
56
2.475 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N do not use in this area
m
r1
29 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
47
66
71
40
15
30
66
22
54
kW
57
%
ηr
2500
Pa
2000
11
1500
7.5
5.5
1000
105 dB
4.0
800
2.2
500
100
1.5
400
900
19
800
17
700
15
600
13
500
11
400
8
350
7
300
6
250
5
200
4
90
200
85
0.25
80
100
0.12
75
2000
3000
v2
1.4
2
∆LWrel4(A)
Duty Speed
point 1/min
SX
900
SX
600
SX
300
qV opt 900
qV opt 600
qV opt 300
900
DX
DX
600
DX
300
3
4
15000
3
4
6
N
8000 10000
2
2
0.8 1
pd2
70
DX
4000 5000 6000
1
qV
LW
Normal operation area
SX
50
A7
65
5
8 10
4
6
7
20
20000
5
8
40
30000
6
7
9 10
60
63
125
250
4
3
2
2
2
1
3
2
2
5
7
13
2
4
10
-2
-1
4
8
9
4
5
7
3
0
1
-1
2
1
0
1
-1
1
-2
-4
0
500 1000 2000 4000 8000
-4
-4
-3
-5
-2
-3
-6
-3
-3
-7
-7
-6
-5
-7
-6
-4
-5
-5
-11
-10
-8
-10
-9
-9
-8
-8
-8
-14
-12
-13
-13
-12
-14
-10
-11
-12
-15
-17
-21
-16
-17
-21
-14
-15
-18
9 10
14
200
m³/h
14
20
80 100
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
dB
8
40000 50000
m³/s Measured in
30
400
Pb
60
60
AT TIC
P
r
150
pF
21
0.75
0.55
36
1000
95
1.1
300
40
W
23
3.0
600
80
1/min
1100
installation B
m/s according to ISO 5801:
600 Pa
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
Hz
63
125
250
dB
dB
dB
dB
dB
dB
dB
dB
dB
10
14
17
6
9
14
2
5
8
14
13
8
10
11
5
5
5
3
6
4
2
4
2
2
2
0
2
500 1000 2000 4000 8000
-1
-2
-1
-3
-2
-2
-2
0
-1
-5
-5
-4
-4
-6
-5
-2
-4
-4
-9
-8
-6
-9
-8
-7
-6
-6
-7
-11
-10
-11
-11
-11
-13
-9
-10
-12
-13
-15
-22
-15
-17
-23
-13
-15
-20
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
Belt Driven Centrifugal Fans / AT / Technical Data
AT 25/20
1010
13 × 18
300 300
664
704
740
1013
441
1175
=
652
797
65
1192
1052
ø11
ø40
704
740
438
38
=
12
350 350
790
830
866
95
8
43
930
664
52
Dimensions in mm, subject to change.
AT TIC-25/20 93 kg
=
812
952
=
58
37
Belt Driven Centrifugal Fans / AT / Technical Data
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
AT 25/25
Dr
z
J
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
636 mm
56
2.753 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N do not use in this area
m
r1
33 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
kW
65
30
39
47
57
%
69
65
ηr
2500
Pa
2000
54
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
22
15
11
1500
7.5
1000
5.5
800
105 dB
4.0
3.0
600
100
2.2
500
400
1.5
95
1.1
300
0.75
90
1/min
1000
W
21
900
19
800
17
750
16
700
15
650
14
600
13
550
12
500
11
450
9
400
8
350
7
300
6
250
5
200
4
0.55
P
r
200
85
150
0.25
100
80
40
3000
qV
0.8
v2
4000 5000 6000
8000 10000
1
2
2
1.4
0.8 1
pd2
2
∆LWrel4(A)
Duty Speed
point 1/min
SX
800
SX
500
SX
300
qV opt 800
qV opt 500
qV opt 300
800
DX
DX
500
DX
300
3
4
3
4
6
15000
4
5
8 10
6
7
20
20000
30000
5
6
8
9 10
40
7
60
8
63
125
250
80 100
3
2
2
3
2
2
2
2
2
5
8
12
4
7
12
3
4
5
7
8
3
6
7
3
3
2
1
3
-2
0
2
-2
0
-1
-5
-2
-5
-3
-4
-5
-3
-4
-5
-4
-4
-7
-7
-5
-7
-7
-5
-6
-6
-5
-10
-7
-9
-10
-7
-8
-7
-7
-8
-11
-13
-15
-11
-13
-15
-9
-10
-11
-17
-19
-21
-17
-19
-21
-13
-15
-18
m³/h
20 m³/s Measured in
14
500 1000 2000 4000 8000
60000
9 10
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
dB
40000
Pb
DX
SX
N
pF
50
38
Normal operation area
75
70
AT TIC
65
60
LW
A7
80 0.12
20
200
30
400
600
installation B
m/s according to ISO 5801:
Pa
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
Hz
63
125
250
dB
dB
dB
dB
dB
dB
dB
dB
dB
9
14
17
8
12
16
6
9
10
12
12
6
11
11
7
8
6
4
6
1
1
6
2
2
3
-1
1
500 1000 2000 4000 8000
-3
-3
-3
-2
-2
-2
-2
-1
-2
-7
-6
-3
-5
-6
-3
-4
-4
-3
-8
-6
-7
-8
-6
-7
-6
-5
-7
-10
-11
-14
-10
-11
-14
-8
-10
-12
-16
-19
-23
-16
-19
-23
-13
-15
-21
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
Belt Driven Centrifugal Fans / AT / Technical Data
AT 25/25
1010
13 × 18
350 350
794
834
870
1013
441
1175
=
652
797
65
1192
1052
ø11
ø40
834
870
438
38
=
12
350 350
790
830
866
95
8
43
1060
794
52
Dimensions in mm, subject to change.
AT TIC-25/25 105 kg
=
812
952
=
58
39
Belt Driven Centrifugal Fans / AT / Technical Data
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
AT 28/20
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
Dr
z
J
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
710 mm
56
3.204 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N do not use in this area
m
r1
31 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
2500
Pa
2000
kW
11
58
72
68
18.5
46
60
%
50
1500
68
ηr
30
7.5
1000
105 dB
4.0
600
100
3.0
500
2.2
400
95
1.5
300
1.1
90
0.75
200
0.55
17
700
15
600
13
550
12
500
10
450
9
400
8
350
7
300
6
250
5
200
4
P
r
0.37
80
100
60
Normal operation area
70
LW
N
DX
SX
75
3000 4000 5000 6000
8000 10000
0.9 1
qV
2
2
v2
pd2
2
3
3
∆LWrel4(A)
Duty Speed
point 1/min
SX
700
SX
450
SX
250
qV opt 700
qV opt 450
qV opt 250
700
DX
DX
450
DX
250
4
3
4
6
15000
5
8 10
20000
4
6
5
7
8
20
30000
6
7
9 10
60
40
8
40000
9 10
14
63
125
250
80 100
3
3
2
2
2
2
2
1
1
5
8
8
1
5
8
3
3
0
7
4
5
5
3
3
1
-3
-2
0
2
2
-1
1
2
-5
-4
-2
500 1000 2000 4000 8000
-1
-2
-5
-2
-2
-5
-4
-4
-4
-8
-8
-5
-7
-8
-5
-7
-6
-4
-11
-9
-9
-10
-8
-8
-6
-7
-8
-12
-12
-15
-11
-12
-14
-9
-11
-11
-17
-19
-22
-15
-18
-21
-12
-13
-16
14
m³/h
20
20
400
m³/s
m/s
30
200
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
dB
60000
Pb
65
AT TIC
80
A7
0.18
pF
800
85
150
40
W
19
5.5
800
50
1/min
900
Measured in installation B
according to ISO 5801:
600 800 Pa
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
Hz
63
125
250
dB
dB
dB
dB
dB
dB
dB
dB
dB
11
15
13
6
10
12
6
8
4
12
8
8
10
7
7
6
1
1
4
5
4
2
3
3
-1
-1
0
500 1000 2000 4000 8000
1
0
-3
0
-1
-3
-1
-2
-3
-6
-6
-3
-6
-6
-4
-5
-4
-3
-8
-7
-6
-8
-7
-6
-5
-6
-8
-10
-10
-14
-9
-10
-14
-8
-10
-12
-15
-18
-24
-14
-18
-24
-12
-14
-19
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
Belt Driven Centrifugal Fans / AT / Technical Data
AT 28/20
1118
17 × 22
300 300
676
716
752
1121
488
1294
=
718
870
90
1311
1171
ø11
ø40
726
772
485
38
=
12
400 400
863
903
939
134
8
43
1040
676
52
Dimensions in mm, subject to change.
AT TIC-28/20 120 kg
=
920
1060
=
58
41
Belt Driven Centrifugal Fans / AT / Technical Data
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
AT 28/28
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
Dr
z
J
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
710 mm
56
3.867 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N do not use in this area
m
r1
35 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
%
54
42
30
48
kW
1500
57
2000
66
69
65
ηr
2500
Pa
18.5
15
11
1000
1/min
900
W
19
800
17
700
15
600
13
550
12
500
11
450
10
400
8
350
7
300
6
250
5
200
4
105 dB
800
7.5
5.5
600
100
4.0
500
3.0
400
95
2.2
300
1.5
90
1.1
200
0.75
70
Normal operation area
50
5000 6000
8000 10000
1.4
qV
v2
N
60
2
3
3
4
42
4
4
6
∆LWrel4(A)
Duty Speed
point 1/min
SX
600
SX
400
SX
250
qV opt 600
qV opt 400
qV opt 250
600
DX
DX
400
DX
250
15000
3
2
pd2
DX
75
SX
pF
80
5
8 10
20000
5
6
6
7
20
8
40
30000
7
8
9 10
9 10
60
40000
60000
14
14
80 100
20
20
200
63
125
250
3
2
2
2
2
1
2
2
1
9
14
12
7
11
8
7
8
4
10
2
3
8
0
3
5
-1
1
-1
1
2
-1
1
1
-2
-1
-3
500 1000 2000 4000 8000
-3
-3
-4
-2
-3
-4
-5
-5
-4
-9
-7
-6
-8
-6
-5
-7
-5
-5
-11
-9
-9
-9
-8
-9
-7
-7
-8
-13
-14
-15
-12
-12
-14
-10
-10
-11
-19
-18
-19
-16
-18
-19
-13
-14
-17
30
400
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
dB
80000 100000
Pb
80
65
WA
7
0.37
L
r
P
100
85
0.55
AT TIC
150
m³/h
30
m³/s
40
m/s
600 800 1000
Measured in installation B
according to ISO 5801:
Pa
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
Hz
63
125
250
dB
dB
dB
dB
dB
dB
dB
dB
dB
13
18
16
11
15
12
11
12
7
14
5
6
11
3
6
9
2
4
2
3
3
2
3
3
2
2
0
500 1000 2000 4000 8000
-1
-1
-2
-1
-1
-2
-2
-3
-2
-7
-5
-4
-6
-5
-4
-5
-4
-3
-9
-8
-8
-8
-7
-8
-6
-6
-7
-12
-13
-15
-11
-12
-14
-9
-10
-12
-18
-19
-22
-16
-19
-22
-13
-16
-20
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
Belt Driven Centrifugal Fans / AT / Technical Data
AT 28/28
1118
17 × 22
400 400
870
910
946
1121
488
1294
=
718
870
90
1311
1171
ø11
ø40
920
966
485
38
=
12
400 400
863
903
939
136
8
43
1238
870
52
Dimensions in mm, subject to change.
AT TIC-28/28 127 kg
=
920
1060
=
58
43
Belt Driven Centrifugal Fans / AT / Technical Data
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
AT 30/20
Dr
z
J
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
762 mm
64
4.378 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N do not use in this area
m
r1
34 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
15
1500
1/min
W
900
19
800
17
700
15
600
13
550
12
500
11
450
10
400
8
350
7
300
6
250
5
200
4
150
3
47
73
69
62
kW
18.5
52
2000
%
30
69
ηr
2500
Pa
59
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
11
7.5
1000
105 dB
5.5
800
4.0
600
100
3.0
500
2.2
400
95
1.5
300
1.1
90
0.75
200
0.55
P
r
85
150
80
0.25
100
80
2
15000
3
4
20000
30000
5
6
7
8
9 10
8
40000
60000
80000 100000 m³/h
20
9 10
Measured in
30 m³/s installation B
according to
2
2
3
4
∆LWrel4(A)
Duty Speed
point 1/min
SX
600
SX
400
SX
250
qV opt 600
qV opt 400
qV opt 250
600
DX
DX
400
DX
250
DX
8000 10000
1
1
pd2
44
N
4000 5000 6000
1.4
v2
70
Pb
65
Normal operation area
SX
pF
40
3000
qV
A7
LW
60
50
AT TIC
60
75
0.12
4
6
5
8 10
6
7
20
40
60
14
20
80 100
200
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
dB
63
125
250
3
3
2
2
2
2
2
2
1
6
9
11
7
8
9
8
8
2
7
6
7
6
4
5
3
-2
-1
2
3
2
1
2
2
-3
-3
-2
500 1000 2000 4000 8000
-2
-3
-6
-2
-3
-5
-4
-4
-5
-10
-9
-6
-8
-8
-6
-7
-6
-5
-11
-9
-8
-10
-9
-8
-7
-7
-8
-12
-13
-15
-12
-12
-13
-10
-10
-10
-18
-20
-21
-16
-18
-20
-12
-13
-15
30
400
50 m/s ISO 5801:
40
600 800 1000
Pa
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
Hz
63
125
250
dB
dB
dB
dB
dB
dB
dB
dB
dB
12
15
16
12
14
13
13
13
7
13
10
10
11
9
8
8
3
3
6
5
4
5
4
3
2
0
1
500 1000 2000 4000 8000
0
-1
-4
-1
-2
-4
-2
-2
-3
-8
-6
-4
-7
-7
-4
-5
-4
-3
-9
-7
-6
-9
-7
-6
-5
-6
-7
-10
-11
-14
-10
-11
-13
-9
-10
-11
-16
-20
-23
-16
-19
-23
-12
-14
-18
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
Belt Driven Centrifugal Fans / AT / Technical Data
AT 30/20
1196
17 × 22
300 300
676
716
752
1200
520
1393
=
776
936
90
1410
1270
ø11
ø40
726
772
516
38
=
12
425 425
929
969
1005
134
8
43
1040
676
52
Dimensions in mm, subject to change.
AT TIC-30/20 131 kg
=
998
1138
=
58
45
Belt Driven Centrifugal Fans / AT / Technical Data
Performance certified is for installation type B - free inlet, ducted outlet.
Power rating (kW) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
AT 30/28
Technical Data
Impeller Data
Impeller diameter
Number of blades
Moment of Inertia
Dr
z
J
Impeller Data
Impeller weight
Density of media
Tolerance class (DIN 24166)
762 mm
64
5.07 kgm²
Performance Curves
Please note coloured area!
N all types suitable
N do not use in this area
m
r1
40 kg
1.2 kg/m³
2
Nicotra Gebhardt S.p.A certifies that the fan shown herein is licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance with AMCA
Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.
The AMCA Certified Ratings Seal applies to air performance ratings only.
1/min
58
68
15
1500
W
45
71
68
30
61
51
kW
18.5
%
ηr
2500
Pa
2000
11
110 dB
900
19
800
17
700
15
600
13
550
12
500
11
450
9
400
8
350
7
300
6
250
5
200
4
150
3
7.5
1000
5.5
800
105
4.0
600
3.0
500
100
2.2
400
95
1.5
300
1.1
90
0.75
200
0.55
150
85
P
r
0.37
80
100
65
60
70
4000 5000 6000
2
1
v2
3
3
2
4
2
∆LWrel4(A)
46
DX
15000
20000
4
5
30000
6
7
8
40000
60000
9 10
80000 100000 m³/h
20
Measured in
30 m³/s installation B
according to
1.4
0.8 1
pd2
Duty Speed
point 1/min
SX
600
SX
400
SX
250
qV opt 600
qV opt 400
qV opt 250
600
DX
DX
400
DX
250
8000 10000
N
40
3000
qV
Normal operation area
SX
pF
50
Pb
75
60
AT TIC
LW
A7
0.18
80
4
6
5
6
8 10
7
20
8
40
9 10
60
14
80 100
Relative sound power level for inlet side LWrel7 at octave
centre frequencies fc
dB
63
125
250
3
2
2
3
2
2
3
2
2
9
14
14
8
12
13
9
11
8
11
5
2
10
4
2
8
2
1
-2
-2
0
-2
-1
0
-2
-2
-2
500 1000 2000 4000 8000
-5
-3
-2
-4
-3
-3
-5
-4
-3
-7
-6
-6
-7
-6
-6
-7
-6
-5
-11
-9
-9
-10
-9
-9
-8
-8
-8
-13
-13
-15
-12
-12
-14
-11
-10
-10
-19
-19
-21
-17
-18
-20
-13
-14
-17
20
200
m/s ISO 5801:
30
400
600 800
Pa
Relative sound power level for discharge side LWrel4 at
octave centre frequencies fc
Hz
63
125
250
dB
dB
dB
dB
dB
dB
dB
dB
dB
14
18
18
12
16
17
13
15
12
15
9
5
14
8
5
12
5
4
1
0
1
1
1
2
2
2
1
500 1000 2000 4000 8000
-4
-1
0
-2
-1
-1
-2
-2
-1
-5
-5
-5
-5
-5
-5
-5
-4
-4
-9
-8
-8
-9
-7
-7
-7
-6
-7
-12
-12
-15
-11
-11
-14
-9
-10
-11
-18
-20
-24
-16
-19
-23
-13
-15
-20
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
Belt Driven Centrifugal Fans / AT / Technical Data
AT 30/28
1196
17 × 22
400 400
870
910
946
1200
520
1393
=
776
936
90
1410
1270
ø11
ø40
920
966
516
38
=
12
425 425
929
969
1005
136
8
43
1238
870
52
Dimensions in mm, subject to change.
AT TIC-30/28 138 kg
=
998
1138
=
58
47
Belt Driven Centrifugal Fans / AT / Twin fan arrangement
AT G2L
E
A1
G1
G
X1
172
S
X2
X4
B
B1
C
F
Q
E
A
R
K
X3
V
AT G2L 07/07-18/18
AT G2L 12/09-18/18
t
ød
ø9
B2
t1
t1
AT G2L 07/07-10/10
6
F2
P
L
ød
w
w
z
E2
z
A2
C2
E2
AT G2L 07/07-18/18
A
B
7/7
316
325
9/7
380
387
9/9
380
387
10/8
425
443
10/10
425
443
12/09
491
521
12/12
491
521
15/11
569
609
15/15
569
609
18/13
684
739
18/18
684
739
C
208
262
262
289
289
341
341
404
404
478
478
E
232
232
298
265
331
309
395
373
471
430
557
F
186
215
215
249
249
294
294
342
342
415
415
G
153
185
185
203
203
230
230
264
264
314
314
H
184
184
244
214
264
244
324
294
384
343
458
L
698
698
890
794
976
912
1164
1190
1376
1253
1622
M
808
808
1000
904
1086
1082
1334
1260
1546
1423
1792
P
258
258
324
291
357
335
425
399
497
456
583
Q
203
253
253
287
287
332
332
380
380
457
457
R
169
199
199
227
227
266
266
309
309
376
376
7/7
9/7
9/9
10/8
10/10
12/09
12/12
15/11
15/15
18/13
18/18
S
145
177
177
198
198
232
232
272
272
340
340
V
147
179
179
197
197
224
224
258
258
307
307
K
225
300
300
340
340
408
408
495
495
608
608
X1
117
119
119
136
136
161
161
197
197
262
262
X2
86
124
124
132
132
153
153
211
211
283
283
X3
88
123
123
135
135
161
161
201
201
278
278
X4
47
120
120
132
132
153
153
200
200
288
288
U×S
11×16
11×16
11×16
11×16
11×16
11×16
11×16
11×16
11×16
11×16
11×16
t
–
–
–
–
–
8
8
8
8
8
8
t1
19
19
19
19
19
28
28
28
28
28
28
w
60
60
60
60
60
90
90
90
90
90
90
z
65
65
65
73
73
105
105
105
105
110
110
7/7
9/7
9/9
10/8
10/10
12/09
12/12
15/11
15/15
18/13
18/18
A1
319
383
383
428
428
494
494
572
572
687
687
B1
350
412
412
469
469
546
546
634
634
764
764
G1
156
188
188
206
206
233
233
267
267
317
317
A2
232
232
298
265
331
309
395
373
471
430
557
B2
201
255
255
284
284
334
334
397
397
471
471
C2
288
288
354
321
387
365
451
429
527
486
316
D2
257
311
311
340
340
390
390
453
453
527
527
E2
131.0
131.0
164.0
147.5
180.5
169.5
212.5
201.5
250.5
230.0
293.5
F2
115.5
142.5
142.5
157.0
157.0
182.0
182.0
213.5
213.5
250.5
250.5
48
28
224
F2
P
U×S
D2
M
H
17
Dimensions in mm, subject to change.
AT G2L 07/07-18/18
d
20
20
20
20
20
25
25
25
25
25
25
Belt Driven Centrifugal Fans / AT / Twin fan arrangement
AT SC2
Dimensions in mm, subject to change.
AT SC2 7/7-18/18
E
H
K
G
H1
G1
S
M
Q
E
B
X2
B1
C
F
=
R
X1
A
=
AT SC2 7/7-18/18
t1
AT SC2 7/7-18/18
t
ø9
B2
F2
ød
w
E2
z
AT SC2 7/7-18/18
A
7/7
285
9/7
349
9/9
349
10/8
395
10/10
395
12/9
461
12/12
461
15/11
539
15/15
539
18/13
654
18/18
654
28
F2
=
P
224
D2
=
V
L
P
172
U×S
A2
C2
B
337
399
399
455
455
533
533
621
621
751
751
C
208
262
262
289
289
341
341
404
404
477
477
E
232
232
298
265
331
309
395
373
471
430
557
F
186
215
215
249
249
294
294
342
342
415
415
G
153
185
185
203
203
230
230
264
264
314
314
H
321
385
385
431
431
497
497
575
575
690
690
L
686
684
872
773
957
913
1165
1094
1384
1262
1647
M
843
843
1033
950
1134
1066
1316
1243
1537
1425
1805
P
254
254
320
287
353
339
425
403
501
470
597
Q
182
180
236
203
255
239
319
292
386
326
457
z
75.5
76.5
77.5
85.5
85.5
79.5
78.5
77.5
79.5
84.5
82.0
d
20
20
20
20
20
25
25
25
25
25
25
7/7
9/7
9/9
10/8
10/10
12/9
12/12
15/11
15/15
18/13
18/18
S
6
6
6
6
6
6
6
6
6
6
6
V
160
158
214
181
233
209
289
262
356
286
417
K
78.5
79.5
80.5
88.5
88.5
76.5
75.5
74.5
76.5
81.5
79.0
X1
210
274
274
330
330
371
371
449
449
544
544
X2
262
324
324
390
390
443
443
531
531
641
641
U×S
9×12
9×12
9×12
9×12
9×12
11×16
11×16
11×16
11×16
11×16
11×16
t
6
6
6
6
6
8
8
8
8
8
8
t1
23
23
23
23
23
28
28
28
28
28
28
w
60
60
60
60
60
65
65
65
65
65
65
7/7
9/7
9/9
10/8
10/10
12/9
12/12
15/11
15/15
18/13
18/18
B1
350
418
418
475
475
552
552
640
640
770
770
G1
156
188
188
206
206
233
233
267
267
317
317
H1
324
388
388
434
434
500
500
578
578
693
693
A2
232
232
298
265
331
309
395
373
471
430
557
B2
201
255
255
284
284
334
334
397
397
471
471
C2
288
288
354
321
387
365
451
429
527
486
613
D2
257
311
311
340
340
390
390
453
453
527
527
E2
131.0
131.0
164.0
147.5
180.5
169.5
212.5
201.5
250.5
230.0
293.5
F2
115.5
142.5
142.5
157.0
157.0
182.0
182.0
213.5
213.5
250.5
250.5
E2
R
20
20
20
20
20
28
28
28
28
38
38
49
Belt Driven Centrifugal Fans / AT / Twin fan arrangement
AT G2C
Dimensions in mm, subject to change.
AT G2C 09/07-18/18
E
H
K
G
S
M
Q
E
H1
G1
B
X2
B1
C
F
=
R
=
X1
A
V
AT G2C 09/07-18/18
t1
AT G2C 09/07-18/18
t
=
F2
ø9
B2
F2
ød
w
E2
A2
E2
C2
z
AT G2C 09/07-18/18
A
B
9/7
347
423
9/9
347
423
10/8
393
479
10/10
393
479
12/09
457
580
12/12
457
580
15/11
533
667
15/15
533
667
18/13
646
797
18/18
646
797
C
262
262
289
289
341
341
404
404
478
478
E
232
298
265
331
309
395
373
471
430
557
F
215
215
249
249
294
294
342
342
415
415
G
185
185
203
203
230
230
264
264
314
314
H
385
385
431
431
497
497
575
575
690
690
L
704
896
800
982
938
1190
1116
1402
1299
1668
M
864
1056
960
1142
1158
1410
1336
1622
1519
1888
P
678
870
774
956
902
1154
1080
1366
1253
1622
Q
184
244
214
264
244
324
294
384
343
458
9/7
9/9
10/8
10/10
12/09
12/12
15/11
15/15
18/13
18/18
S
31
31
31
31
52
52
52
52
52
52
V
38
38
38
38
40
40
42
42
44
44
K
80
80
80
80
110
110
110
110
110
110
X1
257
257
289
289
327
327
403
403
506
506
X2
333
333
375
375
450
450
537
537
657
657
t
8
8
8
8
10
10
10
10
12
12
t1
33
33
33
33
38
38
38
38
43
43
w
55
55
55
55
90
90
90
90
90
90
z
60
60
60
60
91
91
91
91
97
97
d
30
30
30
30
35
35
35
35
40
40
u×s
13x18
13x18
13x18
13x18
13x18
13x18
13x18
13x18
17x22
17x22
9/7
9/9
10/8
10/10
12/09
12/12
15/11
15/15
18/13
18/18
B1
418
418
475
475
553
553
640
640
770
770
G1
188
188
206
206
233
233
267
267
317
317
H1
388
388
434
434
500
500
578
578
693
693
A2
232
298
265
331
309
395
373
471
430
557
B2
255
255
284
284
334
334
397
397
471
471
C2
288
354
321
387
365
451
429
527
486
613
D2
311
311
340
340
390
390
453
453
527
527
E2
131.0
164.0
147.5
180.5
169.5
212.5
201.5
250.5
230.0
293.5
F2
142.5
142.5
157.0
157.0
182.0
182.0
213.5
213.5
250.5
250.5
50
D2
U×S
P
L
224
=
172
R
28
28
28
28
38
38
38
38
48
48
28
Belt Driven Centrifugal Fans / AT / Twin fan arrangement
AT G2C
Dimensions in mm, subject to change.
AT G2C 20/15-30/28
E
H
K
G
S
M
Q
E
H1
G1
B
X2
B1
C
F
=
R
=
38
=
X1
A
V
AT G2C 20/15-30/28
t1
AT G2C 20/15-30/28
t
=
ø11
H2
B2
F2
D2
U×S
P
L
H2
ød
w
G2
z
AT G2C 20/15-30/28
A
B
20/15
772
967
20/20
772
967
22/15
847
1058
22/22
847
1058
25/20
952
1192
25/25
952
1192
28/20
1060
1311
28/28
1060
1311
30/20
1138
1410
30/28
1138
1410
A2
E2
C2
G2
C
629
629
695
695
797
797
870
870
936
936
E
502
630
514
692
664
794
676
870
676
870
F
520
520
573
573
652
652
718
718
776
776
G
369
369
398
398
438
438
485
485
516
516
H
830
830
905
905
1010
1010
1118
1118
1196
1196
L
1470
1866
1470
2050
1934
2240
1958
2550
1958
2550
M
1730
2126
1730
2310
2194
2500
2220
2810
2220
2810
P
1424
1820
1424
2004
1888
2194
1912
2504
1912
2504
Q
370
510
346
570
510
556
510
714
510
714
20/15
20/20
22/15
22/22
25/20
25/25
28/20
28/28
30/20
30/28
S
52
52
52
52
52
52
52
52
52
52
V
58
58
58
58
58
58
58
58
58
58
K
130
130
130
130
130
130
131
130
131
130
X1
632
632
707
707
812
812
920
920
998
998
X2
827
827
918
918
1052
1052
1171
1171
1270
1270
U×S
17×22
17×22
17×22
17×22
17×22
17×22
17×22
17×22
17×22
17×22
t
12
12
12
12
12
12
12
12
12
12
t1
43
43
43
43
43
43
43
43
43
43
w
90
90
90
90
90
90
90
90
90
90
z
117
117
117
117
117
117
118
117
118
117
d
40
40
40
40
40
40
40
40
40
40
20/15
20/20
22/15
22/22
25/20
25/25
28/20
28/28
30/20
30/28
B1
950
950
1041
1041
1175
1175
1293
1293
1393
1393
G1
372
372
401
401
441
441
488
488
520
520
H1
833
833
908
908
1013
1013
1121
1121
1200
1200
A2
502
630
514
692
664
794
676
870
676
870
B2
622
622
688
688
790
790
863
863
929
929
C2
578
706
590
768
740
870
752
946
752
946
D2
698
698
764
764
866
866
939
939
1005
1005
E2
542
670
554
732
704
834
716
910
716
910
F2
662
662
728
728
830
830
903
903
969
969
G2
200
275
225
300
300
350
300
400
300
400
H2
275
275
300
300
350
350
400
400
425
425
R
48
48
48
48
48
48
48
48
48
48
51
Belt Driven Centrifugal Fans / AT / Twin fan arrangement
AT G2C-C2
Dimensions in mm, subject to change.
AT G2C-C2 20/15-30/28
E
H
K
G
S
M
Q
E
H1
G1
B
X2
C
B1
F
=
R
=
38
=
X1
A
V
AT G2C-C2 20/15-30/28
ø11
t1
AT G2C-C2 20/15-30/28
t
=
H2
B2
F2
D2
U×S
P
L
H2
ød
w
G2
z
AT G2C-C2 20/15-30/28
A
B
20/15
772
967
20/20
772
967
22/15
847
1058
22/22
847
1058
25/20
952
1192
25/25
952
1192
28/20
1060
1311
28/28
1060
1311
30/20
1138
1410
30/28
1138
1410
A2
E2
C2
C
629
629
695
695
797
797
870
870
936
936
E
502
630
514
692
664
794
676
870
676
870
F
520
520
573
573
652
652
718
718
776
776
G
369
369
398
398
438
438
485
485
516
516
H
830
830
905
905
1010
1010
1118
1118
1196
1196
L
1470
1866
1470
2050
1934
2240
1958
2550
1958
2550
M
1816
2212
1816
2396
2280
2586
2304
2896
2304
2896
P
1424
1820
1424
2004
1888
2194
1912
2504
1912
2504
Q
370
510
346
570
510
556
510
714
510
714
20/15
20/20
22/15
22/22
25/20
25/25
28/20
28/28
30/20
30/28
S
52
52
52
52
52
52
52
52
52
52
V
58
58
58
58
58
58
58
58
58
58
K
173
173
173
173
173
173
173
173
173
173
X1
632
632
707
707
812
812
920
920
998
998
X2
827
827
918
918
1052
1052
1171
1171
1270
1270
U×S
17×22
17×22
17×22
17×22
17×22
17×22
17×22
17×22
17×22
17×22
t
14
14
14
14
14
14
14
14
14
14
t1
48
48
48
48
48
48
48
48
48
48
w
90
90
90
90
90
90
90
90
90
90
z
130
130
130
130
130
130
130
130
130
130
d
45
45
45
45
45
45
45
45
45
45
20/15
20/20
22/15
22/22
25/20
25/25
28/20
28/28
30/20
30/28
B1
950
950
1041
1041
1175
1175
1293
1293
1393
1393
G1
372
372
401
401
441
441
488
488
520
520
H1
833
833
908
908
1013
1013
1121
1121
1200
1200
A2
502
630
514
692
664
794
676
870
676
870
B2
622
622
688
688
790
790
863
863
929
929
C2
578
706
590
768
740
870
752
946
752
946
D2
698
698
764
764
866
866
939
939
1005
1005
E2
542
670
554
732
704
834
716
910
716
910
F2
662
662
728
728
830
830
903
903
969
969
G2
200
275
225
300
300
350
300
400
300
400
H2
275
275
300
300
350
350
400
400
425
425
52
G2
R
48
48
48
48
48
48
48
48
48
48
Belt Driven Centrifugal Fans / Notes
Notes
Notes
53
Belt Driven Centrifugal Fans / AT / Specifications
AT S 7/7-18/18
Specifications
High performance centrifugal fan AT S
Double width double inlet (DWDI) belt driven fan, with forward curved blades.
Lap-jointed scroll of galvanized steel EN 10142 assembled with roller-lock seaming.
Straight cut off plate at fan outlet.
Impeller with forward curved blades of galvanized steel EN 10142, statically and
dynamically balanced to grade G4, according to UNI ISO 1940.
Light construction, without side frames.
Single row, deep groove, self-aligning ball bearings, lubricated and sealed for life, with
eccentric collar locking. Bearings are mounted inside conductive rubber vibration
absorbers on bearing supporting spiders.
The mounting feet, which allow the fan to be installed in the 4 positions 0, 90, 180
and 270, as well as the outlet flange, are available on request.
For sizes from 7/7 to 10/10, in addition to the standard construction version with flats
on shaft ends (“type 1”), it is also available a version with keyways (“type 2”).
Shaft ends of larger sizes are only of “Type 2”.
Fan data
Fan type
. . . . . . . . . . . . . . . . . . . . . .
Volume flow
qV
. . . . . . . . . . . . . . . . . . . . . . . .
m³/h
Total pressure increase
pF
. . . . . . . . . . . . . . . . . . . . . . . .
Pa
Static pressure
psF
. . . . . . . . . . . . . . . . . . . . . . . .
Pa
Air density at fan inlet
r1
. . . . . . . . . . . . . . . . . . . . . . . .
kg/m³
Air medium temperature
t
. . . . . . . . . . . . . . . . . . . . . . . .
°C
Shaft power
Pa
. . . . . . . . . . . . . . . . . . . . . . . .
kW
Efficiency
(ha) . . . . . . . . . . . . . . . . . . . . . . . .
Speed
N
Sound power level (A weighted)
LWA . . . . . . . . . . . . . . . . . . . . . . . .
dB
Weight
m
kg
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
1/min
Fittings / Accessories
•
•
•
•
•
•
•
•
Mounting feet
Motor brackets (Pick-A-Back)
Discharge flange
Discharge flex with flexible sleeve
Inlet guards
Discharge guard
Shaft guard for free shaft end
Matching flange
Options may be available only for orders of a minimum quantity, to be previously
agreed
• Inspection door
• Drain plug
• Single or double thickness powder coating
• Shaft made of stainless steel
• Nuts and bolts and fastening elements made of stainless steel
• Aluminium inlet cone
• Copper inlet cone
54
Belt Driven Centrifugal Fans / AT / Specifications
AT SC 7/7-18/18
AT C 7/7-18/18
Specifications
High performance centrifugal fan AT SC and AT C
Double width double inlet (DWDI) belt driven fan, with forward curved blades.
Lap-jointed scroll of galvanized steel EN 10142 assembled through roller-lock
seaming.
Straight cut off plate at fan outlet.
Impeller with forward curved blades of galvanized steel EN 10142, statically and
dynamically balanced to grade G4, according to UNI ISO 1940.
Construction with two side frames, made of cold-formed galvanized steel angular
sections welded to the side plates, for a better strength and stiffness of the fan
structure.
Single row, deep groove, self-aligning ball bearings, lubricated and sealed for life, with
eccentric collar locking. Bearings are mounted inside conductive rubber vibration
absorbers on bearing supporting spiders.
It can be easily installed in four different positions.
Discharge flange on request.
Where an even better mechanical strength is required, e.g. when the fan itself is used
as a stiffening element of the base frame, a further reinforced version is available. It is
identified by the letter C.
This version is available in the same sizes as the SC version, with the same dimensions and the same performance limits. With the addition of three steel bars, welded
between three corners of the side frames, the frames of these fans are joined to form
a closed, box-like supporting structure.
For sizes from 7/7 to 10/10, in addition to the standard construction version with flats
on shaft ends (“type 1”), it is also available a version with keyways (“type 2”).
Shaft ends of larger sizes are only of “Type 2”.
Fan data
Fan type
. . . . . . . . . . . . . . . . . . . . . .
Volume flow
qV
. . . . . . . . . . . . . . . . . . . . . . . .
m³/h
Total pressure increase
p F
. . . . . . . . . . . . . . . . . . . . . . . .
Pa
Static pressure
psF
. . . . . . . . . . . . . . . . . . . . . . . .
Pa
Air density at fan inlet
r1
. . . . . . . . . . . . . . . . . . . . . . . .
kg/m³
Air medium temperature
t
. . . . . . . . . . . . . . . . . . . . . . . .
°C
Shaft power
Pa
. . . . . . . . . . . . . . . . . . . . . . . .
kW
Efficiency
(ha) . . . . . . . . . . . . . . . . . . . . . . . .
Speed
N
Sound power level (A weighted)
LWA . . . . . . . . . . . . . . . . . . . . . . . .
dB
Weight
m
kg
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
1/min
Fittings / Accessories
•
•
•
•
•
•
•
•
Mounting feet
Motor brackets (Pick-A-Back)
Discharge flange
Discharge flex with flexible sleeve
Inlet guards
Discharge guard
Shaft guard for free shaft end
Matching flange
Options may be available only for orders of a minimum quantity, to be previously
agreed
• Inspection door
• Drain plug
• Single or double thickness powder coating
• Shaft made of stainless steel
• Nuts and bolts and fastening elements made of stainless steel
• Aluminium inlet cone
• Copper inlet cone
55
Belt Driven Centrifugal Fans / AT / Specifications
AT AR 9/7-18/18
Specifications
High performance centrifugal fan AT AR
Double width double inlet (DWDI) belt driven fan, with forward curved blades.
Lap-jointed scroll of galvanized steel EN 10142 assembled with roller-lock seaming.
Straight cut off plate at fan outlet.
Impeller with forward curved blades of galvanized steel EN 10142, statically and
dynamically balanced to grade G4, according to UNI ISO 1940.
For applications requiring even higher installed power, or where there is a requirement
for re-lubricatable bearings, the AR version is the correct solution.
The reinforced side-frames are made of galvanized steel sections, welded to the sides
of the scroll and joined together in three corners.
Single row, deep groove, self-aligning ball bearings, re-lubricatable and reinforced,
with eccentric collar locking. Bearings are mounted inside a single-piece cast iron
pillow block.
It can be easily installed in four different positions.
Discharge flange on request.
Fan data
Fan type
. . . . . . . . . . . . . . . . . . . . . .
Volume flow
qV
. . . . . . . . . . . . . . . . . . . . . . . .
m³/h
Total pressure increase
pF
. . . . . . . . . . . . . . . . . . . . . . . .
Pa
Static pressure
psF
. . . . . . . . . . . . . . . . . . . . . . . .
Pa
Air density at fan inlet
r1
. . . . . . . . . . . . . . . . . . . . . . . .
kg/m³
Air medium temperature
t
. . . . . . . . . . . . . . . . . . . . . . . .
°C
Shaft power
Pa
. . . . . . . . . . . . . . . . . . . . . . . .
kW
Efficiency
(ha) . . . . . . . . . . . . . . . . . . . . . . . .
Speed
N
Sound power level (A weighted)
LWA . . . . . . . . . . . . . . . . . . . . . . . .
dB
Weight
m
kg
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
1/min
Fittings / Accessories
•
•
•
•
•
•
•
•
Mounting feet
Motor brackets (Pick-A-Back)
Discharge flange
Discharge flex with flexible sleeve
Inlet guards
Discharge guard
Shaft guard for free shaft end
Matching flange
Options may be available only for orders of a minimum quantity, to be previously
agreed
• Inspection door
• Drain plug
• Single or double thickness powder coating
• Shaft made of stainless steel
• Nuts and bolts and fastening elements made of stainless steel
• Aluminium inlet cone
• Copper inlet cone
56
Belt Driven Centrifugal Fans / AT / Specifications
AT TIC 20/15-30/28
Specifications
High performance centrifugal fan AT TIC
Double width double inlet (DWDI) belt driven fan, with forward curved blades.
Lap-jointed scroll of galvanized steel EN 10142 assembled with Pittsburgh lock seam.
Straight cut off plate at fan outlet.
Impeller with forward curved blades of galvanized steel EN 10142, statically and
dynamically balanced with grade G4, according to UNI ISO 1940.
Mechanically designed in a way very similar to the previous version, apart for the
larger sized impeller and a fourth traverse, so the frames on the sides are joined
together in all the four corners.
Single row, deep groove, self-aligning ball bearings, re-lubricatable and reinforced,
with eccentric collar locking. Bearings are mounted inside a single-piece cast iron
pillow block.
It can be easily installed in four different positions.
Discharge flange on request.
Fan data
Fan type
. . . . . . . . . . . . . . . . . . . . . .
Volume flow
qV
. . . . . . . . . . . . . . . . . . . . . . . .
m³/h
Total pressure increase
p F
. . . . . . . . . . . . . . . . . . . . . . . .
Pa
Static pressure
psF
. . . . . . . . . . . . . . . . . . . . . . . .
Pa
Air density at fan inlet
r1
. . . . . . . . . . . . . . . . . . . . . . . .
kg/m³
Air medium temperature
t
. . . . . . . . . . . . . . . . . . . . . . . .
°C
Shaft power
Pa
. . . . . . . . . . . . . . . . . . . . . . . .
kW
Efficiency
(ha) . . . . . . . . . . . . . . . . . . . . . . . .
Speed
N
Sound power level (A weighted)
LWA . . . . . . . . . . . . . . . . . . . . . . . .
dB
Weight
m
kg
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
1/min
Fittings / Accessories
•
•
•
•
•
•
•
Mounting feet
Motor brackets (Pick-A-Back)
Discharge flange
Discharge flex with flexible sleeve
Inlet guards
Discharge guard
Shaft guard for free shaft end
Options may be available only for orders of a minimum quantity, to be previously
agreed
• Matching flange
• Inspection door
• Drain plug
• Single or double thickness powder coating
• Shaft made of stainless steel
• Nuts and bolts and fastening elements made of stainless steel
• Aluminium inlet cone
• Copper inlet cone
57
Belt Driven Centrifugal Fans / AT / Specifications
AT G2L 7/7-18/18
Specifications
High performance centrifugal twin fan AT G2L
(size from 7/7 to 18/18)
Lap-jointed scroll of galvanized steel EN 10142 assembled with roller-lock seaming.
This twin version is made with two S version single fans, connected through three
U-section spars and is fitted with two double-inlet impellers mounted on a common
shaft, supported by three bearings.
Fan data
Fan type
. . . . . . . . . . . . . . . . . . . . . .
Volume flow
qV
. . . . . . . . . . . . . . . . . . . . . . . .
m³/h
Total pressure increase
pF
. . . . . . . . . . . . . . . . . . . . . . . .
Pa
Static pressure
psF
. . . . . . . . . . . . . . . . . . . . . . . .
Pa
Air density at fan inlet
r1
. . . . . . . . . . . . . . . . . . . . . . . .
kg/m³
Air medium temperature
t
. . . . . . . . . . . . . . . . . . . . . . . .
°C
Shaft power
Pa
. . . . . . . . . . . . . . . . . . . . . . . .
kW
Efficiency
(ha) . . . . . . . . . . . . . . . . . . . . . . . .
Speed
N
Sound power level (A weighted)
LWA . . . . . . . . . . . . . . . . . . . . . . . .
dB
Weight
m
kg
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
1/min
Fittings / Accessories
•
•
•
•
•
•
•
•
Mounting feet
Motor brackets (Pick-A-Back)
Discharge flange
Discharge flex with flexible sleeve
Inlet guards
Discharge guard
Shaft guard for free shaft end
Matching flange
Options may be available only for orders of a minimum quantity, to be previously
agreed
• Inspection door
• Drain plug
• Single or double thickness powder coating
• Shaft made of stainless steel
• Nuts and bolts and fastening elements made of stainless steel
• Aluminium inlet cone
• Copper inlet cone
58
Belt Driven Centrifugal Fans / AT / Specifications
AT SC2 7/7-18/18
Specifications
High performance centrifugal twin fan AT-SC2
(size from 7/7 to 18/18)
Lap-jointed scroll of galvanized steel EN 10142 assembled with roller-lock seaming.
Twin version, made of two SC version fans, joined by three L-section spars, welded in
the corners of the side frames.
Two double-inlet impellers are mounted on a single shaft, supported by three bearings
on rubber shock absorbers and inlet-mounted supporting spiders.
The SC2 fans have the same characteristics of the G2L versions but with the additional stiffness provided by the welded frame.
Fan data
Fan type
. . . . . . . . . . . . . . . . . . . . . .
Volume flow
qV
. . . . . . . . . . . . . . . . . . . . . . . .
m³/h
Total pressure increase
p F
. . . . . . . . . . . . . . . . . . . . . . . .
Pa
Static pressure
psF
. . . . . . . . . . . . . . . . . . . . . . . .
Pa
Air density at fan inlet
r1
. . . . . . . . . . . . . . . . . . . . . . . .
kg/m³
Air medium temperature
t
. . . . . . . . . . . . . . . . . . . . . . . .
°C
Shaft power
Pa
. . . . . . . . . . . . . . . . . . . . . . . .
kW
Efficiency
(ha) . . . . . . . . . . . . . . . . . . . . . . . .
Speed
N
Sound power level (A weighted)
LWA . . . . . . . . . . . . . . . . . . . . . . . .
dB
Weight
m
kg
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
1/min
Fittings / Accessories
•
•
•
•
•
•
•
•
Mounting feet
Motor brackets (Pick-A-Back)
Discharge flange
Discharge flex with flexible sleeve
Inlet guards
Discharge guard
Shaft guard for free shaft end
Matching flange
Options may be available only for orders of a minimum quantity, to be previously
agreed
• Inspection door
• Drain plug
• Single or double thickness powder coating
• Shaft made of stainless steel
• Nuts and bolts and fastening elements made of stainless steel
• Aluminium inlet cone
• Copper inlet cone
59
Belt Driven Centrifugal Fans / AT / Specifications
AT G2C 9/7-30/28
AT G2C-C2 20/15-30/28
Specifications
High performance centrifugal twin fan AT-G2C
(size from 9/7 to 30/28)
Lap-jointed scroll of galvanized steel EN 10142 assembled with roller-lock seaming
(size up to 18/18) or with Pittsburgh lock seam (for sizes larger than 18/18).
Inside a common supporting frame, made of galvanized steel sections, two doubleinlet fans are mounted side-by-side.
They are joined by a single shaft, supported at the ends by two pillow-block bearings,
bolted on the side frames.
This particular design doesn’t need a third bearing between the impellers, and weight
is kept low thanks to the use of large section, hollow shafts on the larger sizes.
High performance centrifugal twin fan AT-G2C-C2
(size from 20/15 to 30/28)
Lap-jointed scroll of galvanized steel EN 10142 assembled with Pittsburgh lock seam.
The G2C-C2 fan is a reinforced twin unit, suitable to achieve higher speed and power
levels than the G2C.
Mechanical design is similar to that of the G2C fans, but hollow shafts with larger
diameter (45 mm) journals and heavy duty split-block bearings make them stronger.
The G2C-C2 fans retain the other characteristics of the G2C fans.
Fan data
Fan type
. . . . . . . . . . . . . . . . . . . . . .
Volume flow
qV
. . . . . . . . . . . . . . . . . . . . . . . .
m³/h
Total pressure increase
pF
. . . . . . . . . . . . . . . . . . . . . . . .
Pa
Static pressure
psF
. . . . . . . . . . . . . . . . . . . . . . . .
Pa
Air density at fan inlet
r1
. . . . . . . . . . . . . . . . . . . . . . . .
kg/m³
Air medium temperature
t
. . . . . . . . . . . . . . . . . . . . . . . .
°C
Shaft power
Pa
. . . . . . . . . . . . . . . . . . . . . . . .
kW
Efficiency
(ha) . . . . . . . . . . . . . . . . . . . . . . . .
Speed
N
Sound power level (A weighted)
LWA . . . . . . . . . . . . . . . . . . . . . . . .
dB
Weight
m
kg
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
1/min
Fittings / Accessories
•
•
•
•
•
•
•
•
Mounting feet
Motor brackets (Pick-A-Back)
Discharge flange
Discharge flex with flexible sleeve
Inlet guards
Discharge guard
Shaft guard for free shaft end
Matching flange
Options may be available only for orders of a minimum quantity, to be previously
agreed
• Inspection door
• Drain plug
• Single or double thickness powder coating
• Shaft made of stainless steel
• Nuts and bolts and fastening elements made of stainless steel
• Aluminium inlet cone
• Copper inlet cone
60
Belt Driven Centrifugal Fans / AT / Specifications
AT SC2 7/7-18/18
Specifications
High performance centrifugal tripple fan AT G3C
(size from 12/9 to 30/28)
Lap-jointed scroll of galvanized steel EN 10142 assembled with roller-lock seaming
(size up to 18/18) or with Pittsburgh lock seam (for sizes larger than 18/18)
The G3C is a triple fan: three identical double-inlet units are mounted inside a common frame of steel sections.
The single, common shaft is supported by just two pillow-block bearings, bolted on
the end frames.
This special version is particularly suited when a large airflow must be distributed on a
wide surface, or when a fan of particularly limited height can be useful.
Other advantages of this design are the use of a single motor, operation without
bearings installed between the impellers, and low weight thanks to the use of hollow
shafts.
Using a common shaft, without intermediate bearings and couplings, provides also a
reliable and smooth operation, with limited operating noise.
High performance centrifugal tripple fan AT G3C-C2
(size from 20/15 to 30/28)
Lap-jointed scroll of galvanized steel EN 10142 assembled with Pittsburgh lock seam.
Of similar construction to the G3C version, but employs larger diameter hollow shafts,
with larger diameter journals and heavy-duty bearings on split-type pillow blocks.
These improvements allow operation at higher speed and power levels.
The G3C-C2 fans keep unchanged all the other characteristics of the G3C fans.
Fan data
Fan type
. . . . . . . . . . . . . . . . . . . . . .
Volume flow
qV
. . . . . . . . . . . . . . . . . . . . . . . .
m³/h
Total pressure increase
p F
. . . . . . . . . . . . . . . . . . . . . . . .
Pa
Static pressure
psF
. . . . . . . . . . . . . . . . . . . . . . . .
Pa
Air density at fan inlet
r1
. . . . . . . . . . . . . . . . . . . . . . . .
kg/m³
Air medium temperature
t
. . . . . . . . . . . . . . . . . . . . . . . .
°C
Shaft power
Pa
. . . . . . . . . . . . . . . . . . . . . . . .
kW
Efficiency
(ha) . . . . . . . . . . . . . . . . . . . . . . . .
Speed
N
Sound power level (A weighted)
LWA . . . . . . . . . . . . . . . . . . . . . . . .
dB
Weight
m
kg
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
1/min
Fittings / Accessories
•
•
•
•
•
•
•
•
Mounting feet
Motor brackets (Pick-A-Back)
Discharge flange
Discharge flex with flexible sleeve
Inlet guards
Discharge guard
Shaft guard for free shaft end
Matching flange
Options may be available only for orders of a minimum quantity, to be previously
agreed
• Inspection door
• Drain plug
• Single or double thickness powder coating
• Shaft made of stainless steel
• Nuts and bolts and fastening elements made of stainless steel
• Aluminium inlet cone
• Copper inlet cone
61
Fittings / Accessories






















[1] Mounting feet
[2] Discharge flange
[3] Discharge flex
[4] Inlet guard
[5] Discharge guard
[6] Shaft guard
[7] Mounting flange
[8] Inspection door
[9] Drain plug
A extended corrosion protection
A ATEX-Execution (RZR)
A Impellerblades continuosly welded (RZR)
A Casing continuosly welden-inside (RZR)
A Casing continuosly welden- inside/outside (RZR)
A Split casing (RZR 13/19)
A Shaft from stainless steel
A Nuts and bolts from stainless steel
A Thread for impuls sensor fitting
A Volumeter (RDH / RZR)
A Copper inlet cone
A Aluminium inlet cone (ADH / AT / RDH)
A hot dip galvanised side frame (ADH / RDH)
A relubricatable bearings (relubrication during operation, RZR)
Fan set (ADH / AT / RDH on request)
[10] Base frame
[11] Pick-a-Back
[12] Belt drive
[13] Drive guard
A Belt guard split horizontally
A Access door on belt guard
A Opening on belt guard for speed measuring device
[14] Drive motor
[15] Anti-vibration mounts
62
Gebhardt fan systems – the "completely carefree" package for installation fans with belt drive
Fan systems with components tailored for each other, precisely assembled and adjusted, individually tested, delivered quickly and on time, allow
for problem-free processing and ensure long and reliable operation.
Size has its price so we build as small as possible
Where required, we deliver our fan systems with safety equipment
complying with DIN EN ISO 13857 for safe operation!
A Optimised base frame lengths, tailored to the casing position and
motor size and small system construction heights save valuable
space in the air conditioning unit
A Various casing and drive positions allow for individual adjustment to
the most diverse applications
A Optimised flat belt drives allow for efficient operation with a high level
of convenience
e.g. Belt guard
A also as segmented design
A also with inspection hole
A also with rotation speed measurement opening.
Fan set diversity
Version
Description
Pick-A-Back
for sizes 0200/-0355
Pick-A-Back
for sizes 0400/-1000
Compact base frame
Integrated compact base frame for sizes up to 0500.
Base Frame, CC-profile
Base frames made from CC-profiles with length optimation.
Base Frame, U-profile
Heavy duty base frame made from U-profiles, welded and painted, from size 0800
upward.
Figure
63
Belt Driven Centrifugal Fans / Fittings and Accessories
Fittings / Accessories
Drain Plug
If the fan is installed outside, or if conveying a medium containing humidty, condensation of water may accumulate inside the fan scroll.
For extraction of this water a condense water drain has to be installed at the lowest
point of the scroll.
The drain will be provided with a thread for connecting it to a piping.
At order please indicate the required casing position.
Connecting thread / hole
A ADH / RDH = female thread R 1/8"
A AT = drain hole
A RZR 0200/-1000 = male thread R 1/2"
A RZR 1120/-1600 = male thread R 1"
Dimensions
R
R
Inspection Door
For the purposes of maintenance and cleaning there is an opening, which can be
securely closed by means of an access door, in the fan casing.
As it can only be opened with a tool, the access door complies with safety and
accident prevention regulations. Additional securing with locking bars can be supplied
on request.
The site and orientation of the inspection opening depends on the casing position.
The position should be specified when ordering according to the following diagram:
e.g. Access door, Pos. 2.
Inspection Door Positions
Pos.1
Pos.2
Pos.3
Pos.1
Pos.1
Pos.2
Pos.2
Pos.4 Pos.3
Pos.3
ADH / RDH
RZR 0200/-1000
RZR 1120
RZR 1250/-1600
Dimensions in mm, subject to change.
ADH ..0160/-0180
0200/-0280
0315/-0560
0630/-1000
–
64
RZR ..-
RDH ..100 × 230
240 × 240
360 × 360
500 × 500
500 × 500
0180
0200/-0280
0315/-0560
0630/-1000
1120/-1400
100 × 230
240 × 240
360 × 360
500 × 500
500 × 500
–
0200
0225/-0315
0355/-1000
1120/-1600
160 × 160
210 × 210
310 × 310
500 × 500
Belt Driven Centrifugal Fans / Fittings and Accessories
Fittings / Accessories
Corrosion Protection Systems
Nicotra Gebhardt fans are treated with high quality corrosion protection as standard.
Under extreme operating conditions, however, additional corrosion protection is
advisable.
ADH / AT / RDH
Extended corrosion protection for series ADH, AT and RDH only available on request.
RZR
Depending on the use to which the fan is to be put and the degree of exposure to
corrosion, we offer various anti-corrosion protection measures.
Corrosion protection - Class S40
Degreasing, ironphosphating
A Powder coating Layer thickness ≥40 μm, Colour RAL 7039
A Wet lacquering Layer thickness ≥40 μm (primer + lacquer finish), Colour RAL 7039
Corrosion protection - Class K90
Degreasing, ironphosphating
A Powder coating Layer thickness ≥90 μm, Colour RAL 7039
A Wet lacquerinag Layer thickness ≥90 μm (primer + lacquer finish), Colour
RAL 7039
Corrosion protection - Class P100
Degreasing, ironphosphating
A Thermoplastic powder coating Layer thickness ≥100 μm, Colour RAL 7001
Continuously welded blades
Impeller blades can be continuously welded in order to increase the corrosion
resistance when conveying a humid or slightly aggressive medium. The continuous
welding has no influence on the material resistance or on the max. tip speed.
Continuously welded scroll
The casing can be continuously welded in order to increase the corrosion resistance
when conveying a humid or slightly aggressive medium. By continuous welding the
casing is provided with additional impermeability.
A GEH 01 - Casing inside continuously welded
A GEH 02 - Casing inside and outside continuously welded
65
Belt Driven Centrifugal Fans / Fittings and Accessories
Fittings / Accessories
Split Casing
There may be a lot of reasons to choose a split casing, the advantages of split casings are:
A smaller openings for fan chambers
A easier refitting of fan
A easier transport to site
A easier access to impeller for cleaning and maintenance
The joint face on the casing position runs horizontally above or under the fan axis
(see drawing). The reinforced side frames are not divisible. The fan is supplied fully
assembled.
Dimensions in mm, subject to change.
a
c7
t5
h6
t8
t11
h4
t7
c8
w
w
RZR
RZR a c7c8h4h6t5t7t8t11w
13-19-0500 709 822 950 957 783 410
13-19-0560 785 914 1061 1083 884 458
13-19-0630 872 1021 1188 1204 984 511
13-19-0710 9671143133113501100572
13-19-080010861280149815201245640
13-19-090012191439168617071386719
13-19-100013561568184718691509784
473
531
594
666
749
843
923
409
456
510
571
640
720
784
477
530
594
665
749
843
924
652
743
820
905
1035
1140
1230
Stainless Steel Shaft
For applications where there is an increased risk of corrosion, an optional shaft made
of stainless steel can be supplied.
A ADH / AT / RDH
Stainless steel 1.4301 / AISI 304 / XCrNi18-10
A RZR
Stainless steel 1.4305
Stainless Steel Nuts and Bolts
For applications where there is an increased risk of corrosion, the connecting elements of the fan can be ordered made of stainless steel.
Impuls Sensor Thread
A tapped hole M6 or M8 can be provided in the pedestal bearing cast housing for
admission of sensors to measure the shock impulses.
(The measuring connecting piece is not included in the scope of delivery).
66
Belt Driven Centrifugal Fans / Fittings and Accessories
Fittings / Accessories
Volumeter
pin
With the flow measuring device it is possible to easily measure/monitor the flow rate
after the fan is installed. A pressure tapping at a predetermined position on the inlet
cone is provided whereby the differential pressure in relation to the static pressure is
measured in front ofthe inlet cone in a static atmosphere.
Permissible media temperature: +80 °C (RZR), +70 °C (RDH).
qV = K ×
2
—
 × pDü
Measuring connector in inlet cone
Hose pipe to connecting piece in the side wall
Connecting piece (external diameter of 6mm) for the pressure
measurement
In order to calculate the flow rate, a calibrating factor "K" is required. This factor is
determined by comparativemeasurement on a standard test rig.
Standard-calibration faktor K
Where fans are built into a plenum, the pressure difference between the static pressure in the inlet side plenum and the pressure on the inlet cone is to bemeasured.
It must be ensured that the static pressureto be measured in front of the inlet cone is
not tampered by dynamic pressure fractions.
It is often recommended to arrange a ring of points on the wall facing the outlet side
as illustrated in the sketch.
When using the K‑factors specified below, a minimum clearance of 0.5×D between
the inlet cone of the fan and the side wall of the plenum must be maintained.
Indentations that obstruct the flow to the cone canlead to faults when measuring the
flow rate.
In the event that the differential pressure is fed via a pressure sensor, the signal can
also be used for regulating purposes.
pin
Calibration factors
A v olume flow qV [m³/h]
A calibration factor K [m²s/h]
A density of media r [kg/m³]
A pressure difference at cone DpDü [Pa]
Type
Standard calibration factor K
m²s/h
IMV 13-0200
IMV 13-0225
IMV 13-0250
IMV 13-0280
IMV 13-0315
IMV 13-0355
IMV 13-0400
IMV 13-0450
IMV 13-0500
IMV 13-0560
IMV 13-0630
IMV 13-0710
IMV 13-0800
IMV 13-0900
IMV 13-1000
IMV 13-1120
IMV 13-1250
IMV 13-1400
IMV 13-1600
100
115
140
165
190
235
290
360
460
560
730
960
1180
1450
1850
2400
3000
3800
4700
Inlet Cones
Inlet cone of copper or aluminium prevent the production of sparks during operation.
These can be employed when spark protection is required, but ATEX is not mandatory.
Hot Dip Galvanised Side Frame
Fan Ranges ADH/RDH E4, E6, E7 or K, K1, K2
For applications where an increased corrosion protection is required the reinforcing
side frames of the casing can be executed in hot dip galvanisation as an option.
67
Belt Driven Centrifugal Fans / Fittings and Accessories
Fittings / Accessories
Relubrications
Series RZR
The lubrication unit IWN allows the fan bearings to be greased even when in operation.
The lubrication tubes screwed into the bearing housing are lead out and fastened at
the side wall of the fan.
If desired, the lubrication tubes can be lead to the drive side of the fan.
A IWN 01 - uses standard grease
A IWN 11 - uses moisture resistant grease
ADH / AT / RDH
RZR
For more details see "Technical Description" - "Bearings"!
Series ADH / RDH
The bearing housings of the fan ranges ADH / RDH E4, E6, E7 or K, K1, K2 and AT
AR, TIC are equipped with directly fitted grease nipples.
Mounting feet
Feet made from galvanized steel, either mounted or loose, enable the fan to be installed with a 0, 90 and 270 orientation.
Protection guards
The fans are designed for installation in equipment and as standard are not equipped
with protective guards.
They should not be put into operation before all protective devices are fitted
and connected!
Protective measures must be carried out as set out in DIN EN ISO 12100 "Safety of
machinery - Basic concepts, general principles for design".
If the application of the fan allows free access to the inlet and discharge apertures,
safety devices must be put in place on the fan in accordance with DIN EN ISO 13857!
Suitable safety guards are available as an optional extra.
Shaft Guards
Contact guard for the free end of the shaft for double inlet centrifugal fans. Models in
accordance with DIN EN ISO 13857, made of painted steel mesh.
Flanges
Made from galvanized or painted steel, to connect ducts and system components to
the fan outlet side.
Flexible Connections
Connecting piece with elastic intermediate section for the vibration or impact-noise
decoupled connection of the fan to the system or unit. Made out of two connecting
flanges with elastic intermediate section.
Temperature range / Application
A Standard up to +80 °C
A ATEX max. +60 °C
68
Belt Driven Centrifugal Fans / Fittings and Accessories
Fittings / Accessories
Anti Vibration Mounts
AV mounts are designed to prevent noise and vibrations being transmitted through
the base of the fan.
AV mounts should be mounted beneath the fan base frame so the weight and
spring deflections are evenly distributed. They should not be mounted symmetrically
because a counter force is induced into the system by the pressure created by the
working fan.
It is difficult for the manufacturer to establish the position of the AV mounts to suit all
types of application.
Vibration and noise insulation can also be improved by ensuring that the fan is connected to its external environment by a flexible coupling.
Fastening for CC-profile
Rubber pads and buffers for both vibration and noise insulation at fan speeds
above 1400 rpm or 850 rpm.
Fastening for U-profile
Rubber buffers for noise insulation only at fan speeds under 800 rpm or 1700 rpm.
Spring diffusers with noise insulation layer and height adjustment, for both vibration
and noise insulation at fan speeds above 400 rpm.
Available AV mounts for different fans, see proSELECTA II.
The AVM-mounts are supplied with the suitable mounting material for the
base frame.
Anti Vibration Rubber Pads
E
H
ZBD
ZBD
A
B
C
D
E
G
H
21-6035A*
21-6065A*
21-5935A*
21-5950A*
21-6035C*
21-6065C*
21-5935C*
21-5950C*
60
60
90
90
45
45
70
70
35
35
50
50
30
30
45
45
20
20
32
32
5
6
9
9
M6
M6
M10
M10
* A = for U-profile, C = for CC-profile
G
D
C
A
B
Anti Vibration Rubber Buffers
K
E
F
H
G
ZBD
ZBD
A
E
F
G
H
K
01-0405A*
03-0503A*
01-0504A*
03-0806A*
03-1007A
03-1510A*
02-2008A*
01-0405C*
03-0503C*
01-0504C*
03-0806C*
03-1007C*
03-1510C*
02-2008C*
20
25
25
40
50
75
100
25
15
20
30
34
50
40
16
11
11
21
26.5
39
44
M 6
M 6
M 6
M 8
M 10
M 12
M 16
M 6
M 6
M 6
M 8
M 10
M 12
M 16
6.5
6.5
6.5
9.5
10.5
12.5
16.5
A
* A = for U-profile, C = for CC-profile
69
Belt Driven Centrifugal Fans / Fittings and Accessories
Fittings / Accessories
H
E
Anti Vibration Spring Diffusers
ZBD
ZBD
A
B
C
D
~E
~F
G
H
60-0101A*
60-0103A*
60-0105A*
60-0108A*
60-0112A*
60-0120A*
60-0130A*
60-0150A*
60-0101C*
60-0103C*
60-0105C*
60-0108C*
60-0112C*
60-0120C*
60-0130C*
60-0150C*
130
130
130
130
150
150
150
150
100
100
100
100
120
120
120
120
70
70
70
70
82
82
82
82
72
72
72
72
92
92
92
92
70-50
70-50
70-50
70-50
90-75
90-75
90-75
110-85
35
35
35
35
35
35
35
35
13
13
13
13
13
13
13
13
M10
M10
M10
M10
M12
M12
M12
M12
G
* A = for U-profile, C = for CC-profile
B
A
Anti Vibration Spring Diffusers
~60
M8
M8
ZBD
ZBD
SP-7701A*
SP-7702A*
SP-7703A*
SP-7704A*
SP-7705A*
SP-7706A*
SP-7707A*
SP-7701C*
SP-7702C*
SP-7703C*
SP-7704C*
SP-7705C*
SP-7706C*
SP-7707C*
45
* A = for U-profile, C = for CC-profile
11
95
70
~106
M10
50
Anti Vibration Spring Diffusers
ZBD
ZBD
SP-7501A*
SP-7502A*
SP-7503A*
SP-7504A*
SP-7505A*
SP-7506A*
SP-7507A*
SP-7508A*
SP-7501C*
SP-7502C*
SP-7503C*
SP-7504C*
SP-7505C*
SP-7506C*
SP-7507C*
SP-7508C*
* A = for U-profile, C = for CC-profile
120
150
Anti Vibration Spring Diffusers
E
H
ZBD
ZBD
E
H
kg
80-W603A*
80-W605A*
80-W608A*
80-W612A*
80-W616A*
80-W603C*
80-W605C*
80-W608C*
80-W612C*
80-W616C*
68-101
76-101
86-105
84-104
92-105
M 16
M 16
M 16
M 16
M 24
8.3
8.6
9.0
9.3
9.7
14
200
* A = for U-profile, C = for CC-profile
240
270
70
Belt Driven Centrifugal Fans / Fan Set
Fan Sets
Base Frame with Belt Tensioning Device
G2Z-component size 0200/-0500 (only RZR 11/19)
This compact base frame with integrated motor tensioning slider provides optimum
compactness and easiest handling.
A The base frame made of galvanized sheet steel is screwed directly onto the fan
(without any casing feet) – the result being the low overall height of the system.
A The overall length depending on the casing position and size of the motor is a
further factor influencing the optimum compactness.
A The integrated tensioning slider considerably simplifies re-adjustment of the belt
drive during maintenance and service work.
G1Z-component size 0400/-0710
The base frames up to motor size 180 are manufactured from galvanized CC-profiles.
The anti-vibration mounts in the CC-profile provide infinitely variable adjustment.
From motor size 200 the base frames are of U-profile, welded and painted.
Fitted motor tensioning tracks that allow the motor to be shifted longitudinally, allow
for the simple adjustment of the belt tension.
G1Z-component size 0800/-1600
Base frame of stable U-profiles, welded and painted, with holes for attaching the antivibration mounts.
Fitted motor tensioning tracks that allow the motor to be shifted longitudinally, allow
for the simple adjustment of the belt tension.
Equipment
A FKS hot-dip galvanized for U-profile base frame
Pick-A-Back
This allows the motor to be fixed directly onto the fan casing, where space around
the fan is limited. One side of the pick-a-back is fixed to the casing so that it swivels,
while the other is supported on a spindle. Thus the pick-a-back becomes adjustable to leave room for tensioning the drive belt. The various motor arrangements and
casing positions are shown in the drawings.
The accompanying tables also show the maximum permissible motor sizes.
When using a pick-a-back arrangement and fitting anti vibration mounts (AVM) an
additional base frame for fitting the AVM may be required depending on the position
of the centre of gravity of the whole fan set.
71
Belt Driven Centrifugal Fans / Fan Set
Fan Sets
Belt Drive
Wedge Belts
High performance narrow V-belts in accordance with DIN 7753 are temperature stable up to +80 °C, resistant to mineral oils and electrostatically conductive.
The belt pulleys are made of high quality cast iron and, depending on the peripheral
velocity and number of grooves, are statically (G 16) or dynamically (G 6.3) balanced.
They are fastened to the shaft of the motor or fan by means of a clamping bush.
Flat Belts
The flat belt drives employed are made using the most modern technology and materials. They are the centrepiece of highly developed, powerful belt drives.
This modern flat belt drive has distinct advantages over traditionally employed V-belt
drives and exceeds it in efficiency, quiet running and economy.
Overview of the advantages:
A higher efficiency
A longer service life
A quieter running
A easy to install
A low maintenance
A no wear on the belt - so it is possible to dispense with the 2nd filter stage in the air
conditioning unit (in accordance with VDI 6022)
Belt Guard
Totally enclosed belt guards are made from galvanised sheet steel in accordance with
DIN DIN EN ISO 13857.
The front section can be removed for maintenance. If there is no standard belt guard
available for the selected belt drive (see table), a suitable belt guard will be made as a
welded construction and then coated.
Features
A belt guard split horizontally
A access door on belt guard
A opening on belt guard for speed measuring device
u4
b8
~b7
Dimensions in mm, subject to change.
l3
a7
l4
~u3
RBS
a7max
DWmax
b8
b7
s5
u4
u3
l4
l3
01-....-01
01-....-02
01-....-03
01-....-04
01-....-05
01-....-06
01-....-07
01-....-08
01-....-09
01-....-10
01-....-11
01-....-12
01-....-13
01-....-14
01-....-15
01-....-16
01-....-17
01-....-18
01-....-19
250
300
350
400
450
500
600
700
800
900
450
500
600
700
800
900
1000
1100
1200
90
90
160
160
160
160
160
125
125
125
250
250
250
315
315
315
315
315
315
194
194
264
264
264
264
264
264
264
264
344
344
344
484
484
484
484
484
484
159
159
229
229
229
229
229
229
229
229
304
304
304
444
444
444
444
444
444
97
97
132
132
132
132
132
132
132
132
172
172
172
242
242
242
242
242
242
72
72
72
72
72
72
72
72
72
72
122
122
122
122
122
122
122
122
122
69
69
69
69
69
69
69
69
69
69
119
119
119
119
119
119
119
119
119
444
494
614
664
714
764
864
964
1064
1164
794
844
944
1184
1284
1384
1484
1584
1684
404
454
574
624
674
724
824
924
1024
1124
754
804
904
1144
1244
1344
1444
1544
1644
....Spaceholder for fansize
72
DWmaxDiameter of the biggest
pulley
a7maxMaximum axle centre
distance
Belt Driven Centrifugal Fans / Fan Set
RZR 11-0200/-0500
Fan set arrangement with base frame
Dimensions in mm, subject to change.
RD 0 G
L90
L90
L0
H0
H0
H90
L0
RD 90 G
G0
G90
G0
LG
LG 180 G
LG 270 G
G90
RD
RD 180 G
L270
RD 270 G
L270
L180
H180
H180
H270
L180
P180
H90
LG 90 G
G270
G180
H270
LG 0 G
G180
G270
P180
G2Z
L2
X2
X2
RZRRZR
2
2
2
2
G0 G90 G180G270H0 H90 H180H270
11-19- 0200
11-19- 0225
11-19- 0250
11-19- 0280
11-19- 0315
11-19- 0355
11-0400
11-0450
11-0500
625
650
880
650
358
680
710
925
710
404
705
730
974
730
440
725
755
1031
755
489
750
785
1094
785
542
845
885
1207
885
603
990
970
1350
970
671
103010101440 910755
1070105015301050827
RZRRZR
2
2
2
2
L0 L90 L180L270
11-19- 0200
11-19- 0225
11-19- 0250
11-19- 0280
11-19- 0315
11-19- 0355
11-0400
11-0450
11-0500
745
740
880
740
100
793
792
925
792
100
843
829
974
829
100
893
876
1031
876
100
952
931
1094
931
100
1087109012071060100
1219112013501120120
1315120314401203120
1400127915301279120
L2
408
467
510
569
623
689
773
868
956
356
401
438
485
537
601
667
750
821
386
431
477
531
597
670
749
840
929
P180X2
Motor Base frame ~ kg
max.
396
423
450
482
520
552
587
646
700
132
6
132
7
132
7.5
132
8
132
9
16010
18011
18012
18014
286
322
356
395
438
487
546
612
680
2 The base frame length has been determined with the always largest admitted motor size. With smaller motors the frame length will be reduced.
For accurate dimensions use proSELECTA II or on request.
73
Belt Driven Centrifugal Fans / Fan Set
RZR 11-0400/-0710
Fan set arrangement with base frame
Dimensions in mm, subject to change.
G3
G180
P1
RD 270 G
H180
H180
P3
G90
RD
RD 180 G
H270
LG 270 G
G0
H270
P2
G90
G270
P4
G3
H0
P1
G3
LG
H90
RD 90 G
G180
P3
P4
G3
G3
H0
G3
P2
G0
LG 180 G
G3
RD 0 G
G1Z (CC)
G270
G3
LG 90 G
H90
LG 0 G
G1Z (U)
L2
X2
Anti-vibration mounts are supplied with
AV brackets included.
X2
RZR
2
2
2
2
G0 G90 G180G270
G3 for motor size
63-7180-90100-132160-180 200-225 250-280
11-0400
11-0450
11-0500
11-0560
11-0630
11-0710
11-0710-U
1240130016501240
1300135017401298
1434140517721405
1558150819081508
1600157420061574
1708168021451680
1700170021151700
82-CC 82-CC 82-CC
82-CC 82-CC 82-CC
82-CC 82-CC 82-CC
82-CC 82-CC 82-CC
–
82-CC 82-CC
–
82-CC82-CC
–––
RZR
H0H90
H180
H270
L2P1P2P3P4X2
Motor Base frame ~ kg
max. CC 80-U100-U
11-0400
11-0450
11-0500
11-0560
11-0630
11-0710
11-0710-U
671
773
667
749
120
755
868
750
840
120
827
956
821
929
120
921
1071
914
1041
150
1028119510211168150
1152134111431316180
1152134111431316180
22531 3 3
22532 3 3
2253360–
2253463–
2253568–
18037 – –
250– 94 145
2 The base frame length has been determined with the always largest
admitted motor size. With smaller motors the frame length will be
reduced.
For accurate dimensions use proSELECTA II or on request.
74
X2
275
320
348
384
432
479
–
355
408
452
502
566
625
–
669
275
718
320
766
348
851
384
915432
1014479
– –
3 Dimensions on request
550
614
682
759
846
943
943
82-CC
82-CC
82-CC
82-CC
82-CC
82-CC
–
80-U 3–
80-U 3–
80-U 3–
80-U 3–
80-U 3–
–
–
100-U
120-U 3
Belt Driven Centrifugal Fans / Fan Set
RZR 12-0200/-0710
Fan set arrangement with base frame
Dimensions in mm, subject to change.
G0
RD
RD 180 G
G3
G180
H180
H180
P3
P1
RD 270 G
H270
LG 270 G
G90
H270
P2
G90
G270
P4
G3
H0
P1
G3
LG
H90
RD 90 G
G180
P3
G3
G3
G3
H0
P2
G0
LG 180 G
G3
RD 0 G
G1Z (CC)
P4
G270
G3
LG 90 G
H90
LG 0 G
G1Z (U)
L2
X2
X2
Anti-vibration mounts are supplied with
AV brackets included.
X2
RZR
2
2
2
2
G0 G90 G180G270
G3 for motor size
63-71 80-90 100-132160-180200-225250-280
12-0200
12-0225
12-0250
12-0280
12-0315
12-0355
12-0400
12-0450
12-0500
12-0560
12-0630
12-0710
12-0710-U
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
1430131216551312
1522138817401388
1610146018301460
1736156119581561
1865167020781670
2008178422351784
2035184022351840
–
–
––––
–
–
––––
–
–
––––
–
–
––––
–
–
––––
–
–
––––
82-CC 82-CC 82-CC
82-CC
80-U 3–
82-CC 82-CC 82-CC
82-CC
80-U 3–
82-CC 82-CC 82-CC
82-CC
80-U 3–
82-CC 82-CC 82-CC
82-CC
80-U 3–
–
82-CC 82-CC
82-CC
80-U 3–
– 82-CC
82-CC82-CC–
–
––– – 100-U
120-U 3
RZR
H0 H90 H180H270L2
X2
Motor Base frame ~ kg
max. CC 80-U100-U
12-0200
12-0225
12-0250
12-0280
12-0315
12-0355
12-0400
12-0450
12-0500
12-0560
12-0630
12-0710
12-0710-U
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
669
769
669
750
120
753
865
753
841
120
825
955
825
931
120
920
1067
920
1046
150
1027119510271173150
1152134111521324180
1152134111521324180
4
4
4
4
4
4
550
614
682
759
846
943
–
4
4 4 4
4
4 4 4
4
4 4 4
4
4 4 4
4
4 4 4
4
4 4 4
22531 3 3
22532 3 3
2253360–
2253463–
2253568–
18037 – –
250– 94 155
2T
he base frame length has been determined with the always largest
admitted motor size. With smaller motors the frame length will be
reduced.
For accurate dimensions use proSELECTA II or on request.
3 Dimensions on request
4 The RZR 12-0200 to 0355 can only be supplied as standard basic
models.
75
Belt Driven Centrifugal Fans / Fan Set
RZR 13-0400/-1000
RZR 18-0400/-1000
Fan set arrangement with base frame
Dimensions in mm, subject to change.
G3
G180
G270
P4
P1
RD 270 G
H180
H180
P3
G90
RD
RD 180 G
H270
LG 270 G
G0
H270
P2
G90
G3
H0
P1
G3
LG
H90
RD 90 G
G180
P3
G3
G3
G3
H0
P2
G0
LG 180 G
G3
RD 0 G
G1Z (CC)
P4
G270
G3
LG 90 G
H90
LG 0 G
G1Z (U)
L2
X2
Anti-vibration mounts are supplied with
AV brackets included.
X2
G0G90G180G270 G3 for motor size
CC2U
CC2U
CC2U
CC2U
63-71 80-90 100-132160-180200-225250-280
RZRRZR
13-18-
13-18-
13-18-
13-18-
13-18-
13-18-
13-18-
13-18-
13-18-
0400
0450
0500
0560
0630
0710
0800
0900
1000
RZR RZR
13-18-
13-18-
13-18-
13-18-
13-18-
13-18-
13-18-
13-18-
13-18-
0400
0450
0500
0560
0630
0710
0800
0900
1000
1240–
1300–
1650–
1240–
1300–
1350–
1740–
1298–
1411–
1411–
1772–
1411–
1468–
1468–
1908–
1468–
1564–
1564–
2006–
1564–
16601700 16601700 21452115 16601700
–2300
–2300
–2885
–2300
–2410
–2410
–3052
–2410
–2505
–2505
–3180
–2505
82-CC
82-CC
82-CC
82-CC
82-CC 82-CC
82-CC
80-U 3–
82-CC 82-CC
82-CC
80-U 3–
82-CC 82-CC
82-CC
80-U 3–
82-CC 82-CC
82-CC
80-U 3–
82-CC 82-CC
82-CC
80-U 3–
82-CC
82-CC82-CC100-U120-U 3
80-U
80-U80-U100-U120-U
80-U
80-U80-U100-U120-U
80-U
80-U80-U100-U120-U
H0H90
H180
H270
L2P1P2P3P4X2
Motor Base frame ~ kg
max. CC80-U100-U120-U
671
775
671
775 170
755
868
755
868 170
827
957
827
957 170
921 1083
921 1083 210
1028120410281204210
1152135011521350240
1290152012901520250
1448170714481707260
1577186915771869260
22531
3 3 3
22532
3 3 3
225 3360 – –
225 3463 – –
225 3568 – –
250 37 94 155–
250 – 6798155
280 – 72 105165
280 – 77 111165
2 The base frame length has been determined with the always largest
admitted motor size. With smaller motors the frame length will be
reduced.
For accurate dimensions use proSELECTA II or on request.
76
X2
290
316
345
382
410
464
518
570
620
290
316
345
382
410
464
518
570
620
669 290
718 316
766 345
851 382
915410
1014464
1155518
1276570
1317620
3 Dimensions on request
550
614
682
759
846
943
1048
1179
1316
Belt Driven Centrifugal Fans / Fan Set
RZR 11-0800/-1000
RZR 15-0400/-1000
RZR 19-0400/-1000
Fan set arrangement with base frame
Dimensions in mm, subject to change.
G3
G180
G270
P4
P1
RD 270 G
H180
H180
P3
G90
RD
RD 180 G
H270
LG 270 G
G0
H270
P2
G90
G3
H0
P1
G3
LG
H90
RD 90 G
G180
P3
G3
G3
G3
H0
P2
G0
LG 180 G
G3
RD 0 G
G1Z (CC)
P4
G270
G3
LG 90 G
H90
LG 0 G
G1Z (U)
L2
X2
Anti-vibration mounts are supplied with
AV brackets included.
X2
G0G90G180G270 G3 for motor size
CC2U
CC2U
CC2U
CC2U
63-71 80-90 100-132160-180200-225250-280
RZR RZRRZR
15-19-
15-19-
15-19-
15-19-
15-19-
15-19-
11-15-19-
11-15-19-
11-15-19-
0400
0450
0500
0560
0630
0710
0800
0900
1000
RZR RZRRZR
15-19-
15-19-
15-19-
15-19-
15-19-
15-19-
11-15-19-
11-15-19-
11-15-19-
X2
0400
0450
0500
0560
0630
0710
0800
0900
1000
1240–
1300–
1650–
1240–
1300–
1350–
1740–
1298–
1411–
1411–
1772–
1411–
1468–
1468–
1908–
1468–
1564–
1564–
2006–
1564–
16601700 16601700 21452115 16601700
–2300
–2300
–2885
–2300
–2410
–2410
–3052
–2410
–2505
–2505
–3180
–2505
82-CC
82-CC
82-CC
82-CC
82-CC 82-CC
82-CC
80-U 3–
82-CC 82-CC
82-CC
80-U 3–
82-CC 82-CC
82-CC
80-U 3–
82-CC 82-CC
82-CC
80-U 3–
82-CC 82-CC
82-CC
80-U 3–
82-CC
82-CC82-CC100-U120-U 3
80-U
80-U80-U100-U120-U
80-U
80-U80-U100-U120-U
80-U
80-U80-U100-U120-U
H0H90
H180
H270
L2P1P2P3P4X2
Motor Base frame ~ kg
max. CC80-U100-U120-U
671
775
671
775 170
755
868
755
868 170
827
957
827
957 170
921 1083
921 1083 210
1028120410281204210
1152135011521350240
1290152012901520250
1444170714441707260
1573186915731869260
22531
3 3 3
22532
3 3 3
225 3360 – –
225 3463 – –
225 3568 – –
250 37 94 155–
250 – 6798155
280 – 72 105165
280 – 77 111165
2 The base frame length has been determined with the always largest
admitted motor size. With smaller motors the frame length will be
reduced.
For accurate dimensions use proSELECTA II or on request.
290
316
345
382
410
464
518
570
620
290
316
345
382
410
464
518
570
620
669 290
718 316
766 345
851 382
915410
1014464
1155518
1276570
1317620
550
614
682
759
846
943
1048
1179
1316
3 Dimensions on request
77
Belt Driven Centrifugal Fans / Fan Set
AT 7/7-18/18
Fan set arrangement with Pick-A-Back
Using these specially designed motor brackets, the motor can be fixed, Pick-A-Back,
directly on the scroll of the S-version fans.
When the motor must be held on the fan side-frames, the customer will need providing an appropriate slide or bracket, to connect it to the fixing holes on the standard
frames.
Motor positions
Version 1
Version 2
0°
90°
180°
270°
Permissible Motor Power
78
Size
AT
Version 1
ArticleMax. permissible
code
motor power
kW
Version 2
ArticleMax. permissible
code
motor power
kW
7/7
9/7
9/9
10/8
10/10
12/9
12/12
15/11
15/15
18/13
18/18
6873030.75
6873030.75
6873080.75
6873120.75
6873140.75
6873180.75
6873200.75
6873350.75
6873380.75
6873460.75
6873480.75
687940–
6879401.1
6879411.1
6879421.5
6879431.5
6879442.2
6879452.2
6875463.0
6879473.0
6879483.0
6879493.0
Belt Driven Centrifugal Fans / Fan Set
RZR 11-0200/-0710
RZR 19-0200/-0355
Fan set arrangement with Pick-A-Back
Dimensions in mm, subject to change.
LG 90/1
LG 0/1
H15
H17
RD 0/1
RD 90/2
H16
H16
LG 90/2
LG 0/3
H16
LG
LG 180/2
H16
RD
RD 180/2
LG 270/3
H15
RD 270/3
H15
H16
RD 180/3
H15
H15
H17
LG 180/3
LG 180/1
RD 0/3
H16
RD 180/1
H17
H17
RD 90/1
H15
RD 270/2
LG 270/2
H17
H17
X1
L1
RZRRZR
1
~ H15
1
~ H16
1
~ H17
11-19- 0200
11-19- 0225
11-19- 0250
11-19- 0280
11-19- 0315
11-19- 0355
11-0400
11-0450
11-0500
11-0560
11-0630
11-0710
650
720
680
100
700
760
720
100
750
850
810
100
860
930
890
100
880
970
960
100
96010801070100
128012901280120
133014301380120
136014701560120
151016301740150
166018001820150
181019602010180
L1
X1
Motor
max.
Weight
~ kg
286
322
356
395
438
487
546
612
680
756
843
940
901
1002
1002
1123
1123
1123
132
8
132
8
132
8
13211
16012
16017
1 This dimensions have been calculated with the largestappropriate
applicable motor in mind.
79
Belt Driven Centrifugal Fans / Fan Set
RZR 12-0200/-0710
Fan set arrangement with Pick-A-Back
Dimensions in mm, subject to change.
H15
H15
LG 90/1
RD 0/3
H16
LG 90/2
RD 90/1
H17
RD 0/1
LG 0/3
H16
LG
LG 180/2
H16
RD 90/2
H16
RD
RD 180/2
LG 270/3
H15
RD 270/3
H15
H16
RD 180/3
H15
H15
H17
LG 180/3
LG 180/1
H16
LG 0/1
RD 180/1
H17
H17
RD 270/2
LG 270/2
H17
H17
X1
L1
RZR
1
~ H15
1
~ H16
1
~ H17
12-0200
12-0225
12-0250
12-0280
12-0315
12-0355
12-0400
12-0450
12-0500
12-0560
12-0630
12-0710
670
670
690
100
710
730
780
100
850
840
860
100
880
920
930
100
950
950
1030
100
108010901130100
119012901280120
133014301390120
136014701560120
150016201630150
165017901810150
180019502000180
1 This dimensions have been calculated with the largestappropriate
applicable motor in mind.
80
~ L1
X1
Motor
max.
Weight
~ kg
286
322
356
395
438
487
546
612
680
756
843
940
90
1
100
1
100
2
112
2
112
3
112
3
132
7
132
7
132
8
13211
16012
16017
Belt Driven Centrifugal Fans / Fan Set
RZR 13-0400/-1000
RZR 18-0400/-1000
Fan set arrangement with Pick-A-Back
Dimensions in mm, subject to change.
RD 90/1
H16
H16
LG 90/1
LG 270/3
13-18-
13-18-
13-18-
13-18-
13-18-
13-18-
13-18-
13-18-
13-18-
0400
0450
0500
0560
0630
0710
0800
0900
1000
H17
RD 270/3
L1
1
~ H15
RZRRZR
H15
H15
X1
RD
RD 180/2
H17
LG
LG 180/2
1
~ H16
1
~ H17
~ L1
128013001300170
132014301380170
135015601550170
153017001730210
164018701820210
180019702010240
197021502150250
215024002350260
223026302550260
X1
Motor
max.
Weight
~ kg
548
612
683
759
845
942
1053
1179
1317
13210
13211
13212
16015
16016
16023
16030
16033
16036
1 This dimensions have been calculated with the largestappropriate
applicable motor in mind.
81
Belt Driven Centrifugal Fans / Fan Set
RZR 11-0800/-1000
RZR 15-0400/-1000
RZR 19-0400/-1000
Fan set arrangement with Pick-A-Back
Dimensions in mm, subject to change.
RD 90/1
H16
H16
LG 90/1
LG 270/3
1
~ H15
0400
0450
0500
0560
0630
0710
0800
0900
1000
1
~ H16
1
~ H17
~ L1
128013001300170
132014301380170
135015601550170
153017001730210
164018701820210
180019702010240
197021502150250
215024002350260
223026302550260
1 This dimensions have been calculated with the largestappropriate
applicable motor in mind.
82
H17
RD 270/3
L1
RZRRZRRZR
15-19-
15-19-
15-19-
15-19-
15-19-
15-19-
11-15-19-
11-15-19-
11-15-19-
H15
H15
X1
RD
RD 180/2
H17
LG
LG 180/2
X1
Motor
max.
Weight
~ kg
548
612
683
759
845
942
1053
1179
1317
13210
13211
13212
16015
16016
16023
16030
16033
16036
Belt Driven Centrifugal Fans / Fan Set
Fan Sets
Min. Pulley-Diameter, Bearings Life Expectency
As a principle, the fans are only equipped with noise tested precision bearings designed for a nominal bearing life time (L10h acc. to DIN ISO 281-1) of 40,000 operating
hours.
In order to not exceed the admitted bearing loads there are minimum pulley diameters
defined to be respected when sizing the belt drive.
The minimum pulley diameters indicated are to be applied for belt drives
selected according to the state of the art and tensioned according to the
prescriptions.
For flat belt drives the minimum pulley diameters are to be increased of 40 %
to the indicated figure!
A correct design of a belt drive may be achieved with our selection software where all
relevant parameters will be kept automatically.
For correct design of a belt drive made by external means, dimensioning and the
application of the tensioning forces have to made in full respect of all specification
data indicated.
Wedge Belts
LT /
LT = Shaft Centres
b = Defection of belt in mm under test force Fp
Fp = Test force N as prescribed by Nicotra Gebhardt-Document
LT
2
LT /
Belt Tensioning
The correct tension is achieved when the test force Fp results in a deflection of
16 mm / metre of span.
b
F
2
p
Flat Belts
ε*
LMu = Measuring Marks 1 before Tensioning
LMg = Measuring Marks 1 After Tensioning
e* = Stretching Values as specified by Nicotra Gebhardt-Document
L
Mg
L
Mu
Belt Tensioning
The correct belt tension is achieved when the measuring marks LMu have increased
by the stretching value e*. This should be carried out in two stages to prevent overstressing of the bearing.
Wedge- and Flat Belts
=
=
A further simple method for setting or checking the correct belt tension is via the
static frequency of the drive belt.
Here the flat or V-belt is set to oscillate freely through striking it whilst stationary.
These vibrations are measured using an electronic measuring unit (e.g. a belt tension
gauge). The vibration frequency in Hz must then be set to the specified value (documentation / nameplate).
1 = Measuring point
Detailed instruction on tensioning are included within the operating and
maintenance manuals.
83
Belt Driven Centrifugal Fans / Fan Set
Fan Sets
Min. recommended Pulley Diameter for ADH
Fan size
160
180
200
225
250
280
315
355
400
450
500
560
630
710
800
900
1000
84
Fan model
E0 / E2
G2E0 / E2
E0 / E2
G2E0 / E2
E0 / E2 / E4
G2E0 / E2
E0 / E2 / E4
G2E0 / E2
E0 / E2
E4
G2E0 / E2
G2E4
G2E7
E0 / E2
E4
G2E0 / E2
G2E4
G2E7
E0 / E2
E4
E6
G2E0 / E2
G2E4
G2E7
E0 / E2
E4
E6
G2E0 / E2
G2E4
G2E7
E0 / E2
E4
E6
G2E0 / E2
G2E4
G2E7
E0 / E2
E4
E6
G2E0 / E2
G2E4
G2E7
E0 / E2
E4
E6
E7
G2E0 / E2
G2E4
G2E7
E0 / E2
E4
E6
E7
G2E2
G2E4
G2E7
L/R
K
K1
K2
G2R
G2K
G2K2
L/R
K
K1
K2
G2K
G2K2
K
K1
K2
G2K
G2K2
K
K1
K2
G2K
G2K2
K
K2
G2K
G2K2
Nominal motor power in kW
2.2
63
63
63
63
71
71
80
80
80
80
3
71
71
80
80
95
95
112
100
112
90
100
95
100
112
100
112
4
125
140
140
160
150
112
132
125
5.5
7.5
11
15
140
180
160
18.5
22
224
100
118
160
140
212
150
112
224
112
140
180
224
160
250
160
224
250
160
190
212
224
125
280
180
224
236
224
280
160
180
212
224
140
280
180
212
250
280
160
190
250
212
250
315
160
180
250
300
190
224
180
315
250
315
180
212
250
300
190
160
250
180
212
236
160
224
250
280
180
160
250
180
200
224
180
224
280
355
212
180
212
180
236
200
224
280
200
224
224
212
180
212
180
224
212
236
200
224
250
200
224
224
280
236
200
236
200
280
200
250
180
280
224
224
280
224
224
280
224
224
280
190
224
280
140
90
140
100
180
112
180
118
125
90
180
125
140
112
200
140
180
100
132
112
180
150
140
112
200
150
132
112
180
150
132
100
180
140
200
112
132
118
212
180
140
112
200
160
132
112
200
180
112
100
100
118
112
118
250
180
224
150
224
132
180
150
224
200
132
132
45
55
75
300
300
300
224
200
160
132
37
250
140
112
132
30
180
132
212
180
160
132
215
200
236
160
224
224
160
180
132
200
180
224
150
132
180
180
250
224
180
250
180
160
190
224
250
180
180
200
160
180
180
200
180
212
180
200
280
Belt Driven Centrifugal Fans / Fan Set
Fan Sets
Min. recommended Pulley Diameter for AT
Fan size
7/7
9/7
9/9
10/8
10/10
12/9
12/12
15/11
15/15
18/13
18/18
20/15
20/20
22/15
22/22
25/20
25/25
28/20
28/28
30/20
30/28
Fan model
S / SC
G2L / SC2
S / SC
AR
G2L / SC2
G2C
S / SC
AR
G2L / SC2
G2C
S / SC
AR
G2L / SC2
G2C
S / SC
AR
G2L / SC2
G2C
S / SC
AR
G2L / SC2
G2C
G3C
S / SC
AR
G2L / SC2
G2C
G3C
S / SC
AR
G2L / SC2
G2C
G3C
S / SC
AR
G2L / SC2
G2C
G3C
S / SC
AR
G2L / SC2
G2C
G3C
S / SC
AR
G2L / SC2
G2C
G3C
TIC
G2C
G2C-C2
G3C
G3C-C2
TIC
G2C
G2C-C2
G3C
G3C-C2
TIC
G2C
G2C-C2
G3C
G3C-C2
TIC
G2C
G2C-C2
G3C
G3C-C2
TIC
G2C
G2C-C2
G3C
G3C-C2
TIC
G2C
G2C-C2
G3C
G3C-C2
TIC
G2C
G2C-C2
G3C
G3C-C2
TIC
G2C
G2C-C2
G3C
G3C-C2
TIC
G2C
G2C-C2
G3C
G3C-C2
TIC
G2C
G2C-C2
G3C
G3C-C2
Nominal motor power in kW
1.1
63
63
63
–
63
–
–
–
63
–
63
–
63
–
–
–
63
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
1.5
63
63
63
–
63
–
63
–
71
–
71
–
71
–
71
–
80
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
2.2
80
90
85
–
90
–
90
–
95
–
85
–
95
–
95
–
112
–
71
–
85
–
–
90
–
80
–
–
85
–
80
–
–
80
–
80
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
3
112
118
112
80
125
71
125
85
132
–
112
80
132
–
125
85
140
–
90
–
95
–
–
112
–
112
–
–
112
–
100
–
–
100
–
100
–
–
100
–
95
–
–
100
–
90
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
4
5.5
7.5
100
140
200
80
100
150
112
150
224
80
112
150
100
150
200
80
180
118
100
150
160
224
90
118
85
118
80
100
140
100
140
85
90
132
90
140
85
–
132
95
132
85
–
132
–
125
–
–
132
–
118
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
125
180
118
180
90
112
200
140
200
112
112
180
118
200
112
100
180
132
180
100
100
180
100
180
95
100
180
100
180
95
100
100
–
–
–
–
100
–
–
–
–
100
–
–
–
–
100
–
–
–
–
90
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
180
11
15
160
236
118
118
224
180
190
280
140
140
200
200
160
236
150
118
224
180
180
250
132
118
250
140
250
112
112
250
132
224
112
112
140
112
–
112
–
132
112
–
112
–
132
112
–
112
–
132
112
–
112
–
118
112
–
112
–
112
112
–
112
–
100
112
–
112
–
100
112
–
112
–
100
100
–
100
–
100
100
–
100
–
200
160
224
200
280
160
160
224
224
190
280
160
140
200
160
–
150
–
200
150
–
140
–
200
160
–
140
–
200
150
–
140
–
160
140
–
132
–
150
140
–
132
–
150
132
–
132
–
140
132
–
125
–
140
132
–
125
–
140
125
–
125
–
224
200
280
250
–
200
–
280
224
–
200
–
280
224
–
200
–
280
224
–
200
–
224
200
–
200
–
224
200
–
180
–
200
180
–
180
–
200
180
–
160
–
200
180
–
180
–
200
180
–
160
–
18.5
22
30
37
45
55
150
180
200
224
150
180
200
224
150
180
200
224
150
180
200
224
150
180
200
224
150
180
200
224
150
180
200
224
150
180
190
224
250
150
180
190
224
224
150
180
190
224
150
180
190
224
224
150
180
190
224
224
150
180
190
224
224
150
180
190
224
224
150
180
190
224
224
150
180
190
224
224
150
180
190
212
224
150
180
190
224
224
150
180
190
212
224
150
180
190
224
224
250
280
–
280
–
250
–
250
–
280
–
250
–
280
–
250
–
250
–
224
–
250
224
–
224
–
250
224
–
200
–
250
224
–
224
–
250
224
–
200
–
85
Belt Driven Centrifugal Fans / Fan Set
Fan Sets
Min. recommended Pulley Diameter for RDH
Fan size
Fan model
0180
0200
0225
E0 / E2
E0 / E2 / E4
E0 / E2 / E4
E0 / E2
E4
G2E4
G2E7
E0 / E2
E4
G2E0 / E2
G2E4
G2E7
E0 / E2
E4
E6
G2E0 / E2
G2E4
G2E7
E0 / E2
E4
E6
G2E0 / E2
G2E4
G2E7
E0 / E2
E4
E6
G2E4
G2E7
E0 / E2
E4
E6
G2E4
G2E7
E0 / E2
E4
E6
E7
G2E4
G2E7
E0 / E2
E4
E6
E7
G2E2
G2E4
G2E7
R
K
K1
K2
G2K
G2K2
R
K
K1
K2
G2K
G2K2
K
K1
K2
G2K
G2K2
K
K1
K2
G2K
G2K2
K
K2
G2K
G2K2
0250
0280
0315
0355
0400
0450
0500
0560
0630
0710
0800
0900
1000
86
Nominal motor power in kW
2.2
63
63
63
3
63
63
63
71
71
80
4
71
80
71
80
80
5.5
7.5
90
90
85
100
90
112
90
100
90
118
90
80
90
85
100
90
90
112
100
15
18.5
22
180
118
140
150
125
160
180
125
140
125
160
30
37
45
55
75
100
90
125
112
90
100
90
112
112
100
125
90
140
100
112
112
112
125
112
100
118
125
132
132
100
11
112
125
112
118
112
132
112
180
140
140
112
160
150
118
150
140
180
150
112
140
140
180
150
200
140
224
200
160
212
150
125
200
150
200
140
150
180
160
140
212
160
160
200
280
180
150
236
180
190
180
200
280
355
250
315
180
224
250
200
180
200
280
250
280
180
212
180
190
250
160
180
250
212
250
224
250
315
180
236
315
190
224
280
140
118
224
150
180
250
200
140
190
180
224
224
200
250
180
250
212
224
212
224
224
224
224
224
224
250
280
280
224
224
280
224
224
280
224
224
300
224
224
280
280
Belt Driven Centrifugal Fans / Fan Set
Fan Sets
Min. recommended Pulley Diameter for RZR
Fan size
Fan model
0200
Nominal motor power in kW
3
4
5.5
7.5
11 / 12 / 19
71
71
71
90
0225
11 / 12 / 19
71
71
80
100
0250
11 / 12 / 19
71
71
90
112
15
18.5
22
30
11 / 12
71
71
90
118
19
71
71
71
85
11 / 12
71
85
106
132
19
71
71
75
95
11 / 12
75
95
118
150
19
71
71
85
106
11 / 12
71
80
100
125
13 / 15 / 18 / 19
71
71
71
71
85
106
125
140
180
11 / 12
71
90
112
140
13 / 15 / 18 / 19
71
71
71
71
95
118
140
160
200
11 / 12
80
100
125
160
13 / 15 / 18 / 19
71
71
71
80
106
132
160
180
224
11 / 12
71
71
85
112
150
190
13 / 15 / 18 / 19
71
71
71
71
90
112
132
150
190
224
11 / 12
71
80
100
132
180
224
13 / 15 / 18 / 19
71
71
71
75
100
125
150
170
224
250
11 / 12
71
85
112
140
190
236
280
13 / 15 / 18 / 19
71
71
71
71
85
106
118
140
180
11
80
100
125
160
224
280
315
355
13 / 15 / 18 / 19
71
71
71
71
95
118
140
160
11
95
118
150
200
280
355
400
450
13 / 15 / 18 / 19
71
71
71
71
85
106
125
140
11
112
140
180
224
315
400
450
500
13 / 15 / 18 / 19
71
71
71
71
95
118
140
1120
13
–
–
–
–
315
315
1250
13
–
–
–
–
315
1400
13
–
–
–
–
1600
13
–
–
–
–
0280
0315
0355
0400
0450
0500
0560
0630
0710
0800
0900
1000
11
37
45
55
75
90
110
132
212
250
280
212
236
280
315
180
212
250
300
375
160
212
236
280
315
425
315
315
315
315
315
315
315
315
315
315
315
315
315
315
315
315
315
315
315
315
315
315
315
315
160
200
355
355
400
450
315
355
355
400
400
450
315
315
355
355
400
400
450
450
315
315
355
355
400
400
450
500
250
112
125
140
560
For flat-belt-drives the listed recommended pulley diameter mus be enlarged up to approx. 40 %.
87
Belt Driven Centrifugal FansBelt Driven Centrifugal Fans / Description
Description
General
The high-performance centrifugal fans are the result of extensive and systematic
development work.
These technically first-rate products are distinguished by their high efficiency, the
large pressure differences attainable and low noise levels.
The sizes are geometrically scaled in accordance with the standard range R 20 and
the nominal size stated is the external diameter of the impeller.
Media
The fans are suitable for handling air and other non aggressive gases from -20 °C up
to +80 °C, resp. +100 °C.
The ambient temperature at the drive motor must not exceed +40 °C.
Protective installations
The fans are designed for installation in equipment and as standard are not equipped
with protective guards.
They should not be put into operation before all protective devices are fitted
and connected!
Protective measures must be carried out as set out in DIN EN ISO 12100 "Safety of
machinery - Basic concepts, general principles for design".
If the application of the fan allows free access to the inlet and discharge apertures,
safety devices must be put in place on the fan in accordance with DIN EN ISO 13857!
Suitable safety guards are available as an optional extra.
Shafts
Shafts ADH / AT / RDH
The fan shafts are manufacrured of ground, precisely rounded carbon steel C40.
They are principally prepared without being stepped at both ends.
The shafts of the RDH K1 and K2 ranges, size 1000 are machined on both ends for
fitting a pulley.
ADH / AT from size 12/9 / RDH
The shafts are equipped with a keyway (open shape) at both ends and a key (type 2).
AT 7/7 up to 10/10
The standard construction is the version with flats on shaft ends (type 1), it is also
available the version with keyways (type 2).
For corrosion protection the shafts are galvanised up to fan size 0560 and 30/28.
From size 0630 and larger the shaft are covered, between bearing and hub, with a
paint in order to ensure corrosion protection.
The shaft ends are covered with a wax product easy to remove.
Shafts RZR
The shafts are manufacured of precisely rounded carbon steel C35, pared and polished.
Up to size 1000 they are not stepped at the shaft end.
For sizes 1120 up to 1600 the shafts are machined on both ends for fitting a pulley.
The shafts are equipped with a keyway at both ends and a key executed according to
DIN 6885-1.
A Groove shape N2 (open) Sizes 0200 up to 1000
A Groove shape N1 Sizes 1120 up to 1600
The shafts are covered with a easily removable wax product for corrosion protection.
Housig feet / Side frames ADH / AT / RDH
For easier installation of the fan the mounting feet and reinforcing frames are provided
with eye holes.
88
Belt Driven Centrifugal FansBelt Driven Centrifugal Fans / Description
Description
Bearings ADH / AT / RDH
ADH E0 / ADH L
ADH E2 / ADH R
AT S / AT SC
AT G2L / AT SC2
RDH E0
RDH E2 / RDH R
Maintenance free, self aligning radial insert ball bearings,
mounted in pressed steel housing/strut assemblies with
rubber interliners.
ADH E4 / ADH K
AT AR / AT TIC / AT
G2C
RDH E4 / RDH K
Monobloc pedestal cast iron pillow block bearings with
relubrication nipple, mounted on a robust frame.
Integrated, maintenance free self aligning radial ball
bearings, fixed by eccentric clamp.
ADH E6 / ADH K1 /
ADH E7-0500
RDH E6 / RDH K1 /
RDH E7-0500
Pilow block cast iron bearings with relubrication nipple,
mounted on a robust frame. Integrated self aligning
radial ball bearings, fixed by conical sleeve and locknut.
ADH E7-0560;
ADH K2-0630/-0800
AT G2C-C2
RDH E7-0560;
RDH K2-0630/-0800
Split-type plummer block bearings with relubrication
nipple, mounted on a robust frame, integrated self aligning double row ball-bearings fixed by conical sleeve,
lubricated with long life high performance grease.
ADH K2-0900-1000
RDH K2-0900-1000
RDH X1
RDH X2
Single piece plummer block housing, with grease
nipple, mounted on robust pedestal, equipped with self
aligning double row roller bearing, fixed to impeller shaft
by a concentric shaft clamp, lubricated with long life
high performance grease.
Twin Fans
The twin fans up to size 0630 are equipped with one
single shaft and 3 bearings. From size 0710 the two
separate fans are connected by an elastic coupling.
For the models G2K2 the bearings from size 0710 and
larger are – due to different loads – of a different execution inside compared to outside.
89
Belt Driven Centrifugal Fans / Description
Description
Bearings RZR
RZR 11-0200/-1000;
RZR 12-0200/-0710
(without lubricators)
Radial insert ball bearings with spherical outer Ring
mounted in pressed steel housing/strut assemblies with
rubber interliners.
RZR 11-0200/-0710;
RZR 12-0200/-0710
(with relubricators)
Radial insert ball bearings with spherical outer Ring
mounted within cast iron housing, supported from the
fan casing by tubular struts. Relubrication is effected via
extended tubes and nipples.
RZR 19-0200/-0355
(without lubricators)
Radial insert ball bearings with spherical outer Ring
mounted within cast iron housing, supported from the
fan casing by tubular struts.
RZR 19-0200/-0355
(with relubricators)
Relubrication is effected via extended tubes
and nipples.
RZR 15-0400/-1000;
RZR 19-0400/-1000
(without lubricators)
Self aligning double row ball bearings secured by adapter sleeve, mounted within a cast iron housing.
RZR 15-0400/-1000;
RZR 19-0400/-1000
(with relubricators)
Relubrication is effected via extended tubes
and nipples.
RZR 13-0400/-1600;
RZR 18-0400/-1000
(without lubricators)
Self aligning double row ball bearings within standard
plummer blocks, mounted on robust pedestal.
RZR 13-0400/-1600;
RZR 18-0400/-1000
(with relubricators)
Relubrication is effected via extended tubes
and nipples.
Lubricators for relubrication during operation
The Bearings are charged with long life high performance grease. Relubrication is
effected via extended tubes and nipples.
See operating and maintenance instructions.
A IWN 01 - Standard grease, Gadus S2 V100 3
A IWN 11 - Klüber-Staburags NBU12/300KP
90
Belt Driven Centrifugal Fans / Description
Description
Motors
Standard motors of wellknown brands, type of protection IP55, thermal class F, are
used. During commissioning and maintenance the detailed instructions provided by
the motor manufacturer (type plate/motor operating instructions) must be followed,
this also applies to the motor protection devices required onsite. The motors are
equipped with PTC resistors/temperature sensors as standard. Motors with integrated frequency inverters may be supplied on request.
EX-ATEX motors
Fan sets of centrifugal fans according to Ex-ATEX execution are equipped with motors of the correspondent category.
For frequency inverter operation the motors will be of pressure resistant execution.
Speed regulation
A suitable speed variation system is required for the optimum adjustment of the
desired operating point.
Our frequency converters are perfectly tuned for the operation of RZR centrifugal fans.
The use of the newest power semi-conductors guarantees high efficiency and minimum motor noise thanks to the especially fine pulse pattern.
See also the technical description "Performance".
Electric connection
Centrifugal fan systems are delivered ready for installation. The motor terminal box
can be easily accessed.
Electric installation must be carried out according to the applicable provisions in
compliance with local regulations. A terminal board circuit diagram showing correct
connection is enclosed with every motor.
Attachment points on the side plates ADH/RDH
ADH/RDH 0160/-0180
g
m
hh
d
p
0160
0180
a
281
310
b
291
326
c
205
229
d
141
157
e
119
131
f
172
195
g
140
153
h
30
30
m
92
92
n
121
141
p
67
81
r
155
175
s
101
115
ø
4
4
p
s
e
hh
b
m
r
c
n
f
ø
a
hh
ADH/RDH 0200/-0250
g
a
h h
z
d
0200
0225
0250
a
341
379
416
0200
0225
0250
p
134
152
171
x
u
p
e
h h
b
m
c
n
v
r
f
ø
m
m
s
h h
m
s
b
362
407
452.5
r
202
229
256
c
256
288
322
s
129
149
172
d
177
199
221
e
147
165
183.5
t
163
185
208
f
215
242
269
u
126
142
155
g
164
180
195
v
190
219
244
h
40
40
40
z
94
114
137
m
110
110
110
x
91
107
120
n
155
184
209
ø
4
4
4
t
91
Belt Driven Centrifugal Fans / Description
Description
Attachment points on the side plates ADH/RDH
ADH/RDH 0280/-0315
ø
g
a
h
0280
0315
d
h
a
b
c
d
e
f
g
h
464 508 361 249 206 302 215 113
515 571 404 279 232 339 236 113
m
71
71
n
p
r
s
t
u
v
ø
170 191 287 169 233 150 245 6.2
195 215 323 197 263 175 284 6.2
n
u
p
e
h
b
h
c
v
r
f
Scroll dimensions are refered to the external surface of the back plate
m
h
s
t
ADH/RDH 0355/-0450
g
o
h
s
h
d
h
h
u
p
e
n
m
b
c
v
r
f
ø
a
m
h
0355
0400
0450
a
576
644
721
b
643
733
817.5
c
453
507
569
d
315
354
399
e
261
302
332.5
f
382
431
485
g
261
290
322
h
156
156
213
m
158
186
168
0355
0400
0450
n
197.5
220
245
o
197.5
230
256
p
241
275
311
r
364
411
466
s
204
243
271
t
295
336
379
u
158
186
168
v
295
346
350
ø
6.2
6.2
M10
Scroll dimensions are refered to the external surface of the back plate
t
ADH/RDH 0500
g
o
h
w
s
h
w
d
0500
a
794
b
906
c
638
d
442
e
368
f
538
g
352
h
231
m
439
n
220
0500
o
281
p
349
r
519
s
280
t
423
u
207
v
400
k
354
w
181
ø
M10
Scroll dimensions are refered to the external surface of the back plate
u
h
u
p
e
b
h
v
c
m
k
n
r
f
ø
a
h
h
t
ADH/RDH 0560/-0710
o
h
w
s
h
w
d
u
h
u
p
e
x
b
h
v
c
m
k
n
ø
a
r
f
g
h
z
h
0560
0630
0710
a
886
993
1119
b
1016
1142
1295
c
715
801
898
d
496
559
634
e
413
463
530
f
603
679
765
g
390
434
485
h
235
235
265
m
490
553.5
626.5
n
245
260
267.5
o
310
353
393
0560
0630
0710
p
389
441
496
r
581
656
737
s
362
431
476
t
472
521
605
u
276
328
371
v
494
567
637
z
310
356
397
x
140
160
200
k
394
–
–
w
180
–
–
ø
M10
M10
M10
Scroll dimensions are refered to the external surface of the back plate
t
Screw to be used to attach mounting feet
92
Size
Type of screw
0160/-0250
0280/-0400
0450/-0710
Self-threading screw
Self-threading screw
Metric screw
Thread
AB 6.3 ISO 1478
AB 8 ISO 1478
M10 ISO 724
Belt Driven Centrifugal Fans / Description
Description
Operating limits ADH
Permissible Permissible Permissible
nominal
fan speed bearing
motor
load
power
ADH
kW
1/min
N
E0-0160
E2-0160
G2E0-0160
G2E2-0160
E0-0180
E2-0180
G2E0-0180
G2E2-0180
E0-0200
E2-0200
E4-0200
G2E0-0200
G2E2-0200
E0-0225
E2-0225
E4-0225
G2E0-0225
G2E2-0225
E0-0250
E2-0250
E4-0250
G2E0-0250
G2E2-0250
G2E4-0250
G2E7-0250
E0-0280
E2-0280
E4-0280
G2E0-0280
G2E2-0280
G2E4-0280
G2E7-0280
E0-0315
E2-0315
E4-0315
E6-0315
G2E0-0315
G2E2-0315
G2E4-0315
G2E7-0315
E0-0355
E2-0355
E4-0355
E6-0355
G2E0-0355
G2E2-0355
G2E4-0355
G2E7-0355
E0-0400
E2-0400
E4-0400
E6-0400
G2E0-0400
G2E2-0400
G2E4-0400
G2E7-0400
E0-0450
E2-0450
E4-0450
E6-0450
G2E0-0450
G2E2-0450
G2E4-0450
G2E7-0450
3
3
3
4
3
3
3
4
4
4
4
4
4
4
4
4
4
4
4
4
7.5
4
4
7.5
15
5.5
5.5
11
5.5
5.5
11
22
5.5
5.5
11
18.5
5.5
5.5
11
30
7.5
7.5
15
22
7.5
7.5
15
30
7.5
7.5
15
22
7.5
7.5
15
37
11
11
15
30
11
11
15
37
4200
4200
3400
3400
4000
4000
3200
3200
3800
3800
3800
2900
2900
3400
3400
3400
2600
2600
2800
2800
3000
2200
2200
2300
2800
2500
2500
2700
2000
2000
2200
2400
2100
2100
2400
2400
1600
1600
1900
2100
1800
1800
2000
2000
1500
1500
1700
1900
1600
1600
1800
1800
1200
1200
1400
1800
1400
1400
1500
1500
1000
1000
1200
1400
420
420
420
420
420
420
420
420
420
420
420
420
420
420
420
420
420
420
420
420
450
420
420
450
1250
530
530
660
530
530
660
1700
530
530
660
1050
530
530
660
2000
840
840
940
1450
840
840
940
2000
840
840
940
1450
840
840
940
2950
1180
1180
1320
1800
1180
1180
1320
2950
Permissible Fan
media
weight
temperature
°C
kg
ADH
Permissible Permissible Permissible
nominal
fan speed bearing
motor
load
power
kW
1/min
N
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +100
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +100
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
5
6.6
10.5
14.5
6
7.8
12.6
17
7.1
9.1
12.6
15
20
8.5
10.7
14.5
18
24
10.5
13
18
22
29
38
44
14.2
18
24
30
39
50
59
18
22
29
30
38
48
60
73
23
29
41
42
49
63
84
98
31
38
52
53
66
82
108
133
42
50
66
67
90
107
135
159
E0-0500
E2-0500
E4-0500
E6-0500
E7-0500
G2E0-0500
G2E2-0500
G2E4-0500
G2E7-0500
E0-0560
E2-0560
E4-0560
E6-0560
E7-0560
G2E2-0560
G2E4-0560
G2E7-0560
L-0630
R-0630
K-0630
K1-0630
K2-0630
G2R-0630
G2K-0630
G2K2-0630
L-0710
R-0710
K-0710
K1-0710
K2-0710
G2K-0710
G2K2-0710
K-0800
K1-0800
K2-0800
G2K-0800
G2K2-0800
K-0900
K1-0900
K2-0900
G2K-0900
G2K2-0900
K-1000
K1-1000
K2-1000
G2K-1000
G2K2-1000
11
11
15
30
37
11
11
15
45
15
15
18.5
30
45
15
18.5
45
15
15
18.5
30
45
15
18.5
55
18.5
18.5
22
37
55
30
75
22
37
55
30
75
30
45
75
37
75
37
45
75
37
75
1200
1200
1300
1400
1400
900
900
1000
1400
1100
1100
1200
1300
1300
800
900
1200
900
900
1000
1100
1100
700
750
1000
750
750
850
900
900
700
800
750
800
800
600
700
650
700
700
500
600
600
600
650
450
500
1180
1180
1320
1800
2200
1180
1180
1320
4000
1450
1450
1760
2550
3700
1450
1760
4000
1450
1450
1760
2550
3700
1450
1760
4000
1800
1800
1900
3550
5800
3000
7000
1900
3550
5800
3000
7000
3000
3900
7000
3000
7000
3000
3900
7000
3000
7000
Permissible Fan
media
weight
temperature
°C
kg
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +100
-20 / +80
-20 / +100
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +100
-20 / +80
-20 / +100
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
57
65
85
86
105
120
140
176
221
72
86
134
142
150
185
268
319
91
106
170
175
180
230
342
393
118
135
201
208
225
532
537
249
261
278
665
670
306
316
320
801
806
333
356
360
894
899
93
Belt Driven Centrifugal Fans / Description
Description
Operating limits AT
Permissible Permissible Permissible
nominal
fan speed bearing
motor
load
power
AT
kW
1/min
N
S-7/7
SC-7/7
G2L-7/7
SC2-7/7
S-9/7
SC-9/7
AR-9/7
G2L-9/7
SC2-9/7
G2C-9/7
S-9/9
SC-9/9
AR-9/9
G2L-9/9
SC2-9/9
G2C-9/9
S-10/8
SC-10/8
AR-10/8
G2L-10/8
SC2-10/8
G2C-10/8
S-10/10
SC-10/10
AR-10/10
G2L-10/10
SC2-10/10
G2C-10/10
S-12/9
SC-12/9
AR-12/9
G2L-12/9
SC2-12/9
G2C-12/9
G3C-12/9
S-12/12
SC-12/12
AR-12/12
G2L-12/12
SC2-12/12
G2C-12/12
G3C-12/12
S-15/11
SC-15/11
AR-15/11
G2L-15/11
SC2-15/11
G2C-15/11
G3C-15/11
S-15/15
SC-15/15
AR-15/15
G2L-15/15
SC2-15/15
G2C-15/15
G3C-15/15
94
3
3
3
3
3
3
7.5
3
3
7.5
3
3
7.5
3
3
7.5
3
3
7.5
3
3
7.5
4
4
7.5
3
3
7.5
5.5
5.5
11
5.5
5.5
11
11
5.5
5.5
11
5.5
5.5
11
11
5.5
5.5
11
5.5
5.5
11
15
5.5
5.5
11
5.5
5.5
11
15
2600
2600
2400
2600
2500
2500
2500
2400
2500
2500
2100
2100
2100
2000
2100
2100
2500
2500
2500
2100
2500
2500
2000
2000
2000
1800
2000
1700
2000
2000
2000
1800
2000
2000
2000
1500
1500
1500
1400
1500
1400
1400
2000
2000
2000
1400
2000
1500
1500
1200
1200
1200
1100
1200
950
1000
350
350
350
350
350
350
620
350
350
1000
350
350
620
350
350
1000
350
350
620
350
350
1000
350
350
620
350
350
1000
620
620
1000
620
620
1200
1200
620
620
1000
620
620
1200
1200
620
620
1000
620
620
1200
1600
620
620
1000
620
620
1200
1600
Permissible Fan
media
weight
temperature
°C
-20 / +85
-20 / +85
-20 / +85
-20 / +85
-20 / +85
-20 / +85
-20 / +100
-20 / +85
-20 / +85
-20 / +100
-20 / +85
-20 / +85
-20 / +100
-20 / +85
-20 / +85
-20 / +100
-20 / +85
-20 / +85
-20 / +100
-20 / +85
-20 / +85
-20 / +100
-20 / +85
-20 / +85
-20 / +100
-20 / +85
-20 / +85
-20 / +100
-20 / +85
-20 / +85
-20 / +100
-20 / +85
-20 / +85
-20 / +100
-20 / +100
-20 / +85
-20 / +85
-20 / +100
-20 / +85
-20 / +85
-20 / +100
-20 / +100
-20 / +85
-20 / +85
-20 / +100
-20 / +85
-20 / +85
-20 / +100
-20 / +100
-20 / +85
-20 / +85
-20 / +100
-20 / +85
-20 / +85
-20 / +100
-20 / +100
kg
5
6
11.7
13.7
6.6
8.3
8.3
14.9
18
23.5
7.9
9.5
9.5
18.1
21.8
27
8.3
9.8
9.8
18.5
21.8
27
9.3
11
11
21.1
23.5
31
12.7
16
16
28.2
34.8
45.5
70
15.2
18.4
18.4
33.8
40.2
51
81
17.7
20.9
20.9
39.7
46.1
57.4
90
20.6
24.5
24.5
45.3
53.1
68
108
AT
S-18/13
SC-18/13
AR-18/13
G2L-18/13
SC2-18/13
G2C-18/13
G3C-18/13
S-18/18
SC-18/18
AR-18/18
G2L-18/18
SC2-18/18
G2C-18/18
G3C-18/18
TIC-20/15
G2C-20/15
G2CC2-20/15
G3C-20/15
G3CC2-20/15
TIC-20/20
G2C-20/20
G2CC2-20/20
G3C-20/20
G3CC2-20/20
TIC-22/15
G2C-22/15
G2CC2-22/15
G3C-22/15
G3CC2-22/15
TIC-22/22
G2C-22/22
G2CC2-22/22
G3C-22/22
G3CC2-22/22
TIC-25/20
G2C-25/20
G2CC2-25/20
G3C-25/20
G3CC2-25/20
TIC-25/25
G2C-25/25
G2CC2-25/25
G3C-25/25
G3CC2-25/25
TIC-28/20
G2C-28/20
G2CC2-28/20
G3C-28/20
G3CC2-28/20
TIC-28/28
G2C-28/28
G2CC2-28/28
G3C-28/28
G3CC2-28/28
TIC-30/20
G2C-30/20
G2CC2-30/20
G3C-30/20
G3CC2-30/20
TIC-30/28
G2C-30/28
G2CC2-30/28
G3C-30/28
G3CC2-30/28
Permissible Permissible Permissible
nominal
fan speed bearing
motor
load
power
kW
1/min
N
Permissible Fan
media
weight
temperature
7.5
7.5
15
7.5
7.5
15
15
7.5
7.5
15
7.5
7.5
15
15
15
18.5
45
18.5
45
15
18.5
45
18.5
45
15
18.5
45
18.5
45
15
18.5
45
18.5
45
15
18.5
45
18.5
45
15
18.5
55
18.5
55
18.5
18.5
55
18.5
55
18.5
18.5
55
18.5
55
18.5
18.5
55
18.5
55
18.5
18.5
55
18.5
55
-20 / +85
-20 / +85
-20 / +100
-20 / +85
-20 / +85
-20 / +100
-20 / +100
-20 / +85
-20 / +85
-20 / +100
-20 / +85
-20 / +85
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
1200
1200
1200
1100
1200
1200
1000
1100
1100
1100
800
800
1000
700
1300
1300
1300
900
1100
1300
900
1200
700
800
1300
1300
1300
800
1000
1200
900
1000
600
800
1000
700
800
600
700
900
700
800
500
600
800
600
800
600
650
800
600
700
400
550
800
600
700
550
600
800
600
700
400
500
620
620
1200
620
620
1600
1600
620
620
1200
620
620
1600
1600
1200
1600
6500
1600
6500
1200
1600
6500
1600
6500
1200
1600
6500
1600
6500
1200
1600
6500
1600
6500
1600
1600
6500
1600
6500
1600
1600
6500
1600
6500
1600
1600
7000
1600
7000
1600
1600
7000
1600
7000
1600
1600
7000
1600
7000
1600
1600
7000
1600
7000
°C
kg
27
33
33
57.8
69.8
91
118
32.5
38.2
38.2
70.5
81.9
106
137
71
137
144
315
319
78
150
158
355
359
73
141
148
340
347
82.5
165
173
425
438
93
195
202
432
436
105
202
210
480
484
120
210
218
474
478
127
235
244
539
543
131
245
253
505
509
138
302
310
577
581
Belt Driven Centrifugal Fans / Description
Description
Operating limits RDH
Permissible Permissible Permissible
nominal
fan speed bearing
motor
load
power
RDH
kW
1/min
N
E0-0180
E2-0180
E0-0200
E2-0200
E4-0200
E0-0225
E2-0225
E4-0225
E0-0250
E2-0250
E4-0250
G2E4-0250
G2E7-0250
E0-0280
E2-0280
E4-0280
G2E4-0280
G2E7-0280
E0-0315
E2-0315
E4-0315
E6-0315
G2E4-0315
G2E7-0315
E0-0355
E2-0355
E4-0355
E6-0355
G2E4-0355
G2E7-0355
E0-0400
E2-0400
E4-0400
E6-0400
G2E4-0400
G2E7-0400
E0-0450
E2-0450
E4-0450
E6-0450
G2E4-0450
G2E7-0450
E0-0500
E2-0500
E4-0500
E6-0500
E7-0500
G2E4-0500
G2E7-0500
E0-0560
E2-0560
E4-0560
E6-0560
E7-0560
G2E4-0560
G2E7-0560
R-0630
K-0630
K1-0630
K2-0630
G2K-0630
G2K2-0630
2.2
2.2
3
3
3
4
4
4
4
4
5.5
5.5
7.5
5.5
5.5
7.5
5.5
11
5.5
5.5
7.5
11
5.5
11
7.5
7.5
11
15
7.5
11
7.5
7.5
15
22
7.5
18.5
11
11
15
30
11
18.5
11
11
15
30
37
11
30
15
15
18.5
30
37
11
30
15
18.5
30
45
15
37
6800
6800
6000
6000
6800
5800
5800
6000
4600
4600
5400
2900
3500
4000
4000
4700
3000
3400
3500
3500
4100
4500
2200
3300
3300
3300
3800
4000
2000
2600
2700
2700
3100
3500
1600
2800
2500
2500
2800
3200
1400
2200
2100
2100
2350
2650
2800
1200
2200
1950
1950
2100
2400
2600
1100
1900
1600
1700
2000
2300
1000
1400
420
420
420
420
420
420
420
420
420
420
450
450
660
530
530
660
660
940
530
530
660
1050
660
1320
840
840
940
1450
940
1320
840
840
940
1450
940
1760
1180
1180
1320
1800
1320
1760
1180
1180
1320
1800
2200
1320
3000
1450
1450
1760
2550
3700
1760
3000
1450
1760
2550
3700
1760
3000
Permissible Fan
media
weight
temperature
°C
kg
RDH
Permissible Permissible Permissible
nominal
fan speed bearing
motor
load
power
kW
1/min
N
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +80
-20 / +80
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +80
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
5.3
7.1
6.6
8.5
11.8
7.8
9.9
13.6
13.3
15.7
21
46
49
17.8
21
28
61
65
21
25
32
34
70
79
29
34
46
47
104
109
36
42
57
58
126
144
50
57
73
75
160
176
62
70
90
92
110
197
235
79
92
141
148
153
301
336
119
173
180
185
370
408
R-0710
K-0710
K1-0710
K2-0710
G2K-0710
G2K2-0710
K-0800
K1-0800
K2-0800
G2K-0800
G2K2-0800
K-0900
K1-0900
K2-0900
G2K-0900
G2K2-0900
K-1000
K1-1000
K2-1000
G2K-1000
G2K2-1000
X1-1120
X2-1120
X1-1250
X2-1250
X1-1400
X2-1400
15
22
37
55
30
75
22
37
55
30
75
30
45
75
37
75
37
45
75
37
75
55
110
75
132
90
160
1300
1500
1700
2000
1400
1700
1200
1400
1650
1150
1400
1100
1250
1500
1000
1100
1000
1000
1300
800
800
900
1170
800
1050
720
930
1800
1900
3550
5800
3000
7000
1900
3550
5800
3000
7000
3000
3900
7000
3000
7000
3000
3900
7000
3000
7000
8000
8000
8000
10000
9000
12500
Permissible Fan
media
weight
temperature
°C
kg
-20 / +80
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
-20 / +100
165
220
240
250
580
586
270
297
305
747
753
343
355
375
883
889
415
430
450
1048
1054
610
890
950
1140
1370
1390
95
Belt Driven Centrifugal Fans / Description
Description
Operating limits RZR
Permissible Permissible Permissible
nominal
fan speed bearing
motor
load
power
RZR
kW
1/min
N
11-0200
12-0200
19-0200
11-0225
12-0225
19-0225
11-0250
12-0250
19-0250
11-0280
12-0280
19-0280
11-0315
12-0315
19-0315
11-0355
12-0355
19-0355
11-0400
12-0400
15-0400
19-0400
18-0400
13-0400
11-0450
12-0450
15-0450
19-0450
18-0450
13-0450
11-0500
12-0500
15-0500
19-0500
18-0500
13-0500
11-0560
12-0560
15-0560
19-0560
18-0560
13-0560
11-0630
12-0630
15-0630
19-0630
18-0630
13-0630
11-0710
12-0710
15-0710
19-0710
18-0710
13-0710
11-0800
15-0800
19-0800
18-0800
13-0800
11-0900
15-0900
19-0900
96
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
11
7.5
7.5
11
7.5
7.5
11
7.5
7.5
30
30
30
30
7.5
7.5
30
30
30
30
7.5
7.5
30
30
30
30
15
15
37
37
37
37
15
15
37
37
37
37
18.5
18.5
55
55
55
55
22
55
55
55
55
22
75
75
7490
7490
7490
6640
6640
6640
5250
5250
5970
5235
5235
5300
4418
4418
4730
3200
3200
4187
3027
3027
3600
3600
3600
3600
2504
2504
3360
3360
3360
3360
2050
2050
2920
2920
2920
2920
2205
2205
2400
2400
2490
2490
1838
1838
1880
1880
2380
2380
1627
1627
2000
2000
2120
2120
1300
1470
1470
1700
1700
1000
1430
1430
480
480
480
500
500
500
540
540
540
630
630
850
660
660
910
720
720
950
1020
1020
1970
1970
1970
1970
1080
1080
2000
2000
2000
2000
1140
1140
2040
2040
2040
2040
1830
1830
2950
2950
2950
2950
1960
1960
3000
3000
3000
3000
2080
2080
4400
4400
4400
4400
2150
4500
4500
4500
4500
2180
6000
6000
Permissible Fan
media
weight
temperature
°C
kg
RZR
Permissible Permissible Permissible
nominal
fan speed bearing
motor
load
power
kW
1/min
N
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
11
12
13
13
15
16
15
17
17
20
23
23
24
27
28
33
36
39
43
49
61
66
70
75
54
60
73
82
83
92
65
72
94
105
105
116
103
109
125
136
140
151
124
132
149
162
167
180
177
194
201
225
230
254
250
250
280
289
319
358
358
396
18-0900
13-0900
11-1000
15-1000
19-1000
18-1000
13-1000
13-1120
13-1250
13-1400
13-1600
75
75
22
75
75
75
75
132
160
200
250
1540
1540
800
1140
1140
1400
1400
1220
1100
1000
860
6000
6000
2200
6200
6200
6200
6200
10000
15000
20000
20000
Permissible Fan
media
weight
temperature
°C
kg
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
-20 / +80
409
447
416
416
462
471
517
710
1100
1390
1870
Belt Driven Centrifugal Fans / Description
Description
Performance
The curves show the total pressure rise pF as a function of the volume flow rate qV
plotted in a double logarithmical diagram. The throttle curves (system resistance
parabolas) are then represented by straight lines.
The curves are established with a reference density of r1 = 1.2 kg/m³ at the fan
intake.
The pressure and impeller input power are directly proportional to density r1.
Outlet velocity v2 and the dynamic pressure pd2 refer to the flanged cross section area
at the fan discharge.
psF = pF – pd2
The increase in static pressure psF when a duct is fitted to the discharge (Installation
B) can be calculated from the equation:
psF = pF – fpd × pd2
Where no duct is fitted (Installation A) there is no static pressure regain. The increase
in pressure psF can be calculated from formula:
The limits of application indicated in the fan curves (by blue dotted lines)
outline the recommended functional range of the fans, where a stable
operation with high efficiency can be expected.
The efficiency marked on the straight system lines is only applicable at the maximum
fan speed Nmax; it decreases with lower fan speed.
RDH
ADH
0160/-0560
0630/-1000
fpd 1.9
1.66
RZR 0200/-1000 see fan curves
RZR
0180/-1000
1.74
1120/-1400
1.15
1120/-1600
1.00
10/10
2.24
22/22
2.42
12/12
1.94
25/25
2.49
15/15
2.17
30/20
2.44
AT
fpd
fpd
Pr
a = r ×—
Pr + Pb
7/7
1.96
18/18
1.86
9/7
2.16
20/15
2.48
9/9
1.95
20/20
2.26
10/8
2.08
22/15
2.46
12/9
1.83
25/20
2.48
15/11
2.10
28/20
2.37
18/13
1.98
30/28
2.41
Efficiency ADH / AT / RDH
The performance curves Pr of the fan curve diagram correspond to the absorbed
power of the fan impeller.
The vertical scales shown at the right side of the diagram indicate the bearing power
loss Pb of the different fan executions and depending on the fan speed.
The resulting power absorbed on fan shaft is found by adding the absorbed power Pr
of the fan impeller and the bearing power losses Pb. As a consequence the resulting
fan efficiency is to be calculated according to the formula:
Efficiency RZR
The actual efficiency value for a fan speed lower Nmax is calculated by multiplying the
efficiency at Nmax by the factor fh for the appropriate speed. (fh to be found with the
scale on the right side of the page).
PN  Pa × fP
Motor nominal power ADH / AT / RDH / RZR
To determine the motor rating PN, the fan absorbed shaft power Pr must be increased
by a safety factor to accommodate belt drive losses and possible fan speed
differences.
The factor fp is an estimated value. As an approximate value, the figures below are
suggested.
ADH / AT
Pa < 0.75 kW
Pa ≥ 0.75 kW ... < 10kW
Pa ≥ 10 kW
RDH / RZR
fp = 1.30
fp = 1.20
fp = 1.15
Pa < 0.75 kW
Pa ≥ 0.75 kW ... < 10 kW
Pa ≥ 10 kW
fp = 1.25
fp = 1.15
fp = 1.12
97
Belt Driven Centrifugal Fans / Description
Description
Performance
8 × J × N²
tA =—
PN × 106
When selecting the motor, the run up time must be checked whether being within
permitted limits.
The run up time can be worked out approximately according to the following formula:
where:
tA = run time in seconds
J = moment of inertia in kgm²
N = fan speed in rpm
PN = nominal motor power in kW
(Impeller weight and moment of inertia can be found on the performance diagram for
each fan size.)
If tA exceeds the motor manufacturer‘s recommendation or the tripping period of the
electrical gear, a larger motor must be used or the starting gear has to be selected for
heavy starting.
1 = Test fan
2 = Discharge duct
3 = Screen
4 = Multiple nozzles
5 = Auxiliary fan and damper
Fan curves measurement ADH / AT / RDH - AMCA 210-99 / ISO 5801
1
2
3
4
5
pe4
1 = Test fan
2 = Discharge duct acting as a pressure regain unit
3 = Screen
4 = Variable damper
5 = Compensating fan
6 = Flow straightener
7 = Inlet cone
pe6
p
Fan curves measurement RZR - ISO 5801 / DIN 24163
2
1
3
4
5 6
pa
ta
t1
psF
qV = f(po)
7
po
Performance data of twin fan units
The performance data of twin fan units (Identification "G2") can be calculated, starting
from that in the corresponding operating point of a single fan, with the following
formulas:
A Fan Pressure:
pF G2 = pF × 1
A Volume flow rate:
qV G2 = qV × 2
A Fan shaft power:
Pa G2 = Pa × 2,15
AR
otational speed:
N G2 = N × 1,05
A Sound:LWA G2 = LWA + 3 dB
AMCA
Nicotra Gebhardt S.p.A. (Italy) certifies that
ADH E fans of the E0, E2, E4, E6 and E7 versions, from sizes 0160 to 0560,
RDH E fans of the E0, E2, E4, E6 and E7 versions, from sizes 0180 to 0560,
ADH and RDH fans of the L, R, K, K1 and K2 versions, from sizes 0630 to 1000,
AT fans of the S, SC, C and TIC versions, from sizes 7/7 to 30/28,
shown herein are licensed to bear the AMCA Seal.
Nicotra Gebhardt GmbH (Germany) certifies that RZR fans of the 11, 12, 15 versions,
from sizes 0355 to 1000, shown herein are licensed to bear the AMCA Seal.
The ratings shown are based on tests and procedures performed in accordance
with AMCA Publication 211 and comply with the requirements of the AMCA Certified
Ratings Program.
Air performance with Installation Type “A” (“with free outlet”), and that of the twin fan
versions G2L, G2R, G2K, G2K2, G2E0, G2E2, G2E4, G2E7, SC2, G2C and G2C-C2,
and that of the triple fan versions G3C and G3C-C2 in any installation type is not
AMCA licensed.
98
Belt Driven Centrifugal Fans / Description
Description
Sound
Noise measurements are undertaken in accordance with DIN 45635-38 “Noise
Measurement of Machines: Fans”.
Induct Method for the Discharge
The induct method is specified with DIN EN ISO 5136. It determines the sound power
emitted at discharge of a test fan.
The test duct, as a main feature, is equipped with an anechoic termination fitted to
avoid end reflection going back into the duct.
Envelope Method – Free Inlet
The Envelope Method is described with DIN 45635-1 and -38, which specifies a
hypothetical box shaped measurement surface with several prescribed measurement
points.
1 = Air permeable sound screen
2 = Microphone positions for envelope method
3 = Test fan
4 = Measuring duct
5 = Microphone with sampling tube
6 = Anechoic termination
7 = Step less adjustable throttle
1
2
3
4
5
6
7
Lp4
Lp7
psF
The sound data of the fan curves are given as “A” weighted sound power levels.
A-sound power level RZR
The “A” weighted sound power level are identical for fan intake (LWA7) as well as for
fan discharge (LWA4).
LWA4 = LWA7 + LWrel4(A)
ADH / AT / RDH:
LWfc7 = LWA7 + LWrel7
LWfc4 = LWA7 + LWrel4
RZR:
LWfc7 = LWA4;7 + LWrel7
LWfc4 = LWA4;7 + LWrel4
A-sound power level ADH / AT / RDH
The “A” weighted sound power level (see curves) are apply for fan intake (LWA7). The
fan discharge sound power level LWA4 is obtained by calculating:
The correction value DLWrel4(A) is found with the table (left below) at the corresponding
fan curve page (ADH / RDH) by introducing fan speed and flow rate.
An approximation of the “A” weighted sound pressure levels LpA7/LpA6 at a distance
of 1 m may be obtained by subtracting 7 dB from the relative “A” weighted sound
power levels.
If should be noted that site acoustics, duct design, reverberation, natural frequencies
etc. can all influence noise to a greater or lesser extent.
For more accurate calculations to determine noise protection measures, the sound
power level in each octave band is of more value:
The noise correction data LWrel4 und LWrel7, in function of the fan speed and flow rate,
are to be found with the corresponding table on the fan curve page.
In some cases the noise level - calculated by this way - may in some cases be higher
than expected at the blade passing frequency.
N×z
fBP =—
60
fs = Blade passing frequency in Hz
N = Fan speed in 1/min
z = No of blades (see curve pages)
99
Belt Driven Centrifugal Fans / Description
Description
Sound
LWfc6 = LWfc4 + LWer
For a free discharge situation i.e. without duct connected the sound level will be lower
because of an end reflection.
This is specially true for low frequencies. For this case a correction may be applied to
LWfc4 of the first 3 octave bands as follows:
ADH / AT / RDH / RZR
0160/-0280
0315/-0800
0900/-1600
fc
63
125
250
Hz
LWer
LWer
LWer
-14
-9
-4
-9
-4
-1
-4
-2
0
dB
dB
dB
Explosion protection according to ATEX
Fans for use in explosive atmospheres must comply with EC Directive 94/9/EG
(ATEX 95). Equipment in Group II (all applications except mining) is categorised in
accordance with the required degree of safety for designated use in equipment
categories 1, 2 and 3. Depending on suitability, a distinction is in addition made
between G (gas, vapours) and D (dust).
Harmonised European standards and national guidelines must be observed.
Equipment in class 2 and 3 is not subject to compulsory specifications nor to type
testing. The manufacturer declares conformity with the EC directive.
For the standard designs of our fans, the following ignition sources are
essentially to be considered:
A Hot surfaces, e.g. due to heat of friction or seizure of a bearing or due to blockage
of an impeller
A Rubbing-, grinding- or beating sparks, e.g. as a result of contact of the impeller with
stationary components
A Sparks resulting from discharge of electrostatically loaded, non-conducting
omponents, e.g. of plasticpanels, surfaces with strong layer thickness.
Preconditions for operating:
A In the proximity of the motor, the temperature limits -20 °C and +40 °C must
not be exceeded.
A The temperature limits of -20 °C und +60 °C for the flow medium must not
be exceeded. If the temperature of the flow medium should exceed +60 °C
on the pressure side, then the fan must be switched off!
A The fans may only be employed with a horizontal shaft.
A The fans are to be protected against the falling-in or sucking-in of foreign
objects. Protection guards must be ordered separately as an accessories.
A On the machine plate the max. permitted fan speed is indicated.
A Fans for operation in ex-hazardous areas are marked as such on the
machine plate and they are accompanied by an EU conformity declaration
and with operation and maintenance instructions.
The operation and maintenance instructions have strictly to be observed.
The conformity is always related to the fan system supplied.
If the fan is completed with motor and belt drive by the customer the conformity of
this fan set has to be declared at new.
Fans of the series ADH / AT / RDH in ATEX-Execution on request.
100
Belt Driven Centrifugal Fans / Description
Description
Operating limits RZR ATEX
Permissible fan speed
RZR
1/min
Permissible shaft power Permissible nominal
motor power
kW
kW
11-0200-2G
12-0200-2G
19-0200-2G
11-0225-2G
12-0225-2G
19-0225-2G
11-0250-2G
12-0250-2G
19-0250-2G
11-0280-2G
12-0280-2G
19-0280-2G
11-0315-2G
12-0315-2G
19-0315-2G
11-0355-2G
12-0355-2G
19-0355-2G
11-0400-2G
12-0400-2G
13-0400-2G
18-0400-2G
11-0450-2G
12-0450-2G
13-0450-2G
18-0450-2G
11-0500-2G
12-0500-2G
13-0500-2G
18-0500-2G
11-0560-2G
12-0560-2G
13-0560-2G
18-0560-2G
11-0630-2G
12-0630-2G
13-0630-2G
18-0630-2G
11-0710-2G
12-0710-2G
13-0710-2G
18-0710-2G
11-0800-2G
18-0800-2G
13-0800-2G
11-0900-2G
18-0900-2G
13-0900-2G
11-0100-2G
18-1000-2G
13-1000-2G
13-1120-2G
13-1250-2G
13-1400-2G
13-1600-2G
6513
6513
6513
5774
5774
5774
4620
4620
5076
4582
4582
4582
3793
3793
4113
3110
3110
3555
2552
2552
3145
2913
2111
2111
2922
2410
1752
1752
2534
2000
1660
1660
2163
1660
1367
1367
2055
1367
1128
1128
1825
1128
927
927
1474
767
767
1339
650
650
1217
1026
957
870
748
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
4.7
6.5
6.5
9.7
6.5
6.5
9.7
6.5
6.5
9.7
6.5
6.5
16.4
9.7
6.5
6.5
21.3
9.7
6.5
6.5
21.3
9.7
9.7
9.7
26.6
9.7
9.7
9.7
32.8
9.7
9.7
9.7
40.9
9.7
9.7
9.7
40.9
9.7
9.7
68
9.7
9.7
68
83.6
122
145
181
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
7.5
7.5
11
7.5
7.5
11
7.5
7.5
11
7.5
7.5
18.5
11
7.5
7.5
24
11
7.5
7.5
24
11
11
11
30
11
11
11
37
11
11
11
45
11
11
11
45
11
11
75
11
11
75
92
135
160
200
101
Belt Driven Centrifugal Fans / Description
Description
Symbol / Unit / Definition
The following symbols are used in this catalogue:
A-A 102
-
The following symbols are used in this catalogue:
Operational range (free discharge)
PN kW
Motor power (nominal)
A2mm²
Fan outlet area
psF Pa
Fan static pressure (free discharge)
b
mm
Deflection of belt under test force
gp Pa
Differential pressure
Dr mm
Impeller diameter
gp0 Pa
Pressure difference at the inlet measuring device
fBP Hz
Blade passing frequency
gpDü Pa
Pressure difference at the inlet cone
fc Hz
Octave centre frequency
qv Volume flow rate
fp -
Motor size correction factor
qVopt m³/h
Volume flow at optimum efficiency
Fp N
Test force
RW J/kg×K
Specific gas constant
fpd -
Dynamic pressure correction factor (free discharge)
t
°C
Temperature of flow medium
fh -
Correction at actual efficiency
ta °C
Temperature of discharge air in test chamber
J
kgm²
Moment of inertia
tA s
Acceleration time
K
m²s/h
Calibration factor for volumeter
t1 °C
Air temperature
LT mm
Centre distance
Θ
K
Thermodynamic temperature at fan inlet
LMg mm
Measuring marks before tensioning (flat belts)
u
m/s
Tip speed
LMu mm
Measuring marks after tensioning (flat belts)
v2 m/s
Outlet velocity
LpA4 dB
A weighted sound pressure level (discharge)
vm2 m/s
Average fluid velocity at discharge
LpA7 dB
A weighted sound pressure level (inlet)
X
mm
Pulley position on shaft extension relative to bearing
LWA dB
A weighted sound power level
z
-
No. of blades
LWA4 dB
In duct sound power level (discharge)
e* mm
Stretching value of flat belt
LWA7 dB
Casing and free inlet sound power level
ha %
Total efficiency at max speed
LWfc4 dB
Discharge sound power in the octave bands
hr %
Impeller efficiency
LWfc7 dB
Inlet sound power in the octave band
hs %
Fan total efficiency at max speed
LWrel4 dB
Relative sound power (discharge)
rkg/m²
Air density
LWrel7 dB
Relative sound Power (inlet)
r1 Air density at fan inlet
L10h h
Nominal bearing life
m
kg
Mass
N
1/min
Fan speed
Nmax 1/min
Maximum fan speed
pa Pa
Atmospheric pressure
Pa kW
Absorbed fan power
Pb kW
Bearing power losses
pd2 Pa
fan dynamic pressure at discharge
pF Pa
Total fan pressure
m³/h
kg/m²
Belt Driven Centrifugal Fans / Description / Notes
Notes
Quality management system
DIN EN ISO 9001
Nicotra Gebhardt quality is the result of a continuous company policy intended to
guarantee that our product properties and features are clearly superior to comparable
products.
This already established company maxim led in April 1985 to the auditing and
certification of the existing quality management system. In the following years it was
updated to match the changing international and European standards. Modern
production processes, monitored by our quality management system, guarantee a
high repeat accuracy in production.
This ongoing high standard of quality permits the establishing of the performance
data in classes of accuracy in accordance with DIN 24166.
The narrow tolerances ensure a high level of data reliability for our products.
Machine Safety
The fans contained in this catalogue are not machines in the sense of the EC Machine
Directive. They are delivered with a manufacturer "Declaration of incorporation".
The assessment of the dangers associated with the fan and necessary safety
measures are based on the VDMA Unit sheet 24167: Fans; Safety requirements.
The operating instructions give which safety measures are still necessary on assembly
to ensure that the fans comply with the Machine Directive 2006/42/EC.
Catalogue data
We reserve the right to change any measurements and technical data in this
catalogue in accordance with further development of our products. All information
valid at the time of printing.
103
nicotra-gebhardt.com
AUSTRALIA
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Epping, VIC 3076
Phone +61 3 9017 5333
Fax
+61 3 8401 3969
E-mail info@nicotra.com.au
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Phone +32 (0)9-336-00-01
Fax
+32 (0)9-336-00-05
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Guangzhou 511450
PR CHINA
Phone +86 (0)20-2293 5700
Fax
+86 (0)20-2293 5701
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69340 Francheville
Phone +33 (0)4 72 79 01 20
Fax
+33 (0)4 72 79 01 21
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Phone +49 (0)7942 101 0
Fax
+49 (0)7942 101 170
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South Yorkshire
S62 6JQ
Phone +044 01709-780760
Fax
+044 01709-780762
E-mail sales@nicotra.co.uk
INDIA
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Greater Noida-201 308 U.P (India)
Phone +91 120 4783400
Phone +91 22 65702056 (Mumbai)
Phone +91 80 25727830 (Bangalore)
E-mail info@nicotraindia.com
ITALY
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24040 Zingonia (BG)
Phone +39 035 873 111
Fax
+39 035 884 319
E-mail info@nicotra-gebhardt.com
104
MALAYSIA
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43300 Seri Kembangan
Selangor
Phone +603 8961-2588
Fax
+603 8961-8337
E-mail info_malaysia@nicotra-gebhardt.com
SPAIN
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28810 Villalbilla-Madrid
Phone +34 918-846110
Fax
+34 918-859450
E-mail info@nicotra.es
SINGAPORE
3, Science Park Drive, # 04-07, The Franklin
Singapore Science Park 1
Singapore 118223
Phone +65 6265 1522
Fax
+65 6265 2400
E-mail info_singapore@nicotra-gebhardt.com
Nicotra Gebhardt Germany
Nicotra Gebhardt Italy
Nicotra Gebhardt GmbH
Gebhardtstraße 19-25
74638 Waldenburg
Germany
Phone +49 (0)7942 101 0
Fax +49 (0)7942 101 170
E-Mail info@nicotra-gebhardt.com
Nicotra Gebhardt S.p.A
Via Modena, 18
24040 Zingonia (BG)
Italy
Phone +39 035 873 111
Fax +39 035 884 319
E-Mail info@nicotra-gebhardt.com
SWEDEN
Kraketorpsgatan 30
43153 Mölndal
Phone 0046 101-302600
Fax
0046 31-878590
E-mail info.se@nicotra-gebhardt.com
THAILAND
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Kwang Jomthong, Khet Jomthong,
Bangkok 10150
Phone +662 476-1823-6
Fax
+662 476-1827
E-mail sales@nicotra.co.th
UNITED STATES
PO BOX 900921
Sandy, Utah 84090
Phone 001(801) 733-0248
Fax
001(801) 315-9400
Mobile 001(801) 682 0898
E-mail mike.sehgal@gebhardtfans.com
http://www.gebhardtfans.com/
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