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Features
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- The ILT/ILB range of centrifugal low-pressure fans are suitable for many general ventilation applications where the fan is required to be installed within a rectangular ducted ventilation system or where the space for installation is limited.
- Due to the configuration for the design, the dimension of the fan section would be no greater than that of the proposed nominal ducting.
- Typical installations would include:
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- Commercial offices air extract/supply. - Car park supply air. - Restaurants.
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- The range comprises of eight nominal model sizes, covering 23 models in total.
- The range is available with single 230V 50Hz or three phase 230/400V 50Hz motors in 4,6 and 8 pole speeds.
- Air volume performance ranges from 1,090 up to 10,235 m³/hr.
- All models are suitable for mounting in any orientation and operation within ambient air temperatures between -40°C up to +70°C.
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Casing |
- The fan casings are manufactured from heavy gauge galvanised sheet steel.
- All models incorporate an inspection cover that can be removed to access the motor/impeller assembly without having to remove the complete fan casing from the ducting.
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Motor Impeller
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- All models incorporate direct-drive low pressure forward curve centrifugal impellers.
- The impeller is factory matched to the motor and the complete assembly is dynamically balanced to ISO 1940 standards.
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Motors
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- All motors incorporate asynchronous induction motors with squirrel cage rotor in die cast aluminium and are manufactured in accordance with IEC 34-1 standard.
- The following specifications apply;
- Single Phase 230V 50HZ - Three Phase 230/400V 50 Hz - IP55 protection - Class F insulation - Thermal Overload Protection - Sealed for Life, ball bearing assemblies - Remote mounting wiring outlet box. (800mm lead length) |
Dimensions
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Model |
A |
B |
C |
D |
E |
F |
G |
HØ |
200 |
505 |
400 |
198 |
440 |
220 |
440 |
240 |
9 |
225 |
535 |
500 |
248 |
520 |
270 |
540 |
290 |
9 |
250 |
565 |
500 |
298 |
520 |
320 |
540 |
340 |
9 |
285 |
645 |
600 |
298 |
620 |
320 |
640 |
340 |
9 |
315 |
725 |
600 |
348 |
620 |
370 |
640 |
390 |
9 |
355 |
785 |
700 |
398 |
720 |
420 |
740 |
440 |
9 |
400 |
885 |
800 |
498 |
820 |
520 |
840 |
540 |
9 |
450 |
985 |
1000 |
498 |
1020 |
520 |
1040 |
540 |
9 |
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Dimension |
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Max abs |
Max abs current A |
Max air Volume |
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Model |
mm |
r.p.m. |
power W |
230V |
400V |
m3/h |
dB(A) |
Kg |
4 Pole single phase |
ILB/4-200 |
400x200 |
1240 |
240 |
1.15 |
- |
1090 |
57 |
15 |
ILB/4-225 |
500x250 |
1130 |
520 |
2.45 |
- |
1670 |
65 |
20 |
ILB/4-250 |
500x300 |
1130 |
950 |
4.40 |
- |
2350
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66 |
25 |
6 Pole single phase |
ILB/6-225 |
500x250 |
800 |
200 |
1.00 |
- |
1080 |
56 |
20 |
ILB/6-250 |
500x300 |
800 |
310 |
1.520 |
- |
1500 |
57 |
25 |
ILB/6-285 |
600x300 |
825 |
660 |
3.20 |
- |
2650 |
62 |
32 |
ILB/6-315 |
600x350 |
810 |
710 |
3.40 |
- |
2780 |
62 |
40 |
ILB/6-355 |
700x400 |
800 |
1300 |
6.30 |
- |
4070 |
64 |
60 |
4 Pole three phase |
ILT/4-200 |
400x200 |
1270 |
260 |
0.90 |
0.52 |
1150 |
57 |
15 |
ILT/4-225 |
500x250 |
1160 |
500 |
1.70 |
0.98 |
1700 |
65 |
20 |
ILT/4-250 |
500x300 |
1170 |
930 |
3.00 |
1.77 |
2650 |
66 |
25 |
ILT/4-285 |
600x300 |
1070 |
1260 |
4.15 |
2.40 |
3100 |
68 |
32 |
ILT/4-315 |
600x350 |
1390 |
2440 |
8.00 |
4.60 |
4160 |
70 |
42 |
6 Pole three phase |
ILT/6-225 |
500x250 |
840 |
220 |
1.00 |
0.57 |
1185 |
56 |
20 |
ILT/6-250 |
500x300 |
800 |
280 |
1.00 |
0.57 |
1630 |
57 |
25 |
ILT/6-285 |
600x300 |
840 |
670 |
2.30 |
1.33 |
2700 |
62 |
32 |
ILT/6-315 |
600x350 |
900 |
710 |
2.5 |
1.44 |
2820 |
62 |
40 |
ILT/6-355 |
700x400 |
875 |
1380 |
5.20 |
3.00 |
4200 |
64 |
65 |
ILT/6-400 |
800x500 |
950 |
3000 |
11.00 |
6.37 |
7400 |
69 |
80 |
ILT/6-450 |
1000x500 |
900 |
5350 |
17.30 |
10.00 |
10850 |
71 |
100 |
8 Pole three phase |
ILT/8-355 |
700x400 |
600 |
614 |
2.31 |
1.33 |
3030 |
56 |
65 |
ILT/8-400 |
800x500 |
710 |
1340 |
4.93 |
2.84 |
5350 |
59 |
80 |
ILT/8-450 |
1000x500 |
675 |
2380 |
7.71 |
4.45 |
8000 |
65 |
100 |
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Sound Data
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Acoustic Characteristics
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Radiated Sound Power Level (LwA) |
Radiatd Sound Power Level Spectrum (LwA) at corresponding octave band averages (Hz) |
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Model |
125 |
250 |
500 |
1000 |
2000 |
4000 |
8000 |
4-200 |
63.0 |
64.0 |
62.0 |
57.5 |
50.0 |
43.5 |
33.0 |
4-225 |
69.5 |
73.0 |
70.5 |
64.0 |
58.0 |
50.0 |
40.0 |
6-225 |
63.0 |
66.0 |
63.5 |
57.0 |
51.0 |
43.0 |
33.0 |
4-250 |
72.5 |
71.0 |
70.0 |
65.5 |
60.5 |
53.0 |
44.0 |
4-285 |
63.5 |
62.0 |
61.5 |
56.5 |
51.5 |
44.0 |
35.0 |
6-250 |
73.5 |
74.0 |
73.5 |
66.0 |
62.0 |
53.0 |
43.0 |
4-285 |
67.5 |
68.0 |
67.5 |
60.5 |
56.0 |
47.5 |
37.5 |
6-285 |
77.5 |
74.0 |
74.5 |
72.0 |
70.0 |
61.5 |
49.0 |
4-315 |
68.0 |
64.0 |
65.0 |
62.0 |
60.5 |
52.0 |
49.5 |
6-315 |
70.5 |
69.0 |
70.0 |
63.5 |
61.5 |
51.0 |
41.0 |
6-355 |
62.0 |
60.0 |
61.5 |
55.0 |
52.5 |
42.5 |
32.5 |
8-355 |
75.0 |
74.0 |
74.0 |
70.0 |
66.5 |
57.5 |
46.0 |
6-400 |
69.0 |
67.5 |
68.0 |
63.5 |
60.5 |
49.5 |
40.0 |
8-400 |
78.0 |
76.5 |
76.0 |
71.5 |
69.5 |
58.0 |
48.5 |
6-450 |
72.0 |
70.5 |
70.0 |
65.5 |
63.5 |
52.0 |
42.5 |
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In-Duct Sound Power Level (LwA) |
In-Duct Sound Power Level Spectrum (LwA) at the corresponding octave band averages (Hz) |
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Model |
125 |
250 |
500 |
1000 |
2000 |
4000 |
8000 |
4-200 |
63.0 |
66.0 |
70.0 |
71.5 |
70.0 |
69.5 |
61.5 |
4-225 |
69.5 |
74.5 |
78.5 |
78.0 |
77.5 |
76.0 |
68.0 |
6-225 |
63.0 |
67.5 |
71.5 |
71.0 |
70.5 |
69.0 |
61.0 |
4-250 |
72.5 |
74.0 |
79.5 |
80.5 |
81.5 |
80.0 |
73.0 |
4-285 |
63.5 |
65.5 |
70.5 |
72.0 |
73.0 |
71.0 |
64.5 |
6-250 |
73.5 |
77.0 |
82.0 |
81.0 |
83.0 |
80.0 |
72.0 |
4-285 |
67.5 |
71.0 |
76.5 |
75.0 |
77.0 |
74.0 |
66.0 |
6-285 |
77.5 |
82.5 |
87.5 |
89.5 |
91.5 |
89.5 |
82.0 |
4-315 |
68.0 |
73.0 |
78.0 |
803.0 |
82.0 |
80.0 |
72.5 |
6-315 |
70.5 |
78.0 |
84.0 |
83.0 |
84.5 |
81.0 |
73.0 |
6-355 |
62.0 |
69.5 |
75.5 |
74.0 |
76.0 |
72.5 |
64.5 |
8-355 |
75.0 |
83.5 |
88.5 |
89.0 |
90.0 |
86.0 |
78.5 |
6-400 |
69.0 |
77.0 |
82.5 |
83.0 |
84.0 |
80.0 |
72.0 |
8-400 |
78.0 |
86.5 |
90.5 |
91.0 |
93.0 |
88.5 |
81.0 |
6-450 |
72.0 |
80.0 |
84.5 |
85.0 |
87.0 |
82.5 |
75.0 |
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Performance
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Q = Air volume in m3/hr and m3s |
PE = Static pressure in mm WG and Pa |
Dry air at 20ºC and 750mmHG |
Air flow data in accordance with the following standards: UNE 100-21-89, BS848, Part 1, AMCA 210-85 and ASHRAE 51-1985 |
The curves shown represent different performances obtained using an RMB-RMT auto-transformer speed control at different speed settings. |
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Ancillaries
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Auto Cad
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ILB ILT 200 |
ILB ILT 225 |
ILB ILT 250 |
ILB ILT 285 |
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ILB ILT 315 |
ILB ILT 355 |
ILB ILT 400 |
ILB ILT 450 |
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PDF
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