In-Line Duct Fans - ILT / ILB Series

  Features

  • 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:

          - Commercial offices air extract/supply.
          - Car park supply air.
          - Restaurants.

  • 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.
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.

Motor     Impeller

  • 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.

  Motors

  • 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

 
 
Model  A B C D E F G
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
 
  Dimension   Max abs Max abs current A Max air Volume  
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

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

  Sound Data

Acoustic Characteristics

Radiated Sound Power Level (LwA)
Radiatd Sound Power Level Spectrum (LwA) at corresponding octave band averages (Hz)
 

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
 
In-Duct Sound Power Level (LwA)
In-Duct Sound Power Level Spectrum (LwA) at the corresponding octave band averages (Hz)
 
 
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

  Performance

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.
 
 
 
 
 

  Ancillaries

  Auto Cad

 
   
ILB ILT 200 ILB ILT 225 ILB ILT 250 ILB ILT 285
Download AUTO CAD file Download AUTO CAD file Download AUTO CAD file Download AUTO CAD file
       
ILB ILT 315 ILB ILT 355 ILB ILT 400 ILB ILT 450
Download AUTO CAD file Download AUTO CAD file Download AUTO CAD file Download AUTO CAD file
     

PDF

 

   
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