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(PS/) SNS-XL (RAL9016) • Square nozzle diffusers with square pattern and XL nozzles

Multinozzle ceiling diffusers with high induction rate, consisting of a square plate with individual adjustable nozzles arranged in a square pattern and to be equipped with a plenum box.

The nozzles are designed to create a high Coanda effect at both low and high flow rates.

PS/SNS-XL = diffuser SNS-XL in plate 596 X 596

Brand

  • Cairox

Application

  • For air supply and exhaust in ventilation and air conditioning systems.

Material

  • Steel and plastic composite combination

Colour

  • Standard colour white, RAL 9016
  • Nozzles and diffuser also available in RAL 9010 and 9005, price on request

Composition

  • Frontplate made of powder coated steel
  • Nozzles made out of Bayblend® a blend of ABS and polycarbonate made of recycled plastics
  • Central screw mounting

Mounting

  • Fixing by central screw in the crossbar of the plenum box.

Accessories

  • Polystyrene plenum box, type PPS-P with duct connection PPS-APD and mounting bar PPS-MB

  • Non-insulated square plenum box, type REV-B
  • Insulated square plenum box, type REV-B ISO
  • Regulating valve for plenum box,type CRC
  • Non-insulated square plenum box for SNS-XL 600-80, type REF 595/450

Text for tender

Kopiëren
  • The air supply ceiling diffusers are square with a square arranged nozzlepattern. They are made of a steel powdercoated frontplate in white finish RAL 9016 and nozzles in plastic composite materials. The diffusers are standard delivered with galvanized steel plenumbox equipped with perforated plate and damper in the side entry spigot. The diffuser is centrally screw mounted.
  • Cairox Type (PS)/SNS-XL

Order example

  • SNS-XL, 600-64 + PPS-P 600 + PPS-APD 250 + PPS-MB

Explanation

SNS-XL= Diffuser type

600 = Diffuser size

64 = Number of nozzles

Accessories

PPS-P 600 = Plenum box

PPS-APD 250 = Plenum box connection diameter

PPS-MB = mounting bar for PPS-P plenum

Articles

Article selection assistant
Type
Cooling capacity [kW]
Heating Capacity* [kW]
# pipes
AC or EC engine
Horizontal or vertical
Hydraulic connection
Article number Type Cooling capacity [kW] Heating Capacity* [kW] # pipes AC or EC engine Horizontal or vertical Hydraulic connection E-shop
J035531012010 UTV-ECM-10/L/2P 3.83 5.02 2 EC Vertical Left
J035531012020 UTV-ECM-20/L/2P 7.05 8.61 2 EC Vertical Left
J035531012030 UTV-ECM-30/L/2P 9.2 11.3 2 EC Vertical Left
J035531012040 UTV-ECM-40/L/2P 10.6 12.94 2 EC Vertical Left
J035531012050 UTV-ECM-50/L/2P 13.1 16.99 2 EC Vertical Left
J035531012060 UTV-ECM-60/L/2P 27.8 32.9 2 EC Vertical Left
J035531012070 UTV-ECM-70/L/2P 50.55 60.9 2 EC Vertical Left
J035531013010 UTV-ECM-10/R/2P 3.83 5.02 2 EC Vertical Right
J035531013020 UTV-ECM-20/R/2P 7.05 8.61 2 EC Vertical Right
J035531013030 UTV-ECM-30/R/2P 9.2 11.3 2 EC Vertical Right
J035531013040 UTV-ECM-40/R/2P 10.6 12.94 2 EC Vertical Right
J035531013050 UTV-ECM-50/R/2P 13.1 16.99 2 EC Vertical Right
J035531013060 UTV-ECM-60/R/2P 27.8 32.9 2 EC Vertical Right
J035531013070 UTV-ECM-70/R/2P 50.55 60.9 2 EC Vertical Right
J035531014110 UTV-ECM-10/L/4P 3.6 4.18 4 EC Vertical Left
J035531014120 UTV-ECM-20/L/4P 7.00 7.01 4 EC Vertical Left
J035531014130 UTV-ECM-30/L/4P 9.01 9.16 4 EC Vertical Left
J035531014140 UTV-ECM-40/L/4P 9.57 10.60 4 EC Vertical Left
J035531014150 UTV-ECM-50/L/4P 13.63 12.65 4 EC Vertical Left
J035531014160 UTV-ECM-60/L/4P 24.95 38.85 4 EC Vertical Left
J035531014170 UTV-ECM-70/L/4P 45.55 70.15 4 EC Vertical Left
J035531015020 UTV-ECM-20/R/4P 7.00 7.01 4 EC Vertical Right
J035531015030 UTV-ECM-30/R/4P 9.01 9.16 4 EC Vertical Right
J035531015040 UTV-ECM-40/R/4P 9.57 10.60 4 EC Vertical Right
J035531015060 UTV-ECM-60/R/4P 24.95 38.85 4 EC Vertical Right
J035531015070 UTV-ECM-70/R/4P 45.55 70.15 4 EC Vertical Right
J035531022020 UTC-ECM-20/L/2P 7.05 8.61 2 EC Horizontal Left
J035531022030 UTC-ECM-30/L/2P 9.20 11.33 2 EC Horizontal Left
J035531022040 UTC-ECM-40/L/2P 10.60 12.94 2 EC Horizontal Left
J035531022050 UTC-ECM-50/L/2P 13.10 16.99 2 EC Horizontal Left
J035531022060 UTC-ECM-60/L/2P 27.80 32.91 2 EC Horizontal Left
J035531022070 UTC-ECM-70/L/2P 50.55 60.90 2 EC Horizontal Left
J035531023010 UTC-ECM-10/L/4P 3.60 4.18 4 EC   Left
J035531023020 UTC-ECM-20/R/2P 7.05 8.61 2 EC Horizontal Right
J035531023030 UTC-ECM-30/R/2P 9.20 11.33 2 EC Horizontal Right
J035531023040 UTC-ECM-40/R/2P 10.60 12.94 2 EC Horizontal Right
J035531023050 UTC-ECM-50/R/2P 13.10 16.99 2 EC Horizontal Right
J035531023060 UTC-ECM-60/R/2P 27.80 32.91 2 EC Horizontal Right
J035531023070 UTC-ECM-70/R/2P 50.55 60.90 2 EC Horizontal Right
J035531032010 UTV-ECM-10/R/4P 3.6 4.18 4 EC Horizontal Right
J035531032020 UTC-ECM-20/L/4P 7 7.01 4 EC Horizontal Left
J035531032030 UTC-ECM-30/L/4P 9.01 9.16 4 EC Horizontal Left
J035531032040 UTC-ECM-40/L/4P 9.57 10.60 4 EC Horizontal Left
J035531032050 UTC-ECM-50/L/4P 13.63 12.65 4 EC Horizontal Left
J035531032060 UTC-ECM-60/L/4P 24.95 38.85 4 EC Horizontal Left
J035531032070 UTC-ECM-70/L/4P 45.55 70.15 4 EC Horizontal Left
J035531033010 UTC-ECM-10/R/4P 3.60 4.18 4 EC Horizontal Right
J035531033020 UTC-ECM-20/R/4P 7 7.01 4 EC Horizontal Right
J035531033030 UTC-ECM-30/R/4P 9.01 9.16 4 EC Horizontal Right
J035531033040 UTC-ECM-40/R/4P 9.57 10.60 4 EC Horizontal Right
J035531033050 UTC-ECM-50/R/4P 13.63 12.65 4 EC Horizontal Right
J035531033060 UTC-ECM-60/R/4P 24.95 38.85 4 EC Horizontal Right
J035531033070 UTC-ECM-70/R/4P 45.55 70.15 4 EC Horizontal Right

Dimensions

 AxA [mm]# Nozzles
SNS-XL 300-16298x29816
SNS-XL 400-24398x39824
SNS-XL 500-36498x49836
SNS-XL 500-48498x49848
PS/SNS-XL 300/596-16596x59616
PS/SNS-XL 400/596-24596x59624
PS/SNS-XL 500/596-36596x59636
PS/SNS-XL 500/596-48596x59648
SNS-XL 600-64596x59664
SNS-XL 600-80596x59680

Quick selection

SNS-XL- # Nozzles300 - #16400 - #24500 - #36500 - #48600 - #64600 - #80600 - #80
 Ak0.0190.02850.04270.05690.07590.09490.0949
QPlenumPPS-P Ø125PPS-P Ø160PPS-P Ø200PPS-P Ø250PPS-P Ø250PPS-P Ø250REF 595-Ø315
B1.22.43.61.22.43.61.22.43.61.22.43.61.22.43.61.22.43.61.22.43.6
100 H=2.70.160.120.09                  
VzH=3.20.120.090.08                  
 H=3.80.090.080.06                  
Vk1.5      
X(0,25)1      
Pt10      
Lw(A)<20      
150 H=2.70.240.170.130.190.130.1               
VzH=3.20.180.140.110.140.110.09               
 H=3.80.140.110.10.110.090.07               
Vk2.21.5     
X(0,25)1.51.1     
Pt2310     
Lw(A)28<20     
200 H=2.70.320.230.180.250.180.14               
VzH=3.20.240.190.150.190.140.12               
 H=3.80.190.150.130.140.120.1               
Vk2.91.9     
X(0,25)1.91.5     
Pt4118     
Lw(A)3726     
300 H=2.70.480.350.270.370.270.210.310.220.170.310.220.17         
VzH=3.20.360.280.230.280.210.170.230.180.140.240.180.15         
 H=3.80.280.230.190.210.170.150.180.140.120.180.150.12         
Vk4.42.921.5   
X(0,25)2.92.21.91.9   
Pt9139157   
Lw(A)493825<20   
400 H=2.7   0.50.350.280.410.290.230.420.30.230.380.270.21      
VzH=3.2   0.370.290.230.310.240.190.310.240.20.280.220.18      
 H=3.8   0.290.230.20.240.190.160.240.20.170.220.180.15      
Vk 3.92.621.5  
X(0,25) 32.52.52.3  
Pt 6827139  
Lw(A) 463424<20  
500 H=2.7   0.620.440.340.520.370.290.520.370.290.470.340.260.450.320.250.450.320.25
VzH=3.2   0.460.360.290.390.30.240.390.30.250.350.270.220.340.260.210.340.260.21
 H=3.8   0.360.290.240.30.240.20.30.250.210.270.220.190.260.210.180.260.210.18
Vk 4.93.32.41.81.51.5
X(0,25) 3.73.13.12.82.72.7
Pt 105412014106
Lw(A) 5341312723<20
600 H=2.7      0.620.440.340.630.450.350.560.40.310.540.390.30.540.390.3
VzH=3.2      0.460.360.290.470.360.290.420.330.260.410.310.250.410.310.25
 H=3.8      0.360.290.240.360.290.250.330.260.220.310.250.210.310.250.21
Vk  3.92.92.21.81.8
X(0,25)  3.73.83.43.23.2
Pt  582920149
Lw(A)  4636322921
700 H=2.7      0.720.520.40.730.520.410.660.470.370.630.450.350.630.450.35
VzH=3.2      0.540.420.340.550.420.340.490.380.310.470.360.30.470.360.3
 H=3.8      0.420.340.280.420.340.290.380.310.260.360.30.250.360.30.25
Vk  4.63.42.622
X(0,25)  4.34.443.83.8
Pt  7940272012
Lw(A)  5141373325
800 H=2.7         0.840.60.470.750.540.420.720.520.40.720.520.4
VzH=3.2         0.630.480.390.560.430.350.540.420.340.540.420.34
 H=3.8         0.480.390.330.430.350.30.420.340.280.420.340.28
Vk   3.92.92.32.3
X(0,25)   54.54.34.3
Pt   52352615
Lw(A)   45413729
1000 H=2.7         1.050.750.580.940.670.520.90.640.50.90.640.5
VzH=3.2         0.790.60.490.710.540.440.680.520.420.680.520.42
 H=3.8         0.60.490.410.540.440.370.520.420.360.520.420.36
Vk   4.93.72.92.9
X(0,25)   6.35.65.45.4
Pt   82554024
Lw(A)   52484436

Symbols and specifications

  • Q = Air volume in m³/h
  • Ak = Effective surface (free area) in m²
  • B = Distance between the diffusers in m
  • H = Installation height of the diffusers in m
  • Vz = Maximum velocity at the occupied zone according to distance between the diffusers and installation height in m/s
  • Vk = Average effective velocity through the diffuser in m/s
  • X0.25 = Throw length in m at an end velocity Vt of 0,25m/s
  • Pt = Total pressure loss over difuuser and plenum given in Pa
  • Lw(A) = Acoustic power in dB(A)


  • The throw X0.25 is given at an end velocity of 0.25m/s for a smooth ceiling without any obstacles.
  • The values are given for isothermal supply air. Throw distances for cooling conditions at -11K can be calculated by dividing the X0.25 values with factor 1.1. For heating purposes at Dt of +11K a multiplier of 1.1 should be applied to the given X0.25 value.
  • In order to achieve a high comfort level, selections can be made according to the maximal velocity at the occupied zone Vz. These values are given at distances between diffusers B and installation heights H. Velocities Vz lower than, or equal to 0,25m/s at the occupied zone are advised.
  • The pressure losses Ps are given for diffusers without damper of with fully opened damper.
  • The acoustic power values Lw(A) are given for diffusers without damper of with fully opened damper without room attenuation. Acoustic powers below 20dB(A) are mentioned as "<20" in the tables.
  • For all special requirements, please contact our engineering office.


Placement instruction

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