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PS/RWR-FCSA (RAL9005) • Black square swirl diffusers with fixed curved blades for suspended ceilings

Swirl ceiling diffusers with high induction rate, consisting of a square plate for suspended ceilings with multiple fixed blades arranged in a circular pattern, to be equipped with galvanized steel plenum box.

Brand

  • CAIROX

Application

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

Material

  • Steel

Colour

  • Colour black, RAL 9005
  • Other colours available upon request

Composition

  • Front plate made of powder coated steel
  • Central screw mounting

Mounting

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

Accessories

  • Square plenum box, type REV-B
  • Square insulated plenum box, type REV-B ISO
  • Circular plenum box, type RER-B
  • Insulated circular plenum box, type RER-B ISO
  • Regulating valve for plenum box,type CRC
  • Polystyrene plenum box, type PPS-P with duct connection PPS-APD and mounting bar PPS-MB

Text for tender

Copy
  • The ceiling swirl diffusers are square with fixed, curved blades with high induction power and horizontal discharge. The front grilles and blades are made of steel. The diffusers are powder-coated black in RAL 9005. They are mounted in an insulated or non-insulated round plenum by means of a central concealed screw fixing. The galvanized steel plenums are provided with a perforated plate to obtain a homogeneous distribution over the grille and a flow regulator in the side connection.
  • Cairox type RWR-FCSA (RAL9005) + RER-B(ISO) + CRC

Order example

  • PS/RWR-FCSA (RAL9005), 400 + RER-B 400 + CRC 200

Explanation

PS/RWR-FCSA (RAL9005) = Diffuser type

400 = Diffuser size

Accessories

RER-B = Plenum box type

400 = Size plenum box

CRC = Regulating valve for plenum box
200 = Plenum box connection diameter 200

Dimensions

 D [mm]D1 [mm]D2 [mm]D3 [mm]#Blades
PS/RWR-FCSA 30023810023659628
PS/RWR-FCSA 40033815033659630
PS/RWR-FCSA 50043815043659632

Quick selection

PS/RWR-FCSA300400500
QAk0.0230.030.0465
B1.22.43.61.22.43.61.22.43.6
100 H=2.70.170.130.11      
VzH=3.20.140.110.09      
 H=3.80.110.090.08      
Vk1.2  
X0,250.9  
Ps7  
Lw(A)<20  
150 H=2.70.260.20.160.230.180.15   
VzH=3.20.20.170.140.180.150.13   
 H=3.80.170.140.120.150.130.12   
Vk1.81.4 
X0,251.61.3 
Ps175 
Lw(A)26<20 
200 H=2.70.340.260.210.290.230.20.210.170.14
VzH=3.20.270.220.190.240.20.170.170.150.13
 H=3.80.220.190.160.20.170.150.150.130.12
Vk2.41.91.2
X0,252.21.91.1
Ps3082
Lw(A)34<20<20
250 H=2.70.430.330.270.360.290.240.250.20.17
VzH=3.20.340.280.230.30.250.210.210.180.16
 H=3.80.280.230.20.250.210.190.180.160.14
Vk32.31.5
X0,252.92.51.5
Ps47133
Lw(A)4124<20
300 H=2.70.510.390.320.430.340.280.290.240.2
VzH=3.20.410.330.280.350.290.250.250.210.18
 H=3.80.330.280.240.290.250.220.210.180.17
Vk3.62.81.8
X0,253.73.21.9
Ps67195
Lw(A)4730<20
400 H=2.7   0.560.440.370.380.310.26
VzH=3.2   0.460.380.330.320.270.24
 H=3.8   0.380.330.290.270.240.21
Vk 3.72.4
X0,25 4.72.9
Ps 339
Lw(A) 3921
500 H=2.7   0.690.540.460.460.380.32
VzH=3.2   0.560.470.410.390.330.29
 H=3.8   0.470.410.360.330.290.26
Vk 4.63
X0,25 6.44
Ps 5114
Lw(A) 4528
600 H=2.7      0.540.440.38
VzH=3.2      0.450.390.34
 H=3.8      0.390.340.31
Vk  3.6
X0,25  5.2
Ps  20
Lw(A)  34
800 H=2.7      0.70.570.49
VzH=3.2      0.590.50.44
 H=3.8      0.50.440.39
Vk  4.8
X0,25  7.9
Ps  35
Lw(A)  43

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
  • Ps = Static pressure loss 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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