Type DCS

For horizontal swirling supply air discharge creating high induction levels, with fixed air control blades

Square ceiling swirl diffusers with perforated face plate, for comfort and industrial zones

  • Nominal sizes 600, 625
  • Volume flow rate range 4 – 260 l/s or 16 – 936 m³/h
  • Perforated diffuser face made of galvanised sheet steel, powder-coated
  • For supply and extract air
  • For variable and constant volume flows
  • For all types of ceiling systems, particularly for T-bar ceilings
  • Swirl unit inside, 6 sizes, for the best swirl effect and high induction levels
  • Ideal for comfort zones


Optional equipment and accessories

  • Exposed diffuser face available in RAL CLASSIC colours
  • Horizontal or vertical duct connection
  • Plenum box with lining

DCS-P-V 00133179_0
  • Application
  • Description

Application

  • Type DCS ceiling swirl diffusers are preferably used as supply air diffusers for comfort and industrial zones
  • Perfect integration with suspended perforated sheet metal ceilings
  • Horizontal swirling supply air discharge for mixed flow ventilation
  • The efficient swirl creates high induction levels, thereby rapidly reducing the temperature difference and airflow velocity (supply air variant)
  • For variable and constant volume flows
  • For supply air to room air temperature differences –12 to +10 K
  • For room heights up to 4 m (lower edge of suspended ceiling)
  • For T-bar ceilings

Special characteristics

  • Horizontal air discharge creating high induction levels
  • Design variants with perforated square or circular diffuser face style
  • For T-bar ceilings
  • Horizontal or vertical duct connection

Nominal sizes

  • Diffuser face: 593, 598, 618, 623
  • Swirl diffuser: 125, 160, 200, 250, 315, 400

Variants

  • DCS-P: Perforated diffuser face
  • DCS-N: Unperforated diffuser face
  • DCS-C: Diffuser face with exposed discharge nozzle


Installation type

  • V: Exposed T-bars
  • H: Concealed T-bars


Connection

  • K: Vertical duct connection, with duct collar
  • US: Vertical duct connection, with transition piece
  • A: Horizontal duct connection, with plenum box
  • AK: Horizontal duct connection, with plenum box and lining

Parts and characteristics

  • Square diffuser face
  • V: For T-bar ceilings with exposed T-bars
  • H: For T-bar ceilings with concealed T-bars
  • Swirl unit with radially arranged fixed air control blades

Construction features

  • Spigot suitable for circular ducts to EN 1506 or EN 13180

Materials and surfaces

  • Diffuser face, discharge nozzle, swirl unit, duct collar and plenum box made of galvanised sheet steel
  • Transition piece made of aluminium
  • Plenum box lining is mineral wool
  • Swirl unit and discharge nozzle dip coated RAL 9005, jet black
  • Diffuser face and discharge nozzle powder-coated RAL 9010, pure white
  • P1: Powder-coated, RAL CLASSIC colour


Mineral wool

  • To EN 13501, fire rating class A1, non-combustible
  • RAL quality mark RAL-GZ 388
  • Biosoluble and hence hygienically safe according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EG
  • Faced with glass fibre fabric as a protection against erosion through airflow velocities of up to 20 m/s
  • Inert to fungal and bacterial growth

Standards and guidelines

  • Sound power level of the air-regenerated noise measured according to EN ISO 5135

Maintenance

  • Maintenance-free as construction and materials are not subject to wear
  • Inspection and cleaning to VDI 6022

Technical information

  • Function
  • Technology
  • Quick sizing
  • Specification text
  • Order code
Schematic illustration of the DCS, with perforated diffuser face and plenum box for horizontal duct connection 00143946_0

① Diffuser face
② Discharge nozzle
③ Blade
④ Plenum box
⑤ Suspension lug
⑥ Spigot

Functional description

Ceiling swirl diffusers in air conditioning systems create a swirl to supply air to rooms. The resulting airflow induces high levels of room air, thereby rapidly reducing the airflow velocity and the temperature difference between supply air and room air. Ceiling swirl diffusers allow for large volume flow rates. The result is a mixed flow ventilation in comfort zones, with good overall room ventilation, creating only very little turbulence in the occupied zone.

Type DCS ceiling swirl diffusers have fixed blades. The swirl unit required for the swirling air discharge is situated inside the plenum box, concealed by a perforated plate, and hence not visible from the room. Air discharge is horizontal omni directional. The supply air to room air temperature difference may range from –12 to +10 K.

To give rooms an aesthetic, uniform look, Type DCS diffusers may also be used for extract air.

Nominal sizes – diffuser face593, 598, 618, 623 mm
Nominal sizes – swirl unit125, 160, 200, 250, 315, 400 mm
Minimum volume flow rate, with ΔtZ = –6 K 4 – 36 l/s or 16 – 128 m³/h
Maximum volume flow rate, with LWA ≅ 50 dB(A)37 – 260 l/s or 132 – 936 m³/h
Supply air to room air temperature difference–12 to +10 K


Quick sizing – sound power level and total differential pressure

Nominal sizeVΔptLWA
Nominal sizel/sm³/hPadB(A)
125 4 16 1<15
125 20 72 1930
125 30 108 4343
125 37 132 6450
160 6 23 1<15
160 30 108 1529
160 50 180 4243
160 63 225 6650
200 9 32 1<15
200 35 126 1722
200 65 234 5738
200 93 334 11650
250 14 50 1<15
250 50 180 1622
250 85 306 4736
250 128 460 10650
315 25 90 2<15
315 85 306 2128
315 145 522 6042
315 180 648 9250
400 36 128 2<15
400 110 396 1626
400 180 648 4239
400 250 900 8150


Quick sizing – sound power level and total differential pressure

Nominal sizeVΔptLWA
Nominal sizel/sm³/hPadB(A)
125 4 16 2<15
125 15 54 1927
125 20 72 3336
125 30 108 7450
160 6 23 1<15
160 20 72 1020
160 40 144 3940
160 55 198 7451
200 9 32 1<15
200 35 126 2225
200 60 216 6440
200 80 288 11450
250 14 50 1<15
250 45 162 1423
250 75 270 4037
250 105 378 7950
315 25 90 25
315 70 252 1727
315 115 414 4540
315 160 576 8650
400 36 128 25
400 100 360 1427
400 160 576 3639
400 220 792 6950


Quick sizing – sound power level and total differential pressure

Nominal sizeVΔptLWA
Nominal sizel/sm³/hPadB(A)
125 4 16 1<15
125 15 54 1321
125 25 90 3635
125 39 140 8851
160 6 23 1<15
160 25 90 1220
160 45 162 4036
160 65 234 8450
200 9 32 1<15
200 35 126 1122
200 65 234 3939
200 90 324 7650
250 14 50 1<15
250 50 180 1023
250 90 324 3438
250 128 462 6850
315 25 90 1<15
315 80 288 1225
315 130 468 3138
315 185 666 6250
400 36 128 1<15
400 110 396 1125
400 180 648 2939
400 250 900 5750


Quick sizing – sound power level and total differential pressure

Nominal sizeVΔptLWA
Nominal sizel/sm³/hPadB(A)
125 4 16 2<15
125 15 54 1924
125 25 90 5339
125 35 126 10551
160 6 23 12
160 20 72 1015
160 35 126 3232
160 55 200 8050
200 9 32 1<15
200 35 126 1524
200 65 234 5343
200 80 288 8050
250 14 50 1<15
250 45 162 1021
250 50 180 1224
250 110 396 5850
315 25 90 10
315 70 252 1124
315 115 414 3138
315 160 576 6050
400 36 128 13
400 95 342 924
400 155 558 2537
400 225 810 5250


Design ceiling swirl diffusers with perforated square diffuser face, for comfort zones with particularly demanding requirements of aesthetics and design. For supply air or extract air. Excellent aerodynamic and acoustic function due to fixed air control blades for horizontal swirling air discharge, creating high levels of induction. For installation into all types of suspended ceilings.

Ready-to-install component which consists of the diffuser face, a top entry spigot or a plenum box with equalising element, a side entry spigot, and suspension lugs.

Spigot suitable for ducts to EN 1506 or EN 13180.

Sound power level of the air-regenerated noise measured according to EN ISO 5135.

Special characteristics

  • Horizontal air discharge creating high induction levels
  • Design variants with perforated square or circular diffuser face style
  • For T-bar ceilings
  • Horizontal or vertical duct connection

Materials and surfaces

  • Diffuser face, discharge nozzle, swirl unit, duct collar and plenum box made of galvanised sheet steel
  • Transition piece made of aluminium
  • Plenum box lining is mineral wool
  • Swirl unit and discharge nozzle dip coated RAL 9005, jet black
  • Diffuser face and discharge nozzle powder-coated RAL 9010, pure white
  • P1: Powder-coated, RAL CLASSIC colour


Mineral wool

  • To EN 13501, fire rating class A1, non-combustible
  • RAL quality mark RAL-GZ 388
  • Biosoluble and hence hygienically safe according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EG
  • Faced with glass fibre fabric as a protection against erosion through airflow velocities of up to 20 m/s
  • Inert to fungal and bacterial growth

Technical data

  • Nominal sizes – diffuser face: 593, 598, 618, 623 mm
  • Nominal sizes – swirl unit: 125, 160, 200, 250, 315, 400 mm
  • Minimum volume flow rate, with Δt = –6 K: 4 – 36 l/s or 16 – 128 m³/h
  • Maximum volume flow rate, with LWA ≅ 50 dB(A): 37 – 260 l/s or 132 – 936 m³/h
  • Supply air to room air temperature difference: –12 to +10 K

00135151_0

 Type
DCS       Swirl diffuser

 Construction style
P       Diffuser face, perforated
N       Diffuser face, unperforated
C       Diffuser face with discharge nozzle

 Installation type
V       T-bars exposed (diffuser face rests on T-bars)
H       T-bars concealed (diffuser face conceals T-bars)

Connection
K       Vertical, with duct collar
US       Vertical, with transition piece
A       Horizontal, with plenum box
AK       Horizontal, with plenum box and lining

 

 Size of diffuser face plate
       Installation type V
593
618
       Installation type H
598
623

 Nominal size [mm]
125
160
200
250
315
400

 Exposed surface
       No entry: powder-coated RAL 9010, pure white
P1       Powder-coated, specify RAL CLASSIC colour

       Gloss level
       RAL 9010 50 %
       RAL 9006 30 %
       All other RAL colours 70 %

 

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Contact

Thank you for your message!

Visual contact Visual contact

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Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +49 (0)2845 / 202-0 | Fax: +49 (0)2845/202-265