TID

Non-visible air terminal device for combination with finely perforated standard metal ceiling tiles


 

These swirl diffusers allow for a seamless ceiling appearance without any visual interruptions

  • Invisible due to the black coated functional unit located on the rear of the diffuser face or ceiling tile
  • Flexible combination options with various perforated standard metal ceiling tiles or a factory-made perforated plate diffuser face
  • Maximum comfort due to swirling air distribution, swift reduction of supply air velocities and temperature differences
  • Easy installation, with either plenum box or direct air connection

 


TID TID-Q_img_08.psd.png
  • APPLICATION
  • DESCRIPTION

Application


  • Type TROX INVISIBLE DIFFUSER (TID) ceiling swirl diffusers as supply air and extract air diffusers for use in ventilation and air conditioning systems
  • For installation in comfort and industrial zones
  • Can be combined with perforated standard metal ceiling tiles, but without acoustic fleece or factory-made perforated plate diffuser face (LBK or LBS)
  • The functional unit installation is not visible, which is why it is particularly suitable as an attractive design element for building owners and architects with demanding aesthetic requirements
  • 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 from –12 to +10 K
  • For room heights up to 4 m (lower edge of suspended ceiling)
  • For all types of ceiling systems, particularly for standard metal ceilings with perforated standard ceiling tiles (free cross section ≥ 15 %)

Special characteristics

  • Inconspicuous or non-visible swirl diffuser

  • Installation behind on-site perforated standard ceiling tile, without affecting the appearance of the ceiling, ceiling tile thickness must be ≤ 1 mm, preferably ≤ 0.7 mm

  • Optionally with factory-made perforated plate diffuser face, to cover the functional unit consisting of discharge nozzle, swirling element and spigot

  • Functional unit always dip coated black

  • Non-visible installation of technical components

Nominal sizes


  • 300, 400, 600, 625
  • Ø: 125, 160, 200, 250, 315

Variants

Connection

  • Vertical: In the case of a vertical connection, a spigot is attached to the discharge nozzle; it can be mounted directly to the on-site duct network. Suspension lugs are attached to the spigot to retain the dead load of the air diffuser
  • Horizontal: In the case of a horizontal connection, the TID air diffuser is combined with a suitable Type AK-Uni plenum box
  • Variants with a perforated plate diffuser face (LBK and LBS) are only available with plenum boxes
     

Perforated plate diffuser face

  • Without perforated plate diffuser face: This variant is suitable for installation behind standard metal ceiling tiles perforated on site (free cross section ≥ 15 %), which must be ≤ 1 mm thick, and ideally ≤ 0.7 mm thick
  • LBK – clamped perforated plate diffuser face: A perforated plate diffuser face with a perforation of RV 6.0–8.0 with a free cross section of approx. 51 % is included in the supply package ex works; the perforated plate diffuser face is attached to the discharge nozzle by means of clamps; this variant is particularly suitable for insertion in T-bar ceilings and is only available with a plenum box; the diffuser face is permanently connected to the plenum box
  • LBS – screwed perforated plate diffuser face: A perforated plate diffuser face with a perforation of RV 6.0–8.0 with a free cross section of approx. 51 % is included in the supply package ex works; the perforated plate diffuser face is attached to the discharge nozzle with lugs at the edges; this variant is particularly suitable for direct installation below suspended ceilings and only available with a plenum box; the air diffuser is secured to the cross bar in the plenum box with the central fixing screw. The entire air diffuser can be removed to access the plenum box behind it up to the equalising element, e.g. for cleaning

Attachments


Perforated plate diffuser face

  • Without perforated plate diffuser face: This variant is suitable for installation behind standard metal ceiling tiles perforated on site (free cross section ≥ 15 %), which must be ≤ 1 mm thick, and ideally ≤ 0.7 mm thick
  • LBK – clamped perforated plate diffuser face: A perforated plate diffuser face with a perforation of RV 6.0–8.0 with a free cross section of approx. 51 % is included in the supply package ex works; the perforated plate diffuser face is attached to the discharge nozzle by means of clamps; this variant is particularly suitable for insertion in T-bar ceilings and is only available with a plenum box; the diffuser face is permanently connected to the plenum box
  • LBS – screwed perforated plate diffuser face: A perforated plate diffuser face with a perforation of RV 6.0–8.0 with a free cross section of approx. 51 % is included in the supply package ex works; the perforated plate diffuser face is attached to the discharge nozzle with lugs at the edges; this variant is particularly suitable for direct installation below suspended ceilings and only available with a plenum box; the air diffuser is secured to the cross bar in the plenum box with the central fixing screw. The entire air diffuser can be removed to access the plenum box behind it up to the equalising element, e.g. for cleaning


Attachments

  • M: Damper blade for volume flow rate balancing
  • MN: Pressure tap and cord-operated damper blade for volume flow rate balancing with the diffuser face in place


Materials and surfaces


  • Discharge nozzle, swirling element, spigot and optional factory-made perforated plate diffuser face made from galvanised sheet steel

  • Perforated plate diffuser face, powder-coated, RAL 9010, pure white

  • P1: Perforated plate diffuser face, powder-coated according to RAL Classic


Standards and guidelines

  • The sound power level of the air-regenerated noise is measured according to EN ISO 5135.

Nominal sizes

  • 300, 400, 600, 625
  • Ø: 125, 160, 200, 250, 315


Technical information

FUNCTION, TECHNICAL DATA, QUICK SIZING, SPECIFICATION TEXT, ORDER CODE

  • FUNCTION
  • TECHNICAL DATA
  • QUICK SIZING
  • SPECIFICATION TEXT
  • ORDER CODE

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. TROX INVISIBLE DIFFUSERS (TID) feature invisible or inconspicuous installation methods. The swirl unit required for the swirling air discharge is not visible from the room. The special shape of the discharge nozzle allows the swirl effect to be used even behind perforated standard metal ceiling tiles or factory-made perforated plate diffuser faces. Type TID ceiling swirl diffusers have fixed air control blades. Air discharge is horizontal, with an omni-directional flow. The supply air to room air temperature difference may range from –12 to +10 K. A damper blade in the plenum box simplifies volume flow rate balancing for commissioning. To give rooms a uniform aesthetic, Type TID diffusers may also be used for extract air.

  


Nominal sizes

300, 400, 600, 625 mm

Nominal diameter

125, 160, 200, 250, 315 mm

Supply air to room air temperature difference

–12 to +10 K


The quick sizing table gives a good overview of the possible volume flow rates and the corresponding sound power levels and differential pressure levels for the combinations with the different perforated plate diffuser faces. The minimum volume flow rates apply to a supply air to room air temperature difference of –6 K. The maximum volume flow rates apply to a sound power level of approx. 50 dB (A) with damper blade position 0°. Exact values for all parameters can be determined with our Easy Product Finder design programme. The quick sizing tables for various sample perforations are listed below:





TID (RG 2516 or RG 2.5–5.5), sound power level and total differential pressure


qv [l/s]qv [m³/h]Damper blade position
NW0° Δpt [Pa]0° LWA [dB(A)]45° Δpt [Pa]45° LWA [dB(A)]90° Δpt [Pa]90° LWA [dB(A)]
1252176413849407239
25905643684410043
291037547904813347
3211795501165117050
1602383172721293328
33118343741386638
421525844694611146
5218787501035116752
20037132192819283029
51182363737385738
65233594460459446
792848750905013951
25058207202824293231
77276353742395740
96344544465468947
1154137850935212853
31590325253328343734
112402383943405741
133480544562468146
1555577350835111050






TID (RD 2820 or RD 2.8–5.5), sound power level and total differential pressure


qv [l/s]qv [m³/h]Damper blade position
NW0° Δpt [Pa]0° LWA [dB(A)]45° Δpt [Pa]45° LWA [dB(A)]90° Δpt [Pa]90° LWA [dB(A)]
1251763243230334633
2383433953418040
291036645814712346
3412393501165117551
16036130383845407740
451635945714612247
5519686501035117652
20039139192820293130
53191363737385939
68243584460459646
822968650895114251
25054194162519272728
76272303638375239
97349504462458647
1194277550935212853
31587312203023313132
111401333839395239
136491504558467846
1615807050815110951





TID (RV 5046 or RV 5–7), sound power level and total differential pressure


qv [l/s]qv [m³/h]Damper blade position
NW0° Δpt [Pa]0° LWA [dB(A)]45° Δpt [Pa]45° LWA [dB(A)]90° Δpt [Pa]90° LWA [dB(A)]
1251449122515272527
2176293638386137
291045444704511245
3613187501125118051
1602383122516272927
34123273634386338
451634744604511046
562037450935117052
20037132132714272428
54195293731385438
72259514454459446
903227950835114651
25052187112413242126
77277253530364738
102367434452448246
1274576750815112753
31569249102312251725
103372223527363836
138495394348456845
1726186150755110651








Specification text


Ceiling swirl diffusers for invisible or inconspicuous installation behind standard metal ceiling tiles or factory-made perforated plate diffuser faces. The ceiling swirl diffuser is suitable for comfort and industrial zones and is installed as a supply or extract air diffuser in the suspended ceiling. The swirling element with fixed air control blades enable a horizontal swirling supply air discharge creating high induction levels so that the airflow velocities and temperature differences are quickly reduced. The special shape of the discharge nozzle allows the ceiling swirl diffuser to be used behind perforated standard metal ceiling tiles, which must not be thicker than 1.0 mm, and should ideally be preferably less than or equal to 0.7 mm thick, without any visual interruptions in the ceiling appearance. The ceiling swirl diffuser can be combined with all types of ceilings using a factory-made perforated plate diffuser face. The ready-to-install functional unit, consisting of a specially shaped discharge nozzle, swirling element with fixed blades and spigot, is always coated in black and can be connected directly to the on-site air duct system or combined with a Type AK-Uni plenum box. In the case of a vertical connection, suspension lugs are provided for on-site fixing to the spigot. The plenum box has drilled holes for on-site fixing. All spigots are suitable for ducts according to EN 1506 or EN 13180. The sound power level of the air-regenerated noise is measured according to EN ISO 5135.


Special characteristics

  • Inconspicuous or non-visible swirl diffuser

  • Installation behind on-site perforated standard ceiling tile, without affecting the appearance of the ceiling, ceiling tile thickness must be ≤ 1 mm, preferably ≤ 0.7 mm

  • Optionally with factory-made perforated plate diffuser face, to cover the functional unit consisting of discharge nozzle, swirling element and spigot

  • Functional unit always dip coated black

  • Non-visible installation of technical components


Materials and surfaces

  • Discharge nozzle, swirling element, spigot and optional factory-made perforated plate diffuser face and/or plenum box made from galvanised sheet steel
  • Perforated plate diffuser face, powder-coated, RAL 9010, pure white
  • P1: Perforated plate diffuser face, powder-coated according to RAL Classic


Technical data

  • Nominal sizes: 300, 400, 600, 625
  • Ø: 125, 160, 200, 250, 315 mm
  • Supply air to room air temperature difference: –12 to +10 K

Sizing data

qv_______________________________ [m³/h]
Δpt________________________________ [Pa]


Air-regenerated noise
LWA____________________________ [dB(A)]





TIDZHML / 600 × 160 / LBS / P1-RAL 9016
|||||||||
123456789


1 Type
TID Ceiling swirl diffuser

2 System
Z Supply air
A Extract air

3 Connection
V Vertical
H Horizontal

4 Damper blade for volume flow rate balancing (only for connection H)
No entry: none
M With

5 Lip seal (only for connection H)
No entry: none
L With lip seal

6 Nominal size [mm]
300
400
600
625

7 Nominal diameter [mm]
125
160
200
250
315

8 Perforated sheet
No entry: none (standard ceiling plate)
LBK Clamped with perforated diffuser face (only with connection H)
LBS Screwed with perforated diffuser face (only with connection H)

9 Exposed surface (only LBK or LBS)
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 %

Order example: TID–Z–V/600×160

SystemSupply air
ConnectionVertical
Nominal size600
Nominal width160

Variants, Dimensions, Product details

  • VARIANTS
  • DIMENSIONS
  • PRODUCT DETAILS

Variants


Connection

  • Horizontal: In the case of a horizontal connection, the TID air diffuser is combined with a suitable Type AK-Uni plenum box
     

Perforated plate diffuser face

  • Without perforated plate diffuser face: This variant is suitable for installation behind a standard metal ceiling tile perforated on site (free cross section ≥ 15 %), which must be ≤ 1 mm thick, and ideally ≤ 0.7 mm thick
  • LBK – clamped perforated plate diffuser face: A perforated plate diffuser face with a perforation of RV 6.0–8.0 with a free cross section of approx. 51 % is included in the supply package ex works; the perforated plate diffuser face is attached to the discharge nozzle by means of clamps; this variant is particularly suitable for insertion in T-bar ceilings and is only available with a plenum box; the diffuser face is permanently connected to the plenum box
  • LBS – screwed perforated plate diffuser face: A perforated plate diffuser face with a perforation of RV 6.0–8.0 with a free cross section of approx. 51 % is included in the supply package ex works; the perforated plate diffuser face is attached to the discharge nozzle with lugs at the edges; this variant is particularly suitable for direct installation below suspended ceilings and only available with a plenum box; the air diffuser is secured to the cross bar in the plenum box with the central fixing screw. The entire air diffuser can be removed to access the plenum box behind it up to the equalising element, e.g. for cleaning

Variants


Connection

  • Vertical: In the case of a vertical connection, a spigot is attached to the discharge nozzle; it can be mounted directly to the on-site duct network. Suspension lugs are attached to the spigot to retain the dead load of the air diffuser


Perforated plate diffuser face

  • Without perforated plate diffuser face: This variant is suitable for installation behind a standard metal ceiling tile perforated on site (free cross section ≥ 15 %), which must be ≤ 1 mm thick, and ideally ≤ 0.7 mm thick



Dimension Q₁ [mm]


NWNominal size
① 300① 400① 600LBK 600LBS 600① 625LBK 625LBS 625
125290390590593598615618623
160290390590593598615618623
200390590593598615618623
250590593598615618623
315590593598615618623

① Perforated standard metal ceiling tiles



,


TID with plenum box [mm]


NWØD₄H ①H LBKH LBSH₅ ①H₅ LBKH₅ LBSH₄H₃□Q₃CA∅DAK
12512566666781081952552165017098AK028
160160696970810822028026648182123AK029
200200757576810825031029050194158AK030
250250767677810829535547650219198AK031
315315787879810834539556748244248AK032

① Perforated standard metal ceiling tiles



,


Air diffuser [kg]


NWNominal size
① 300① 400① 600LBK 600LBS 600① 625LBK 625LBS 625
1251,01,53,57,07,03,57,07,0
1601,01,53,57,07,03,57,07,0
2001,53,57,07,03,57,07,0
2503,57,07,03,57,07,0
3153,57,07,03,57,07,0

① Perforated standard metal ceiling tiles



,


Plenum box [kg]


NWAKWeight
125AK0282,5
160AK0293
200AK03010
250AK0317,5
315AK0323,5

 

 

Note: Total weight for variants with plenum box: air diffuser + plenum box



,


TID with vertical connection [mm]


NW∅DH ①H LBKH LBSH₅ ①H₅ LBKH₅ LBS
1251236666678108
1601586969708108
2001987575768108
2502487676778108
3153137878798108

① Perforated standard metal ceiling tiles



,


Dimension Q₁ [mm]


NWNominal size
① 300① 400① 600LBK 600LBS 600① 625LBK 625LBS 625
125290390590593598615618623
160290390590593598615618623
200390590593598615618623
250590593598615618623
315590593598615618623

① Perforated standard metal ceiling tiles



,


Air diffuser [kg]


NWNominal size
① 300① 400① 600LBK 600LBS 600① 625LBK 625LBS 625
1251,01,53,57,07,03,57,07,0
1601,01,53,57,07,03,57,07,0
2001,53,57,07,03,57,07,0
2503,57,07,03,57,07,0
3153,57,07,03,57,07,0

① Perforated standard metal ceiling tiles



Installation in suspended ceiling systems TID_img_01.png.png
Installation and commissioning


  • Preferably for rooms with a clear height up to 4.0 m
  • For use behind perforated standard metal ceiling tiles or with factory-made perforated plate diffuser face
  • LBK for inserting in T-bar ceilings
  • LBS for installation directly below suspended ceilings
  • Perforated standard metal ceiling tiles are not included in the TID supply package and must always be provided on site

 

Note: In the case of the LBK variant, the optional flow adjustment damper can only be adjusted before installation. It is not possible to adjust the damper from the outside at a later point in time.


These are only schematic diagrams to illustrate installation details.

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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.: +44 (0)1842 754545 | Fax: +44 (0)1842 763051