Square ceiling diffusers for Odenwald false ceilings, to ensure fire integrity in the event of a fire on the room side
Optional equipment and accessories
Application
Special characteristics
Classification
Nominal sizes
Parts and characteristics
Construction features
Materials and surfaces
Standards and guidelines
Maintenance
Functional description
Ceiling diffusers direct the air from air conditioning systems into the room. 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 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 DLK-Fb ceiling diffusers have fixed blades. Horizontal air discharge is four-way. The supply air to room air temperature difference may range from –10 to +10 K.
To give rooms an aesthetic, uniform look, Type DLK-Fb diffusers may also be used for extract air.
Nominal sizes | 600, 625 mm |
Minimum volume flow rate | 220 – 380 l/s or 792 – 1368 m³/h |
Maximum volume flow rate, with LWA ≅ 50 dB(A) | 300 – 460 l/s or 1080 – 1656 m³/h |
Supply air to room air temperature difference | –10 to +10 K |
Quick sizing tables provide a good overview of the volume flow rates and corresponding sound power levels and differential pressures.
The maximum volume flow rates apply to a sound power level of approx. 50 dB (A).
Exact values for all parameters can be determined with our Easy Product Finder design programme.
DLK-Fb, sound power level and total differential pressure
600 625 | 220 | 792 | 9 | 28 |
600 625 | 300 | 1080 | 17 | 37 |
600 625 | 380 | 1368 | 28 | 44 |
600 625 | 460 | 1656 | 41 | 50 |
Square ceiling diffusers with integral fire barrier that ensures fire integrity in the event of a fire on the room side. Supply air and extract air variants for comfort zones. Diffuser face with fixed air control blades for horizontal supply air discharge. For flush installation into fire-resistant mineral fibre false ceilings made by Odenwald.
Ready-to-install component which consists of the diffuser face made of galvanised sheet steel, with fixed air control blades and a diffuser front frame with perimeter seal, a plenum box, side entry spigot, and support angles for installing the ceiling diffuser. The integral fire barrier consists of a mineral fibre board and a fusible link, release temperature 72 °C.
The diffuser face is fixed to the cross bar with a central screw.
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
Materials and surfaces
Technical data
Sizing data
Air-regenerated noise
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Order example: DLK-Fb/600
Nominal size | 600 |
Exposed surface | RAL 9010, pure white, gloss level 50 % |
DLK-Fb
mm | mm | mm | m² | mm | mm | mm | mm | kg | |
DLK-Fb
mm | mm | m² | |
Aeff applies to four-way air discharge
Installation and commissioning
Installation information
These are only schematic diagrams to illustrate installation details.
Principal dimensions
ØD [mm]
Outer diameter of the spigot
ØD₁ [mm]
Outer diameter of a circular diffuser face
ØD₂ [mm]
Diameter of a circular diffuser face style
ØD₃ [mm]
Diameter of a circular plenum box
□Q₁ [mm]
Outer diameter of a square diffuser face
□Q₂ [mm]
Dimensions of a square diffuser face style
□Q₃ [mm]
Dimensions of a square plenum box
H₁ [mm]
Distance (height) from the lower edge of the suspended ceiling to the lower edge of the diffuser face
H₂ [mm]
Height of a ceiling diffuser, from the lower edge of the suspended ceiling to the upper edge of the spigot
H₃ [mm]
Height of a ceiling diffuser with plenum box, from the lower edge of the suspended ceiling to the upper edge of the plenum box or of the spigot
A [mm]
Position of the spigot, defined by the distance of the spigot centre line to the lower edge of the suspended ceiling
C [mm]
Length of the spigot
m [kg]
Weight
Nomenclature
LWA [dB(A)]
A-weighted sound power level of air-regenerated noise
V [m³/h] and [l/s]
Volume flow rate
Δtz [K]
Supply air to room air temperature difference, i.e. supply air temperature minus room temperature
Δpt [Pa]
Total differential pressure
Aeff [m²]
Effective air discharge area
All sound power levels are based on 1 pW.
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We are here for you
Please specify your message and type of request.
Tel.: +971 4 3417448 | Fax: +971 4 3417449
Contact
Thank you for your message!
Your message is send and will be processed shortly.
Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +971 4 3417448 | Fax: +971 4 3417449