VIREO Ceiling

Square ceiling air diffuser with nozzles for supply air

Flush design
Suitable for VAV-applications
Fast and easy installation
Sealing ring, standard for spigot
Energy efficient with tightness class C, EN 1751:2014
Plenum box, 360° rotatable
Standard swirl spread, alternative 3-way and vertical spread
Standard black or white rectangular nozzles

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Product Description

Technical description

Design

The air diffuser consists of a backing box and a diffuser face.
The diffuser face has plastic rectangular nozzles and is designed for discharging high airflows. Nozzles can easy be changed from standard swirl spread to 3-way or vertical spread.
Quick Access system makes it easier and faster to open and close the diffuser face for installation, commissioning and cleaning.
Commissioning box is 360° rotatable, which makes duct installation easier and flexible ducts are not necessary.
Telescopic vertically fine adjustment is possible between the commissioning box and the air diffuser to reach alignment with the ceiling.
Tightness class C, according to EN 1751:2014, for the commissioning box gives an energy efficient system and all the supply air will be utilized in the room.

Material and surface treatment

The backing box and diffuser face are made of sheet steel, the spigot is made of galvanized sheet steel.
The sheet steel is painted.
Standard colour:
- White semi-gloss, lustre 40, RAL 9003/NCS S 0500-N
Alternative standard colours:
- Silver gloss, lustre 80, RAL 9006
- Grey aluminium gloss, lustre 80, RAL 9007
- White semi-gloss, lustre 40, RAL 9010
- Black semi-gloss, lustre 35, RAL 9005
- Grey semi-gloss, lustre 30, RAL 7037
Non-painted finish and other colours available on request.
The rectangular nozzle is made of environmentally friendly plastic (PP-polypropylene) and is available in black and white.

AIR FLOW - SOUND PRESSURE ROOM (Lp10A) *)
VIREO Ceiling Size		25 dB(A)		30 dB(A)		35 dB(A)
VIREO Ceiling Size		l/s	m3/h	l/s	m3/h	l/s	m3/h
125-600		35	126	42	151	48	173
160-600		43	155	52	187	60	216
200-600		78	281	89	320	103	371
250-600		92	331	106	382	122	439
315-600		118	425	136	490	158	569
400-600		170	612	195	702	225	810

VIREO Ceiling Size	ALS Size	25 dB(A)		30 dB(A)		35 dB(A)
VIREO Ceiling Size	ALS Size	l/s	m3/h	l/s	m3/h	l/s	m3/h
125-600	100-125	22	79	28	101	35	126
160-600	100-160	26	94	34	122	45	162
160-600	125-160	33	119	40	144	49	176
200-600	125-200	34	122	48	173	70	252
200-600	160-200	52	187	63	227	78	281
250-600	160-250	59	212	78	281	99	356
250-600	200-250	70	252	87	313	105	378
315-600	200-315	75	270	105	378	130	468
315-600	250-315	103	371	125	450	146	526
400-600	250-400	103	371	135	486	165	594
400-600	315-400	135	486	155	558	190	684
Total pressure drop 50 Pa. *) Lp10A = Sound pressure incl. A-filter with 4 dB room attenuation and 10 m2 room absorption area.

ALS

Commissioning box for air diffusers

EPD

Nordic Swan listed

The product is listed in the database for building products that can be used in Nordic Swan Ecolabelled buildings.

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Include Accessory documents

Document	Article	Document type	Date
Installation, commissioning, maintenance (pdf 4.28MB)	VIREO Ceiling + ALX	IOM Manual	24/05/2018
Square ceiling air diffuser with nozzles for supply air (pdf 5.16MB)	VIREO Ceiling + ALX	Technical catalogue	28/09/2023
Installation, commissioning, maintenance (pdf 5.46MB)	VIREO Ceiling + ALS	IOM Manual	25/06/2020
Building product declaration (pdf 42.85kB)	VIREO Ceiling + ALX	Quality	24/05/2018
Square ceiling air diffuser with nozzles for supply air (pdf 5.33MB)	VIREO Ceiling + ALS	Technical catalogue	28/09/2023
Overview - Air diffusers (pdf 3.34MB)	Air diffusers	Brochure	12/07/2022
Commissioning guide - Air diffusers, VAV/CAV- & Commissioning dampers (pdf 7.75MB)	Air diffusers, VAV/CAV- & Commissioning dampers	IOM Manual	19/08/2024
Product description - Air diffusers & dampers (pdf 249.19kB)	Air diffusers & dampers	IOM Manual	19/10/2023
Nano certificate (pdf 71.51kB)	Air diffusers	Quality	03/10/2023
NEW test doc (pdf 16.09kB)	123456	Quality	20/01/2025

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