DIR

VARIZON® Displacement unit with adjustable distribution pattern

Adjustable spread pattern and affected area
Suitable for all types of rooms
Simple to install
Cleanable
Concealed fixing
Standard colour White RAL 9003
- 5 alternative standard colours
- Other colours upon request

Calculate with your requirements

DIR is a complete, rectangular displacement air diffuser for flush mounting in walls. It supplies air flow at low velocity to the occupied zone. The spread pattern is easily adjustable due to the movable air deflectors. A connection duct is available as an accessory.

Technical description

Design

The DIR is a complete, flat displacement unit for mounting recessed into studded walls. The unit consists of a two parts: the plenum box and the perforated front plate. The plenum box is equipped with a air volume measuring point, or mounting frame and a rectangular connection spigot. The telescopic mounting frame has a distribution plate which is equipped with a number of adjustable deflectors. This plate is removable for access to the duct system. The perforated front plate is fixed to the mounting frame.

Material and surface treatment

The displacement unit is manufactured in galvanised sheet steel and is coated with paint.

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.

Adaptation

AIR FLOW - SOUND PRESSURE ROOM (Lp10A) *)
DIR Size	25 dB(A)		30 dB(A)		35 dB(A)
DIR Size	l/s	m3/h	l/s	m3/h	l/s	m3/h
400	34	122	40	144	48	173
500	47	169	57	205	66	238
600	60	216	71	256	85	306
900	110	396	130	468	148	533
The sound data applies to the displacement unit together with the connection duct. *) Lp10A = Sound pressure incl. A-filter with 4 dB room attenuation and 10 m² room absorption area.

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Include Accessory documents

Document	Article	Document type	Date
Building product declaration (pdf 144.03kB)	DIRc	Quality	11/12/2023
Low velocity displacement unit with VARIZON (pdf 1.35MB)	DIRc	Technical catalogue	30/11/2021
Installation, commissioning, maintenance (pdf 1.15MB)	DIRc	IOM Manual	24/05/2018
Nano certificate (pdf 71.51kB)	Air diffusers	Quality	03/10/2023
Product description - Air diffusers & dampers (pdf 249.19kB)	Air diffusers & dampers	IOM Manual	19/10/2023
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

Whilst we have made every effort to ensure information on this website is up to date and accurate, the technical specification and availability of products/services listed on this website may vary market to market and are subject to change without notice. Please contact your regional representative or visit your local website for further details.