Twist-air

Description

The Twist air variable swirl diffuser can be used for various ceiling heights from 4 m to 12 m. It enables turbulent airflow, long-range constant airflow and the Coanda effect – where cold air is dispersed below the ceiling.

Construction

The diffuser consists of a nozzle-shaped housing and 10 centrally adjustable blades with a metal mechanism.

Material and finish

Aluminium sheet metal.

Any colour from the RAL palette.

Drive

C - Manual drive

Central manual adjustment of blade position.

E - Electric drive

Ready for electric drive mounting. Upon customer's request, the electric motor can also be installed on the diffuser housing.

Electric motor drives:

LM230A
LM230A SR
LM24A
LM24A SR

T - Thermostatic drive

The diffuser has a built-in thermostatic drive that detects the temperature of the blown air and automatically adjusts the position of the blades. The thermostatic element operates in the temperature range of 22 °C to 38 °C. It operates automatically and does not require additional energy sources and related installations. The diffuser is set to the optimal position and activated already in the factory. The blades are open at an angle of 85° at a temperature of 38 °C. At a temperature of 20 °C, the mechanical lock stops the closing of the blades at an angle of 35°.

Angle of the blades depending on air temperature

Thermostatic mechanism for blade movement

Operation of diffuser with thermostatic drive

Accessories

PP - perforated plate placed on the neck of the diffuser
PB 3 - plenum box PB3

Dimensions

1 - plenum box PB3
2 - connection opening
3 - diffuser
4 - reducer
5 - mounting bar
6 - blades
7 - electric drive

D	ø D	ø D1	ø D2	ø D3	H	H1	H2
500	498	790	630	398	320	60	470
630	628	920	800	498	320	80	570

Installation

Fitting on air shaft

Fitting on plenum box

Minimum Distance Between Diffusers

Minimum distance between two diffusers must be at least 5 times the diameter of the diffuser at minimum flow and 10 times the diameter of the diffuser at maximum flow.