Air Conditioning System LTG Indivent®

Modern air conditioning systems are required to remove heat loads and airborne substances from the occupied space in a safe and effective manner, without producing any draft. The air conditioning system´s construction, however, must leave room for flexibility with view to the appearance and use of the room. Furthermore, the system must be cost effective within a wide performance range.
The LTG system Indivent^® meets these requirements. It offers high thermal comfort by combining the advantages of both a mixed and a displacement air flow.

Functional Principle

The LDB linear diffuser with integrated cooling is installed in the ceiling over the core wall while heating is provided through radiators located under the window. With this configuration, identical flow patterns during summer and winter are achieved.

Recirculated air is drawn in from the room and across a cooling coil. The mixture of fresh air and recirculated air is blown into the room through a linear diffuser. In the local mixed air zone (1) the temperature / velocity differences between the ambient air and the supply air are reduced.

Close to the floor, the cooled air jet (2) directs itself at low speed and with little turbulence across the occupied space towards the window. The air speed is virtually independent of cooling load. The temperature difference between the head and the foot level is less than 1K.

Air heated by room loads rises to high level (3).

Above the occupied space a custion of warm room air with an increased pollution concentration is formed and removed from the room. In this way the formation of temperature layers ensures cost effective system operation (4).

Advantages

Range of Products

The core element of the Indivent system is the LDB linear diffuser with integrated cooling, the Indivent^® unit. The following types are available:

Induction unit for ceiling installation LHG Local mixed air zone Deflection of the air flow near the floor Air heated rises to high level