Applications

Termodeck applications

TermoDeck can be combined with all types of air-conditioning (AC) units. From the AC-unit, generally placed on the roof, supply air ducts run in vertical shafts down to each floor inside the building and then to horizontal ducts placed in central corridors usually within false ceilings. Small branch ducts feed air into each slab and the air then enters a room via diffusers fixed to the soffit of the slab. Diffusers are normally located close to external walls. The exhaust air is normally removed into the central corridor plenum and is returned to the AC-unit in the conventional way.

The main distribution ductwork in the corridor is similar in construction to that found in conventional systems. The main difference with TermoDeck is that every individual structural hollow core slab is supplied with a small quantity of air from the main supply duct; in other words a small ‘feed’ duct every 1200mm along the length of the corridor.

The basic Termodeck system

The picture below illustrates TermoDeck with a central AHU feeding supply air into individual hollow core slabs. (In this case, there is insulation above the slab as this is the top floor).

Termodeck with Individual control

The Switch-Flow system together with TermoDeck satisfies very high requirements for individual adjustment of the room temperature. This system requires that chillers are installed to make it possible with instant cooling during working hours. At a chosen temperature, a motor driven damper changes the air route directly to the diffuser instead of through the labyrinth of the slab. The shorter distance prevents the supply air taking heat from the slab. This gives a very fast, individual controlled system with efficient cooling effect.