Type FSL-U-ZUS

Ventilation units type FSL-U-ZUS supply the building with conditioned outdoor air. For the dissipation of higher thermal loads, room air is mixed with the outdoor air. In this way, the air flowing through the heat exchanger increases, as does the cooling capacity as a result.

缩放

Supply air units with secondary air function:

Mechanical ventilation
Heat exchanger for heating and cooling
Quasi displacement flow
Energy efficient radial flow fan
Fan speed controlled in 3 steps
Controlled/limited fresh air flow rate independent of wind pressure

Legend

1 Non-return damper
2 Shut-off damper with actuator
3 Outdoor air filter F7
4 Volume flow limiter
5 Secondary air filter G3
6 Secondary air damper
7 Sound attenuator
8 Supply air fan
9 Heat exchanger

SRO Outdoor air single room
SEC Secondary air
SRS Supply air single room

Supply air units maintain a high air quality in rooms by supplying outdoor air to the room. For the discharge of the air, the unit has a radial fan.
The fan takes in outdoor air, which flows through a volume flow limiter, a non-return damper, a shut-off damper and a fine dust filter. These components prevent the exceeding of the dimensioned outdoor air flow through wind pressure, the switching of the flow direction in case of a negative pressure on the façade and uncontrolled flows when the device is turned off. The F7 fine dust filter complies with the hygiene requirements of VDI 6022.
For the thermal conditioning of the outdoor air heat exchangers for air heating and cooling are used.
For output adjustment, the fan is operated in three stages. In stages 2 and 3, the supply air is greater than the outdoor air flow. The difference is taken in as room air near the floor and admixed to the outdoor air. A system-powered secondary air damper controls the room air flow rate.
Similar to displacement flow, the supply air flows into the room through the grille.

Under floor ventilation units type FSL-U-ZUS with supply air function and air mixture are used for decentralised ventilation of rooms and buildings. The devices are manufactured according to specific project-site conditions. Under floor units will be installed in the false floor adjacent to the façade. They are responsible for buildings with full-height glazing is an ideal solution.
In addition to outdoor air supply includes heating, cooling and filtering functions. For the energy-optimized application will be at increased heating or cooling load mixed air.

下载	分类	文件类型	标识号	格式/尺寸

FSL-U-ZUM	Decentralized Ventilation Systems	Technical Information	PI/FSL/10/EN/1	PDF / 168 KB
Underfloor units	Decentralized Ventilation Systems	Product Information	PI/FSL/17/EN/1	PDF / 161 KB