3 Construction and operation
The TopVent
®
TW serves as an air curtain to protect entrance areas against the
cold. The unit is installed over or next to the door. It takes in room air, heats it by
means of the heating coil and blows it back into the room at a high speed. This
creates a barrier of flowing air, which protects the indoor climate from external
influences.
There are 3 unit sizes, which are each equipped with an infinitely variable fan and
a custom-made heating coil.
3.1 Unit construction
The TopVent
®
TW consists of the following components:
■
Heat exchanger consisting of copper tubes and aluminium fins
■
Tangential fan with energy-saving EC motor and flow-optimised rotor, infinitely
variable, maintenance-free and quiet with a high degree of efficiency
■
Compact casing made of galvanised sheet steel
■
Suspension set for vertical or horizontal installation of the unit
■
Outlet nozzle
1
2
3
4
5
■
1
Heat exchanger
■
2
Suspension set
■
3
Casing
■
4
Fan
■
5
Outlet nozzle
Fig. 1: Unit construction
5
TopVent
®
TW
Design, installation and operation
Construction and operation
4 216 285-en-02
