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Door air curtains for concealment within the ceiling.

Your benefits:
  • Low overall height, equipped with ceiling connection

  • Filter can be changed with ease without a tool

  • Water and electrical connection protrude out of the side of casing

Key features

  • Low investment, top performance
  • Specifically designed for 625 mm or 600 mm acoustic ceiling grids
  • For controlled screening of cold air with open doors
  • Unit and casing form a compact unit
  • Air screening reduces energy losses and increases comfort in your entrance area


  • High-performance radial fans for high air output, wired ready for connection, switchable between 5 stages
  • High-performance copper/aluminium heat exchanger
  • Mounting brackets for safe and fast installation
  • Simple filter replacement without tools
  • Electrical and hydraulic connections project through the side of the unit for shallow installation depth
  • Easily removable air filter (grade G 2 in line with DIN EN 779); easy to clean by vacuuming or washing
  • Anti-torsion mechanism for heating connections prevents damage to the heat exchanger when screwing in the valves; valves optionally available as accessories


  • Cost-effective design for use in DIY stores, garden centres, showrooms and sales floors
  • Single unit, encased, for use as a ceiling-mounted unit
  • Lengths 1.0, 1.5, 2.0 and 2.5 m
  • Suitable for mounting heights ranging from 2.3 to 3.0 m

... also good to know

  • Lower casing panel, hinged for ease of maintenance
  • The deflection grille in the air outlet ensures minimal turbulence and even air discharge
  • Casing powder coated in RAL 9016 traffic white; air intake grille and outlet air rectifier in RAL 9006 white aluminium
  • KaControl system or electromechanical control possible
  • Integration in KaControl networks or building automation systems, such as BACnet, Modbus or LON possible
Technical catalogues
UniLine, Cassette-UniLine door air curtainsdownload as.pdf, 8,03 MB
Spezial Cassette-UniLine door air curtains, screen-optimizeddownload as.pdf, 3,50 MB
Cross-product information
Product overview, products available in UKdownload as.pdf, 4,79 MB
Overview product innovations 2017download as.pdf, 2,41 MB
Spezial Hoteldownload as.pdf, 2,41 MB
Spezial retail chainsdownload as.pdf, 3,45 MB
Spezial Commercial buildingsdownload as.pdf, 2,17 MB
Spezial KaControl building automationdownload as.pdf, 794,90 KB
Installation manuals
Cassette-UniLine door air curtainsdownload as.pdf, 3,20 MB
KaControl for Door Air Curtainsdownload as.pdf, 2,48 MB
Building product declaration door air curtainsdownload as.pdf, 209,67 KB
TÜV Certificate ISO 9001:2008download as.pdf, 140,21 KB
EU Declaration of Conformity UniLine, Vario, Tandem door air curtainsdownload as.pdf, 1,70 MB
CAD drawings
Cassette-UniLine door air curtain, model size 10download as.dwg, 103,31 KB.dxf, 707,78 KB.pdf, 56,42 KB
Cassette-UniLine door air curtain, model size 15download as.dwg, 114,03 KB.dxf, 814,21 KB.pdf, 55,75 KB
Cassette-UniLine door air curtain, model size 20download as.dwg, 123,72 KB.dxf, 913,49 KB.pdf, 58,39 KB
Cassette-UniLine door air curtain, model size 25download as.dwg, 133,69 KB.dxf, 1014,23 KB.pdf, 61,82 KB
Technical details

This table only gives you a brief overview of the technical data. If you are looking for a more detailed product description and further technical data, please use the technical catalogue. The product configurator and the calculation program will help you to find the right article for your selection.

KaControl recirculating air control accessories


wall-mounted room control unit, with integral room temperature sensor, only for use with C1 controller
Installation instructions: i385_kurz_kacontroller_int.pdf

Download specifications (.rtf)
Article no.:

Room temperature sensor

wall-mounted, surface-mounted, IP30, colour white RAL 9010

Is the KaController installation site suitable for a temperature measurement? - If it is not suitable, e.g. behind a curtain, then a KaControl room temperature sensor should be chosen for each group!
Download specifications (.rtf)
Article no.:

Cable sensor

length 600 mm
Download specifications (.rtf)
Article no.:

Serial CANbus card

For increasing the number of units in a single-circuit system to a maximum of 30 units, one required per unit
For increasing the cable length from the first to the last unit from 30 to 500 m
Download specifications (.rtf)
Article no.:

Serial Modbus card

One needed per unit for connecting to KaControl panels or on-site Modbus networks
Download specifications (.rtf)
Article no.:

Control accessories electromechanical EC

Speed controller

for continuously variable fan speed control, flush-mounted
Download specifications (.rtf)
Article no.:

Compact controller

for fan speed control, room temperature control, door contact control and night heating operation, surface-mounted, max. two units can be connected in parallel
Download specifications (.rtf)
Article no.:

Surface-mounted frame

for surface-mounted installation of the speed controller, art. no. 194000146936
Download specifications (.rtf)
Article no.:

Control accessories electromechanical AC

5-stage switch

Installation instructions: i005_5stufenschalter_100925_100926_gb.pdf

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Article no.:

5-stage summer/winter switch

Only for use in conjunction with thermoelectric shut-off valve
Installation instructions: i006_5stufensommerwinterschalter_100928_100929_gb.pdf

Download specifications (.rtf)
Article no.:

Cascade module

for the parallel operation of two electromechanical door air curtains via one stage switch
Download specifications (.rtf)
Article no.:


Thermoelectric shut-off valve

230 V AC, type 100912
3/4", for KaControl and stage switch!
Download specifications (.rtf)
Article no.:

Leaving air temperature limiting valve

3/4", temperature setting range 20 - 50 °C
Download specifications (.rtf)
Article no.:


Replacement filter

1 set = 5 mats
Download specifications (.rtf)
Article no.:

Is the parallel operation possible of several Cassette UniLine units?

Yes, up to a maximum of two Cassette UniLine units can be switched in parallel via a cascade module. These groups can be extended by the use of further cascade modules.

Is radio remote control possible?

Yes, a wireless radio remote control can be used in place of a stage switch. This must be factory-fitted. This means that several door air curtains can be controlled by one control unit.

What grid dimensions are available?

Cassette-UniLine are designed for grid dimensions of 625 and 600.