Secon

Standard Air Curtain

Applications

Secon is the visible, compact door air curtain for optimum shielding of larger doors and gates (shopping centres, shops, DIY stores, supermarkets), which require effective draughtreduction. Installation-ready unit for 3 different installation variants: Free-hanging, flush with the ceiling or for installation in suspended ceilings.

Special design

Secon is available in 2 variants. SLW – for smaller to mid-sized entrances with a balanced pressure ratio and ULW – for larger doors and difficult entry situations. In the SLW standard air roll, the recirculating air intake is on the room side and the air discharge directly at the door. In contrast, in the ULW version (reversed air roll), the mixed air intake is by the door and the air discharge on the room side.
The air exits via the Coanvara discharge system, a multi-nozzle system with optimised, drop-shaped profiles. Using the Coanda effect to bring the individual streams together results in a very broad, homogenous air stream. The purposely long profiles, which are parallel and steplessly adjustable in both directions (up to 40°), act as a flow straightener. This ensures the stream mixing factor remains low, as desired.
The selected discharge temperature is carried far down to the floor, effectively preventing the room from cooling down. This means the discharged air is heated less than it would have been if a conventional air curtain had been used.

The housing

Self-supporting, powder coated sheet steel housing. Screws are not visible. Available in RAL 9010 as standard (pure white). Other colours are available. Intake grille with micro grille behind it as an intake filter, for service-friendly use. Can be removed without tools for easy cleaning. Inspection panel hinged on one side, opened with casement fasteners. The Coanvara discharge system is flush with the underside of the unit.
Water and electrical connections can be made either from above (right-left) or from the side.

Heating media

Heat exchangers for different heating media
LPHW: For normal temperature LPHW 70/50 °C and lowtemperature LPHW 60/40 °C, other temperatures available on request. High-quality heat exchanger made from copper tubes, with pressed-on, extra-strong aluminium fins.

The fans

Equipped with individually-driven, efficient, ErP-compliant AC radial fans from ebm-papst as standard. These can intake air in both directions, are maintenance free, have vibration-free bearings and come with integrated thermal contacts for motor protection. Can also be supplied with EC fans on request. The fans are located on a motor plate, which (after opening the inspection panel) can be pulled out downwards.

Mounting

Easy installation thanks to grooved tracks with sliding blocks (M10) set into the top of the unit. This simplifies adjustment of the unit’s position during installation. In the standard version, the unit does not need to be opened for electrical connection. Connection terminals for the voltage supply, as well as the connectors for the control unit and parallel operation can be accessed from the outside. (Plug&Play)

Maintenance

Easy to clean (micro grille) without opening the unit by simply vacuuming the intake grille.
Inspection panel closed and secured with a casement fastener (hinges on one side) on the lower side of the unit – easy to open.

Control unit

Electronic TEKADOOR GTC AC control unit, multifunctional with touch display, including an optional ModBus interface
A GTC 1 AC control unit is used as standard for models with LPHW heating. The units come with 20 m preassembled and shielded data cable. The GTC 1 AC 5-stage control unit includes the ability to switch from manual to automatic and from summer mode to winter mode as standard. A solenoid valve of up to 2.5 A can be connected as an option for the winter mode. The control unit includes a manual to automatic mode switch and a potential-free contact for enabling via any on-site BMS or BEMS. A choice of 5-stage fan operation is offered as standard. A maximum of 10 units can be connected in parallel.

Advantages at a glance

Made in Germany
ErP conform
Certified by TÜV-Süd
Robust self-supporting steel/aluminium composite construction
Selection of individual RAL colours available
Unit lengths up to 3000 mm
Service-friendly thanks to intake grille with micro grille
Coanvara discharge system for stepless, parallel adjustment of the discharge angle
Large throw distance, low noise, optimum shielding
Simple to install

Documents

PRODUCT DOCUMENTS
- Data sheet

Secon

Details

Connections

Heating connections – flow and return (dimensions depend on the model) – on top of the unit as standard for easy connection to the on-site heating system. Optionally, the connections can also be located at the side.

_0000_tekadoor-luftschleier-secon-schnittstelle-datenkabel

Data cable connection/interface

Simple, standard plug and play connection of the data cable and an optional solenoid valve on the top of the unit.
The connection can be offset on request.
Control:
Input for the data cable to the control unit.
Auxiliary:
Output for parallel operation with other units.

_0001_tekadoor-luftschleier-secon-anschlussbox

Connection box

Simple electrical connection via connection box (voltage supply 230V/50 Hz) on the top of the unit; side connections are available as an option.

Coanvara discharge system

Multi-nozzle system with optimised, drop-shaped profiles, steplessly adjustable in both directions (parallel), up to 40°.

Secon

Optional Accessoires

Thermostatic control valve

Setting range + 20 °C to + 35 °C, limits the discharge temperature (constant supply air temperature limitation). Also available as a 3-way valve.

Door contact solenoid switch

In automatic mode switches on the door air curtain in the preselected stages.

Ceiling attachment set

For trouble-free, vibration-free ceiling attachment, consisting of M10 threaded rods up to 1000 mm in length, vibration dampers, turn-buckles and counter nuts.

Frost protection thermostat

For monitoring LPHW heat exchangers exposed to the risk of frost. As soon as the intake temperature falls below +7 °C, the fans are switched off and an optional solenoid valve is opened.

Secon

Optional Accessoires

Solenoid valve

Opens or closes the warm water circuit in the summer/winter setting of the control unit, in order to close the heating water circuit and save energy during summer operation or when the air curtain is not working (normally closed).
Caution: If solenoid valves are used, it is expressly recommended to install a frost protection thermostat (automatically actuated) and a strainer.

Electronic control valve

Electronic valve with 0-10V impulse and blow-out temperature sensor completely installed and wired. In combination with the GTC 2 control, a preselected blow-out temperature is kept constant.

Secon

Gallery

This post is also available in: German