The energy saver
Dual EC is the energy-saving model for applications in shops and retail. Wherever there is only a limited supply of heating energy available which must be used efficiently, the Dual EC has a special way of fulfilling all the requirements on a modern door air curtain unit. Installation-ready model available in 3 installation variants. Free-hanging, installed flush with the ceiling as a cassette unit or equipped with intake chamber and sliding supports for installation in a suspended ceiling.
Equipped with 2 rows of fans, inside, 2 airflows are created – an outer (unheated) and an inner (heated) airflow. The airflows are routed separately all the way through to the discharge. Here, the unheated outer airflow has a stabilising effect on the overall flow behaviour, whereby a higher throw distance is achieved and the shielding performance optimised. The saving in heating energy is around 40% compared with conventional door air curtains.
Self-supporting sheet steel housing. Screws are not visible. High-quality powder coating, RAL 9016 as standard (traffic white). Other colours are available.
Inspection panel hidden behind the intake grille. Double, aerodynamically-optimised aluminium discharge fins (naturally anodised), flush with the underside of the unit and adjustable in 5 stages. Perforated metal intake grille (same colour as the unit) with micro grille behind it as an intake filter.
A choice of heat exchangers for different heating media:
LPHW – for low temperature LPHW 60/40, other temperatures available on request.
DX – soldered under nitrogen – for operation with heat pumps (only heating modus possible). High-quality heat exchanger made from copper tubes, with pressed-on, extra-strong aluminium fins for optimum heat transfer.
Easy to clean (micro grille) without opening the unit by simply vacuuming the intake grille. Discreet secured inspection panel hidden on the lower side of the unit (hinges on one side) – easy to open.
The efficiency of the EC fans used by TEKADOOR is > 90% under partial load operation. This is 30–35% higher than for conventional AC fans. This does not just increase the efficiency, but also reduces the operating costs. The individually-driven EC fans with integrated motor protection can intake air in both directions. They have vibration-free bearings and are controlled using a PWM signal (pulse width modulation) – and with 0-10 V for the DX. They do not just comply with Directive ErP, but actually exceed this standard.
Extremely simple mounting thanks to the rivet nuts (M8) incorporated on the upper side of the unit and optionally-available assembly materials. 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.
Electronic TEKADOOR GTC EC control unit, multifunctional with touch display, including an optional ModBus interface
A GTC 1 EC 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 EC 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 or stepless 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 / EC fans
- Reduced heating costs thanks to dual technology
- Certified by TÜV-Süd
- Robust, self-supporting sheet steel housing
- High-quality powder coating
- Individual colours available (standard RAL 9016)
- 3 installation types
- Individual unit lengths up to 2500 mm
- Easy-maintenance filter cleaning thanks to micro grille
- Aerodynamically optimised double discharge fins
- Different heating media possible