OVAL EC

Design air curtain

Applications

Applications Oval EC is particularly suited to modern and architecturallysophisticated entry areas: in large warehouses, flagship stores, airports, shopping malls, hotels and banks. Free-hanging unit with optional attractive suspended cladding to cover the supply lines. Thanks to its oval design and low maintenance operation, Oval EC will satisfy architects, planners, clients and operators.

Special design

Oval EC is available in variable unit lengths up to 2.5 m. It is also simple to individually adjust and retrofit in existing door systems. Oval EC is characterised by a low noise level when compared with other conventional units. Sheet metal housing and fan casing have been acoustically insulated.

The housing

Self-supporting steel-composite construction made from powder coated sheet steel or stainless steel (polished to grain size 240). Screws and rivets are not visible. Powder coated intake grille in the same colours as the unit or stainless steel version, consisting of a perforated plate with micro grille behind it for easy maintenance. Aluminium discharge fins for an infinitely adjustable, unidirectional air stream Energy supply lines are invisible behind suspended cladding (optional). For wider entry areas it is possible to arrange multiple units in a row and install the cabling and piping inside.

Heating media

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

EC fans

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 with 0-10V. They do not just comply with the ErP Directive, but actually exceed this standard.

Mounting

Simple mounting thanks to the rivet nuts (M10) incorporated on the upper side of the unit and optionally-available assembly materials.

Maintenance

Easy to clean (micro grille) without opening the unit by simply vacuuming the intake grille.

Control

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
Particularly low noise
Service-friendly thanks to filterless micro-intake grille
Individual unit lengths up to 2500 mm
Aerodynamically-optimised discharge fin
Robust, self-supporting steel/ aluminium composite construction
Individual RAL colours available or, alternatively, a stainless steel version
Different heating media possible
Simple to install

Documents

PRODUCT DOCUMENTS
- Data sheet

OVAL EC

Details

Connections

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

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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.

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Connection box for LPHW units

Simple electrical connection via connection box (voltage supply 230V/50 Hz) on the top of the unit. Optionally, the connections can also be offset.

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Discharge fin

Aluminium discharge fins (drop profile), depending on the model available in designs with double or multiple fins, for an infinitely adjustable, unidirectional air stream. During the heating period, the fins should be tilted outwards by 10 to 15 degrees to prevent cold air coming in from the outside. In contrast, during operation in the summer, the fins are tilted inwards, so that the cooled indoor air cannot escape.

OVAL EC

OPTIONAL ACCESSORIES

Thermostatic straightway valve

Limits the discharge temperature (Setting range + 20 °C to + 35 °C) 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 stage.

Ceiling attachment set

For problem-free, vibration-free ceiling attachment, consisting of M10 threaded rods, up to 1000 mm 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 temperature falls below +7 °C, the fans are switched off and an optional solenoid valve is opened.

OVAL EC

OPTIONAL ACCESSORIES

Solenoid valve

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

Thermo-electric shut-off valve

230 V / 50 Hz, normally closed. On-site installation in the heating flow. Actuation via the summer/winter circuit. Summer function – closed. Winter function – open.

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.

OVAL EC

Gallery

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