Rondell EC

For revolving and curved sliding doors

INDIVIDUAL
INNOVATIVE
ENERGY-SAVING

  • Applications

    Rondell EC is "The" door air curtain for revolving doors. The unit is delivered complete with a discharge duct and support, including discharge fins, in three installation variants. These variants can be installed on top of, integrated into or in front of the door.

  • Special design

    With every rotation, revolving doors bring in cold external air. Particularly for highly-frequented doors, a "cold patch" forms on the floor directly behind the revolving door. By using our door air curtain system "TEKADOOR Rondell EC", with an integrated air outlet especially adapted to the door radius, the spread of cold air is prevented and the recirculating air is warmed up to room temperature.
    This results in a pleasant indoor climate in the entry area. The design of the Rondell EC air curtain is always individual, corresponding to the existing or planned revolving door, whereby the discharge support with integrated fins is adapted to the door radius.

  • The housing

    This consists of an industrially-galvanised self-supporting sheet steel housing with intake grille and duct connection flange, discharge duct with support and integrated discharge fins. All the visible parts can be powder coated in standard RAL colours, depending on the wishes of the client. Fascia covers can be manufactured in RAL colours or, optionally, in stainless steel.
    Inspection panel optionally from above or below.

  • Heating media

    Heat exchangers for different heating media
    LPHW: for normal temperature LPHW 70/50°C and low-temperature LPHW 60/40°C, other temperatures available on request.
    DX: DX register 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.
    ELECTRO: 3-stage heat exchanger 400V, spiral form, corrosion resistant, with thermal overheating protection and switch-off delay.

  • 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 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.

  • Mounting

    Simple mounting thanks to the incorporated M8 rivet nuts on the top or at the sides of the unit (4 on each side). Accessories for mounting on the revolving door (top mounted unit) consist of two rectangular tubes and a set of bolts

  • Maintenance

    Easy to clean without opening the unit by simply vacuuming the intake grille. The inspection panel can be removed completely for maintenance work.

  • Control unit

    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. A GTC E EC control unit is used for models with electrical 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. With the standard GTC E EC control unit, the airflow can be selected manually in 5 stages and the heating capacity – depending on the fan level – can be selected manually in 3 stages. Each 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 konform / EC fans
  • Certified by TÜV-Süd
  • Individual solutions / custom-made depending on the revolving door
  • Different heating media possible
  • Service-friendly thanks to filterless intake grille
  • Individual colours – standard RAL colours available
  • Low noise, optimum shielding
Rondell EC

Rondell EC

Details



Connections

Connections

Heating connections – flow and return – for easy connection to the on-site heating system.
(Internal thread dimensions depend on the model series)



Connection box (LPHW)

Connection box (LPHW)

Simple electrical connection via connection box (voltage supply 230V/50 Hz at the side of the unit).

Exception:
Electrical units with a heating capacity greater than 22,5kW.



Data cable connection / interface

Data cable connection/interface

Simple, standard plug and play connection of the data cable and an optional solenoid valve.

Control:
Input for the data cable to the control unit.

Auxiliary:
Output for parallel operation with other units.



Discharge duct

Discharge duct

Discharge duct with guide plates (corresponding to the number of fans installed) consisting of a support adapted to the radius of the revolving door and vertically arranged fixed fins. All surfaces of the parts visible from below are powder coated in standard RAL colours according to the customer's wishes.

Rondell EC

Optional accessoires



Thermostatic 3-way valve

Thermostatic 3-way valve

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



Flexible heating connections

Flexible heating connections

Flexible heating connections with threaded connections for flow and return.

Length approx. 1 metre each



Bedienteil GTC 2 EC

Control unit GTC 2 EC

Possibility of combination of various automatic operations. A constant discharge temperature can be set via an optional electronic control valve, and a week timer is incorporated as standard, enabling up to 12 different switching times to be programmed per week.



Frost protection thermostat

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.



Solenoid valve

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.



Raumthermostat

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.

Rondell EC

Typen



Rondell, top mounted type AB

Rondell, Top mounted type AB

For use on revolving doors: installed on top of the door system body.
Mounting of the air curtain system with discharge duct on top of the doors; the recirculating air is sucked in through the front of the unit.
The discharge support – adapted to the door's outer radius – with integrated fins, is situated in front of the door's fascia.
An additional cover can be mounted in front of the discharge support for architectural reasons. Covers and surfaces of all the parts visible from below are powder coated in standard RAL colours according to the customer's wishes. Heating and electrical connections can be made either from above or from the side. Inspection panel optionally from above or below.



Rondell, Integrated type EB

Rondell, Integrated type EB

For use on revolving doors: integrated in the door system body.
Mounting of the air curtain system with discharge duct within the door system; the recirculating air is sucked in through suitable air replacement grilles provided on-site by the client. The discharge support – adapted to the door's inner radius – with integrated fins, is installed within the door system. The surfaces of all the parts visible from below are powder coated in standard RAL colours according to the customer's wishes. Heating and electrical connections can be made either from above or from the side. Inspection panel optionally from above or below.



Rondell, Front mounted type AB

Rondell, Front mounted type VB

For use on revolving doors: installed in front of the doors. Mounting of the air curtain system with discharge duct in front of the door (inside the building), e.g. in the suspended ceiling. The recirculating air intake is either from the suspended ceiling or from below via an additional intake chamber. The discharge support – adapted to the door's outer radius – with integrated fins, is situated outside the door system, in front of the door's fascia. An additional cover can be mounted in front of the discharge support for architectural reasons. Covers and surfaces of all the parts visible from below are powder coated in standard RAL colours according to the customer's wishes.
Heating and electrical connections can be made either from above or from the side. Inspection panel optionally from above or below.



Technical drawing


Rondell, Top mounted type AB / Integrated type

PDF

Connection-ready door air curtain system with intake at the front and discharge support fitted to the door radius.


Rondell, Front mounted type VB

PDF

Connection-ready door air curtain system with intake at the front and discharge support fitted to the door radius.
Unit to be installed in the suspended ceiling in front of the door.

Rondell EC

Circuit diagram



Standard circuit diagram for LPHW

PDF

Circuit diagram electrical heat exchanger

PDF

Standard circuit diagram for lphw (optional)

PDF