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Heating Actuators AKH


The MDT Heating Actuator AKH has an integrated PI controller for heating and cooling each channel. To control the heating, the actuator receives the room temperature, for example, from an MDT push-button or presence detector with temperature sensor; it’s not necessary to use an external temperature controller. Up to 4 x 230 V AC (3 x 24 V AC) electrothermal actuators can be connected and controlled at each of the non-wearing outputs.

  • Installation Type: MDRC
  • Channels: 4-fold, 6-fold, 8-fold
  • Device width: 2SU, 3SU, 4SU

Product features

  • New generation with function extension
  • Each channel controls up to 4 electrothermic valve drives (230 VAC)
  • Free assignment of the outputs to the controller channel
  • Controllable with 1 Bit (switching / PWM) / 1 Byte actuating variable or direct control with temperature value via KNX bus
  • Integrated PI temperature controller (heating and cooling)
  • Comfort-, night- and frost protection, summer- / winter operation
  • 1 Bit +/-, 1 Byte or 2 Byte absolute object to set the given value
  • Setpoint values are stored on bus voltage failure
  • Emergency operation if cyclic actuating variable fails
  • Overload protection with fault message object (230 VAC)
  • Mains voltage failure detection with fault message object (230 VAC)
  • Objects for heating request and cyclic movement of the valves
  • Comprehensive scene functions
  • Compatible with many visualizations
  • Minimum flow temperature
  • Diagnostics for each channel with 14 Byte plain text object
  • Quick application download (long frame support with ETS 5 or higher)
  • Production in Germany, certified according to ISO 9001
  • 3 year warranty

Available Variants of this series:


  • Channels: 4-fold
  • Device width: 2SU


  • Channels: 6-fold
  • Device width: 3SU


  • Channels: 8-fold
  • Device width: 4SU


Device Configuration App (DCA) ETS5/6
From ETS5.7.x
07/23 V5.1.2.1add to download list
Productdatabase ETS5/6
from ETS5.7x
04/22 V3.2add to download list
Functional overviewadd to download list
Datasheetadd to download list
Assembly and operational instructionsadd to download list
Technical manualadd to download list
Tender texts
CAD-drawingadd to download list

Device Configuration App (DCA) ETS5/6
From ETS5.7.x

Date: 07/23
Version: V5.1.2.1

Download: etsapp add to download list


Productdatabase ETS5/6
from ETS5.7x

Date: 04/22
Version: V3.2

Download: knxprod add to download list

Functional overview

Download: pdf add to download list


Download: pdf add to download list

Assembly and operational instructions

Download: pdf add to download list

Technical manual

Download: pdf add to download list

Tender texts

Download: Link


Download: zip add to download list

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