AKH-0400.03 Heating Actuator 4-fold, 2SU MDRC, 24/230VAC

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.

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