Wall-mounted heating controller AHD20

for heating and coolingremote-controlled

The AHD20 is a compact, weather compensated controller built into the actuator housing. It is used to control the mixing valve and the circulation pump to regulate the supply temperature during heating or cooling, depending on the outdoor temperature. Weather-compensated heating and/or cooling control. Control of independent mixing circuit (mixing valve and circulation pump). Control of additional mixing circuit (mixing valve and circulation pump). 2 pre-set hydraulic schemes. Possibility of connecting up to 4 sensors (supply, outdoor, room/return, power source). Two operating modes, weather compensated (by outdoor temperature) or thermostatic (by room temperature). Intuitive setting with use of keypad and color display. Possibility of connecting a return sensor and limiting the power of the heating circuit. Quick and easy “click” type installation system on mixing valve. Automatic screen adjustment according to the instalation direction. Possibility of operating without a room unit (according to the heating curve). TFT display - Yes Keypad - Yes Own consumption - Maximum 3.5 W Standby power consumption - Maximum 0.25 W Torque - 6 Nm Rotation angle - 90 < ° Rotation speed - 2 min 90 < ° Mixing valve control - 3-point PID Circulation pump control - 2-point (ON/OFF) Relay output - electronic relay, 1 (1) A ~, 250 V~ Supply voltage - 230 V ~, 50 Hz Maximum own consumption - 5 W Power supply of built-in clock - Battery CR1025 (Li-Mn) 3 V Possibility of BUS connection with several controllers when using a larger system. Error diagnostics and automatic activation of an alternative operating mode. Connectivity to the SeltronHome platform with remote control option.