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Seltron AHD20 – Compact Weather Compensated Controller

Overview

The Seltron AHD20 is a compact, weather-compensated controller built into the actuator housing. The Seltron AHD20 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.

  • For controlling mixing valves in heating or cooling systems.
  • Switchover between heating and cooling.
  • Switchover between heating and domestic hot water heating.

Features

  • 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” mounting system on rotary and ball valves.
  • Automatic adjustment of the screen according to the mounting direction.
  • Possibility of operating without a room unit (according to the heating curve).
  • 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.
Seltron AHD20

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