Use
- Weather compensated heating and/or cooling control.
- Control of the independent mixing circuit (mixing valve and circulation pump).
- Control of the additional mixing circuit (mixing valve and circulation pump).
Compact weather compensated controller AHD20
The compact weather compensated controller AHD20 integrated in the motor drive housing. It allows direct mounting on more than 20 mixing valves from different manufacturers.
Read > Why is the heating controller an important part of the heating system?
Capabilities of the compact AHD20 controller
- 2 pre-set hydraulic schemes.
- Up to 4 sensors can be connected (inlet, outdoor, room/return, energy source).
- Two modes of operation, weather-controlled (by outside temperature) or thermostatic (by room temperature).
- Intuitive set-up with keypad and colour display.
- Possibility to connect a return sensor and limit the power of the heating circuit.
- Quick and easy "click" mounting system on the mixing valve.
- Automatic adjustment of the screen according to the mounting direction.
- Possibility to operate without room unit (following the heating curve).
- BUS connection to multiple controllers in the case of a larger system.
- Fault diagnostics and automatic activation of an alternative operating mode.
- Connectivity to the SeltronHome platform with remote control.
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| Technical features |
| One electronic relay |
| Temperature setting 10÷90 °C |
| Additional sensor for source temperature measurement |
| User functions |
| Space heating or cooling according to a timed programme |
| Protecting the heating system |
| Anti-freezing protection |
| Anti-blocking function for mixing valve |
| Anti-blocking function for pump |
| Limiting the maximum supply temperature for underfloor heating |
| Display of data |
| Display of notifications and warnings about the heating system operation |
| Display of temperatures and other operating data |
| Detailed display of temperatures for the current day |
| Overview of temperature data for the last week |
| Mixing valve direction of rotation signalling |
| Circulation pump control and signalling |
| Remote access |
| USB connection to a PC |
| Setup and installation |
| Startup Wizard for easy and fast device startup |
| 14-language user interface: EN, DE, FR, NL, PL, ES, SL, IT, CZ, SK, HR, RU, HU and UA |
| Connector system for sensor connection |
| Setting the operation by selecting the hydraulic scheme |
| Adjusting the direction of rotation of the mixing valve |
| Logging and displaying changes to settings |
| Ability to retrieve basic settings in case of loss or unwanted changes |
| Can be mounted on different types of mixing valves |
| Click-to-install system |
| The sensor coupling is pre-wired into the regulator |
| Power cord with plug |
