Compact weather-compensating controller Seltron AHD20
5 286,00 kr
Sale price
5 286,00 kr
Regular price
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Compact weather-compensating controller Seltron AHD20
5 286,00 kr
Sale price
5 286,00 kr
Regular price
Taxes included.
Shipping calculated at checkout.
Basic product information
The Seltron AHD20 is a compact, weather-compensated controller built into the actuator housing. It is used to control the mixing valve and 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 an independent mixing circuit (mixing valve and circulation pump).
- Control of an additional mixing circuit (mixing valve and circulation pump).
Features
- 2 preset hydraulic diagrams.
- Option to connect up to 4 sensors (supply, outdoor, room/return, heat source).
- Two operating modes: weather-compensated (based on outdoor temperature) or thermostatic (based on room temperature).
- Intuitive setup using a keypad and color display.
- Option to connect a return sensor and limit the heating circuit output.
- Quick and easy "click" mounting system on rotary and ball valves.
- Automatic display adjustment depending on the mounting orientation.
- Option to operate without a room unit (according to the heating curve).
- BUS connection option for multiple controllers when using a larger system.
- Fault diagnostics and automatic activation of an alternative operating mode.
- Connection to the SeltronHome platform with remote control options.
Manual operation switch
Manual mode switching on the compact AHD controller is activated by pressing the button. When switching is activated, control of the mixing valve and, if applicable, the circulation pump is switched off to save energy. Manual operating mode is indicated on the display.
Quick installation
To remove the controller, release the safety knob on the flange, then remove the controller from the valve. To do so, press and hold the release button on the flange and remove the controller from the valve. During operation, the controller cannot come loose from the valve by itself. Installation accessories are available for most mixing valves on the market.
User-friendly interface
The user menu consists of a color display and a keypad. The keypad is deliberately positioned below the manual movement button, preventing accidental changes to the controller settings. For clear, user-friendly data display, the controller has a built-in graphical color display with a resolution of 240 x 240 pixels and adjustable brightness. Automatic screen orientation ensures that data is legible regardless of the installation position.
Plug-in connectors
The compact AHD controller has a built-in socket for the power cable plug. This allows easy disconnection during maintenance, without the need for tools. Sensors and other connections are connected to an external connection box, which allows connection of: T1-T4 sensors, a bus connection to another controller, and a room unit.
Technical data
| TFT display | yes |
| Keypad | yes |
| Power consumption | Maximum 3.5 W |
| Standby power consumption | Maximum 0.5 W |
| Torque | 5 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 power consumption | 5 W |
| Power supply for built-in clock | CR1025 battery (Li-Mn) 3 V |
| Built-in clock accuracy | +/-1 s (24 h) at 20 °C |
| Ingress protection rating | IP42 according to EN 60529 |
| Safety class | Class I according to EN 60730-1 |
| Temperature sensor types | Pt1000 |
| Housing material | PC - dark gray |
| Operating temperature | 0÷50 °C |
| Storage temperature | -20÷65 °C |
| Product weight | 1 000 g |