District heating controller RVD 120A Landis & Staefa RVD120A

Parameter and setpoint setting with rotary knob and menu-controlled
Display of all operating modes via built-in display.
7-day program with 3 time settings per day and holiday operation.
DRT limitation for maximum decrease of the return temperature.
Relay and sensor test.

• Frost protection
• Pump and valve protection.

Precontrol:
- Maximum limitation of return temperature
1 pump heating circuit
- Advance flow temperature control options:
- weather dependent
- weather- and room temperature-dependent
- room temperaturedependent only
- Automatic heating limitation
- Automatic adaptation of the heating characteristic
Process water heating
- Storage tank system with 1 sensor
- Load pump
Technical data:
- Operating voltage: AC 230 V +15/-10 %
- Analogue inputs:
- 1 x Ni1000/NTC575
- 1 x Ni1000/Pt500
- 3 x Ni1000
- Relay outputs: 4 x AC 230 V, 2 A

For more information see Downloads