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Heating Compensators | PDS2-H Heating Weather Compensator with Modbus

PDS2-H heating weather compensators control water temperature in variable control loops. The controller is DIN-rail mounted and compact in design with built-in LCD and touch sensitive buttons for set up. LCD display shows in the user mode the temperatures, pump status and control valve position. The readings are automatically rotated for ease of view.

PDS2-H controller is configured using the LCD display and touch sensitive buttons. In the programming mode parameters such as the weather compensation curve settings, boost or night setback operation, pump temperature ECO setpoint etc. can be configured. The configuration is easy using an intuitive menu structure.

PDS2-H controllers can be used with PT1000 sensors. The room sensor can be either wired PT1000 sensor or using FLTA wireless receiver a wireless room temperature sensor can be used. The control valve can be 0..10Vdc, thermic (pulse width modulation) or 3-point 24Vac (switching to 0V).

PDS2-H has built-in Modbus RTU communication that can used to connect the controller to building management systems or the PDS2-H can be used with WebBiter Web-Browser interface. Using WebBiter all plant parameters are available for display and analysis via a standard web-browser.


PDS2-H Weather Compensator Wiring Details
PDS2-H Weather Compensator Application Example  
Power Supply: 24Vac/dc, 2VA
Inputs: 3 x Resistive Inputs; PT1000 (flow, outside and room temperatures)
1 x Analogue 0..10V Input (boost/setback/wireless room sensor)
Outputs: 4 x Digital Outputs; 1A 24Vac Triacs Switching to 0V
4 x Analogue 0..10Vdc Outputs (Control Valve, Alarm, Fixed 10V, Time Signal)
Typical User Settings: Curve Shift -25/+25 degrees (boost/setback)
5-Point Compensation Curve
Room Setpoint (if room sensor in use)
Communication: Modbus RTU RS485 Communication
Web-Browser Interface Option:: Yes - Using WebBiter
Mounting:: DIN-rail (consumer box mounting options available)
Dimensions: W53 x H90 x D58mm