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Heating Optimiser Compensators | PDS2-O Heating Optimiser with Modbus

The PDS2-O is a heating optimiser designed to control accurately in heating systems. The controller measures the room temperature, and switches the heating on at the optimised time to reach the desired setpoint at the beginning of the occupancy. The optimiser can also use outside temperature in the optimisation process for added accuracy.

The PDS2-O Optimiser can be used together with PDS2-H Weather Compensator to provide optimiser / compensator operation for heating plants. The controller has built-in LCD display that indicates the current status of the controller and can be used for the controller configuration.

PDS2-O controllers is used with PT1000 sensors. The controllers hae 4 digital outputs to switch on/off the boiler plant and/or the circulation pump.

The built-in RS485 Modbus communication allows the controller to be connected to central supervisory system such as WebBiter embedded web-server or to a BMS system.

PDS2 Heating Optimiser Wiring with Compnesator



PDS2 Heating Optimiser Wiring

The PDS2-O controllers has 4 operating modes:-

  • Night (Holiday)
  • Boost
  • Day
  • Optimum Off
PDS2-O Heating Optimiser Operating Modes  
Power Supply: 24Vac/dc, 2VA
Inputs: 1 x PT1000 Local Room Sensor / Remote Sensor
1 x PT1000 Outside Temperature
1 x Digital Input (Night Override)
Outputs: 4 x Digital Outputs; 1A 24Vac Triacs Switching to 0V (Boiler, Pump, Boost and Day Outputs)
2 x Analogue 0..10Vdc Outputs (Control Valve, PDS2-H Output)
Typical User Settings: Day Room Setpoint
Night Room Setpoint
Display: LCD Display, Automatic Rotating Display
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