Change-over examples
- Dennis De Beuckeleer (Unlicensed)
- Filip Hulsbosch
Hysopt supports the design of specific components with dual operating conditions and the simulation of dual-mode end units.
Design
It is possible to connect individual change-over end units to a collective heating and cooling installation
It is also possible to multiple individual change-over end units to a collective change-over circuit which is then connected via a merger to an individual heating and cooling installation. The type of circuit can only be made with the available base circuits as described in Change-over Library
Simulation
This template features a fundamental schematic where an end unit and/or merger circuit can regulate a building's temperature. Within these change-over simulations, a control signal is used between -1 and +1. When a signal is generated between -1 and 0 this will indicate the controller is working in a cooling mode and between 0 and +1 the controller is working in a heating mode. On the individual PICV the absolute value will be used for modulation.
The template below is used to control an individual room when connected to an individual heating and cooling installation. When the room temperature drops below 20°C, the end unit functions as a heater. Conversely, if the temperature exceeds 22°C, it operates as a cooler.
The template below is used to control multiple rooms when connected to a collective change-over circuit which is then connected via a merger to an individual heating and cooling installation. Based on the mode selector either the heating or cooling mode will be enabled. This will enable the individual room temperature controllers and the PI controller at the merger to control the water temperature.
