Demand control of water temperature
Optimisation of heating and cooling across multiple zones is managed by using the WISE Water functionality. It ensures that the water temperature is adjusted based on room demand which in turn saves energy and enhances comfort.
Main functionality
This functionality, called WISE Water, connects a set of waterborne products, such as Parasol, Paragon and/or Adriatic, to monitor and control their cooling and heating demands. WISE Water calculates an average temperature setpoint based on all connected rooms, and adapts to different building sections with varying cooling/heating needs. This ensures valves remain open as much as possible and the water temperature is optimised to reduce energy consumption. This while the indoor comfort is improved.
The system supports adjustable configurations and integrates seamlessly with SMARTLink+ for advanced control functionality.
Added value
WISE Water strives to minimise the difference in temperature between the room and the inlet water. Advantages:
- Reduced energy consumption from supplying warmer/colder water, 2-3% savings per degree Kelvin.
- Water temperature setpoints determined by room demand.
- Improved indoor comfort and reduced risk of draughts.
- Lowered risk of condensation.
- Easy set-up of one or multiple groups: select rooms and determine calculation method for setting group temperature.
- May be combined with SMARTLink+ for additional savings.
Description
The flow chart shows schematics of the WISE Water function. The example shows cooling optimisation, however, heating is identical.
- Each chilled beam calculates its needed water temperature based on the indoor cooling demand. Groups with selected chilled beams can be created in SuperWISE.
- SuperWISE then calculates an average water temperature for each group, based on its settings. The calculated temperature setpoint is communicated to the connected shunt group. For the optimisation function to work properly, a shunt group is needed for each system (heating/cooling/change-over).
- SuperWISE compares groups and the highest temperature need is communicated to the chiller/heat pump/multifunctional unit. In this example, an offset of 1,5 degrees Celsius is used.
- If a climate beam in the group is equipped with a sensor for relative humidity (RH), a dew point control is automatically activated, using this room as a reference. If the group holds several chilled beams with RH sensors, the most demanding need determines the water temperature.
Technical details
- SuperWISE gathers the temperature demand from each chilled beam in a group. Multiple groups for heating and/or cooling may be defined in SuperWISE which then calculates an average demand for each group.
- The highest demanded temperature from the group is communicated for heating/cooling, including a potentially needed offset.
- The chiller/heat pump continuously ensures the determined water temperature until a new setpoint is communicated from SuperWISE.
- Each shunt group controls the temperature delivered by SuperWISE.
Products
Here is a selection of the products included