MiniManager PRO

Management of one CHP unit, boilers and heat storages. Sophisticated CHP plants with e.g. seveal boilers or additional external temperatures can be controlled by the MiniManager PRO. This superordinate control is specifically adapted to the requirements of the CHP scheme. To optimize virtual power plants, for example, an extended heat storage management, reserve holding for peak load demands and the operation by timetable can be programmed. Also, the MiniManager PRO can be equipped with a boiler sequency switching to coordinate several boilers.

CHP unit selection and deselection by

• Heat demand
  Guiding parameters for the control of the CHP unit are the return flow temperature and the filling level of the storage. As soon as the heat demand drops below the CHP unit’s thermal power, it switches to partial load.
• Power demand
  Selection and deselection via a contact of the customer side building control system. Optional also with >Zero feed-in control< to avoid feeding power into the mains.
• Emergency power operation
  If equipped with battery pack and emergency cooler, the CHP unit can optionally take over the supply of an emergency power bar in case of mains failure – seamless or (when CHP unit is idle) within seconds via instant start.
• Gas storage filling level
  At sewage or biogas plants, the filling level of the gas storage is regarded to optimize the CHP unit operation.

Boiler selection and deselection

The CHP unit generally runs with priority. At higher heat demand or unavailability of the CHP unit, the boiler is selected automatically.

Heat storage management

Depending on the filling level of the heat storage, the heat generators are selected and deselected via temperature sensors and the storage filled or discharged.

Connection to the building management system (BMS)

Many options for the communication with a BMS are available – from digital standard contacts to customer adapted bus protocols as Profibus-DP, Modbus, LONBus and others.

Optional:

Combination with RemoteManager