Multi-family Buildings with Flat Stations

  • Residential Building with multiple family homes with flat stations
  • In multi-family houses, it is typical to have a district heating substation in the basement supplying the flats with hot water according to the demand for heat and hot water. A decentralized heating system comprises an installation with flat stations built into each apartment. These are then supplied with hot water from the central substation in the basement. Making the flat stations comparable to one-family house substations.

    There are generally three application types that are for multi-family buildings with a flat station system:

    1. Indirectly connected application for supply of flat stations
    2. Indirectly connected application with heat accumulator for supply of flat stations
    3. Directly connected application with mixing loop for supply of flat stations

     

    Depending on the choice of the flat station there may be a need for a basement substation to regulate either the supply temperature or the pressure levels. The basement substation applications are:

    Application Types  

    1. Indirectly connected application for supply of flat station
      A heat exchanger that controls the building side supply temperature and separates the building system from the DH network. The application can supply an unlimited amount of hot water at a constant temperature with pressure conditions that suit the flat station applications being used 
       

    2. Indirectly connected application with heat accumulator for supply of flat stations
      A storage tank is charged by einther the heat exchanger separating the DH system and the building system or from a local heat source, e.g. solar panels. The hot water in the tank is further used to supply the flats in the building. To maintain desired temperature during idling, the water in the heat accumulator is circulated through the heat exchanger 
       

    3. Directly connected application with mixing loop for supply of flat stations
      A directly connected application where the building supply temperature is optimized with a mixing loop 

     

     

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