Designing installations with flat stations

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Product InstalSystem 5
Type of article DESIGN APPLICATION
Source for translation GOLD rev. 17.0


Scope of lesson

The article shows how to design installations using flat stations. The latter may become a connection point for an apartment heating and sanitary system.
Asynchronization of medium intake for domestic hot water heating is taken into consideration while dimensioning the flat station feeding system. Flat station type and size are chosen by the user, meanwhile the program diagnoses whether a given flat station is able to deliver enough output to the heating system to which it is connected and for declared/calculated domestic hot water parametres.

Modules and program configuration

  • InstalSystem 5 package with the following modules:
    • Flat stations
    • Heating systems
      and as an option:
    • Radiant systems - if the station is supposed to supply an apartment radiant system with heating medium
    • Tap water systems - if calculations for the flat station and the supply system should include flow rate of a sanitary system designed with InstalSystem 5

Initial state

The project contains a building structure (storeys, rooms) and a storey plan drawing.
Room heat load values for heating has been declared.
For more information, see: [[{{{link}}}]] Preparation of building structure
For more information, see: [[{{{link}}}]] Import underlay files

Steps to perform - Scenario I - valueHot water outflow declared manually

Defining catalogues and general data

SAMPLE PROJECT IN INSTALSYSTEM
Project files

How to calculate downloaded file?

Initial state, isproj
Installation containing flat stations in a multifamily building, isproj
Designed with InstalSystem 5 Rev. 17.0
Required modules Flat stations
Heating systems
Radiant loop systems
Radiators sizing
Tap water systems
Project range heating systems, sanitary systems
Used catalogues

Basic radiant systems
Neutral radiators
Brass, cast iron and steel pipe couplings and fittings
Copper pipes and fittings EN 1057
PE-X/AL/PE-RT pipes and fittings
Basic insulation catalogue
Neutral valves catalogue - typical construction
Media
standard water taps and whiteware
Flat stations - sample solutions

Type of building residential building
present
4-storey
Building structure Underlay basement, dwg
Underlay groundfloor, dwg
Underlay floor, dwg
Underlay attic, dwg
Drawings range Plan views
Prepared by
www.instalsoft.com
Legal disclaimer Possibility to copy the whole projects or its fragments
Calculation results Full calculation results, xls
Full printout, pdf
General heating results, pdf
General water supply system results, pdf
Bill of materials, pdf
Drawing results Basement, dwg
Groundfloor, dwg
Floor, dwg
Basement, pdf


General data window

  1. Catalogues tab – read the catalogue containing flat stations.
  2. Thermal systems / Flat stations tab - complete Type and other general data, in particular:
    • V̇HW Appartment (Hot water outflow),
    • ΔθHW (Hot water heating degree)
      1. General data

Editing installation

Inserting and graphic editing of flat stations

  1. Choose the Convectional/Rad.-floors,walls editing scope.
  2. Insert a flat station using the Flat station button. Turn to a chosen angle, if needed.
    2. Inserting Flat stations - Convectional/Rad.-floors,walls editing scope

Verification and completion of installation data

  1. In the window Data table, verify data of eachFlat station element in scope of:
    • Type,
    • Distance from storey elevation,
    • V̇HW Appartment,
    • ΔθHW (ATTENTION! The input temperature of domestic hot water feeding the flat station results from properties of a given producer's heat exchanger, and it usually amounts to 10°C),
    • accessories and their data.
      3. EditingFlat stations - Data table

Connecting flat stations

  1. Connect heating system medium feed and return on the primary side to the place indicated by the symbol . For more information, see: [[{{{link}}}]] Connecting storeys with the "Stack" element
  2. Connect radiant system feed and return to the place indicated by the symbol , created according to the following article:Designing of radiant heating floor and wall installation.
  3. Connect radiator heating system feed and return to the place indicated by the symbol , created according to the following article: Designing heating systems with convective radiators.

(optional) Copying Flat station elements with/without apartment systems on other storeys

Installation copying

  1. Select Flat station and/or chosen system elements.
  2. Copy selected elements on neighbouring storeys with the function Copy selected elements to the storey above/Copy selected elements to the storey below.

Creating a copy of a whole storey

General data window
  1. Building and surroundings / Storeys management tab - select a storey and press Copy.

Verification of installation structure correctness

  1. Verify correctness of the installation structure with the Check connections function (shortcut: Shift + F2).
  2. Verify correctness of the installation structure and detect collisions using 3D view.
    For more information, see: [[{{{link}}}]] Verification of the correctness of installation structure

Calculation performance and verification

  1. Perform full calculation by clicking the calculator icon situated in the Calculations section on the toolbar.
  2. Verify diagnostics and calculation results, in particular:
    • flow rate on the heat exchanger primary side - if it exceeds the admissible value, such an error may occur:
      4. Heat exchanger out of range.

      in such a case, correct computational data (θs,H and/or V̇HW Appartment i/lub ΔθHW) or choose a different exchanger dimension manually,
  • required total output,
    5. Total output required.

  • (in selected versions) the required buffer tank capacity,
  • list of flat station materials.
    6. List of flat stations.

For more information, see: [[{{{link}}}]] Calculations and diagnostics

Printout/export of results

  1. Print/export drawings.
  2. Print/export tables.
    For more information, see: [[{{{link}}}]] Export / print results and drawings

Steps to perform - Scenario II - Hot water outflow value calculated by the Tap water systems module

Defining catalogues and general data

General data window

  1. Zakres projektu tab - checkWater supply systems.
    7. Declarated project scope.

  2. Catalogues tab – read the catalogue containing flat stations.
  3. Thermal systems / Flat stations tab - complete Type and other general data, in particular:
    • V̇HW Appartment (Hot water outflow),
    • ΔθHW (Hot water heating degree)
    • Manner of defining: Hot water outflow: "User specified" or "Acc. to calc. of the module: Water supply systems"
      • for "User specified" - the V̇HW Appartment (Hot water outflow) value is declared manually in the field below and in theData table window after inserting stations on the drawing
        8. User-specified hot water outflow

      • for "Acc. to calc. of the module: Water supply systems" - the V̇HW Appartment (Hot water outflow) value will be calculated on the basis of the flat station connected sanitary system flow rate, according to the calculation norm selected in the Tap water systems module. Additionally, it is possible to choose the method of dimensioning the water supply system (Primary network sizing acc. to: "TU Dresden" or "DIN 1988-300").
        9. Declaring manner of defining hot water outflow

Editing installation

Inserting and graphic editing of flat stations

  1. Choose the Water supply editing scope.
  2. Insert the flat station using the Flat station icon.
    10. Inserting Flat stations - Water supply

Verification and completion of installation data

  1. In Data table, verify data of each Flat station element in scope of:
    • Type,
    • Distance from storey elevation,
    • V̇HW Appartment (ATTENTION! If, in the General data window, the Acc. to calc. of the module: Water supply systems option is selected, this value is calculated automatically),
    • ΔθHW (ATTENTION! The input temperature of domestic hot water feeding the flat station results from properties of a given producer's heat exchanger, and it usually amounts to 10°C),
    • accessories and their data .
      11. Editing Flat stations - Data table

Connecting flat stations

  1. Connect heating system medium feed and return on the primary side to the place indicated by the symbol . For more information, see: [[{{{link}}}]] Connecting storeys with the "Stack" element
  2. Connect radiant system feed and return to the place indicated by the symbol , created according to the following article:Designing of radiant heating floor and wall installation.
  3. Connect radiator heating system feed and return to the place indicated by the symbol , created according to the following article: Designing heating systems with convective radiators
  4. Connect medium inflow for the sanitary system as well as sanitary system feed and return to the place indicated by the symbol , created according to the following article:Designing of water supply system installation.

Verification of installation structure correctness

Steps to perform just like in Scenario I - Hot water outflow value declared manually.

Calculation performance and verification

Steps to perform just like in Scenario I - Hot water outflow value declared manually.

Printout/export of results

Steps to perform just like in Scenario I - Hot water outflow value declared manually.


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