The article presents the method of designing a heating system with convector heaters from the source to terminal units, inclusive of complete control and balancing.
Modules and program configuration
InstalSystem 5 package containing the module:
Heating systems
Radiators sizing
Videos related to the article
The videos present the topics described in this article, but they aren’t a recording of this lesson.
Catalogues – select and move necessary catalogues to the Catalogues in project: table. To speed up the selection, the filters can be used. For more information, see:Using catalogues and catalogues data in the project.
Storeys management – for each storey verify and set basic parameters:
Distance between windowsill and floor (Hs),
Default distance of pipe-runs (except for supplying ceiling panels) from the floor specified in storey data: S - supply, R - return (ΔHpipe-run,,S and ΔHpipe-run,, R). File:Convective heating storeys management.png2. Storeys management.
Thermal systems / Sources – verify default parameters for the heating source.
Thermal systems / Distribution system / Types and default data – append default types:
Thermal systems / Radiators / Radiator sizing options – verify and append basic parameters for Bathroom and Other radiators:
Default restrictions of radiator size (Default sizing method),
Radiator sizing options. Pay special attention to the Adjust flow rates function. If this function is active, the flow rate at the radiators will be calculated to obtain 100 % of the Required heating output in each room. If this function is inactive, calculations will be based on ensuring the Default temperature difference ( Δθs,H - Radiators) of the heating medium. In this case, the coverage of the Required heating output in the rooms will differ from the 100% value.
Inserting and graphic editing of convective radiators
Carry out inserting and graphic editing operations using the AUTO and ORTO modes.
Select editing scope Convectional.
Insert multiple radiators under the windows / into recesses. This operation requires a created complete building structure. For more information, see:Preparation of building structure - Complete building structure. Remove radiators from places where they are not intended.
Insert radiators manually at other locations.
Changing radiator Type, Connection type, direction of connection
If necessary, adjust the radiator Type, Connection type and direction of connection based on the location of the Riser and the intended routing of the pipes feeds. Use tools for marking multiple components.
Adjust the position of Anchor - the point of the radiator that remains in the same place after the radiator has changed its length after being sized.
Change the type of radiators to Trench convectors in the required locations and specify a negative value of Distance from floor (set in storey data). File:Convective heating trench convector.png6. Trench convectors.
In case of necessity, change the Type, Connection type and other settings for bathroom radiators.
Inserting and graphic editing of installation components
Insert Valve on supply and return pipe feeds of non-integrated radiators and convectors. The shape of valves (straight/angle) has an impact on proper selection of radiator connections.
Insert Radiator connection sets at the required radiator connection points.
Installation structure correctness verification
Verify correctness of the installation structure with the Check connections function (shortcut: Shift + F2).
Verify correctness of the installation structure on 3D view.
Copying of repetitive part of installation to the next level
If the layout of the rooms is the same on each floor, copy repetitive parts of the installation to the next level using Copy selected elements to the storey above function. Note that in this case Riser is automatically extended.
Hydraulic balancing of the installation
If necessary, make hydraulic balancing of the installation by using Balancing valves and Δp controller. Note that Δp controller is inserted by default with a paired balancing valve.
Calculations and diagnostics
Launch calculations by clicking the Heating systems icon File:Heating and cooling systems.png in the Calculations section on the Main tools. Check and adjust errors and warnings in the Diagnostics window.
Bill of materials - heating / cooling. Every item of the installation presented in the result table can be found in active windows by using File:Loupe icon.png icon. File:Convective heating results.png10. Verify calculation results.
Specify the required settings and execute export of the installation using the IFC file export icon on the Main tools bar in the Printout and export section when the Printout editing scope is active.
