B.1. MESSAGES FOR COMPONENTS IN THE PROJECT<br>

B.1. MESSAGES FOR COMPONENTS IN THE PROJECT

Error: No flow

This error occurs when the component across which the medium flows is not connected on either side, or when the pipe-runs connected to the component are not connected anywhere else.

Warning: Cannot determine flow direction

This warning occurs when part of the system has no source and the application cannot determine the direction the medium is supposed to flow.

Error: Component not conn. (supply)

Error: Component not conn. (return)

This error occurs when the component (terminal unit) is not connected to the system on the supply (return) side.

Error: Component not connected

This error occurs when the component (pipe-run) is not connected to the system on one side.

Error: Component not connected at all

This error occurs when the component (pipe-run, terminal unit) is not connected at all (remains separate in the drawing).

Error: Components form loop

This error occurs when the pipe-runs of the system form a loop (ring). The application does not handle ring systems – in that case the system must be transformed into a radial system. The entire loop is indicated upon clicking on this error.

Error: Component forms loop with other components

This error occurs when the pipe-runs of the system form a loop (ring). The application does not handle ring systems – in that case the system must be transformed into a radial system. The single component of the loop is indicated upon clicking on this error.

Error: Pipe-run is a single point on drawing

This error may occurs when after moving pipe-runs one of them is reduced to a single point (its length on the drawing is zero). This cannot be observed in the drawing as such pipe-run is represented by a point, which may be taken for a point belonging to another pipe-run. You can delete this pipe-run by clicking on the error message and then pressing the ‘Delete’ key (may not be visible).

Error: More than two remote connection components with same symbol

This error occurs when more than components of the “Remote connection” type have the same symbol and components that make a pair cannot be identified.

Error: Unpaired remote connection component

This error occurs when a remote connection in the system has no other remote connection assigned to form a pair.

Hint: Vacant manifold outlets

This hint is displayed when the number of terminal units connected to manifold is lower than the specified number of manifold outlets.

Error: No 'source' or 'remote connection' type components in worksheet

This error occurs when no components of that function have been specified. Lack of source may give rise to other connection errors (e.g. ‘Cannot determine flow direction’).

Error: Different configuration of remote connection outputs

This error occurs when remote connections that form a pair have other type of functional connections specified (e.g. one remote connection specified as ‘return+supply’, the other as ‘supply’ only).

Error: Reverse mixer connection

This error occurs when a mixer is improperly connected with the system (suggesting that flow direction is from terminal unit to boiler).

Warning: No spare outlet ports left in manifold

This warning is displayed when a manifold is entered, its size and number of free spare outlets is specified, after which a greater number of outlets are used than initially specified (outlets designated as spare are used).

Error: Part of system not connected with source

This error occurs when part of the system being designed is not connected to source. This may happen when system is unintentionally disconnected during editing or when no source is specified.

Warning: Cannot calculate elevations properly - pipe-run angle not consistent with available angles

This message is displayed when a pipe-run is arranged at an angle other than 0°, 90° or the angle defined in general data and enabled as an option for calculating elevations in isometric drawing (see “Project options”). The interpretation of this pipe-run is impossible and elevations cannot be calculated. Elevations can be imposed in component data table.

Warning: Large difference between elevation calculated and user specified

This message is displayed when the difference between the calculated component elevation (when elevation calculation in isometric drawing is enabled) and the elevation specified by user is more than 1 m.

Error: Component connection error in project

This message is displayed when connection errors occur in the worksheet. Detailed error messages are displayed as a list in the “Diagnostic results” window.

Error: Heat. zone must be connected to manifold by means of pipe feeds, not pipe-runs

This error occurs when the user connects a heating zone with a manifold by means of a pipe-run (pair of pipe-runs), which is not allowed from the viewpoint of calculations, as the connection should be made with a ‘Pipe feed’ component (‘Pair of pipe feeds’).

Error: No manufacturer of floor heating system selected in general data

This error occurs when no floor heating manufacturer was selected for the project in general data. In this case pipe arrangement, pipe type, floor covering, pipe spacing cannot be selected and therefore calculations cannot be made.

Error: No manufacturer of wall heating system selected in general data

This error occurs when no wall heating manufacturer was selected for the project in general data. In this case pipe fastening, pipe type, pipe spacing cannot be selected and therefore calculations cannot be made.

Error: Cannot arrange peripheral zone by congesting for single meander

This error occurs when a “Single meander” arrangement has been assigned for the heating zone in a room and at the same time a peripheral zone formed by congesting pipe arrangement has been specified, which is impossible to execute.

Error: Total HZ area is larger than room surface area

This error occurs when the HZ area specified by the user is larger than the calculated one or the specified area of the room.

Error: Surface area for bill of material is less than effective area

This error occurs when the area for bill of materials specified by the user is less than the calculated one or the specified effective area.

Error: It is not possible to connect shadow-components to original components

This error occurs when the user tries to connect a primary component (to be calculated) with a shadow component (not calculated). Primary and shadow components may co-exist on one worksheet. However, they cannot be connected with each other.

Error: Single-pipe connections error

This error occurs when connections in a single-pipe system are improper and the structure of the system cannot be identified.

Warning: HZ's of various floor structure thickness in room

This message is displayed when heating zones in a room have floor structures of different thickness – this may cause the floor in the room to have a stepped structure.

Warning: HZ structure thickness different from the most often used in worksheet

This message is displayed when a heating zone in a worksheet has a different floor structure assigned and its thickness differs from that of the other HZ’s.

Error: Not all valve outlet ports connected

This error occurs when outlet ports in a three- or four-way valve are not connected to the system.

Hint: HZ is connected to manifold using virtual pipe feeds

This message is displayed when pipe feeds between manifold and the heating zones have not been entered and the HZ’s are connected by means of virtual pipe feeds. The option of generating virtual components is available in general data.

Error: HZ area not specified

This error occurs when the surface area of a heating zone in square metres has not been specified.

Error: R.h. pipe feed cannot be connected to pipe-run

This error occurs when a radiant heating pipe feed is connected with a pipe-run. Pipe feeds can only be used to connect HZ with a manifold – in other cases pipe-runs must be used.

Error: Error in bill of materials processing

This error occurs when a bill of materials is generated – indicates an internal error in program directory. Contact your software supplier – a data file needs to be supplied.

Error: No catalogues assigned to project

This error occurs when no catalogues have been selected for the project for selecting component types in the system.

Error: System not adjusted (pressure too low or other errors)

This error occurs when system cannot be regulated (adjusted). Usually additional messages are displayed to indicate errors which cause of this situation.

Error: Insufficient number of manufacturer's products

Customized versions of the software have a built-in safeguard which requires that a defined minimum number of manufacturer’s products be used. For instance: if we have a pipe manufacturer’s version then a certain minimum number of manufacturer’s pipes must used, if we have a radiator manufacturer’s version then the use of a minimum number of manufacturer’s radiators is required. Minimum quantities are related to the total quantity of material used for the project.

This software version does not enable calculating a project based on generally available materials only.

Error: This program version cannot calculate current data file

This error may occur when the software version used is not designed to calculate the given type of project file. For instance: when you try to calculate a chilling water system using software version that is designed to calculate heating systems only.

Error: Connection errors in worksheet

This error occurs when there are unconnected components in the worksheet. Additional messages are displayed describing the errors in detail.

Error: Wrong structure of single-pipe group

This error occurs when project includes improperly built single-pipe groups and their structure cannot be identified.

Warning: Default pipe type not selected for sheet

This message is displayed when no default pipe type for the worksheet is not selected from catalogue and specified in general data. Open general data (F7) and specify pipe type or assign a defined type to pipe-runs in data table.

Error: Default pipe type selected for sheet is not in catalogue

This error occurs when the default pipe type selected for the project is not in the catalogue. This may happen when the pipe type cannot be located in catalogues loaded into the project or a catalogue used before cannot be found.

Warning: Pressure drop at source not specified

This message is displayed when the type of flow resistance at source has been indicated in the data table and the value has not been specified (zeta or pressure drop [kPa]).

Error: Value for calculating pressure drop at source not specified

This error occurs when type of flow resistance at source has been indicated in the data table and the value 9kv) has not been specified

Error: Medium type in source not recognized in calculations

This error occurs when an unknown type of medium in the system is specified.

Error: Parameters of medium out of range

This error occurs when the entered parameters of the medium are out of the range allowed for calculation formulas

Warning: User specified pressure at source lower than minimum required pressure

This error occurs after calculations when the pressure at the source specified (in data table or in calculation options) is lower than the minimum required pressure.

Warning: User specified pressure at source higher than maximum required pressure

This error occurs after calculations when the pressure at the source specified (in data table or in calculation options) is higher than the maximum pressure required for the system. The excess pressure cannot be brought down by means of regulating components.

Error: Undefined pipe-run location

This error occurs when a pipe-run in the worksheet has no location assigned and when that location cannot be determined automatically.

Warning: Unlikely short pipe-run

This message is displayed when there are pipe-runs of e.g. zero length in the system. This is not necessarily a serious error, however it suggests that some data might have not been entered.

Warning: Unlikely long pipe-run

This message is displayed when there are pipe-runs of considerable length in the system. . This is not necessarily a serious error, however it suggests that some data might have not been entered.

Error: Too many pumps

This error occurs when a larger number of pumps are installed in a circuit. There may only be one pump on a pipe-run.

Hint: default type applied

This message is displayed when a component type has not been specified in data table and the default type specified in general data.

Error: Pipe diameter not sized

This error occurs when a diameter cannot be sized during calculations. Information is given whether this is caused by excessive flow resistance or velocity.

Warning: Maximum velocity exceeded

This message is displayed when calculations indicate that maximum velocity in pipe-run is exceeded (for specified or sized diameters).

Warning: Velocity less than minimum

This message is displayed when calculations indicate that velocity in pipe-run is lower than the minimum velocity (self-venting criterion in RH circuits.

Warning: Maximum friction resistance exceeded

This message is displayed when calculations indicate that maximum permissible (for specified or sized diameters).

Warning: Unlikely low ambient temperature

This message is displayed after the diagnostic run when the specified ambient temperature for pipe-runs is unlikely low.

Warning: Cannot size protection tube

This message is displayed when the diameter of a protection tube cannot be sized during calculations.

Warning: Significant medium temperature drop in pipe-run

This message is displayed when there is an excessive drop of temperature of the medium in a pipe-run (caused by large length of pipe-run and low velocity).

Warning: Cannot size diameter of vent pipe-run

This message is displayed when the diameter of a pipe-run cannot be sized during calculations.

Warning: Minimum pipe diameter exceeded

This message is displayed when calculations indicate that minimum pipe diameter has been exceeded.

Error: Cannot size diameter to match flow rate

This error occurs when a diameter cannot be sized to match the calculated flow rate.

Error: Pipe type not in catalogue

This error occurs when the pipe type selected in project is not in catalogue. This may happen when the pipe type assigned to pipe-run cannot be located in catalogues loaded into the project or a catalogue used before cannot be found.

Error: User specified diameter not in catalogue

This error may occur when a catalogue has been modified and the diameter used before has been deleted (catalogue used before cannot be found).

Error: Wrong value to calculate flow resistance

This error occurs when value of zeta/Kv is zero.

Error: Wrong fitting or pipe for specified temperature and pressure

This error occurs when a pipe-run of given set of types or a fitting cannot be used for the temperature and static pressure specified by the user.

Error: Pipe-run type not specified

This error occurs when pipe-runs with no type specified exist in the worksheet.

Error: Component type on pipe-run not specified

This error occurs when fitting components on pipe-runs have no type specified and the function of the component requires the type to be specified.

Warning: Cannot size component on pipe-run

This message is displayed when component on a pipe-run cannot be sized.

Error: Pipe or fitting component not matched to temperature or pressure

This error occurs when a pipe-run or a fitting cannot be used for the temperature and static pressure specified by the user.

Error: Unpaired differential pressure valve

This error occurs when no valve has been inserted to enable connection of impulse tube.

Warning: No diameter specified for existing pipe-run

This message is displayed when a pipe-run indicated as an existing component has no diameter specified.

Warning: Diameter range in catalogue too narrow

This message is displayed when the range of diameters in the loaded catalogue is narrow and does not enable sizing of pipe-run diameter.

Warning: Cannot size additional fitting

This message is displayed when an additional fitting on pipe-run has not been sized.

Hint: Inside diameter of pipe-run reduced

This message does not indicate an error. It is displayed when during calculations the inside diameter of a pipe-run is reduced between terminal unit and the source.

Error: Cannot adjust pair of pipe-runs

This error occurs when part of system, starting from the indicated pipe-run pair, cannot be balanced in calculations. This may be caused by excessive pressure differential between parts of the system, and the indicated pipe-run pair is situated between these parts.

Error: Cannot adjust pair of pipe-runs by means of differential pressure valve

This error occurs when during calculations part of system, starting from the indicated pipe-run pair, cannot be balanced despite the presence of a differential pressure valve. This may be caused by excessive pressure differential between parts of the system, and the indicated pipe-run pair is situated between these parts.

Error: Pipe-run not connected directly to final component

This error occurs when a ‘pipe-run with no flow’ is not connected to a target component.

Warning: Elbow on drawing not sized on pipe-run

This message is displayed when an elbow on drawing is not sized during calculations.

Warning: Cannot size fixed point

Warning: Cannot size sliding point

This message is displayed when a fixed (sliding) point on pipe-run is not sized during calculations.

Error: Insulation type not in catalogue

This error occurs when the insulation type selected in the project is not in catalogue. This may happen when the insulation type assigned to pipe-run cannot be located in catalogues loaded into the project or a catalogue used before cannot be found.

Warning: Cannot match insulation to pipe diameter

This message is displayed when insulation of thickness adopted to outer diameter of pipe-run cannot be found in catalogue.

Warning: Cannot size insulation

This message is displayed when insulation of the required thickness cannot be found in catalogue during calculations. The thickest available insulation is selected.

Error: Insulation of specified thickness not in catalogue

This message is displayed when insulation of the specified thickness cannot be found in catalogue during calculations.

Warning: Sized insulation thickness lower than required

This message is displayed when during calculations insulation of the required thickness cannot be found in catalogue and insulation of the same type and lower thickness is selected.

Warning: sized insulation thickness lower than specified

This message is displayed when during calculations insulation of the specified thickness cannot be found in catalogue and insulation of the same type and lower thickness is selected.

Error: Maximum permissible pressure drop on valve exceeded

This error occurs when operating range of valve has been exceeded.

Warning: Noiseless pressure drop on valve exceeded

This message is displayed when noiseless operation range of valve has been exceeded. Flow and / or pressure drop across valve can generate noise in valve. This message will only be displayed for certain types of valves. This may be caused by sizing or specifying excessive pressure, which in turn may result from excessive flow rate.

Error: Wrong specification of valve size

This error occurs when a valve with improper diameter specified is installed on a pipe-run.

Error: Cannot size valve on pipe-run

This error occurs when the operating range has been exceeded during calculations. Usually this indicates a very low or very high flow rate in pipe-run.

Error: Valve type not specified

This error occurs when no valve from the manufacturer’s catalogue has been selected or a catalogue used before cannot be found.

Error: Valve type not in catalogue

This error occurs when the valve type selected in the project is not in the catalogue. This may happen when the valve type cannot be located in catalogues loaded into the project or a catalogue used before cannot be found.

Error: Press. drop/Kv not specified for valve

This error occurs when flow resistance type for valve not from catalogue is indicated in data table and its value is not specified(zeta / press. drop [kPa]).

Error: Cannot size valve on system component

This error occurs when during calculations the size of valve on a system component has not been determined.

Warning: Value for calculating pressure drop on valve not specified

This message is displayed when flow resistance type for valve is indicated in data table and its value is not specified (Kv).

Error: Unknown valve type on terminal unit

This error occurs when valve type has not been specified or when valve catalogue used before or a valve in catalogue could not be found.

Error: Invalid fitting component type

This error may occur when. for instance, when a macro has been used in data with a valve, which must be inserted in a visual manner, that is using a graphical symbol. Similarly, a pump placed on a radiator connection pipe will be rejected, or a valve, which cannot be placed on a specific type of pipe-run.

Error: Data missing to calculate component

This error occurs when not all data sufficient to make calculations of a given component (e.g. filter, heat meter, strainer) are specified. This may happen when that component has no defined catalogue or is selected as ‘not from catalogue’ and has no data specified.

Error: Value for calculating pressure drop on component not specified

This error occurs when type of flow resistance is defined in data table for a component and its value is not specified.

Error: Fitting not in catalogue

This error occurs when a fitting on pipe-run is not defined or a catalogue used before cannot be found.

Warning: Valve head type not in catalogue

This message is displayed when valve head type has not been specified or valve head catalogue used before cannot be found.

Error: Radiator type not specified

This error occurs when radiator type has not been specified or radiator catalogue used before cannot be found.

Warning: Cannot size radiator

This message is displayed when a radiator in the system could not be sized during calculations.

Warning: Radiator sized with no surplus

This message is displayed when a radiator is sized during calculations without the indicated output surplus (the largest radiator in the catalogue does not allow retaining surface area surplus for thermostat).

Warning: Radiator supply temperature too low

This message is displayed when probably the temperature drop of water in the system is very high and the temperature of water at radiator inlet is too low or when the radiator is supplied from a floor heating system where the temperature is too low for radiator heating.

Warning: Large radiator oversizing

This message is displayed when the selected radiator is oversized (heating water flow rate is corrected for maximum oversizing of e.g. 50%, whereas the actual oversizing is higher).

Warning: Large radiator undersizing

This message is displayed when the selected radiator is undersized (heating water flow rate is corrected for maximum undersizing of e.g. below 60%, whereas the actual undersizing is higher.

Warning: Unlikely low radiator output

This message is displayed when the specified or calculated radiator output is relatively low.

Hint: Default non-integrated radiator type applied

This message reminds that in the data table no type has been specified for the radiator, meaning that default type specified in general data should be used.

Warning: Terminal unit connections not sized

This message is displayed after calculations when terminal unit connections have not been sized. This may, for instance, be caused by lack of connection manner specified in the terminal unit data.

Error: Invalid control valve type on terminal unit

This error occurs when a control valve installed on a terminal unit is of a type designed for other component type.

Error: Supply temperature on terminal unit too high

This message is displayed when the temperature of water supplied to a terminal unit in the project is too high.

Warning: Conditions for adjusting flow across radiator exceeded

Warning: Ability to adjust flow across heater exceeded

Warning: Substantial contribution of heat gains from pipe-runs

This message is displayed when contribution of heat derived from pipe-runs is high (in calculation options you can specify this maximum heat gains in radiator output above which the message is displayed – the use of a thermostat or a radiator with cost allocator is dubious).

Error: Temperature drop on terminal unit too low

This error occurs when the temperature drop on a terminal unit too low.

Error: Temperature drop inadequate to source used

This error occurs when the temperature drop on a terminal unit is not proper in relation to the source type specified in the project. Temperature drop should be positive for a heat source, whereas for a chill source that difference should be negative.

Error: User specified size not in catalogue

This error occurs when the specified size of terminal unit is not in catalogue or terminal unit catalogue used before cannot be found.

Hint: Default integrated radiator type applied

This message is displayed when in the data table no type has been specified for the radiator, meaning that default type specified in general data should be used.

Warning: Terminal unit connection system from other catalogue than connection pipes

This message is displayed when the connection system of a terminal unit has been taken from a catalogue other than the pipe-run type that connects the radiator to the system. In this case the terminal unit connection system or the pipe-run type usually has to be changed. If this is not done, then additional threaded pipe fittings will be used to connect the radiator and the pipe-run.

Warning: Terminal unit connections not sized - wrong radiator outlet direction (in plane/perpendicular to plane)

This message is displayed when connections of a terminal unit are not sized. This is associated with the fact that there are various variants of each connection system of a pipe manufacturer. This message is displayed when the user selects in the data table a connection system that does not match the radiator (for instance, user specifies floor connection and the radiator or its connection fittings require wall connection).

Warning: Terminal unit connections not sized - wrong valve shape (straight/angle)

This message is displayed when connections of a terminal unit are not sized. This is associated with the fact that there are various variants of each connection system of a pipe manufacturer. This message is displayed when the user selects in the data table a connection system that does not match the radiator (for instance, user specifies floor connection of an integrated radiator and the radiator has an angled valve that requires wall connection).

Warning: Terminal unit connections not sized - wrong location of outlet ports

This message is displayed when connections of a terminal unit are not sized. This is associated with the fact that there are various variants of each connection system of a pipe manufacturer. This message is displayed when the user selects in the data table a connection system that does not match the radiator (for instance, user specifies radiator with side connection and only bottom connection is available).

Error: Radiant heating covers 100% of room heat demand - radiator not necessary

This error occurs when floor heating covers heat demand in room and the radiator placed in the room is superfluous.

Hint: Default radiator type not specified

This message is displayed when no default type of radiator in catalogue is specified. Open general data (F7) and specify radiator type or assign a defined type to radiators in data table.

Warning: Radiator not sized

This error occurs when a radiator has not been sized during calculations (because of output, dimension limitations or temperature drop).

Error: Unbalanced circuit of terminal unit

This error occurs when a terminal unit circuit is not balanced during calculations, which is caused by lack of or inadequate type of control fittings in terminal unit circuit.

Error: No pressure drop specified

This error occurs when no value has been specified in data table for the flow resistance of a component with user specified flow resistance.

Error: Pipe type not specified

This error occurs when no pipe type has been specified for a heating riser or a catalogue used before cannot be found.

Error: Diameter must be specified

This error occurs when the diameter of a heating riser is not specified. The diameters of heating risers are not sized by the program.

Error: Wrong value of terminal unit output

This error occurs when the output of a radiator is not specified or the value specified is invalid.

Error: Room not specified for radiator with specified contribution

This error occurs when Wreq/Freq contribution and radiator heating contribution or Qrad/Frad is specified for a room, and the radiator has no room assigned to it (this may happen in the case of radiators placed on schematic view).

Warning: Value not specified for calculating pressure drop on terminal unit with user specified pressure drop

This message is displayed when flow resistance type is selected in data table for radiator of user specified resistance, and the value of that resistance is not specified.

Error: Invalid component for cooling system

This error occurs when in a cooling system a component is used, which is not designed for this type of system (e.g. a radiator).

Error: Pipe feeds diameter not specified

This error occurs when a terminal unit with user-specified pressure drop has no feed pipe diameters specified. This diameter is required to calculate flow resistance (when Kv is specified) or to size pipe fittings.

Warning: No pump in circuit

This error occurs when no pump is specified for a bypass bottle used in the project. This pump is required in the secondary circuit of the bottle (on the system side).

Error: No control valve for radiator in one-pipe system

This error occurs when pressure cannot be adjusted in a one-pipe system as there is no regulating valve on the terminal unit.

Error: Valve on supply side not from catalogue

Error: Valve on return side not from catalogue

This error occurs when valve type on the supply (return) side of the manifold cannot be found in catalogue or a catalogue used before cannot be found.

Error: Manifold type not specified

This error occurs when manifold type has not been specified neither in general data nor in data table of component or a catalogue used before cannot be found.

Error: Manifold with required number of outlets not found in catalogue

This error occurs when manifold of adequate size and defined type cannot be found in catalogues loaded into the project or a catalogue used before cannot be found.

Error: Manifold type not in catalogue

This error occurs when manifold type cannot be found in catalogues loaded into the project or a catalogue used before cannot be found.

Warning: Default cabinet not specified - cannot select cabinet for manifold

This error occurs when manifold cabinet type has not been specified neither in general data nor in in data table of component or a catalogue used before cannot be found.

Warning: Cannot select cabinet for specified manifold size

This error occurs when manifold cabinet of adequate size and specified type cannot be found in catalogues loaded into the project or a catalogue used before cannot be found.

Warning: No control valves on manifold

This message is displayed when no control valve is specified on a manifold and no adjustment can be made in the system.

Warning: No valve on supply side

Warning: No valve on return side

This message is displayed when no control valve is specified on the supply (return) side and no adjustment can be made in the system.

Error: Unknown RH supply source

This error may occur when a project file of version 2 is imported, where the system terminates with a manifold (and there is no source in the system).

Error: Cannot regulate connected heating zones

This message is displayed when heating circuits connected to manifold cannot be adjusted (because of excessive pressure differentials). A possible solution may be the division of the heating zones with the highest pressure differential.

Hint: Manifold type not specified - default type applied

This message reminds that in the data table no type has been specified for the manifold, meaning that default type specified in general data should be used.

Error: Flow rate exceeds maximum flow rate for pump

This error occurs when the mixing pump set used in the system is too small (in terms of calculated flow rate), which results in exceedance of maximum flow rate for the pump used in the set.

Error: Supply temperature lower than outlet temperature (after mixing)

This error occurs when the temperature reducing unit (mixer) is supplied with a medium the temperature of which is lower than the required minimum temperature at mixer outlet. This may be caused by high temperature drop of medium and/or by low temperature at source.

Error: Mixing pump set type not specified

This error occurs when the type of mixing pump set has not been specified in data table.

Error: Mixing pump set type not in catalogue

This error occurs when the mixing pump set selected for the project is not from catalogue. This may happen when the type cannot be located in catalogues loaded into the project or a catalogue used before cannot be found.

Error: Outlet temperature undefined

This error occurs when a temperature reducing unit (mixer) is used in a radiator system (without radiant heating). In this case the temperature at the outlet of the mixer cannot be determined. It has to be specified.

Error: Medium temperature too low

This error occurs when a temperature reducing unit (mixer) is used and the temperature at the outlet of the mixer is too low to feed the system (e.g. radiators).

Warning: Junction on pipe-run not sized

This message is displayed when no components forming a junction on a pipe-run have been sized (adequate sizes could not be found in catalogue).

Warning: Additional connection in junction not sized

This message is displayed when a cross-piece unit consists of two tees and an additional coupling may be required for connecting the tees (this coupling cannot be sized).

Warning: Connection with next component on receptor side not sized

This message is displayed when connection of a pipe-run with a component attached to it (that is a component which is situated closer to terminal units than the pipe-run for which the error is indicated) has not been sized.

Warning: Clamp for connecting with component on receptor side not sized

This message is displayed when a clamp required to fix the connection between a pipe-run and a component attached to it (that is a component which is situated closer to terminal units than the pipe-run for which the error is indicated) has not been sized.

Warning: Connection with next component on source side not sized

This message is displayed when connection of a pipe-run with a component to which the pipe-run is attached (that is a component which is situated closer to source than the pipe-run for which the error is indicated) has not been sized.

Warning: Clamp for connecting with component on source side not sized

This message is displayed when a clamp required to fix the connection between a pipe-run and a component to which the pipe-run is attached (that is a component which is situated closer to source than the pipe-run for which the error is indicated) has not been sized.

Warning: At least one connection with component on pipe-run not sized

This message is displayed when one or more connections of fitting components or pipe fittings on a pipe-run (e.g. valves, filters, offset pipes, etc.) have not been sized.

Warning: Clamp for connecting components on pipe-run not sized

This message is displayed when one or more clamps required to fix the connections of fitting components or pipe fittings on a pipe-run (e.g. valves, filters, offset pipes, etc.) have not been sized.

Error: Direction change component not found in catalogue

This error occurs when direction changing component is not from catalogue. This may happen when the component cannot be located in catalogues loaded into the project or a catalogue used before cannot be found.

Error: User specified available pressure too low

This error occurs when the available pressure at the source entered into data table is too low in relation to the required pressure in the system.

Error: User specified available pressure too high

This error occurs when the available pressure at the source entered into data table is too high in relation to the required pressure in the system (excess pressure cannot be reduced by means of regulating components).

Error: Supply temperature higher than Ts max.

Error: Supply temperature lower than Ts min.

This error occurs when the supply temperature of radiant heating system is higher than the maximum permissible temperature (lower than the minimum permissible temperature).

Error: Medium temperature too low

Error: Medium temperature too high

This error occurs when the supply / return temperature specified in the data table of the source is too low (too high). This is the consequence of the application of the source – for heating or for cooling.

Error: Controller does not provide proper pressure for circuit supplied

This error occurs when the pressure in the system is higher than the maximum pressure (or lower than the minimum pressure) handled by the pressure regulating valve.

Error: Pressure difference upstream of pd controller too low

Error: Pressure difference upstream of pd controller too high

This error occurs when the pressure upstream of controller is too low (too high) for the controller to ensure proper pressure in the system.

Error: Cannot set controller to pressure of circuit supplied

This error occurs when the pressure in the system is higher than the maximum pressure or lower than the minimum pressure that can be provided by the relief controller.

Error: Wrong connection

This error occurs when a relief controller is improperly connected to the system, i.e. there is a crossover or asymmetric connection.

Warning: Pressure difference upstream of pressure relief controller too low

This message is displayed when calculations indicate that the pressure differential upstream of the controller is too low.

Error: Pressure difference upstream of press. relief controller too high

This error occurs when calculations indicate that the pressure differential upstream of the controller is too high (its continuous operation is probable).

Error: Flow rate too high - divide HZ

This error is indicated when an excessive flow rate in a heating zone occurs in a radiant heating system and sizing criteria defined in manufacturer’s catalogues cannot be met. In this case the heating zone has to be divided – the number of parts into which the HZ should be divided is indicated.

Error: Flow rate too high (dividing - see other errors for this HZ)

This error is indicated when an excessive flow rate in a heating zone occurs in a radiant heating system, but it is not the most important error due to which the sizing criteria defined in manufacturer’s catalogues cannot be met. Other errors indicated for this heating zone should be reviewed. The heating zone has to be divided – the number of parts into which the HZ should be divided is indicated.

Warning: Flow rate too low

This error is indicated when the flow rate in radiant heating system is too low and sizing criteria defined in manufacturer’s catalogues (including the condition of self-venting) cannot be met.

Error: Pipe length exceeds max. length (dividing - see other errors for this HZ)

This error is indicated when the maximum pipe length in a heating zone is exceeded in a radiant heating system, but it is not the most important error due to which the sizing criteria defined in manufacturer’s catalogues cannot be met. Other errors indicated for this heating zone should be reviewed. The heating zone has to be divided – the number of parts into which the HZ should be divided is indicated.

Error: Pipe length exceeds max. length - divide hz into parts or increase max. length

This error is indicated when the maximum pipe length in a heating zone is exceeded in a radiant heating system and the sizing criteria defined in manufacturer’s catalogues cannot be met. In this case the heating zone has to be divided – the number of parts into which the HZ should be divided is indicated.

Error: Pressure drop too high (dividing - see other errors for this HZ))

This error is indicated when an excessive pressure drop in a heating zone occurs in a radiant heating system, but it is not the most important error due to which the sizing criteria defined in manufacturer’s catalogues cannot be met. Other errors indicated for this heating zone should be reviewed. The heating zone has to be divided – the number of parts into which the HZ should be divided is indicated.

Error: Pressure drop too high - divide HZ

This error is indicated when an excessive pressure drop in a heating zone occurs in a radiant heating system and the sizing criteria defined in manufacturer’s catalogues cannot be met. In this case the heating zone has to be divided – the number of parts into which the HZ should be divided is indicated.

Error: Flow rate too high - increase number of HZ circuits

This error is indicated when an excessive flow rate in a heating zone occurs in an industrial radiant heating system and sizing criteria defined in manufacturer’s catalogues cannot be met. In this case, instead of dividing the HZ, the number of circuits should be increased – that number is indicated.

Error: Flow rate too high (suggested number of HZ circuits - see other errors in this HZ)

This error is indicated when an excessive flow rate in a heating zone occurs in an industrial radiant heating system, but it is not the most important error due to which the sizing criteria defined in manufacturer’s catalogues cannot be met. Other errors indicated for this heating zone should be reviewed. Instead of dividing the HZ, the number of circuits should be increased – that number is indicated.

Error: Pipe length greater than max. length (suggested number of HZ circuits - see other errors in this HZ)

This error is indicated when the maximum pipe length in a heating zone is exceeded in an industrial radiant heating system, but it is not the most important error due to which the sizing criteria defined in manufacturer’s catalogues cannot be met. Other errors indicated for this heating zone should be reviewed. Instead of dividing the HZ, the number of circuits should be increased – that number is indicated.

Error: Pipe length greater than max. length - increase number of HZ circuits

This error is indicated when the maximum pipe length in a heating zone is exceeded in an industrial radiant heating system and sizing criteria defined in manufacturer’s catalogues cannot be met. In this case instead of dividing the HZ, the number of circuits should be increased – that number is indicated.

Error: Pressure drop too high (suggested number of HZ circuits - see other errors in this HZ)

This error is indicated when an excessive pressure drop in a heating zone occurs in an industrial radiant heating system, but it is not the most important error due to which the sizing criteria defined in manufacturer’s catalogues cannot be met. Other errors indicated for this heating zone should be reviewed. Instead of dividing the HZ, the number of circuits should be increased – that number is indicated.

Error: Pressure drop too high - increase number of HZ circuits

This error is indicated when an excessive pressure drop in a heating zone occurs in an industrial radiant heating system and sizing criteria defined in manufacturer’s catalogues cannot be met. In this case instead of dividing the HZ, the number of circuits should be increased – that number is indicated.

Error: Pipe type not specified

This error occurs when the pipe type in a heating zone has not been indicated in manufacturer’s catalogue or a catalogue used before cannot be found.

Error: Pipe type not in catalogue

This error occurs when the pipe type in a heating zone is not from catalogue. This may happen when the pipe type cannot be located in catalogues loaded into the project or a catalogue used before cannot be found.

Error: System type not from catalogue

This error occurs when the radiant heating system selected for the project is not from catalogue. This may happen when the system type cannot be located in catalogues loaded into the project or a catalogue used before cannot be found.

Error: Pipe spacing not available (OZ)

Error: Pipe spacing not available (PZ)

This error occurs when during calculations the pipe spacing for occupied (peripheral) zone cannot be found in catalogues loaded into the project.

Error: Control circuit unknown

This error occurs when the heating zone has been connected improperly to the system, i.e. there is a crossover of feed pipes or an asymmetric connection.

Error: Int. error: tfsMaxoz not specified

Error: Int. error: tfsMaxpz not specified

This error occurs when the value of tfs/qfsmax (maximum temperature of floor surface) is not specified or is incorrectly specified for the occupied (peripheral) zone of the heating zone.

Error: Wrong value Dt/Dqminoz (<=0)

Error: Wrong value Dt/Dqminpz (<=0)

This error occurs when the value of Dt/Dqmin (minimum temperature drop) is not specified or is incorrectly specified for the occupied (peripheral) zone of the heating zone.

Error: Wrong value Dt/Dqmaxoz (<=0)

Error: Wrong value Dt/Dqmaxpz (<=0)

This error occurs when the value of Dt/Dqmax (maximum temperature drop) is not specified or is incorrectly specified for the occupied (peripheral) zone of the heating zone.

Error: Floor covering not from catalogue

This error occurs when the covering type selected for the project is not from catalogue. This may happen when the covering type cannot be located in catalogues loaded into the project or a catalogue used before cannot be found.

Error: Int. error: structural panel not from catalogue

This error occurs when during calculations the structural panel type cannot be located in catalogues loaded into the project or a catalogue used before cannot be found.

Error: ts/qs is higher than admissible temperature for pipes

This error occurs when the supply temperature of a radiant heating system is higher than the maximum permissible temperature for the selected pipe type.

Error: Cannot apply any pipe spacing because tfs/qfsmax has been exceeded

This error occurs when during calculations due to exceedance of the maximum permissible temperature of floor surface the adequate pipe spacing cannot be located in catalogues loaded into the project.

Error: System type not specified

This error occurs when no radiant heating system type has been indicated in manufacturer’s catalogue or a catalogue used before cannot be found.

Error: Inside temp. (ti/qi) > tfs/qfsmaxoz

Error: Inside temp. (ti/qi) > tfs/qfsmaxpz

This error is indicated when the inside temperature specified for a room is higher than the maximum permissible floor temperature for the occupied (peripheral) zone of a heating zone.

Hint: There is a better spacing in heat output and flow (or cost) terms than the one specified

This message is displayed when the pipe spacing in a heating zone selected by the user is not the best spacing in terms of heat output, flow or cost – for calculation reasons other spacing is suggested.

Warning: Pipe spacing selected recently cannot be sized. Default spacing applied

This message is displayed when the pipe spacing selected by the user cannot be sized during calculations – the default spacing is adopted.

Warning: Selected fastening system uses concrete with lambda coef. other than specified in general data

This message is displayed when a fastening system is selected which uses cement of lambda coefficient other than the specified in general data. Calculations can be done, however results may be wrong because of lambda.

Warning: Temperature drop on supply side assumed for RH calculations not equal to actual temperature drop

This message is displayed when after making calculations (calculated ts/qs, flow rate and temperature drop) the radiant heating system is altered and the supply temperature and temperature drop is changed.

Error: HZ with return temp. limiter should be connected by means of pair of pipe-runs

This error occurs when a heating zone with a ‘return temperature limit’ is connected by means of pipe feeds instead of a pair of pipe-runs. This type of heating zone must always be connected to the system by means of pipe-runs.

Error: No return temperature limiter on return pipe-run

This error occurs when a heating zone with a ‘return temperature limit’ is not fitted with proper valve on the return pipe-run.

Error: Spacing selected manually does not answer condition tfs/qfsMax (change spacing or choose different supply temp. or top covering)

This error occurs when pipe spacing specified by user causes maximum floor surface temperature to be exceeded.

Hint: Default covering applied

This message reminds that in the data table no type has been specified for the heating zone, meaning that default type specified in general data should be used.

Warning: No pipe feeds passing through HZ heated by pipe feeds

This message is displayed when a heating zone heated by pipe feeds is specified in the project and there are no pipe feeds running across that zone to other rooms and the output cannot be determined.

Error: Pipe type for pipe feed not specified

This error occurs when no pipe type is specified from the manufacturer’s catalogue for a pipe feed.

Error: Pipe type for pipe feed not in catalogue

This error occurs when the pipe type selected for pipe feed in the project is not in catalogue. This may happen when the pipe type cannot be located in catalogues loaded into the project or a catalogue used before cannot be found.

Error: Qrh/Frh not specified

This error occurs when the output of radiant heating has not been specified by the user or it has not been calculated from the required output of terminal units in room and contribution of radiant heating to total output (one of the values is missing).

Error: Qrad/Frad not specified

This error occurs when the output of radiator heating has not been specified by the user or it has not been calculated from the required output of terminal units in room and contribution of radiator heating to total output (one of the values is missing).

Error: Room type not from catalogue

This error occurs when the room type selected for the project is not in catalogue. This may happen when the room type cannot be located in catalogues loaded into the project or a catalogue used before cannot be found.

Error: Incorrect manual Q/F distribution

This error occurs when the specified distribution of heat demand in room is incorrect.

Error: HZ's of various laying patterns not allowed in one room

This error occurs when HZ’s of various laying patterns are present in one room, which is not allowed.

Warning: Room symbol not specified

This message is displayed when a room symbol has not been specified.

Error: HZ's connected to different RH sources not allowed in one room

This error occurs when in a room there are HZ’s connected to different sources, which is not allowed as the supply temperature must be the same for the entire room.

Error: Wrong total contribution of radiators

This error occurs when the total contribution of radiator outputs in a room is incorrect.

Error: Specified output exceeds required output in room

This error occurs when the specified output of radiators in a room substantially exceeds the required radiator output.

Warning: Heat demand in room not covered

This message is displayed when calculations indicate that the heat demand in a room is not covered by available components or by distribution to other rooms.

Error: Pipe spacing not specified in general data (OZ)

This error occurs when pipe spacing matching the heat and flow calculation results has not been found in general data during calculations.

Warning: Calculated required delivery head of pump is 0 Pa

This message is displayed when the delivery head of pump is zero (pump not required).

Warning: Unlikely low delivery head of pump

This message is displayed when the entered delivery head of pump is too low.