Warnings

Locate the node where the warning appears.

Place a PRV before the node to lower the pressure to acceptable levels.

Reduce the pressure at the pump if it’s set too high.

Update the inlet pressure settings for the node if needed.

Ensure the flow source and floor heights are correctly set, as incorrect inputs may lead to high pressure.

Find the section where maximum pressure exceeds the limit.

Place pressure-reducing valves (PRVs) in the design at key points to reduce pressure.

Adjust the pump’s pressure output if it’s too high.

Double-check floor heights and flow source details to ensure accuracy.

Select a pipe material that supports higher pressure from Settings > Systems (you can view their maximum safe working pressure in the Catalog) .

Place PRVs in the system to reduce pressure before it exceeds safe limits.

Decrease the pump output to reduce pressure in pipes.

Ensure floor heights and flow source settings are correct to avoid pressure miscalculations.

Split the flow load by adding extra mixing valves to share the flow rate.

Ensure that connected fixtures and nodes have correct flow values to avoid overloading.

Add a vent on the unvented section to handle additional WC capacity.

Reorganize the pipework to include a vented connection closer to the WC fixtures.

In Settings > Systems, increase the max number of WCs allowed per unvented pipe if applicable.

Insert a vent near the fixture to reduce the unvented length.

Reroute the pipe closer to a vented drain to avoid exceeding the max unvented length.

Adjust the max unvented length in Settings > Flow Systems if needed.

Split fixtures across different stacks or levels to decrease load on a single stack.

Increase the max allowance of fixtures per level in Settings > Systems if necessary.

Place PRVs at key points to reduce the pressure.

Adjust pump settings to reduce pressure across the system.

Modify the inlet pressure settings for fixtures experiencing pressure overload.

Verify floor heights and flow source inputs to ensure accuracy.

Connect the fixture to the correct flow system pipe.

In the fixture’s properties, enable Allow Other Systems to Connect if needed.

• If updating multiple fixtures, use the Select Similar option for bulk changes.

Draw pipes to connect the flow system to the plant.

• Sometimes it looks like its connected, but the pipe stops just short of where it needs to 

In the plant properties, set the appropriate flow systems for inlet and outlet.

If the plant doesn’t require a connection, you can choose to hide this warning.

Go to Settings > Systems to modify the pipe sizing table.

Minimize the connected load on the pipe to match current system settings.

Locate the loop in your pipe layout.

Remove or simplify the loop to eliminate redundancy and ensure a single directional flow.

Examine pipe connections to identify the loop.

Alter the layout to remove the loop and establish a linear path.

Go to Settings > Calculations and select a different flow rate calculation method.

Minimize loading units to ensure they stay within the current calculation method's capacity.

In Settings > Flow Systems, select a new pipe material that supports higher flow.

Adjust the maximum velocity setting to allow higher flow rates.

Lower the flow rate connected to the pipe if possible.

Adjust the pressure at the upstream regulator.

Lower the downstream pressure to balance the system.

Update the method in Settings > Calculations to fit within limits.

Decrease the number of connected units to avoid extrapolation.

Swap the inlet and outlet connections for proper flow direction.

Take out any directed valves on the recirculating system and relocate them to the primary flow system.

Contact 1800 656 771 for site-specific design and configuration advice.

Hide this warning if the RO system sizing is confirmed as correct.

Place pressure reducing valves (PRVs) on the cold water system or on branch dead legs, avoiding the recirculating system.

Insert a balancing valve in each hot water loop/circuit from the Valve dropdown.

Select a lockshield valve from the Valve dropdown and add one to each heating/chilled water loop.

Include a pump to boost system pressure.

Change minimum pipe size and max velocity in Systems if required.

Install additional PRVs in series to gradually reduce pressure.

Reduce pump pressure if possible.

Change the pipe diameter to meet vent size requirements.

Consult Rheem for a product specification update if the hot water demand exceeds system limits.

Follow the pipe from the warning area to connect it to a flow source.

Lower the pipe height or increase the floor height of the level above.

Draw a connecting pipe from the node or appliance to the appropriate system.

Add a flow source to the drainage system.

Install at least two isolation valves on the ring main.

Move plant components from the return pipework to other system branches.

For cold water systems, add isolation valves to interconnecting pipes.

In hot water systems, create orderly branches for loops/circuits.

Connect return pipe to ensure flow reaches both outlet and return.

Install check valves to maintain one-way flow in the return system.

Identify and remove any unintended connections in the preheat system.

Only use one diverter valve in reverse return systems.

Adjust to a suitable configuration from the suggested settings.

Select a model with higher pressure capabilities.

Contact the listed manufacturer for assistance with pump selection.

Verify downstream pipe layout for valid connections.

Ensure the upstream pipe system is properly connected and configured.

Verify capacity specifications with the manufacturer or reduce system capacity.

Reduce pipe diameter to fit within the valve’s maximum size.

Adjust components to avoid blocking pump pressure.

Remove any pressure reducing components in the path of the pump.

Attach cap end to a pipe or outlet.

Relocate fixture upstream of balancing valve.

Move node upstream of balancing valve in the system.

Reverse inlet and outlet connections on the heat emitter.

Check for missing valves or incorrect flow direction in return network.

Ensure pipes are not interconnected in complex layouts.

Use isolation valves to simulate peak scenarios if loops are necessary.

Ensure only one flow source per system to prevent conflicting pressures.

Check the layout for unintended additional flow sources.

Install dampers to manage excessive pressure at the grills.

Ensure the fitting matches a recognized type.

Swap with a standard fitting that can be calculated.

Move fittings further apart to allow for a proper bend radius.

Ensure radiator dimensions and model are correctly entered.

If needed, choose an available model from the catalog.

Confirm the required heat output for the radiator.

Select a model that meets or exceeds required output.

Change to Unrestricted sizing mode in Flow System settings.

Lower the flow rate to match available duct sizes.

Raise the water temperature for increased heat output.

Select an underfloor heating option with a higher capacity

Ensure that the mean water temperature and room temperature are within manufacturer specifications.

Ensure that there is a clear route for the loop from the manifold to the room.

Enter the correct spacing values for underfloor heating loops.

Reduce the water temperature to prevent excessive floor heat.

Ensure manifold specifications meet the loop outlet requirements.

Choose a manifold with sufficient outlets for your design.

Include a volumiser and specify the required volume in properties.

Use larger pipes or add emitters to increase total system volume.

Choose a heat pump model capable of handling the flow rate.

Choose a model with a higher pressure capacity.

Adjust pressure drop per meter in settings.

Install hydraulic separation to manage pressure.

Adjust to a recommended configuration.

If necessary, consult the pump manufacturer for advice.

Select a model capable of meeting the required duty.

Verify the suitability of the selected pump with the manufacturer.

Ensure downstream pipes follow a clear configuration.

Adjust upstream pipes for consistent pressure flow.

Confirm the maximum capacity available for the selected component.

Reduce the system load to stay within capacity.

Adjust pipe diameter to match valve capacity.

Adjust or relocate any component blocking pump flow.

Ensure that no pressure reducing valves obstruct the pump’s flow path.

Attach cap end to a relevant pipe or outlet.

Position the fixture upstream of the balancing valve.

Ensure the node is located upstream of the balancing valve.

Swap inlet and outlet connections to ensure proper flow direction.

Verify return valves are correctly installed and positioned.

Confirm only one flow source is connected in each system.

Install a damper to manage pressure at the grill.

Confirm pump specifications meet system needs.

Select a model capable of meeting the required flow and pressure.

Select a heat pump capable of accommodating the required flow.

Place isolation valves in areas where system branching occurs.

Adjust duct dimensions or choose unrestricted sizing to accommodate flow.

Increase underfloor heating loop coverage to meet demand.

Ensure plant components are correctly connected to designated flow and return pipes.

Verify all relevant pipes and components are connected for complete flow.

Attach the fixture to a relevant flow system by drawing a pipe to it.

If the connection is intentionally omitted, choose to hide the warning.

Ensure the return pipe is properly connected to an outlet or return.

Rotate the valve to match the correct flow direction.

Directed valves are not permitted on recirculating systems; relocate the valve.

Use isolation valves and mark some as 'closed' to simplify calculations for cold water systems.

Ensure that circuits branch off in a uniform order for hot water systems.

Place two isolation valves on the ring main to enable peak scenario calculations.

Specify the required volume in the properties by adding a volumiser.

Adjust the system to meet volume requirements by increasing pipe size or adding emitters.

Connect the cap end to a pipe or inlet/outlet if necessary.

Install a vent to the system to accommodate additional drainage flow.

Adjust pipework to reduce unvented flow.

Install a pressure reducing valve to maintain safe pressure.

Adjust pump settings to reduce inlet pressure.

Ensure insulation meets minimum thickness requirements in system settings.

Attach a vent to the pipe system to support additional WC units.

Modify flow system settings to increase the maximum WC units.

Simplify the loop layout and avoid invalid connections.

Connect fixtures to a different stack to reduce load.

Increase the maximum stack allowance in settings if possible.

Distribute flow across additional valves to handle the load.

Override the valve's maximum flow rate in properties if appropriate.

Insert a balancing valve into each hot water loop/circuit with this warning.

Swap inlet and outlet connections for correct configuration.

Insert a check valve in areas prone to backflow.

Arrange pipes in a single direction within return loops.

Lower pressure in the system by adding pressure reducing valves.

Choose a material rated for higher pressures.

Ensure nodes are not located downstream of pressure reducing valves.

Include a valve to manage excessive pressure at nodes.

Verify flow source and floor level inputs to ensure accuracy.

Ensure the plant's flow and return pipes are correctly aligned.

Attach the inlet and outlet flow system to the plant.

Include a vent in the system to allow for the additional flow rate.

Decrease the number of connected fixtures to bring the flow within limits.

Place a vent or vented pipe closer to the fixture to reduce unvented length.

Reconfigure pipe routing to meet the maximum length requirements.

Place a lockshield valve on each return loop in mechanical (heating/chilled) systems where needed.

Ensure the loop configuration is valid by eliminating unnecessary connections or cross-links.

Choose a heat pump that can handle the increased pressure.

Separate high-pressure and low-pressure systems with hydraulic separation.

Slightly lower the pressure drop per meter to bring it within limits.

Connect a flow source to the system to enable calculations and ensure proper functionality.

Ensure only one diverter valve is used in reverse return systems or non-series-parallel layouts.

Place a damper on the grill to regulate and balance airflow.

Add a valve to reduce the pressure before it reaches the valve.

Confirm the system pressure does not exceed the valve rating.

Set the sizing method to Unrestricted in Flow System settings to allow more flexibility.

Adjust the flow rate to match available duct sizes.

Enter a valid loop spacing for the underfloor heating layout to proceed.

Trace the disconnected pipe to locate and complete the connection to the flow source.

Choose a radiator model that meets or exceeds the required heat output.

Choose a manifold model compatible with the number of loop outlets in the design.

Adjust the design to reduce the flow rate to the plant.

Upgrade to a model that supports the higher flow rate if necessary.