If additional rows are required in the calculator, it is acceptable to add the specification of multiple models together in one tool, provided they are the same model and have all the same inputs for columns F to M. The weighting of the systems across the building is done by the System Capacity and Total Refrigerant Charge (columns E and F), so you would multiply each of these two figures by the total number of the system specified. This gives the contribution of the systems to the building’s cooling capacity and charge.
If further rows are still required please submit a query using the webform in BREEAM Projects, attaching a copy of the tool and specify the number of additional rows required.
08/10/21 link to webform added
