The energy calculation is done taking in account the operating hours, cooling capacity and SEPR value.
If you don't have the SEPR value for the existing chiller, the tool will automatically calculate it based on the unit and compressor type.
All the calculations will consider the efficiency loss, you can estimate it taking in account the operating years and maintenance history of the unit.
Using the energy cost, the operating cost will be calculated for the different systems.
You will be able to analyze the energy and economic savings between the systems.
To calculate the economic return,the tool will use the Investment and Maintenance Costs indicated by the user and will compare them with the alternative systems.
For the maintenance cost, it's important to indicate the average real cost (including repairs and spareparts needed for the exisiting chiller).
The investment and maintenance cost for the alternative systems are shown just for comparative purposes with no contractual value.
You can check the video to know more.