A suggestion to choose according to the principle of engineering should select COPactual with the largest Volume flow rate at 2.4010 equals 450 L/h but economic principles should select the appropriate COPactual value to energy use.
Feedback should be selected based on engineering COPactual most valuable Volume flow rate equal to 2.4010 to 450 L / h, but the main economic COPactual should select the appropriate energy consumption.
The selection principles of engineering should choose the most valuable COPactual 2.4010 that Volume flow rate was 450 L / h but economic principles should choose value. COPactual with proper energy use.