minimum and maximum limits provided

minimum and maximum limits provided with these curves create trends in the curve output that closely resemble the VRF curves. This is not to say that heat pumps operate in a similar manner, just that the performance curves were limited to the data set range used to create the cooling model coefficients. Note that the VRF curves show slightly higher capacity and lower energy input ratio at higher wet-bulb temperatures than shown for the HP. This is mainly due to the limitations employed in the curve itself and does not reflect how the heat pump would operate at these colder temperatures.