Although 'AIRWIND' and 'CELLWIND' will automatically default to expected 'worst case' conditions for any geographic location it is quite possible that due to the vagaries of a particular design (For example extreme fenestration on an East or West facing wall) peak load conditions might occur at a different time and date to the default settings. Clicking on the 'Peak Hour/Month' button should reveal the absolute 'worst case' conditions as far as high A/C loads are concerned. Missing this function is not however as critical as it might sound as peak conditions are rare and of short duration. Designing to the program's 'default' conditions without checking for worst case conditions is unlikely to lead to serious 'under-engineering' and thus client dis-satisfaction.
