Adtek AccuComm Commercial HVAC Load Calculations The program can be installed on multiple computers at no additional cost. AccuComm is designed specifically for Commercial (non-residential) HVAC Load Calculation. There are no limits on the number of zones! Very easy to use program for quick Commercial HVAC Load Calculations. Reports Include: > System Summary Report > System Load Detail Breakdown Reports > System Airflow (CFM) Reports > Room (Zone) Summary Report > Room (Zone) Detail Breakdown Reports