Systems and methods for minimizing compressor use in HVAC systems

A method of minimizing compressor use in an HVAC system for an IT space includes configuring an HVAC system to cool an IT space, providing a control system to operate the HVAC system, the control system having software configured to calculate economization mode minimum achievable X-Factor for a predetermined period of time, providing at least one parameter to the control system, the at least one parameter including X-Factor history and period weather forecast(s), setting temperature set points for each forecast interval, and analyzing the temperature set points according to maximum and minimum temperature parameters for the IT space, with intervals with set points violating the maximum temperature parameter being designated as intervals for which the compressor will operate while intervals with set points violating the minimum temperature parameter are assigned the minimum temperature set point.