The measure in group 4 is demand side measure, it’s consist of the measure below;
Setting demand side temperature higher will reduce the energy consumption too but we should be realize about the appropriation of air condition.
The measure of management was to reduce the system run time by turning on the system later and turning off it more quick. Decreasing air condition load was reducing the leak point in the condition room for deceasing the heat gain into the room. Install VSD at AHU fan to control AHU fan speed for appropriation. The change system measure was to change air condition system from chiller to evaporative cooling