The Lead-Lag controller is the most efficient way of controlling temperature in a remote location where a both a primary cooling unit and a back-up cooling unit is used.
The Lead-Lag controller controls 2 different units, treating them as 2 different stages, and allows them to cycle On and Off every 24hrs.
This ensures that the desired room temperature is always maintained and also prevents wear of the units.
With a 4°C differential always kept between room temperature and set temperature, the Lead-Lag controller is ideal for environments such as computer rooms, and other rarely visited rooms.