PACOpaQ combines the reliability of PACO-brand centrifugal pumps with the intelligence and efficiency of the Grundfos MLE motor and integrated variable frequency drive. The systems also feature a dedicated HVAC control, which automatically determines the most efficient speed and optimum number of pumps needed to meet desired flow and pressure. Heat exchangers are included in the PACOpaq as well as expansion tanks, hydraulic separators, and tangential air separators �¢?? also available separately. These components work together to provide lower initial cost, longer pump life, reduced maintenance, maximum efficiency and quieter operation for the end user.