Water multi-connected unit control device and water multi-connected unit control system

The utility model relates to a water multi-connected unit control device and a water multi-connected unit control system. The device comprises a logic processing module used for collecting the working states of an outdoor unit and an indoor unit and sending corresponding level signals to a switch control module according to the working states of the outdoor unit and the indoor unit, and the switch control module controls the on-off state of a bypass water valve according to the level signals sent by the logic processing module. And when the level signal indicating that the working states of all the indoor units in the water multi-connected unit are shutdown and the working states of the outdoor units are startup is received, the bypass water valve is controlled to be opened, so that false triggering of switch current protection is avoided when the working states of all the indoor units and the outdoor units are inconsistent, and the safety of the water multi-connected unit is ensured. Compared with the mode t