Description
The First Company CB301 Control Board TTW-HP is an electronic control module that manages the operational sequence of through-the-wall heat pump units by coordinating compressor, fan, and mode-change procedures. It operates by processing input signals from thermostats and internal sensors, then sending controlled outputs to ensure correct timing for heating and cooling cycles along with built-in safety logic. In HVAC systems, it is used in heat pump assemblies to maintain stable system coordination and reliable temperature control. It is connected within the unit’s control compartment and supports consistent performance, efficient operation, and dependable system regulation.









