The Different Types of Regulation for Bi-jonction Appliances

DB1 - Both circuits operate completely independently.
The collective circuit is controlled by a centralized system in the building.
The individual circuit is controlled by the appliance's thermostat.

 

DB3 - The collective circuit is activated by the triggering of the individual circuit.
When the individual circuit operates, upon the request of its thermostat, it triggers the operation of the collective circuit.

 

DB4 - The collective circuit is activated by its integrated thermostat or by the operation of the individual circuit.
When the individual circuit operates, upon the request of its thermostat, it triggers the operation of the collective circuit.
When the individual circuit is stopped, the collective circuit operates autonomously with its factory preset integrated electronic thermostat (generally set to 12°C).