D series of diversity water device suitable for geothermal heating system, diversity water device of each circuitare built-in valve regulating the amount of water, can be equipped with electric actuator and heating temperature controller, to achieve independent sub room temperature control. The user to set the temperature according to the need, the heating thermostat will automatically detect the temperature of the room, and the output signal to the actuator, the actuator is closed or opened, you can also install electric ball valve in the diversity water devicemanager, and supporting the use of heating thermostat, the realization of regional or control requirements, to achieve temperature, comfort, energy saving the effect of.