The invention discloses a modular energy-saving control device for a heating heat exchange unit. The modular energy-saving control device is mainly composed of an intelligent controller, a
temperature control module, a circulating control module, a monitoring and controlling module, a display and setting module and an alarm module. The intelligent controller is connected with the
temperature control module, the circulating control module, the monitoring and controlling module, the display and setting module and the alarm module, and the
temperature control module is further in wired connection with a temperature control valve, a temperature control
transmitter and an
outdoor temperature transmitter; and the circulating control module is further in wired connection with a
circulating pump, a secondary water returning
pressure sensor, a secondary water outlet
pressure sensor, a water filling pump and an
electromagnetic valve. The modular energy-saving control device has the beneficial effects that the device has the advantages of being flexible and reasonable in adjusting and controlling, intuitive and convenient to operate and control, energy-saving and efficient in running and the like, the
system is complete in configuration, working is safe and reliable, the application is high, and the device has the good popularization value and prospects in application of a heating heat exchange unit.