THE PRESSURE REGULATION TYPE HEATING CONTROL SYSTEM

摘要

PURPOSE: A heating control system controlling a pressure difference is provided to reduce heating costs by installing a differential pressure sensor, a valve actuator, and a flow control valve in a feed pipe and a recovering pipe. CONSTITUTION: A heating control system controlling a pressure difference comprises a valve actuator(50). The valve actuator comprises a current detecting unit(55) and a differential pressure detecting unit(54). The current detecting unit detects a current supplied to a motor(40). The differential pressure detecting unit detects a pressure difference between differential pressure sensors(20,21). When a maximum current is detected, the valve actuator controls the motor and a flow control valve.