Hot spring warm detection control unit null of hot water supply

摘要

PURPOSE: To enhance a detecting accuracy of an output hot water temperature as required with a simple structure without enhancing a processing capacity of a microcomputer and to effectively control to operate a hot water supplying apparatus in response to detection of the temperature. ;CONSTITUTION: The output hot water temperature detecting controller for a hot water supplying apparatus comprises a temperature detector 16 for outputting a signal having a level responsive to an output hot water temperature of the apparatus, a differential amplifier 18 for amplifying a level difference of a level of an output signal of the detector 16 and a reference level set by a reference level setter 21 to output it, and a microcomputer 17 for inputting digital data A/D-converted from output signals of the detector 16 and the amplifier 18 as output hot water temperature data. The microcomputer 17 selectively switches either the data obtained from the detector 16 or the amplifier 18 as output hot water temperature data for controlling an operation of the apparatus in response to the output hot water temperature grasped from the output level of the detector 16 for use.;COPYRIGHT: (C)1995,JPO