HEAT PUMP STORAGE TYPE WATER HEATER, AND DEVICE AND METHOD OF CALIBRATING FLOW VOLUME FOR HEAT PUMP STORAGE TYPE WATER HEATER

摘要

PROBLEM TO BE SOLVED: To provide a method of calibrating a flow volume of a heat pump storage type water heater free from dispersion of a heating capacity even when an inexpensive flow volume sensor is used.;SOLUTION: In this method for calibrating the flow volume sensor 20 of the heat pump storage type water heater including a heat pump heating unit 2 which is disposed in a pathway communicating with a water side of a refrigerant-water heat exchanger 13, and has a circulation pump 19 for circulating hot water/water in the hot water storage tank 2 to the water side of the refrigerant-water heat exchanger 13, and the flow volume sensor 20 for detecting the circulation flow volume, the circulation pump 19 is driven with a predetermined rotational frequency, the flow volume detected by the flow volume sensor 20 at that time is compared with a reference flow volume determined in advance corresponding to the predetermined rotational frequency, the calibration data is created so that the detected flow volume is agreed with the reference flow volume, and the calibration data is stored in a nonvolatile memory 25 disposed in the heat pump heating unit 2.;COPYRIGHT: (C)2010,JPO&INPIT