HEAT PUMP TYPE WATER HEATER

PROBLEM TO BE SOLVED: To provide a heat pump type water heater capable of performing determination of whether or not capacity of the entire device is deteriorating in a short time.SOLUTION: A control device 300 for performing control of the entire heat pump type water heater 10 selects a water tempe...

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Bibliographische Detailangaben
1. Verfasser:	FURUKAWA TADAO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BLASTING FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL HEATING LIGHTING MECHANICAL ENGINEERING RANGES VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a heat pump type water heater capable of performing determination of whether or not capacity of the entire device is deteriorating in a short time.SOLUTION: A control device 300 for performing control of the entire heat pump type water heater 10 selects a water temperature sensor which is mounted at the highest position out of water temperature sensors 110 in which a measured value of water temperature is below a threshold value as a sensor for capacity determination. Then, it performs determination of whether or not the capacity of the heat pump type water heater 10 is deteriorating, in a state where heating of water by a heater 200 is being performed, based on the change speed of the water temperature measured by the sensor for capacity determination.SELECTED DRAWING: Figure 1 【課題】装置全体の能力が低下しているか否かの判定を短時間のうちに行うことのできるヒートポンプ式給湯装置を提供する。【解決手段】ヒートポンプ式給湯装置１０全体の制御を行う制御装置３００は、水温の測定値が所定の閾値を下回っている水温センサ１１０のうち最も高い位置に取り付けられているもの、を能力判定用センサとして選定した後、加熱器２００による水の加熱が行われている状態において、能力判定用センサにより測定される水温の変化速度に基づいて、ヒートポンプ式給湯装置１０の能力が低下しているか否かの判定を行う。【選択図】図１