| 摘要 |
PROBLEM TO BE SOLVED: To provide an absorption type chiller and heater which performs no-water heating prevention control by quickly detecting whether a fall of an absorption liquid surface of a high-temperature regenerator is temporary or a fall in a normal condition during operation or in a boiling state in starting, by continuing the operation of the absorption type chiller and heater if the fall of the liquid level is temporary, and by warning the no-water heating state while stopping the operation of the absorption type chiller and heater in a continuous case.SOLUTION: The absorption type chiller and heater includes a level detector for detecting an absorption liquid surface of the high-temperature regenerator and a temperature detector for detecting exhaust gas temperature of the high-temperature regenerator. When the level detector detects a predetermined lower limit level of the absorption liquid surface, the absorption type chiller and heater operates an absorption liquid pump at a predetermined high frequency for a predetermined period of time, and measures rise of the exhaust gas temperature detected by the temperature detector. When the predetermined time is reached or passed, both or either of sounding an alarm and operation stop of the absorption type chiller and heater is performed if the temperature rise is equal to or higher than a predetermined value while the level detector detects the predetermined lower limit level of the absorption liquid surface. |
