抄録
This paper reports some of the problems on downsizing of an ammonia absorption refrigerator and their work-arounds. One of the problems of the downsizing is a solution pump error on starting-up. Focusing solution pump error, authors investigated the cause of the error and conducted experiments on starting-up performance on modifying poor ammonia solution valve characteristic. The experiments of the control system and modification of the control equipment result in restrained the error.
