REFRIGERANT LEAKAGE ALARM FOR FREEZING APPARATUS USING COMBUSTIBLE REFRIGERANT

摘要

PROBLEM TO BE SOLVED: To inform a user of the danger in leakage and the subsequent tackling by indicating the tackling after leakage of a refrigerant on an indoor machine within a specified time, after detection of refrigerant leakage. SOLUTION: An opening valve 14, at heating operation, and an opening and closing valve 15, in cooling operation, are closed respectively to operate a compressor 7 for a specified time, and then the opening and closing valve 14 is closed in heating operation to reserve a refrigerant in an outdoor machine 6. Then, this alarm indicates each tackling method, judging it to be the leakage within the room, in case that this detects the leakage with a refrigerant pressure detection means 23A arranged in an indoor machine 1, and judging it to be the leakage outside the room, in case that this detects the leakage with a refrigerant leakage detection sensor 21B or a refrigerant pressure detection means 23B arranged in an outdoor machine 6. Thus, the user can take quick tackling, and can confine the damage to minimum, and can raise the safety.