Method and apparatus of controlling air conditioner

Details Method and apparatus of controlling air conditioner Method and apparatus of controlling air conditioner

1993-08-31

1995-04-25

Tanner, Harry B.

Refrigeration

Processes

Circulating external gas

62180, 62158, F25D 1700

Patent

active

054088372

ABSTRACT:
Outside air temperature detected by an outside air temperature sensor (13) is given to an outside air temperature memory (14), a comparator (15) and a fan volume control section (16), respectively. The fan volume control section (16) drives an outside fan motor (18) at a revolution speed determined by outside air temperature and revolution speed of a compressor. The outside air temperature memory (14) is activated in response to an operation start command to store the outside air temperature detected at the operation start therein. Further, a timer (17) is activated in response to the same operation start command, and a time-up signal (e.g., after 18 min has elapsed) is outputted from the timer to activate the comparator (15). The comparator (15) compares the outside air temperature detected at the operation start with that detected in response to the timer-up signal to check whether air short circuit occurs or not. In case of the air short circuit, the fan volume control section (16) outputs a detection signal of the short circuit to the outside fan motor ( 18), so that the outside fan motor (18) is driven at a speed higher than that determined under the ordinary conditions.

REFERENCES:
patent: 3138941 (1964-06-01), Jensen
patent: 3390538 (1968-07-01), Miller
patent: 4698981 (1987-10-01), Kaneko et al.

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