Air conditioning apparatus with dehumidifying operation function

Details Air conditioning apparatus with dehumidifying operation function Air conditioning apparatus with dehumidifying operation function

1992-07-08

1993-08-03

Tanner, Harry B.

Refrigeration

Automatic control

Selective heating or cooling

62173, 621766, 62181, 62229, 165 29, 236 44C, F25B 1300

Patent

active

052318451

ABSTRACT:
An electronic expansion valve is provided between first and second indoor heat exchangers. At the time of cooling operation, the electronic expansion valve is fully opened with the result that the first and second indoor heat exchangers are communicated with each other. At the time of dehumidifying operation, the opening of the electronic expansion valve is decreased to apply the effect of pressure reduction between the indoor heat exchangers, so that the first indoor heat exchanger functions as a reheater and the second indoor heat exchanger functions as an evaporator. The air in the room is cooled and dehumidified by the second indoor heat exchanger and then discharged into the room after being reheated by the first indoor heat exchanger. At the time of the dehumidifying operation, controlling the speed of the outdoor fan permits the temperature of the air discharged into the room to be varied.

REFERENCES:
patent: 3779031 (1973-12-01), Akiyama et al.
patent: 4448597 (1984-05-01), Kuwabara et al.
patent: 4457137 (1984-07-01), Kohzuma
patent: 4482008 (1984-11-01), Nomaguchi et al.
patent: 4905894 (1990-03-01), Noguchi
patent: 4938032 (1990-07-01), Mudford
patent: 4984433 (1991-01-01), Worthington
patent: 5044425 (1991-09-01), Tatsumi et al.

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