AIR-CONDITIONER WITH DEFROSTING FUNCTION

Title:

AIR-CONDITIONER WITH DEFROSTING FUNCTION

Document Type and Number:

Japanese Patent JP2005274039

Kind Code:

A

Abstract:

To provide an air-conditioner with a defrosting function having high operating efficiency while maintaining heating performance.

The air-conditioner with the defrosting function comprises an outdoor unit 14 and an exhaust heat recovery unit 24 arranged in parallel, an outdoor unit valve 25 and an exhaust heat recovery unit valve 26 provided on the inlet side of the outdoor unit 14 and on the inlet side of the exhaust heat recovery unit, respectively, and a refrigerant circuit connecting a compressor 13 at its discharge side to the inlet of the outdoor unit 14 via a bypass on-off valve. The on-off valve is a bypass flow control valve 29. A defrosting operation program 431 controls the opening of the exhaust heat recovery unit valve 26 corresponding to the degree of suction overheat in the compressor after receiving a defrosting signal.

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Inventors:

AOSHIMA HIROKI

Application Number:

JP2004089026A

Publication Date:

October 06, 2005

Filing Date:

March 25, 2004

Export Citation:

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Assignee:

AISIN SEIKI

International Classes:

F25B27/02; F25B47/02; (IPC1-7): F25B47/02; F25B27/02

Domestic Patent References:

JPH02140572A	1990-05-30
JPH02161269A	1990-06-21
JPH08110129A	1996-04-30
JPH11230646A	1999-08-27
JPH0712439A	1995-01-17

Attorney, Agent or Firm:

Takashi Tomizawa
Ikuo Yamanaka
Akika Okado

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