Refrigeration – With indicator or tester – Condition sensing
Reexamination Certificate
2005-10-26
2010-11-02
Jules, Frantz F (Department: 3744)
Refrigeration
With indicator or tester
Condition sensing
C062S127000, C062S203000, C062S208000, C062S324600, C137S557000, C137S559000
Reexamination Certificate
active
07823397
ABSTRACT:
A method for detecting a clogged state of a pipe of a heat pump type multi-air conditioner includes: detecting a temperature of a pipe of an arbitrary indoor heat exchanger among a plurality of indoor heat exchangers; detecting a pressure of a refrigerant sucked into an arbitrary outdoor unit among a plurality of outdoor units in case of performing an air-conditioning operation, and detecting a pressure of a refrigerant introduced into the arbitrary indoor heat exchanger after being discharged from an arbitrary outdoor unit among the plurality of outdoor units in case of performing a heating operation; and comparing a pressure corresponding to the detected temperature of the pipe and the detected pressure of the refrigerant and determining whether the pipe is clogged based on the comparison result. By detecting a clogged state of a pipe, the heat pump type multi-air conditioner is prevented from being damaged due to a clogged state of the pipe.
REFERENCES:
patent: 5009076 (1991-04-01), Winslow
patent: 5490399 (1996-02-01), Sada
patent: 5941084 (1999-08-01), Sumida et al.
patent: 6041611 (2000-03-01), Palmer
patent: 6631618 (2003-10-01), Renders
patent: 6701725 (2004-03-01), Rossi et al.
patent: 1 102 018 (2001-05-01), None
patent: 1 321 727 (2003-06-01), None
patent: 1 321 727 (2003-06-01), None
patent: 2001-133011 (2001-05-01), None
Chang Se-Dong
Chung Baik-Young
Kim Sung-Hwan
Lee Yoon-Been
Birch & Stewart Kolasch & Birch, LLP
Jules Frantz F
LG Electronics Inc.
Ruby Travis
LandOfFree
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