JPS6449836A - Air conditioner - Google Patents

Air conditioner

Info

Publication number
JPS6449836A
JPS6449836A JP62204002A JP20400287A JPS6449836A JP S6449836 A JPS6449836 A JP S6449836A JP 62204002 A JP62204002 A JP 62204002A JP 20400287 A JP20400287 A JP 20400287A JP S6449836 A JPS6449836 A JP S6449836A
Authority
JP
Japan
Prior art keywords
outdoor
temp
indoor
cut
signal transmitted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62204002A
Other languages
Japanese (ja)
Inventor
Yuji Kawaguchi
Kyoji Yamane
Kiyoshi Nagasawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62204002A priority Critical patent/JPS6449836A/en
Publication of JPS6449836A publication Critical patent/JPS6449836A/en
Pending legal-status Critical Current

Links

Landscapes

  • Air Conditioning Control Device (AREA)

Abstract

PURPOSE:To protect outdoor electric parts even if the temp. in an outdoor electric box rises up abnormally by a method wherein an indoor power relay controlling voltage supplied to the parts is so controlled as to be cut off when an abnormal temp. rise at the outdoor side is detected. CONSTITUTION:A temp. fuse 13 is placed at an outdoor interface part. When the temp. in an outdoor electric box rises up abnormally and the fuse 13 is cut off, an I/F signal transmitted from the outdoor side to the indoor side continues to keep LOW condition. An indoor control circuit 3 judges that the I/F signal transmitted from the outdoor side to the indoor side keeps LOW condition for a second and, at that time, a power relay 4 is OFF and an operating display is turned on and off at a pitch of constant time. At the stop time of an outdoor apparatus caused by overcurrent, etc., the LOW condition of the I/F signal transmitted from the outdoor side keeps only for 230mSec and this case therefore does not belong to this mode and the power relay is cut off after 3 minutes and can be ON again on a later main operating ON signal.
JP62204002A 1987-08-19 1987-08-19 Air conditioner Pending JPS6449836A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62204002A JPS6449836A (en) 1987-08-19 1987-08-19 Air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62204002A JPS6449836A (en) 1987-08-19 1987-08-19 Air conditioner

Publications (1)

Publication Number Publication Date
JPS6449836A true JPS6449836A (en) 1989-02-27

Family

ID=16483148

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62204002A Pending JPS6449836A (en) 1987-08-19 1987-08-19 Air conditioner

Country Status (1)

Country Link
JP (1) JPS6449836A (en)

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