JPS56124848A - Air conditioner - Google Patents

Air conditioner

Info

Publication number
JPS56124848A
JPS56124848A JP2777480A JP2777480A JPS56124848A JP S56124848 A JPS56124848 A JP S56124848A JP 2777480 A JP2777480 A JP 2777480A JP 2777480 A JP2777480 A JP 2777480A JP S56124848 A JPS56124848 A JP S56124848A
Authority
JP
Japan
Prior art keywords
switch
reference signal
output
indoor temperature
time
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
JP2777480A
Other languages
Japanese (ja)
Inventor
Hiroshi Kasagi
Takamichi Ishii
Hitoshi Iijima
Kazunushi Saegusa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2777480A priority Critical patent/JPS56124848A/en
Publication of JPS56124848A publication Critical patent/JPS56124848A/en
Pending legal-status Critical Current

Links

Landscapes

  • Air Conditioning Control Device (AREA)

Abstract

PURPOSE: To properly maintain the air-conditioning ability of an air conditioner by a method wherein the rate of change of the indoor temperature with time after the stop of running of the compressor is computed to measure the size of the air- conditioning load amount, and the number of poles of the stator winding of the compressor motor is changed according to said result.
CONSTITUTION: In the cooler, the value preset by an indoor temperature setting unit 10 and the value detected by an indoor temperature detector 8 are compared in a comparator 11, and according to said comparison result, a switch 12 is turned ON/ OFF to start/stop a compressor motor 2. In this case, when the switch 12 is turned off, the reference signal to be inputted to the comparator 11 is changed over to an ON reference signal 10a as well as a timer unit 14 is actuated. Then, after a given period of time has passed, an output is generated to turn on a switch 16, and the output of the temperature detector 8 at that time and an OFF reference signal 10b are inputted to an arithmetic device 15. The output thereof and a preset value 17a are compared 17, and according to said comparison result, a switch 13 is changed over to a two-pole terminal 13a or four-pole terminal 13b to control the number of revolutions of the motor 2.
COPYRIGHT: (C)1981,JPO&Japio
JP2777480A 1980-03-05 1980-03-05 Air conditioner Pending JPS56124848A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2777480A JPS56124848A (en) 1980-03-05 1980-03-05 Air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2777480A JPS56124848A (en) 1980-03-05 1980-03-05 Air conditioner

Publications (1)

Publication Number Publication Date
JPS56124848A true JPS56124848A (en) 1981-09-30

Family

ID=12230313

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2777480A Pending JPS56124848A (en) 1980-03-05 1980-03-05 Air conditioner

Country Status (1)

Country Link
JP (1) JPS56124848A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110701727A (en) * 2018-07-09 2020-01-17 开利公司 Method and system for detecting faults in an HVAC system and memory

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110701727A (en) * 2018-07-09 2020-01-17 开利公司 Method and system for detecting faults in an HVAC system and memory

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