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JPS57101238A - Electronic thermostat for air conditioner - Google Patents

Electronic thermostat for air conditioner

Info

Publication number
JPS57101238A
JPS57101238A JP55175813A JP17581380A JPS57101238A JP S57101238 A JPS57101238 A JP S57101238A JP 55175813 A JP55175813 A JP 55175813A JP 17581380 A JP17581380 A JP 17581380A JP S57101238 A JPS57101238 A JP S57101238A
Authority
JP
Japan
Prior art keywords
cooling
heating
temperature
air conditioner
over switches
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
JP55175813A
Other languages
Japanese (ja)
Inventor
Hiroshi Watanabe
Takashi Kato
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 JP55175813A priority Critical patent/JPS57101238A/en
Publication of JPS57101238A publication Critical patent/JPS57101238A/en
Pending legal-status Critical Current

Links

Landscapes

  • Air Conditioning Control Device (AREA)

Abstract

PURPOSE: To enable to use one thermostat for both cooling and heating by a method wherein the polarity of the voltage applied to the captioned thermostat used in the heat pump type air conditioner is changed-over through cooling- heating change-over switches.
CONSTITUTION: Under the condition that the cooling-heating change-over switches 4a and 4b are set for heating operation and a variable resistor for temperature control 5 is set to the set temperature, when the temperature of a cold-hot fluid temperature sensing thermistor 2 is below the set temperature, a comparator 10 operates to energize a relay coil 13 and consequently a relay contact 14 is closed, resulting in driving a compressor for heating operation. On the other hand, under the condition that the cooling-heating change-over switches 4a and 4b are set for cooling operation and the variable resistor 5 is set to the set temperature, the cold-hot fluid temperature sensing thermistor 2 is applied to reverse polarity and operated for cooling operation so as to drive the compressor for cooling operation, when necessary.
COPYRIGHT: (C)1982,JPO&Japio
JP55175813A 1980-12-15 1980-12-15 Electronic thermostat for air conditioner Pending JPS57101238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55175813A JPS57101238A (en) 1980-12-15 1980-12-15 Electronic thermostat for air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55175813A JPS57101238A (en) 1980-12-15 1980-12-15 Electronic thermostat for air conditioner

Publications (1)

Publication Number Publication Date
JPS57101238A true JPS57101238A (en) 1982-06-23

Family

ID=16002675

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55175813A Pending JPS57101238A (en) 1980-12-15 1980-12-15 Electronic thermostat for air conditioner

Country Status (1)

Country Link
JP (1) JPS57101238A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59128036U (en) * 1983-02-15 1984-08-29 ミクロン機器株式会社 Electronic thermostat circuit for heating and cooling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59128036U (en) * 1983-02-15 1984-08-29 ミクロン機器株式会社 Electronic thermostat circuit for heating and cooling

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