CN106247548A - A kind of control method of fixed frequency air conditioner unit - Google Patents
A kind of control method of fixed frequency air conditioner unit Download PDFInfo
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- CN106247548A CN106247548A CN201610656890.0A CN201610656890A CN106247548A CN 106247548 A CN106247548 A CN 106247548A CN 201610656890 A CN201610656890 A CN 201610656890A CN 106247548 A CN106247548 A CN 106247548A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses the control method of a kind of fixed frequency air conditioner unit, the method includes step in detail below: input power access system, startup AutoPlay function, automatic runtime system foundation condition switched over air conditioning unit duty and control, system intelligent diagnostics shows and the running of generator protection system with code.The present invention is by being adjusted working state of system according to ambient temperature condition, it is achieved that the intellectuality of system and Automated condtrol；By system is carried out intelligent diagnostics and by display failure code by the way of, be conducive to improving user and inquire about fault and the efficiency fixed a breakdown；After fault occurs, automatically adjusted duty by system and carry out the self-protection of system, enhance stability and the reliability of system work, effectively prevent the further expansion of fault simultaneously.
Description
Technical field
The invention belongs to technical field of electric control, particularly relate to the control method of a kind of fixed frequency air conditioner unit.
Background technology
Along with socioeconomic fast development and the raising day by day of living standards of the people, air-conditioning has entered into huge numbers of families, pin
Amount also grows with each passing day.And air-conditioning is while bringing comfortable temperature environment to resident, also supply and environmental pollution to electric power are asked
Topic brings baptism.Energy-saving and environmental protection become current air-conditioning fashion theme.Although Ge great air-conditioning manufacturer tries hard to recommend frequency conversion at present
Air-conditioning, illustrates its energy-saving effect significantly, but the use of air-conditioning still has the great energy saving space.The energy consumption of air-conditioning is by people
Impact for service factor is relatively big, and such as the living habit of individual is different, the height that temperature is arranged, the habitual unlatching of air-conditioning,
Under long-term unmanned state, sustainable operation etc., all can greatly affect the energy consumption of air-conditioning.Especially in some enterprises and institutions,
The energy waste situation of air-conditioning is the most notable.
Summary of the invention
It is an object of the invention to provide the control method of a kind of fixed frequency air conditioner unit, control air conditioner by the method
Group, improves automatic control level, solves existing problem.
For solving above-mentioned technical problem, the present invention is achieved by the following technical solutions:
The control method of the present invention a kind of fixed frequency air conditioner unit, the method includes step in detail below:
Step one, by 220V/400Hz input power access system；
Step 2, starts AutoPlay function；
Step 3, when automatically running, air conditioning unit duty is switched over according to following condition and controls by system,
When room temperature-design temperature >=+6 DEG C, unit duty is high wind refrigeration；When+6 DEG C > room temperature-design temperature >=+5 DEG C time,
Unit duty is constant；When+5 DEG C > room temperature-design temperature >=+4 DEG C time, unit duty be apoplexy refrigeration；When+4 DEG C >
During room temperature-design temperature >=+3 DEG C, unit duty is constant；When+3 DEG C > room temperature-design temperature >=+2 DEG C time, unit work
State is low wind refrigeration；When+2 DEG C > room temperature-design temperature >=+1 DEG C time, unit duty is constant；When+1 DEG C > room temperature-setting
During temperature >=+0 DEG C, unit duty is low wind；When 0 DEG C > room temperature-design temperature >=-1 DEG C time, unit duty is not
Become；When-1 DEG C > room temperature-design temperature >=-2 DEG C time, unit duty is that apoplexy one grade heats；When-2 DEG C > room temperature-setting temperature
Degree >=-3 DEG C time, unit duty is constant；When-3 DEG C > room temperature-design temperature >=-4 DEG C time, unit duty is low wind one
Shelves heat；When-4 DEG C > room temperature-design temperature >=-5 DEG C time, unit duty is constant；When-5 DEG C > room temperature-design temperature >=-6
DEG C time, unit duty is that low wind two grades heats；When-6 DEG C > room temperature-design temperature >=-7 DEG C time, unit duty is not
Become；When-7 DEG C > room temperature-design temperature >=-8 DEG C time, unit duty is that low wind third gear heats；When room temperature≤+ 15 DEG C, machine
Group stops refrigeration；When room temperature >=+30 DEG C, unit duty is high wind refrigeration；When room temperature >=+26 DEG C, unit stops system
Heat；When room temperature ＜+8 DEG C, unit duty is that low wind third gear heats；When entering hardware and forcing heat, cpu reset, unit
Duty is that high wind two grades heats；
Dehumidification mode is that state operational mode is determined in timing: unit first runs 10 minutes with low wind refrigerating state, is then shut off
Refrigeration only continues to run with 6 minutes in low wind mode, so moves in circles；When room temperature is less than 15 DEG C or is more than or equal to 25 DEG C, remove
Wet function stop is run and is transferred operation automatically to, makes systematic function more intelligent and hommization；
Step 4, system intelligent diagnostics and code show
Room temperature detection short circuit sensor, temperature indicator shows SHO, open sensor temperature indicator shows OPE；
Supply voltage detection uses equivalent former limit isolation detection；When supply voltage is more than 250V, failure code display display PH, electricity
When source voltage is less than 186V, failure code display shows PL；When blower fan causes protection to switch off because of overload, unit stops
Only work, failure code display shows F1, needs to turn back on get final product work after recovery；When controlling box and driving leading between plate
When obstacle occur in news, failure code display shows CE；When the pressure-head switch of compressor disconnects, unit stops system
Cold, failure code display shows E1, until freezing again when recovering normal；When overheated heater protection switches off, machine
Group stopping heats, and failure code display shows E2, until heating when recovering normal again；When coil temperature sensor short circuit,
When opening a way or do not connect, failure code display shows E0；When coil temperature sensor normally works, unit provides coil pipe mistake
Cold defencive function: when coil temperature is less than-7 DEG C, stopping refrigeration, unit duty changes low wind, failure code display into
Upper display EL, during until coil temperature is more than or equal to+5 DEG C, recovers normal；
Step 5, the running of generator protection system
When air conditioning unit by when forcing Warm status shutdown, unit is first automatically into low wind duty operation 1 minute, so
Rear shutdown；The compressor the shortest available machine time every time, the shortest unused time was not less than 3 minutes not less than 15 seconds；Work as compressor
Downtime, now power supply electrifying, compressor worked immediately more than 3 minutes；
When temperature sensor damages, if unit was operated in automatic mode at that time, then high wind refrigeration mode will be automatically changed to；
If unit was operated in manual heating mode at that time, change one grade of heating mode of high wind into；If unit was operated in the mould that manually freezes at that time
Formula then changes high wind refrigeration mode into；If unit was operated in dehumidification mode at that time, constant；When temperature sensor recovers normal, if
Unit was operated in dehumidification mode at that time, then state is constant；If in other pattern, then change fully automatic mode into；
When temperature sensor and coil temperature sensor all damage, dehumidification mode is properly functioning；Refrigeration mode is continuous
Run；Heating mode is that state operation is determined in timing, and the lowest wind one grade heat is run 1 minute；The highest wind two grades heat is run 30 minutes,
Turn off and heat low wind operation 5 minutes, so move in circles；
Flash within power supply occurs 1 second, unit can recover former duty and continue to run with；
In unit course of normal operation, if there is communication obstacle, former for maintenance duty is worked on by unit；
When ambient temperature or coil temperature rate of change are > 1 DEG C/sec time, the duty of unit does not changes, and treats above-mentioned
State switching is carried out again after temperature stabilization.
The method have the advantages that
The present invention is by being adjusted working state of system according to ambient temperature condition, it is achieved that the intellectuality of system and
Automated condtrol；By system is carried out intelligent diagnostics and by display failure code by the way of, be conducive to improve user inquiry
Fault and the efficiency fixed a breakdown；After fault occurs, automatically adjusted duty by system and carry out the self-protection of system,
Enhance stability and the reliability of system work, effectively prevent the further expansion of fault simultaneously.
Certainly, the arbitrary product implementing the present invention it is not absolutely required to reach all the above advantage simultaneously.
Detailed description of the invention
Below in conjunction with the embodiment of the present invention, the technical scheme in the present invention is clearly and completely described, it is clear that
Described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the enforcement in the present invention
Example, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into
The scope of protection of the invention.
The present invention is the control method of a kind of fixed frequency air conditioner unit, and the method includes step in detail below:
Step one, by 220V/400Hz input power access system, the change of input power phase sequence is not just interfering with power supply
Often work；
Step 2, starts AutoPlay function；
Step 3, when automatically running, air conditioning unit duty is switched over according to following condition and controls by system,
When room temperature-design temperature >=+6 DEG C, unit duty is high wind refrigeration；When+6 DEG C > room temperature-design temperature >=+5 DEG C time,
Unit duty is constant；When+5 DEG C > room temperature-design temperature >=+4 DEG C time, unit duty be apoplexy refrigeration；When+4 DEG C >
During room temperature-design temperature >=+3 DEG C, unit duty is constant；When+3 DEG C > room temperature-design temperature >=+2 DEG C time, unit work
State is low wind refrigeration；When+2 DEG C > room temperature-design temperature >=+1 DEG C time, unit duty is constant；When+1 DEG C > room temperature-setting
During temperature >=+0 DEG C, unit duty is low wind；When 0 DEG C > room temperature-design temperature >=-1 DEG C time, unit duty is not
Become；When-1 DEG C > room temperature-design temperature >=-2 DEG C time, unit duty is that apoplexy one grade heats；When-2 DEG C > room temperature-setting temperature
Degree >=-3 DEG C time, unit duty is constant；When-3 DEG C > room temperature-design temperature >=-4 DEG C time, unit duty is low wind one
Shelves heat；When-4 DEG C > room temperature-design temperature >=-5 DEG C time, unit duty is constant；When-5 DEG C > room temperature-design temperature >=-6
DEG C time, unit duty is that low wind two grades heats；When-6 DEG C > room temperature-design temperature >=-7 DEG C time, unit duty is not
Become；When-7 DEG C > room temperature-design temperature >=-8 DEG C time, unit duty is that low wind third gear heats；When room temperature≤+ 15 DEG C, machine
Group stops refrigeration；When room temperature >=+30 DEG C, unit duty is high wind refrigeration；When room temperature >=+26 DEG C, unit stops system
Heat；When room temperature ＜+8 DEG C, unit duty is that low wind third gear heats；When entering hardware and forcing heat, cpu reset, unit
Duty is that high wind two grades heats；
Dehumidification mode is that state operational mode is determined in timing: unit first runs 10 minutes with low wind refrigerating state, is then shut off
Refrigeration only continues to run with 6 minutes in low wind mode, so moves in circles；When room temperature is less than 15 DEG C or is more than or equal to 25 DEG C, remove
Wet function stop is run and is transferred operation automatically to, makes systematic function more intelligent and hommization；
Step 4, system intelligent diagnostics and code show
Room temperature detection short circuit sensor, temperature indicator shows SHO, open sensor temperature indicator shows OPE；
Supply voltage detection uses equivalent former limit isolation detection, can improve unit Detection accuracy under each duty.Work as electricity
When source voltage is more than 250V, failure code display display PH, when supply voltage is less than 186V, failure code display shows
PL；When blower fan causes protection to switch off because of overload, unit quits work, and failure code display shows F1, after recovery
Need to turn back on and could work；When controlling box and driving the communication between plate that obstacle occurs, failure code display shows CE；
When the pressure-head switch of compressor disconnects, unit stops refrigeration, failure code display shows E1, until recovering normal
Time freeze again；When overheated heater protection switches off, unit stops heating, failure code display shows E2, until
Heat again when recovering normal；When coil temperature sensor short circuit, open circuit or when not connecing, failure code display shows E0；
When coil temperature sensor normally works, unit can provide coil pipe supercool defencive function: when coil temperature less than-
When 7 DEG C, stopping refrigeration, unit duty changes low wind into, failure code display shows EL, until coil temperature is more than
In+5 DEG C time, recover normal；
Step 5, the running of generator protection system
When air conditioning unit by when forcing Warm status shutdown, unit is first automatically into low wind duty operation 1 minute, so
Rear shutdown, is sufficiently radiated out with after-heat in ensureing machine；The compressor every time the shortest available machine time not less than 15 seconds, every time
The shortest unused time is not less than 3 minutes, with the compressor that adequately protects；More than 3 minutes between when the compressor is shut down, now power supply
Powering on, compressor allows to work immediately；
When temperature sensor damages, if unit was operated in automatic mode at that time, then high wind refrigeration mode will be automatically changed to；
If unit was operated in manual heating mode at that time, change one grade of heating mode of high wind into；If unit was operated in the mould that manually freezes at that time
Formula then changes high wind refrigeration mode into；If unit was operated in dehumidification mode at that time, constant；When temperature sensor recovers normal, if
Unit was operated in dehumidification mode at that time, then state is constant；If in other pattern, then change fully automatic mode into；
When temperature sensor and coil temperature sensor all damage, dehumidification mode is properly functioning；Refrigeration mode is continuous
Run；Heating mode is that state operation is determined in timing, and the lowest wind one grade heat is run 1 minute；The highest wind two grades heat is run 30 minutes,
Turn off and heat low wind operation 5 minutes, so move in circles；
Flash within power supply occurs 1 second, unit can recover former duty and continue to run with；
In unit course of normal operation, if there is communication obstacle, former for maintenance duty is worked on by unit；
When ambient temperature or coil temperature rate of change are > 1 DEG C/sec time, the duty of unit does not changes, to improve
Unit opposing machinery and the ability of electrical noise, protection blower fan, compressor, heater and relay rushing from transient process
Hit, after said temperature is stable, carries out state switching again.
For improving system rejection to disturbance ability, control algolithm uses fuzzy algorithmic approach；Wherein the fuzzy interval of time is 15 seconds, temperature
The fuzzy interval of degree is 1 DEG C, and voltage fuzzy interval is 10V.
In the description of this specification, the description of reference term " embodiment ", " example ", " concrete example " etc. means
Specific features, structure, material or feature in conjunction with this embodiment or example description is contained at least one enforcement of the present invention
In example or example.In this manual, the schematic representation to above-mentioned term is not necessarily referring to identical embodiment or example.
And, the specific features of description, structure, material or feature can be to close in any one or more embodiments or example
Suitable mode combines.
It is last it should be noted that present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.Excellent
Select embodiment not have all of details of detailed descriptionthe, be also not intended to the detailed description of the invention that this invention is only described.Obviously, root
According to the content of this specification, can make many modifications and variations.These embodiments are chosen and specifically described to this specification, be in order to
Preferably explain the principle of the present invention and actual application, so that skilled artisan can be best understood by and utilize
The present invention.The present invention is only limited by claims and four corner thereof and equivalent.
Claims (1)
1. the control method of a fixed frequency air conditioner unit, it is characterised in that: the method includes step in detail below:
Step one, by 220V/400Hz input power access system；
Step 2, starts AutoPlay function；
Step 3, when automatically running, air conditioning unit duty is switched over according to following condition and controls by system, works as room
During temperature-design temperature >=+6 DEG C, unit duty is high wind refrigeration；When+6 DEG C > room temperature-design temperature >=+5 DEG C time, unit
Duty is constant；When+5 DEG C > room temperature-design temperature >=+4 DEG C time, unit duty be apoplexy refrigeration；When+4 DEG C > room temperature-
During design temperature >=+3 DEG C, unit duty is constant；When+3 DEG C > room temperature-design temperature >=+2 DEG C time, unit duty is
Low wind freezes；When+2 DEG C > room temperature-design temperature >=+1 DEG C time, unit duty is constant；When+1 DEG C > room temperature-design temperature >=
When+0 DEG C, unit duty is low wind；When 0 DEG C > room temperature-design temperature >=-1 DEG C time, unit duty is constant；When-1
DEG C > room temperature-design temperature >=-2 DEG C time, unit duty is that apoplexy one grade heats；When-2 DEG C > room temperature-design temperature >=-3
DEG C time, unit duty is constant；When-3 DEG C > room temperature-design temperature >=-4 DEG C time, unit duty is low wind one grade system
Heat；When-4 DEG C > room temperature-design temperature >=-5 DEG C time, unit duty is constant；When-5 DEG C > room temperature-design temperature >=-6 DEG C
Time, unit duty is that low wind two grades heats；When-6 DEG C > room temperature-design temperature >=-7 DEG C time, unit duty is constant；
When-7 DEG C > room temperature-design temperature >=-8 DEG C time, unit duty is that low wind third gear heats；When room temperature≤+ 15 DEG C, unit
Stop refrigeration；When room temperature >=+30 DEG C, unit duty is high wind refrigeration；When room temperature >=+26 DEG C, unit stops heating；
When room temperature ＜+8 DEG C, unit duty is that low wind third gear heats；When entering hardware and forcing heat, cpu reset, unit works
State is that high wind two grades heats；
Dehumidification mode is that state operational mode is determined in timing: unit first runs 10 minutes with low wind refrigerating state, is then shut off refrigeration
Only continue to run with 6 minutes in low wind mode, so move in circles；When room temperature is less than 15 DEG C or is more than or equal to 25 DEG C, dehumidify merit
Energy is out of service and transfers operation automatically to, makes systematic function more intelligent and hommization；
Step 4, system intelligent diagnostics and code show
Room temperature detection short circuit sensor, temperature indicator shows SHO, open sensor temperature indicator shows OPE；Power supply
Voltage detecting uses equivalent former limit isolation detection；When supply voltage is more than 250V, failure code display display PH, power supply electricity
Force down when 186V, failure code display shows PL；When blower fan causes protection to switch off because of overload, unit stops work
Make, failure code display shows F1, need after recovery to turn back on and get final product work；When controlling box and driving the communication between plate to go out
During existing obstacle, failure code display shows CE；When the pressure-head switch of compressor disconnects, unit stops refrigeration, therefore
E1 is shown, until freezing when recovering normal again on barrier code display；When overheated heater protection switches off, unit stops
Heat, failure code display shows E2, until heating again when recovering normal；When coil temperature sensor short circuit, open circuit or
When not connecing, failure code display shows E0；When coil temperature sensor normally works, unit provides the supercool protection of coil pipe
Function: when coil temperature is less than-7 DEG C, stopping refrigeration, unit duty changes low wind into, and failure code display shows
EL, during until coil temperature is more than or equal to+5 DEG C, recovers normal；
Step 5, the running of generator protection system
When air conditioning unit by when forcing Warm status shutdown, first unit runs 1 minute automatically into low wind duty, then closes
Machine；The compressor the shortest available machine time every time, the shortest unused time was not less than 3 minutes not less than 15 seconds；Work as compressor shutdown
Time, now power supply electrifying, compressor worked immediately more than 3 minutes；
When temperature sensor damages, if unit was operated in automatic mode at that time, then high wind refrigeration mode will be automatically changed to；If machine
Group was operated in manual heating mode at that time and then changed one grade of heating mode of high wind into；If unit was operated in manual refrigeration mode at that time,
Change high wind refrigeration mode into；If unit was operated in dehumidification mode at that time, constant；When temperature sensor recovers normal, if unit
Be operated in dehumidification mode at that time, then state is constant；If in other pattern, then change fully automatic mode into；
When temperature sensor and coil temperature sensor all damage, dehumidification mode is properly functioning；Refrigeration mode is to run continuously；
Heating mode is that state operation is determined in timing, and the lowest wind one grade heat is run 1 minute；The highest wind two grades heat is run 30 minutes, then closes
Close and heat low wind operation 5 minutes, so move in circles；
Flash within power supply occurs 1 second, unit can recover former duty and continue to run with；
In unit course of normal operation, if there is communication obstacle, former for maintenance duty is worked on by unit；
When ambient temperature or coil temperature rate of change are > 1 DEG C/sec time, the duty of unit does not changes, and treats said temperature
State switching is carried out again after Wen Ding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610656890.0A CN106247548A (en) | 2016-08-11 | 2016-08-11 | A kind of control method of fixed frequency air conditioner unit |
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| CN201610656890.0A CN106247548A (en) | 2016-08-11 | 2016-08-11 | A kind of control method of fixed frequency air conditioner unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109144142A (en) * | 2018-07-20 | 2019-01-04 | 淄博智科电气科技有限公司 | rail temperature control method and system |
| CN111189104A (en) * | 2020-01-08 | 2020-05-22 | 海信（广东）空调有限公司 | Air conditioner and high-temperature protection control method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59221548A (en) * | 1983-05-30 | 1984-12-13 | Sharp Corp | Indicator of air conditioner |
| KR20000033610A (en) * | 1998-11-25 | 2000-06-15 | 전주범 | Method of removing wet compression of air conditioner |
| CN101737901A (en) * | 2009-12-16 | 2010-06-16 | 深圳市艾苏威尔科技发展有限公司 | Method and system for controlling operation of constant-frequency air conditioner for base station |
| CN105650829A (en) * | 2016-03-14 | 2016-06-08 | 珠海格力电器股份有限公司 | Control method and device of fixed-frequency air conditioner |
-
2016
- 2016-08-11 CN CN201610656890.0A patent/CN106247548A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59221548A (en) * | 1983-05-30 | 1984-12-13 | Sharp Corp | Indicator of air conditioner |
| KR20000033610A (en) * | 1998-11-25 | 2000-06-15 | 전주범 | Method of removing wet compression of air conditioner |
| CN101737901A (en) * | 2009-12-16 | 2010-06-16 | 深圳市艾苏威尔科技发展有限公司 | Method and system for controlling operation of constant-frequency air conditioner for base station |
| CN105650829A (en) * | 2016-03-14 | 2016-06-08 | 珠海格力电器股份有限公司 | Control method and device of fixed-frequency air conditioner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109144142A (en) * | 2018-07-20 | 2019-01-04 | 淄博智科电气科技有限公司 | rail temperature control method and system |
| CN111189104A (en) * | 2020-01-08 | 2020-05-22 | 海信（广东）空调有限公司 | Air conditioner and high-temperature protection control method thereof |
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Application publication date: 20161221 |
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