CN106091246B - Air conditioner remote control operation troubles judgment method - Google Patents
Air conditioner remote control operation troubles judgment method Download PDFInfo
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- CN106091246B CN106091246B CN201610413137.9A CN201610413137A CN106091246B CN 106091246 B CN106091246 B CN 106091246B CN 201610413137 A CN201610413137 A CN 201610413137A CN 106091246 B CN106091246 B CN 106091246B
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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
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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
- F24F11/00—Control or safety arrangements
-
- 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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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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
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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
- 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
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/39—Monitoring filter performance
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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
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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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
- 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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- 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
- F24F2110/12—Temperature of the outside air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Atmospheric Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to a kind of air conditioner remote control operation troubles judgment method, feature is that breakdown judge is：Pass through experiment, when air conditioner refrigerant standard charging amount and standard charging amount 95%, in different indoor temperatures, different outdoor environment temperatures and indoor unit wind turbine under high and low two grades of air quantity, when air conditioner refrigeration, heating operation, obtain first and second indoor refrigerant temperature, data of room air side air-out temperature, first and second outdoor refrigerant temperature and outdoor air side air-out temperature, often the air quantity of indoor unit wind turbine is transferred to high air quantity state by operation a period of time, control system automatically；The data of acquisition are compared with built-in experimental data base and tentatively judge by control system, the failure that will likely occur is in time by wireless network transmissions to maintenance personal, maintenance personal changes operational mode according to remote data control is uploaded, new operation data is obtained, secondary judgement is carried out to refrigeration air conditioner refrigeration and heating operation.Its advantage is：Determination air conditioner fault earlier, better meet user's requirement and realize air conditioner energy saving in running etc..
Description
Technical field
The present invention relates to a kind of air conditioner remote control operation troubles judgment methods.
Background technology
The popularity rate of China resident and public place air conditioner is very high, also more next with the failure of this air conditioner brought
It is more.Although general air conditioner, which is designed with conventional fault detection and is shown by failure code, informs user, most
User does not know about the failure cause representated by failure code, and failure cause cannot exclude in time, is brought to user's use all
More problems.In view of the above-mentioned problems, some air conditioner manufacturing enterprises develop the remotely controlling air conditioner based on Internet technology, lead to
Internet technology is crossed, air conditioner fault can be timely feedbacked to user and maintenance personal, and under the guidance of maintenance personal, user can be with
It settles a dispute by the parties concerned themselves simple fault, improves maintenance efficiency.But presently, there are the problem of be that air conditioner producer is built-in in air conditioner
The accuracy that fault diagnosis system judges is not high；In addition, since air conditioner fault is mostly resultant fault, the accuracy of judgement is not
It is high.Such as by taking the judgement of air conditioner refrigerant leakage failure as an example, it can generally be reached with a few minutes indoor unit coil temperature after booting
Specified value is as basis for estimation, it is contemplated that air conditioner operating parameter and indoor temperature residing for air conditioner and outdoor environment temperature etc. are all
It is multifactor related, it is judged by accident to reduce, the phenomenon that 20-30% is presented usually is leaked as breakdown judge standard, in this way using refrigerant
Air conditioner refrigeration, heating performance have declined very much, and air conditioner energy consumption can increase by 30% or more.
Invention content
A kind of air conditioner remote control operation troubles judgement is provided the purpose of the present invention is overcome the deficiencies in the prior art
Method, can be to refrigerant leaks, outdoor unit heat exchanger is dirty, outdoor unit wind turbine capacitance fade, indoor machine filter screen are dirty and indoor unit
Five kinds of failures of wind turbine capacitance fade are judged that user and maintenance personal understand air conditioner operation ginseng by Internet technology at any time
Number, maintenance personal can carry out remote control by Internet technology to air conditioner, by changing conditioners running conditions, to failure
Secondary judgement is carried out, accurately finds failure early.
In order to achieve the above object, the invention is realized in this way, it is that a kind of air conditioner remote control operation troubles is sentenced
Disconnected method, it is characterised in that air conditioner include compressor, outdoor unit wind turbine, outdoor heat exchanger, throttling set, indoor heat exchanger,
Cabin filters, indoor unit wind turbine, control system, indoor heat exchanger inlet temperature sensor, indoor heat exchanger outlet temperature pass
Sensor, indoor return air temperature sensor namely room temperature sensor, indoor leaving air temp sensor, outdoor unit heat exchanger entrance
Temperature sensor, outdoor unit heat exchanger outlet temperature sensor, outdoor inlet air temperature sensor namely environment temperature sensor, room
Outer leaving air temp sensor and for freeze with heating operation conversion four-way valve；The indoor heat exchanger inlet temperature sensor
First indoor refrigerant temperature T1 of the indoor heat exchanger entrance of detection, the indoor heat exchange of indoor heat exchanger outlet temperature sensor detection
The second Room inner refrigerant temperature T2 of device outlet, indoor return air temperature sensor namely the indoor heat exchange of room temperature sensor detection
The air side inlet air temperature of device, that is, indoor temperature T3, the Interior Space gas side of indoor leaving air temp sensor detection indoor heat exchanger goes out
Air temperature T4, outdoor unit heat exchanger inlet temperature sensor detect the first outdoor refrigerant temperature T5 of outdoor heat exchanger entrance,
Outdoor unit heat exchanger outlet temperature sensor detects refrigerant temperature T6 outside the second Room of outdoor heat exchanger outlet, outdoor into wind-warm syndrome
It spends sensor namely environment temperature sensor detection outdoor environment temperature T7, outdoor leaving air temp sensor detects outdoor heat exchanger
Outdoor air side air-out temperature T8, the entrance and outlet be for refrigeration mode；Control system operation troubles judges
It is as follows：
（One）By experiment, when air conditioner refrigerant standard charging amount, in different indoor temperature T3, different outdoor environment temperature
T7 and indoor unit wind turbine are spent under high and low two grades of air quantity, when air conditioner refrigeration, heating operation, obtain the first indoor refrigerant
Temperature T1, second Room inner refrigerant temperature T2, room air side air-out temperature T4, the first outdoor refrigerant temperature T5, second Room
The data of outer refrigerant temperature T6 and outdoor air side air-out temperature T8；
（Two）By experiment, when air conditioner refrigerant charge amount is standard charging amount 95%, in different indoor temperature T3, no
With outdoor environment temperature T7 and indoor unit wind turbine under high and low two grades of air quantity, when air conditioner refrigeration, heating operation, the is obtained
One indoor refrigerant temperature T1, second Room inner refrigerant temperature T2, room air side air-out temperature T4, the first outdoor refrigerant temperature
Spend the data of the outer refrigerant temperature T6 and outdoor air side air-out temperature T8 of T5, second Room；
（Three）There is the control system of remotely controlling air conditioner conventional air-conditioning device run time fault to detect warning function, and empty
Device is adjusted often to add up operation a period of time, control system carries out primary accurate operation troubles to air conditioner and judges, accurate operation troubles
When judging to start, the air quantity of indoor unit wind turbine is transferred to high air quantity state by control system automatically；Control system obtains in air conditioner
First indoor refrigerant temperature T1, second Room inner refrigerant temperature T2, indoor temperature T3, room air side air-out temperature T4, the
The outer refrigerant temperature T6 of one outdoor refrigerant temperature T5, second Room, outdoor environment temperature T7 and outdoor air side air-out temperature T8
Temperature data, the temperature data of acquisition is compared with the built-in experimental data of air conditioner and tentatively judges by control system,
And the failure that will likely occur, in time by wireless network transmissions to maintenance personal, maintenance personal is according to upload data and may go out
Existing fault remote control air conditioner changes operational mode, obtains new operation data, secondary judgement is carried out, to refrigeration air conditioner
Refrigeration, heating operation are judged respectively；
（Four）Control system five kinds of typical operation troubles judgment steps in air conditioner refrigerating operaton are as follows：
（a）Refrigerant leaks
1）Control system detect the i.e. Δ T1 of refrigerant inlet and outlet temperature difference T1 of indoor temperature T3 and indoor set heat exchanger=
T1-T2, corresponding indoor temperature T3 at this time, the temperature difference T1 that detection is obtained and indoor temperature T3, refrigerant charge are standard
The refrigerant of corresponding indoor set heat exchanger imports and exports the temperature difference when air quantity of charging amount 95% and indoor unit wind turbine is located at high tap position
Δ T11 is compared, such as Δ T1<Δ T11, control system tentatively judge that refrigerant leaks, and otherwise show that refrigerant leakage does not reach
To failure criterion, can not consider to repair；
2）After maintenance personal obtains Δ T1, Δ T11 and Δ T1 and Δ T11 comparison result data, maintenance personal is remotely controlled
Control system processed changes the air quantity of indoor unit wind turbine, air quantity is switched to low grade from top grade, indoor unit changes when obtaining low-grade air quantity
The data of the refrigerant inlet and outlet temperature difference T1d of hot device, then with room temperature T3, refrigerant charge be standard charging amount 95%,
The refrigerant inlet and outlet temperature difference T12 of corresponding indoor set heat exchanger is compared when the air quantity of indoor unit wind turbine is located at low-grade
Compared with such as Δ T1d<Δ T12 then judges that air conditioner refrigerant leaks, and otherwise shows that refrigerant leakage is not up to failure criterion, can not
Consider repair；
（b）Indoor machine filter screen is dirty or wind turbine capacitance fade
1）Control system detects the actual measurement temperature difference of indoor temperature T3, outdoor environment temperature T7 and indoor unit air ports
T2, that is, Δ T2=T3-T4 will detect obtained actual measurement temperature difference T2 and test the obtained T3 of temperature indoors and room in control system
The experiment temperature difference T21 of indoor unit air ports under external environment temperature T7 is compared, and such as high-grade air quantity Temperature Difference Ratio k1 >=
1.2, medium-to-high grade air quantity Temperature Difference Ratio k1=actual measurement temperature difference T2/ tests temperature difference T21, then tentatively judges that indoor machine filter screen is dirty
Or wind turbine capacitance fade failure；
2）After maintenance personal obtains Δ T2, Δ T21 and k1 data, maintenance personal's remote control control system changes indoor
Air quantity is switched to low grade, the actual measurement temperature difference of indoor unit air ports when obtaining low-grade air quantity by the air quantity of machine wind turbine from top grade
Δ T2d will detect obtained actual measurement temperature difference T2d and test the obtained T3 of temperature indoors, outdoor environment temperature in control system
The experiment temperature difference T22 of indoor unit air ports under degree T7 is compared, and such as 0.9≤low-grade air quantity Temperature Difference Ratio k2/ is high-grade
Air quantity Temperature Difference Ratio k1≤1.1, low and middle-grade air quantity Temperature Difference Ratio k2=actual measurement temperature difference T2d/ test temperature difference T22, can determine whether as mistake
Strainer is dirty, if in this range, do not can determine whether as 7 capacitance fade of indoor unit wind turbine；
（c）Outdoor unit is dirty or outdoor fan capacitance fade
1）Control system detects indoor temperature T3, outdoor environment temperature T7, the first outdoor refrigerant temperature T5 and second Room
Outer refrigerant temperature T6 will detect refrigerant temperature T6 outside the first obtained outdoor refrigerant temperature T5 and second Room and test
The outer refrigerant temperature T6 of the first outdoor refrigerant temperature T5 and second Room under the T3 of temperature indoors, the outdoor environment temperature T7 that arrive
It is compared, it is if the actual value of T5, T6 are all higher than 2 DEG C of corresponding experiment value or more, then preliminary to judge that outdoor unit is dirty or outdoor wind
Electromechanics holds wear-out failure；
2）Control system continues to detect outdoor environment temperature T7 and outdoor air side air-out temperature T8, obtains practical air inlet/outlet
Detection is obtained temperature difference T3 and tests the obtained T3 of temperature indoors and room in control system by temperature difference T3, that is, Δ T3=T8-T7
Waste air inlet and outlet temperature difference T31 under external environment temperature T7 is compared, such as Δ T3- Δs T31 >=2 DEG C, can determine whether for
Outdoor unit wind turbine capacitance fade failure, is otherwise judged as that outdoor unit is dirty；
（Five）Five kinds of typical operation troubles judgment steps when air conditioner heat-production is run are as follows：
（a）Refrigerant leaks
1）Control system detects indoor temperature T3, outdoor environment temperature T7, second Room inner refrigerant temperature T2 and the first Room
Inner refrigerant temperature T1, will obtained interior refrigerant temperature T1 of second Room inner refrigerant temperature T2 and first of detection and indoors
Temperature T3, outdoor environment temperature T7, refrigerant charge are the second Room inner refrigerant temperature T2 and the under standard charging amount 95%
One interior refrigerant temperature T1 is compared, and if the actual value of T2, T1 are respectively less than corresponding experiment value, then tentatively judges refrigerant
Leakage failure；
2）After maintenance personal obtains actual value and the corresponding experiment Value Data of T2, T1, maintenance personal's remote control control
System processed changes the air quantity of indoor unit wind turbine, air quantity is switched to low grade from top grade, indoor set heat exchanger when obtaining low-grade air quantity
Second Room inner refrigerant temperature T2 and first indoor refrigerant temperature T1, the second Room inner refrigerant temperature T2 that detection is obtained
And the first interior refrigerant temperature T1 and temperature T3 indoors, outdoor environment temperature T7, refrigerant charge are standard charging amount
Two interior refrigerant temperature T2 and the first interior refrigerant temperature T1 under 95% are compared, as the actual value of T2, T1 are respectively less than
Corresponding experiment value then judges that air conditioner refrigerant leaks, and otherwise shows that refrigerant leakage is not up to failure criterion, can not consider
Repair；
（b）Indoor machine filter screen is dirty or wind turbine capacitance fade
1）Control system detects indoor temperature T3, outdoor environment temperature T7 and indoor unit air outlet slit, import temperature difference T2
That is Δ T2=T4-T3 will detect obtained actual measurement temperature difference T2 and test the obtained T3 of temperature indoors, outdoor in control system
The experiment temperature difference T21 of indoor unit air outlet slit, import under environment temperature T7 is compared, and such as high-grade air quantity Temperature Difference Ratio k1 >=
1.2, medium-to-high grade air quantity Temperature Difference Ratio k1=actual measurement temperature difference T2/ tests temperature difference T21, then tentatively judges that indoor machine filter screen is dirty
Or wind turbine capacitance fade failure；
2）After maintenance personal obtains Δ T2, Δ T21 and k1 data, maintenance personal's remote control control system changes indoor
Air quantity is switched to low grade by the air quantity of machine wind turbine from top grade, indoor unit air outlet slit when obtaining low-grade air quantity, import actual measurement temperature
Poor Δ T2d will detect obtained actual measurement temperature difference T2d and test the obtained T3 of temperature indoors, outdoor environment in control system
The experiment temperature difference T22 of indoor unit air outlet slit, import under temperature T7 is compared, such as 0.9≤low grade air quantity Temperature Difference Ratio k2/
High-grade air quantity Temperature Difference Ratio k1≤1.1, low and middle-grade air quantity Temperature Difference Ratio k2=actual measurement temperature difference T2d/ test temperature difference T22, can determine whether
For filter screen dirtying, if in this range, do not can determine whether as 7 capacitance fade of indoor unit wind turbine；
（c）Outdoor unit is dirty or outdoor fan capacitance fade
1）Control system detects indoor temperature T3, outdoor environment temperature T7, the first outdoor refrigerant temperature T5 and second Room
Outer refrigerant temperature T6 will detect refrigerant temperature T6 and the first outdoor refrigerant temperature T5 outside obtained second Room and test
The outer refrigerant temperature T6 of the first outdoor refrigerant temperature T5 and second Room under the T3 of temperature indoors, the outdoor environment temperature T7 that arrive
It is compared, it is such as 2 DEG C lower than corresponding experiment value or more of the actual value of T5, T6, then preliminary to judge that outdoor unit is dirty or outdoor wind
Electromechanics holds wear-out failure；
2）Control system continues to detect outdoor environment temperature T7 and outdoor air side air-out temperature T8, obtains practical air inlet/outlet
Detection is obtained temperature difference T3 and tests the obtained T3 of temperature indoors, room in control system by temperature difference T3, that is, Δ T3=T7-T8
Waste air inlet and outlet temperature difference T31 under external environment temperature T7 is compared, such as Δ T3- Δs T31 >=2 DEG C, can determine whether for
Outdoor unit wind turbine capacitance fade failure, is otherwise judged as that outdoor unit is dirty.
Compared with prior art, the present invention having the following advantages that：
（1）Determination air conditioner fault earlier better meets user's requirement and realizes air conditioner energy saving in running；
（2）Breakdown judge is simple and practical, and breakdown judge is accurate.
Description of the drawings
System structure schematic diagram when Fig. 1 is the heating and air conditioner refrigerating operaton of the invention implemented；
System structure schematic diagram when Fig. 2 is the heating and air conditioner heating operation of the invention implemented.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to
The embodiment of attached drawing description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
As shown in Figure 1, 2, it is a kind of remotely controlling air conditioner operation troubles judgment method, remotely controlling air conditioner packet
Include compressor 1, outdoor unit wind turbine 2, outdoor heat exchanger 3, throttling set 4, indoor heat exchanger 5, cabin filters 6, indoor machine wind
Machine 7, control system 8, indoor heat exchanger inlet temperature sensor 9, indoor heat exchanger outlet temperature sensor 10, indoor return air temperature
Spend sensor namely room temperature sensor 11, indoor leaving air temp sensor 12, outdoor unit heat exchanger inlet temperature sensor
13, outdoor unit heat exchanger outlet temperature sensor 14, outdoor inlet air temperature sensor namely environment temperature sensor 15, outdoor go out
Air temperature sensor 16 and for freeze with heating operation conversion four-way valve 17；The outdoor heat exchanger 3, throttling set 4 and
Indoor heat exchanger 5 is sequentially connected in series connection, and the first interface a of the four-way valve 17 is connected to the entrance of outdoor heat exchanger 3, four-way valve
17 outlet b is connected to the gas returning port of compressor 1, and the entrance of four-way valve 17 is connected to the exhaust outlet of compressor 1, four-way valve 17
The outlet of second interface c and indoor heat exchanger 5；The indoor heat exchanger inlet temperature sensor 9 detects indoor heat exchanger 5
First indoor refrigerant temperature T1 of entrance, indoor heat exchanger outlet temperature sensor 10 detect that indoor heat exchanger 5 exports the
Two indoor refrigerant temperature T2, indoor return air temperature sensor namely room temperature sensor 11 detect the sky of indoor heat exchanger 5
Gas side inlet air temperature, that is, indoor temperature T3, indoor leaving air temp sensor 12 detect the room air side air-out of indoor heat exchanger 5
Temperature T4, outdoor unit heat exchanger inlet temperature sensor 13 detect the first outdoor refrigerant temperature T5 of 3 entrance of outdoor heat exchanger,
The second Room outer refrigerant temperature T6 that outdoor unit heat exchanger outlet temperature sensor 14 detects that outdoor heat exchanger 3 exports, it is outdoor into
Air temperature sensor namely environment temperature sensor 15 detect outdoor environment temperature T7, outdoor 16 sensing chamber of leaving air temp sensor
The outdoor air side air-out temperature T8 of external heat exchanger 3, the entrance and outlet are for refrigeration mode；Control system 8 is transported
Row breakdown judge is as follows：
（One）By experiment, when air conditioner refrigerant standard charging amount, in different indoor temperature T3, different outdoor environment temperature
T7 and indoor unit wind turbine 7 are spent under high and low two grades of air quantity, when air conditioner refrigeration, heating operation, obtain the first indoor refrigerant
Temperature T1, second Room inner refrigerant temperature T2, room air side air-out temperature T4, the first outdoor refrigerant temperature T5, second Room
The data of outer refrigerant temperature T6 and outdoor air side air-out temperature T8；
（Two）By experiment, when air conditioner refrigerant charge amount is standard charging amount 95%, in different indoor temperature T3, no
With outdoor environment temperature T7 and indoor unit wind turbine 7 under high and low two grades of air quantity, when air conditioner refrigeration, heating operation, the is obtained
One indoor refrigerant temperature T1, second Room inner refrigerant temperature T2, room air side air-out temperature T4, the first outdoor refrigerant temperature
Spend the data of the outer refrigerant temperature T6 and outdoor air side air-out temperature T8 of T5, second Room；
（Three）There is the control system 8 of remotely controlling air conditioner conventional air-conditioning device run time fault to detect warning function, and
Air conditioner often adds up operation a period of time, and generally five days to ten days a period of time, control system 8 carries out primary essence to air conditioner
True operation troubles judges that when accurate operation troubles judges to start, the air quantity of indoor unit wind turbine 7 is transferred to height by control system 8 automatically
Air quantity state；Control system 8 obtains the first indoor refrigerant temperature T1, second Room inner refrigerant temperature T2, interior in air conditioner
The outer refrigerant temperature T6 of temperature T3, room air side air-out temperature T4, the first outdoor refrigerant temperature T5, second Room, outdoor ring
The temperature data of border temperature T7 and outdoor air side air-out temperature T8, control system 8 is by the temperature data of acquisition and air conditioner
Built-in experimental data is compared and tentatively judges, and the failure that will likely occur is in time by wireless network transmissions to repair
Personnel, maintenance personal obtain new according to data and the fault remote being likely to occur control air conditioner change operational mode is uploaded
Operation data carries out secondary judgement, is judged respectively refrigeration air conditioner point refrigeration and heating operation；
（Four）Five kinds of typical operation troubles judgment steps are as follows when air conditioner refrigerating operaton：
As shown in Figure 1, the entrance of the four-way valve 17 is connected to the first interface a of four-way valve 17, the outlet b of four-way valve 17
It is connected to the second interface c of four-way valve 9；
（a）Refrigerant leaks
Control system 8 detect the i.e. Δ T1 of refrigerant inlet and outlet temperature difference T1 of indoor temperature T3 and indoor set heat exchanger 5=
T1-T2, corresponding indoor temperature T3 at this time, the temperature difference T1 that detection is obtained and indoor temperature T3, refrigerant charge are standard
The refrigerant inlet and outlet temperature of corresponding indoor set heat exchanger 5 when the air quantity of charging amount 95% and indoor unit wind turbine 7 is located at high tap position
Poor Δ T11 is compared, such as Δ T1<Δ T11, control system tentatively judge that refrigerant leaks, and otherwise show refrigerant leakage not
Reach failure criterion, can not consider to repair；
2）After maintenance personal obtains Δ T1, Δ T11 and Δ T1 and Δ T11 comparison result data, maintenance personal is remotely controlled
Control system 8 processed changes the air quantity of indoor unit wind turbine 7, air quantity is switched to low grade from top grade, indoor unit when obtaining low-grade air quantity
The data of the refrigerant inlet and outlet temperature difference T1d of heat exchanger 5, then with room temperature T3, refrigerant charge be standard charging amount
95%, when the air quantity of indoor unit wind turbine 7 is located at low-grade the refrigerant of corresponding indoor set heat exchanger 5 import and export temperature difference T12 into
Row compares, such as Δ T1d<Δ T12 then judges that air conditioner refrigerant leaks, and otherwise shows that refrigerant leakage is not up to failure criterion,
It can not consider to repair；
（b）Indoor machine filter screen is dirty or wind turbine capacitance fade
1）Control system 8 detects the actual measurement temperature difference of indoor temperature T3, outdoor environment temperature T7 and indoor unit air ports
Δ T2, that is, Δ T2=T3-T4 will detect obtained actual measurement temperature difference T2 and test obtained temperature T3 indoors in control system 8
And the experiment temperature difference T21 of the indoor unit air ports under outdoor environment temperature T7 is compared, such as high-grade air quantity Temperature Difference Ratio
K1 >=1.2, medium-to-high grade air quantity Temperature Difference Ratio k1=actual measurement temperature difference T2/ test temperature difference T21, then preliminary to judge that indoor unit filters
Net 6 is dirty or 7 capacitance fade failure of wind turbine；
2）After maintenance personal obtains Δ T2, Δ T21 and k1 data, maintenance personal's remote control control system 8 changes room
Air quantity is switched to low grade from top grade, runs 5min, indoor unit air passes in and out when obtaining low-grade air quantity by the air quantity of interior machine wind turbine 7
The actual measurement temperature difference T2d of mouth will detect obtained actual measurement temperature difference T2d and test obtained temperature indoors in control system 8
The experiment temperature difference T22 of indoor unit air ports under T3, outdoor environment temperature T7 is compared, such as 0.9≤low grade air quantity
Temperature Difference Ratio k2/ top grade air quantity Temperature Difference Ratios k1≤1.1, low and middle-grade air quantity Temperature Difference Ratio k2=actual measurement temperature difference T2d/ test temperature difference
T22, can determine whether for filter screen 6 it is dirty, if in this range, do not can determine whether as 7 capacitance fade of indoor unit wind turbine；
（c）Outdoor unit is dirty or outdoor fan capacitance fade
1）Control system 8 detects indoor temperature T3, outdoor environment temperature T7, the first outdoor refrigerant temperature T5 and second Room
Outer refrigerant temperature T6 will detect refrigerant temperature T6 outside the first obtained outdoor refrigerant temperature T5 and second Room and test
The outer refrigerant temperature T6 of the first outdoor refrigerant temperature T5 and second Room under the T3 of temperature indoors, the outdoor environment temperature T7 that arrive
It is compared, it is if the actual value of T5, T6 are all higher than 2 DEG C of corresponding experiment value or more, then preliminary to judge that outdoor unit 3 is dirty or outdoor wind
2 capacitance fade failure of machine；
2）Control system 8 continues to detect outdoor environment temperature T7 and outdoor air side air-out temperature T8, obtains practical disengaging
Detection is obtained temperature difference T3 and tests obtained temperature T3 indoors in control system 8 by wind temperature difference T3, that is, Δ T3=T8-T7
And the waste air inlet and outlet temperature difference T31 under outdoor environment temperature T7 is compared, and such as Δ T3- Δs T31 >=2 DEG C, can be sentenced
Break as 2 capacitance fade failure of outdoor unit wind turbine, is otherwise judged as that outdoor unit 3 is dirty；
（Five）Five kinds of typical operation troubles judgment steps when air conditioner heat-production is run are as follows：
As shown in Fig. 2, the entrance of the four-way valve 17 is connected to the second interface c of four-way valve 17, the first of four-way valve 17
Interface a and the outlet b of four-way valve 17 be connected to；
（a）Refrigerant leaks
1）Control system 8 detects indoor temperature T3, outdoor environment temperature T7, second Room inner refrigerant temperature T2 and the first Room
Inner refrigerant temperature T1, will obtained interior refrigerant temperature T1 of second Room inner refrigerant temperature T2 and first of detection and indoors
Temperature T3, outdoor environment temperature T7, refrigerant charge are the second Room inner refrigerant temperature T2 and the under standard charging amount 95%
One interior refrigerant temperature T1 is compared, and if the actual value of T2, T1 are respectively less than corresponding experiment value, then tentatively judges refrigerant
Leakage failure；
2）After maintenance personal obtains actual value and the corresponding experiment Value Data of T2, T1, maintenance personal's remote control control
System 8 processed changes the air quantity of indoor unit wind turbine 7, air quantity is switched to low grade from top grade, indoor unit exchanges heat when obtaining low-grade air quantity
The indoor refrigerant temperature T1 of the second Room inner refrigerant temperature T2 of device 5 and first, the second Room inner refrigerant temperature that detection is obtained
The degree interior refrigerant temperature T1 of T2 and first are filled with temperature T3 indoors, outdoor environment temperature T7, refrigerant charge for standard
The interiors second Room inner refrigerant temperature T2 and first refrigerant temperature T1 under fluence 95% is compared, and actual value such as is small
In corresponding experiment value, then judge that air conditioner refrigerant leaks, otherwise shows that refrigerant leakage is not up to failure criterion, can not examine
Consider repair；
（b）Indoor machine filter screen is dirty or wind turbine capacitance fade
1）Control system（8）Detect the actual measurement of indoor temperature T3, outdoor environment temperature T7 and indoor unit air outlet slit, import
Temperature difference T2, that is, Δ T2=T4-T3 obtains actual measurement temperature difference T2 and experiment in control system 8 that detection obtains warm indoors
Degree T3, the indoor unit air outlet slit under outdoor environment temperature T7, import experiment temperature difference T21 be compared, such as high-grade air quantity
Temperature Difference Ratio k1 >=1.2, medium-to-high grade air quantity Temperature Difference Ratio k1=actual measurement temperature difference T2/ tests temperature difference T21, then preliminary to judge interior
Machine filter screen 6 is dirty or 7 capacitance fade failure of wind turbine；
2）After maintenance personal obtains Δ T2, Δ T21 and k1 data, maintenance personal's remote control control system 8 changes room
Air quantity is switched to low grade by the air quantity of interior machine wind turbine 7 from top grade, indoor unit air outlet slit when obtaining low-grade air quantity, import reality
Temperature difference T2d is surveyed, obtained actual measurement temperature difference T2d will be detected and tests the obtained T3 of temperature indoors, outdoor in control system 8
The experiment temperature difference T22 of indoor unit air outlet slit, import under environment temperature T7 is compared, such as 0.9≤low grade air quantity temperature difference
Than k2/ top grade air quantity Temperature Difference Ratios k1≤1.1, low and middle-grade air quantity Temperature Difference Ratio k2=actual measurement temperature difference T2d/ tests temperature difference T22,
Can determine whether for filter screen 6 it is dirty, if in this range, do not can determine whether as 7 capacitance fade of indoor unit wind turbine；
（c）Outdoor unit is dirty or outdoor fan capacitance fade
1）Control system 8 detects indoor temperature T3, outdoor environment temperature T7, the first outdoor refrigerant temperature T5 and second Room
Outer refrigerant temperature T6 will detect refrigerant temperature T6 and the first outdoor refrigerant temperature T5 outside obtained second Room and test
The outer refrigerant temperature T6 of the first outdoor refrigerant temperature T5 and second Room under the T3 of temperature indoors, the outdoor environment temperature T7 that arrive
It is compared, it is such as 2 DEG C lower than corresponding experiment value or more of the actual value of T5, T6, then preliminary to judge that outdoor unit 3 is dirty or outdoor wind
2 capacitance fade failure of machine；
2）Control system 8 continues to detect outdoor environment temperature T7 and outdoor air side air-out temperature T8, obtains practical disengaging
Wind temperature difference T3, that is, Δ T3=T7-T8, detection is obtained test in temperature difference T3 and control system 8 the obtained T3 of temperature indoors,
Waste air inlet and outlet temperature difference T31 under outdoor environment temperature T7 is compared, and such as Δ T3- Δs T31 >=2 DEG C, can determine whether
For 2 capacitance fade failure of outdoor unit wind turbine, otherwise it is judged as that outdoor unit 3 is dirty.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
Can these embodiments be carried out with a variety of variations, modification, replacement and deformation in the case of being detached from the principle of the present invention and objective, this
The range of invention is limited by claim and its equivalent.
Claims (1)
1. a kind of air conditioner remote control operation troubles judgment method, it is characterised in that air conditioner includes compressor（1）, outdoor unit
Wind turbine（2）, outdoor heat exchanger（3）, throttling set（4）, indoor heat exchanger（5）, cabin filters（6）, indoor unit wind turbine（7）、
Control system（8）, indoor heat exchanger inlet temperature sensor（9）, indoor heat exchanger outlet temperature sensor（10）, indoor return air
Temperature sensor namely room temperature sensor（11）, indoor leaving air temp sensor（12）, outdoor unit heat exchanger inlet temperature
Sensor（13）, outdoor unit heat exchanger outlet temperature sensor（14）, outdoor inlet air temperature sensor namely environment temperature sensing
Device（15）, outdoor leaving air temp sensor（16）And the four-way valve for freezing with heating operation conversion（17）；The interior is changed
Hot device inlet temperature sensor（9）Detect indoor heat exchanger（5）The indoor refrigerant temperature T1 of the first of entrance, indoor heat exchanger go out
Mouth temperature sensor（10）Detect indoor heat exchanger（5）The second Room inner refrigerant temperature T2 of outlet, indoor return air temperature sensing
Device namely room temperature sensor（11）Detect indoor heat exchanger（5）Air side inlet air temperature, that is, indoor temperature T3, interior goes out
Air temperature sensor（12）Detect indoor heat exchanger（5）Room air side air-out temperature T4, outdoor unit heat exchanger inlet temperature
Sensor（13）Detect outdoor heat exchanger（3）First outdoor refrigerant temperature T5 of entrance, outdoor unit heat exchanger outlet temperature pass
Sensor（14）Detect outdoor heat exchanger（3）The outer refrigerant temperature T6 of the second Room of outlet, outdoor inlet air temperature sensor namely ring
Border temperature sensor（15）Detect outdoor environment temperature T7, outdoor leaving air temp sensor（16）Detect outdoor heat exchanger（3）'s
Outdoor air side air-out temperature T8, the entrance and outlet are for refrigeration mode；Control system（8）Operation troubles judges
It is as follows：
（One）By experiment, when air conditioner refrigerant standard charging amount, in different indoor temperature T3, different outdoor environment temperature T7
And indoor unit wind turbine（7）Under high and low two grades of air quantity, when air conditioner refrigeration, heating operation, the first indoor refrigerant temperature is obtained
Spend T1, second Room inner refrigerant temperature T2, room air side air-out temperature T4, the first outdoor refrigerant temperature T5, outside second Room
The data of refrigerant temperature T6 and outdoor air side air-out temperature T8；
（Two）By experiment, when air conditioner refrigerant charge amount is standard charging amount 95%, in different indoor temperature T3, different chamber
External environment temperature T7 and indoor unit wind turbine（7）Under high and low two grades of air quantity, air conditioner refrigeration, heating operation when, obtain first
Indoor refrigerant temperature T1, second Room inner refrigerant temperature T2, room air side air-out temperature T4, the first outdoor refrigerant temperature
The data of the outer refrigerant temperature T6 and outdoor air side air-out temperature T8 of T5, second Room；
（Three）The control system of remotely controlling air conditioner（8）Warning function is detected with conventional air-conditioning device run time fault, and empty
Device is adjusted often to add up operation a period of time, control system（8）Accurate operation troubles is carried out once to air conditioner to judge, accurate operation event
When barrier judges to start, control system（8）Automatically by indoor unit wind turbine（7）Air quantity be transferred to high air quantity state；Control system（8）It obtains
Take the first indoor refrigerant temperature T1, second Room inner refrigerant temperature T2, indoor temperature T3, room air side air-out in air conditioner
The outer refrigerant temperature T6 of temperature T4, the first outdoor refrigerant temperature T5, second Room, outdoor environment temperature T7 and outdoor air side go out
The temperature data of air temperature T8, control system（8）The temperature data of acquisition is compared with the built-in experimental data of air conditioner
And the failure that tentatively judges, and will likely occur, in time by wireless network transmissions to maintenance personal, maintenance personal is according to upload
Data and the fault remote control air conditioner being likely to occur change operational mode, obtain new operation data, carry out secondary judgement,
Refrigeration air conditioner refrigeration and heating operation are judged；
（Four）Control system（8）In air conditioner refrigerating operaton, five kinds of typical operation troubles judgment steps are as follows：
（a）Refrigerant leaks
1）Control system（8）Detect indoor temperature T3 and indoor set heat exchanger（5）Refrigerant inlet and outlet temperature difference T1, that is, Δ
T1=T1-T2, corresponding indoor temperature T3 at this time, the temperature difference T1 that detection is obtained and indoor temperature T3, refrigerant charge are mark
Quasi- charging amount 95% and indoor unit wind turbine（7）Air quantity be located at indoor set heat exchanger corresponding when high tap position（5）Refrigerant into
Outlet temperature difference T11 is compared, such as Δ T1<Δ T11, control system（8）It is preliminary to judge that refrigerant leaks, otherwise show to freeze
Agent leakage is not up to failure criterion, can not consider to repair；
2）After maintenance personal obtains Δ T1, Δ T11 and Δ T1 and Δ T11 comparison result data, maintenance personal's remote control control
System processed（8）Change indoor unit wind turbine（7）Air quantity, air quantity is switched to low grade from top grade, indoor unit when obtaining low-grade air quantity
Heat exchanger（5）Refrigerant inlet and outlet temperature difference T1d data, then with room temperature T3, refrigerant charge be standard filling
Amount 95%, indoor unit wind turbine（7）Air quantity indoor set heat exchanger corresponding when being located at low-grade（5）Refrigerant import and export the temperature difference
Δ T12 is compared, such as Δ T1d<Δ T12 then judges that air conditioner refrigerant leaks, and otherwise shows that refrigerant leakage is not up to event
Barrier standard can not consider to repair；
（b）Indoor machine filter screen is dirty or wind turbine capacitance fade
1）Control system（8）Detect indoor temperature T3, outdoor environment temperature T7 and indoor unit air ports temperature difference T2, that is, Δ
T2=T3-T4, the actual measurement temperature difference T2 that detection is obtained and control system（8）It is middle to test the obtained T3 of temperature indoors and outdoor
Indoor unit air ports experiment temperature difference T21 under environment temperature T7 is compared, such as high-grade air quantity Temperature Difference Ratio k1 >=1.2,
Its medium-to-high grade air quantity Temperature Difference Ratio k1=actual measurement temperature difference T2/ tests temperature difference T21, then tentatively judges indoor machine filter screen（6）It is dirty or
Wind turbine（7）Capacitance fade failure；
2）After maintenance personal obtains Δ T2, Δ T21 and k1 data, maintenance personal's remote control control system（8）Change indoor
Machine wind turbine（7）Air quantity, air quantity is switched to low grade from top grade, the actual measurement temperature of indoor unit air ports when obtaining low-grade air quantity
Poor Δ T2d, the actual measurement temperature difference T2d that detection is obtained and control system（8）It is middle to test the obtained T3 of temperature indoors, outdoor ring
The experiment temperature difference T22 of indoor unit air ports under the temperature T7 of border is compared, such as 0.9≤low grade air quantity Temperature Difference Ratio k2/
High-grade air quantity Temperature Difference Ratio k1≤1.1, low and middle-grade air quantity Temperature Difference Ratio k2=actual measurement temperature difference T2d/ test temperature difference T22, can determine whether
For filter screen（6）It is dirty, if in this range, do not can determine whether as indoor unit wind turbine（7）Capacitance fade；
（c）Outdoor unit is dirty or outdoor fan capacitance fade
1）Control system（8）It detects outside indoor temperature T3, outdoor environment temperature T7, the first outdoor refrigerant temperature T5 and second Room
Refrigerant temperature T6 will detect refrigerant temperature T6 outside the first obtained outdoor refrigerant temperature T5 and second Room and be obtained with experiment
The T3 of temperature indoors, outdoor environment temperature T7 under the first outdoor refrigerant temperature T5 and the outer refrigerant temperature T6 of second Room into
Row compares, and if the actual value of T5, T6 are all higher than 2 DEG C of corresponding experiment value or more, then tentatively judges outdoor unit（3）Dirty or outdoor wind
Machine（2）Capacitance fade failure；
2）Control system（8）Continue to detect outdoor environment temperature T7 and outdoor air side air-out temperature T8, obtains practical air inlet/outlet
Detection is obtained practical disengaging temperature difference T3 and control system by temperature difference T3, that is, Δ T3=T8-T7（8）It is middle test obtain in room
Waste air inlet and outlet temperature difference T31 under interior temperature T3 and outdoor environment temperature T7 is compared, such as Δ T3- Δs T31 >=2
DEG C, it can determine whether as outdoor unit wind turbine（2）Capacitance fade failure, is otherwise judged as outdoor unit（3）It is dirty；
（Five）Five kinds of typical operation troubles judgment steps when air conditioner heat-production is run are as follows：
（a）Refrigerant leaks
1）Control system（8）It is indoor to detect indoor temperature T3, outdoor environment temperature T7, second Room inner refrigerant temperature T2 and first
Refrigerant temperature T1, the interior refrigerant temperature T1 of second Room inner refrigerant temperature T2 and first that detection is obtained and temperature indoors
It is the second Room inner refrigerant temperature T2 and first under standard charging amount 95% to spend T3, outdoor environment temperature T7, refrigerant charge
Indoor refrigerant temperature T1 is compared, and if the actual value of T2, T1 are respectively less than corresponding experiment value, then tentatively judges that refrigerant is let out
Leak failure；
2）After maintenance personal obtains actual value and the corresponding experiment Value Data of T2, T1, maintenance personal's remote control control system
System（8）Change indoor unit wind turbine（7）Air quantity, air quantity is switched to low grade from top grade, indoor unit exchanges heat when obtaining low-grade air quantity
Device（5）The indoor refrigerant temperature T1 of second Room inner refrigerant temperature T2 and first, the second Room inner refrigerant that detection is obtained
The interior refrigerant temperature T1 of temperature T2 and first and temperature T3 indoors, outdoor environment temperature T7, refrigerant charge are standard
The interiors second Room inner refrigerant temperature T2 and first refrigerant temperature T1 under charging amount 95% is compared, such as the reality of T2, T1
Value is respectively less than corresponding experiment value, then judges that air conditioner refrigerant leaks, and otherwise shows that refrigerant leakage is not up to failure criterion,
It can not consider to repair；
（b）Indoor machine filter screen is dirty or wind turbine capacitance fade
1）Control system（8）Detect the actual measurement temperature difference of indoor temperature T3, outdoor environment temperature T7 and indoor unit air outlet slit, import
Detection is obtained actual measurement temperature difference T2 and control system by Δ T2, that is, Δ T2=T4-T3（8）It is middle test obtain the T3 of temperature indoors,
Indoor unit air outlet slit, import experiment temperature difference T21 under outdoor environment temperature T7 are compared, such as high-grade air quantity Temperature Difference Ratio k1
>=1.2, medium-to-high grade air quantity Temperature Difference Ratio k1=actual measurement temperature difference T2/ tests temperature difference T21, then tentatively judges indoor machine filter screen
（6）Dirty or wind turbine（7）Capacitance fade failure；
2）After maintenance personal obtains Δ T2, Δ T21 and k1 data, maintenance personal's remote control control system（8）Change indoor
Machine wind turbine（7）Air quantity, air quantity is switched to low grade from top grade, indoor unit air outlet slit when obtaining low-grade air quantity, import reality
Temperature difference T2d is surveyed, the actual measurement temperature difference T2d and control system that detection is obtained（8）It is middle to test the obtained T3 of temperature indoors, room
The experiment temperature difference T22 of indoor unit air outlet slit, import under external environment temperature T7 is compared, such as 0.9≤low grade air quantity temperature
Difference ratio k2/ top grade air quantity Temperature Difference Ratios k1≤1.1, low and middle-grade air quantity Temperature Difference Ratio k2=actual measurement temperature difference T2d/ test temperature difference
T22 can determine whether as filter screen（6）It is dirty, if in this range, do not can determine whether as indoor unit wind turbine（7）Capacitance fade；
（c）Outdoor unit is dirty or outdoor fan capacitance fade
1）Control system（8）It detects outside indoor temperature T3, outdoor environment temperature T7, the first outdoor refrigerant temperature T5 and second Room
Refrigerant temperature T6 will detect refrigerant temperature T6 and the first outdoor refrigerant temperature T5 outside obtained second Room and be obtained with experiment
The T3 of temperature indoors, outdoor environment temperature T7 under the first outdoor refrigerant temperature T5 and the outer refrigerant temperature T6 of second Room,
Such as 2 DEG C lower than corresponding experiment value or more of the actual value of T5, T6, then tentatively outdoor unit is judged（3）Dirty or outdoor fan（2）Electricity
Hold wear-out failure；
2）Control system（8）Continue to detect outdoor environment temperature T7 and outdoor air side air-out temperature T8, obtains practical air inlet/outlet
Detection is obtained temperature difference T3 and control system by temperature difference T3, that is, Δ T3=T7-T8（8）It is middle test obtain the T3 of temperature indoors,
Waste air inlet and outlet temperature difference T31 under outdoor environment temperature T7 is compared, and such as Δ T3- Δs T31 >=2 DEG C, can determine whether
For outdoor unit wind turbine（2）Capacitance fade failure, is otherwise judged as outdoor unit（3）It is dirty.
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| PCT/CN2016/092841 WO2017215090A1 (en) | 2016-06-14 | 2016-08-02 | Operation fault determination method for air conditioner in remote control manner |
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| CN106839326B (en) * | 2017-02-28 | 2019-06-21 | 广东美的制冷设备有限公司 | Air conditioner fault reminding method, device and air conditioner |
| CN106895561B (en) * | 2017-02-28 | 2019-07-30 | 广东美的制冷设备有限公司 | It is a kind of detection air-conditioner coolant leakage method, air conditioner control device and air conditioner |
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| CN107143974B (en) * | 2017-05-05 | 2020-10-20 | 青岛海尔空调电子有限公司 | Control device and method for outdoor fan of air conditioner |
| US11204184B2 (en) * | 2018-04-05 | 2021-12-21 | Mitsubishi Electric Corporation | Air-conditioning apparatus with dirt detection |
| CN109140687A (en) * | 2018-06-15 | 2019-01-04 | 珠海格力电器股份有限公司 | Fault diagnosis method, device, system, air conditioner, server and storage medium |
| WO2020003528A1 (en) * | 2018-06-29 | 2020-01-02 | 日立ジョンソンコントロールズ空調株式会社 | Air conditioning management system, air conditioning management method, and program |
| CN108895607A (en) * | 2018-07-04 | 2018-11-27 | 珠海格力电器股份有限公司 | Air conditioner fault processing method and device, storage medium, air conditioner and server |
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