CN111637597A - Self-checking method of air conditioning system - Google Patents
Self-checking method of air conditioning system Download PDFInfo
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- CN111637597A CN111637597A CN202010449727.3A CN202010449727A CN111637597A CN 111637597 A CN111637597 A CN 111637597A CN 202010449727 A CN202010449727 A CN 202010449727A CN 111637597 A CN111637597 A CN 111637597A
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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
- F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
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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
- F24F11/52—Indication arrangements, e.g. displays
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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
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- 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
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
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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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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
- F24F11/88—Electrical aspects, e.g. circuits
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a self-checking method of an air conditioning system, which takes the current ambient temperature T1 as a reference, and the air conditioning system is sequentially subjected to an initial stage, a temperature sensor initial detection stage, a temperature sensor re-detection stage, a heating detection stage, a four-way valve detection stage and a refrigeration detection stage, so that the corresponding dynamic adjustment judgment range based on the detected ambient temperature is realized, the running state of the air conditioning system is comprehensively judged, the detection accuracy and efficiency are improved, the dependence on production detection equipment is reduced, the equipment cost and the labor cost are reduced, the flexible short-line production can be realized, and the production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of air conditioner detection, in particular to a self-checking method of an air conditioner system.
Background
The existing air conditioner workshop detection is realized by external detection equipment, only partial data can be read, after preset judgment data are input, the data cannot be corrected along with the change of the environmental temperature, the detection data are incomplete, and the detection precision is insufficient; the investment of commodity inspection equipment is large, the debugging is difficult, the commodity inspection equipment is over dependent on equipment merchants, and the detection efficiency is influenced; the production line is not easy to adjust due to detection equipment, and can not flexibly deal with various products; requires high-level craftsman operation and has high labor cost.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a self-checking method of an air conditioning system, which can comprehensively judge the running state and improve the detection accuracy and efficiency.
In order to achieve the purpose, the self-checking method of the air conditioning system provided by the invention takes the current ambient temperature T1 as a reference, the temperature sensor of the air conditioning system is checked again based on the coil temperature and the exhaust temperature after being checked for qualification, the heating operation parameter in the heating mode is used for carrying out rated heating check after being checked for qualification, the cooling operation parameter in the cooling mode is used for carrying out rated cooling check after being checked for qualification, and the air conditioning system is judged to be a qualified product after being checked for qualification.
Further, the self-checking method comprises the following steps:
s1, an initial stage: acquiring the current ambient temperature T1, and powering on an air conditioning system;
s2, a temperature sensor initial detection stage: detecting the temperature by a temperature sensor of the air conditioning system, calculating the difference between the detected initial detection temperature value a and the environment temperature T1, judging that the temperature is qualified if the difference is smaller than the requirement of a rated deviation value, and entering the step S3;
s3, a temperature sensor rechecking stage: firstly, detecting and recording an initial coil temperature T20 and an initial exhaust temperature Tp0 of the heat exchanger, then continuously operating the air conditioning system in a heating mode for a rated time T1, and detecting and recording a real-time coil temperature T21 and a real-time exhaust temperature Tp1 of the heat exchanger again, wherein if the requirements that the difference between the initial coil temperature T20 and the real-time coil temperature T21 is higher than a rated first coil temperature value N and the difference between the real-time exhaust temperature Tp1 and the initial exhaust temperature Tp0 is not smaller than an undetermined first exhaust temperature M are met, the heat exchanger is judged to be qualified, and the step S4 is carried out;
s4, heating detection stage: acquiring the current heating operation parameter of the air conditioning system after the continuous operation rated time T1, and comparing the current heating operation parameter with the rated heating parameter range corresponding to the current environment temperature T1, wherein if the heating operation parameter is within the rated heating parameter range, the judgment is qualified, and the step S5 is carried out;
s5, a four-way valve detection stage: the air conditioning system is switched from a heating mode to a cooling mode to operate, and after the air conditioning system continuously operates for a rated time T2, the real-time coil temperature T22 of the heat exchanger is detected and recorded, wherein if the difference between the real-time coil temperature T22 and the initial coil temperature T20 is higher than a rated second coil temperature value X, the judgment is qualified, and the step S6 is entered;
s6, a refrigeration detection stage: obtaining the current refrigeration operation parameter of the air conditioning system after the continuous operation for the rated time T2, and comparing the current refrigeration operation parameter with the rated refrigeration parameter range corresponding to the current environment temperature T1, wherein if the refrigeration operation parameter is within the rated refrigeration parameter range, the judgment is qualified;
and finally judging the air conditioning system which finishes the detection stage of the six steps as a qualified product.
Further, the heating operation parameters include any one or more of a high pressure, a low pressure, a discharge temperature, and an operation current.
Further, the method comprises the steps of dividing the system into a plurality of levels of heating temperature levels based on the environment temperature T1, wherein a plurality of rated heating parameter ranges corresponding to all heating operation parameters are set in each level of heating temperature level, and when all the heating operation parameters are in the corresponding heating parameter ranges, the heating detection stage is judged to be qualified; and otherwise, when any one heating operation parameter is not in the corresponding heating parameter range, judging that the heating detection stage is unqualified.
Further, each heating temperature stage corresponds to an ambient temperature T1.
Further, the refrigeration operation parameter includes any one or more of a high pressure, a low pressure, a discharge temperature, and an operation current.
Further, the air conditioner is divided into a plurality of refrigeration temperature levels based on the environment temperature T1, each refrigeration temperature level is set with a plurality of rated refrigeration parameter ranges corresponding to various refrigeration operation parameters, and when the various refrigeration operation parameters are in the corresponding refrigeration parameter ranges, the refrigeration detection stage is judged to be qualified; and otherwise, when any refrigeration operation parameter is not in the corresponding refrigeration parameter range, judging that the refrigeration detection stage is unqualified.
Further, in steps S2 to S6, when any one of the steps does not satisfy the corresponding requirement, it is determined as a failure and the self-inspection is immediately stopped.
Further, when the self-checking is stopped due to failure in any step, the corresponding detection fault code is displayed by the nixie tube.
Further, in step S2, based on the rated deviation values a and B corresponding to the environmental temperature T1 and the preliminary inspection temperature a, respectively, when the environmental temperature T1 is greater than or equal to the preliminary inspection temperature a, the difference between the environmental temperature T1 and the preliminary inspection temperature a is greater than or equal to the rated deviation value a, and the result is determined to be qualified; and when the environmental temperature T1 is less than the initial detection temperature a, the difference between the initial detection temperature a and the environmental temperature T1 is greater than or equal to the rated deviation value B, and the judgment is qualified.
The invention adopts the scheme, and has the beneficial effects that: through with air conditioning system in proper order through initial stage, temperature sensor preliminary examination stage, temperature sensor reinspects the stage, heat and detect the stage, cross valve detection stage and refrigeration detection stage after to the realization corresponds dynamic adjustment and judges the scope based on the detection ambient temperature of locating, judges air conditioning system's running state comprehensively, improves detection accuracy and efficiency, reduces the reliance to production check out test set, reduces equipment cost, and the cost of labor can nimble short-line production, improves production efficiency.
Drawings
Fig. 1 is a schematic view of an air conditioning system of the present invention.
The system comprises a compressor 1, an oil separator 2, a four-way valve 3, a gas-liquid separator 4, an outdoor heat exchanger 5, an expansion valve 6, an indoor heat exchanger 7, a first internal fan 8 and a second internal fan 9.
Detailed Description
To facilitate an understanding of the invention, the invention is described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete.
Referring to fig. 1, a self-checking method of an air conditioning system is disclosed, which takes a current ambient temperature T1 as a reference, performs a first check on a temperature sensor of the air conditioning system to be qualified, performs a second check on the temperature sensor based on a coil temperature and an exhaust temperature, performs a rated heating check based on a heating operation parameter in a heating mode after the second check is qualified, performs a rated cooling check based on a cooling operation parameter in a cooling mode after the rated heating check is qualified, and determines that the air conditioning system is a qualified product when the rated cooling check is qualified.
Specifically, the self-checking method of the embodiment includes the following steps:
step S1, an initial stage: and acquiring the current ambient temperature T1, and powering on the air conditioning system.
S2, a temperature sensor initial detection stage: detecting the temperature by a temperature sensor of the air conditioning system, detecting to obtain an initial detection temperature value a, calculating a difference value between the detected initial detection temperature value a and the ambient temperature T1, wherein if the difference value is smaller than the requirement of a rated deviation value, the air conditioning system is judged to be qualified, and the step S3 is executed; on the other hand, if the requirement is not satisfied, the self-test is determined to be not satisfactory, and the corresponding test failure code P1 is displayed immediately after the self-test is stopped.
Further, in step S2, setting the rated deviation values a and B corresponding to the ambient temperature T1 and the initial inspection temperature a, respectively, that is, when T1 is greater than or equal to a, corresponding to T1-a < a, the result is determined to be qualified; when T1 is less than a, corresponding to a-T1 is less than B, the product is judged to be qualified; the rated deviation values A and B are respectively used for calculating the difference value under two conditions, so that the accuracy is improved.
S3, a temperature sensor rechecking stage: firstly, detecting and recording an initial coil temperature T20 and an initial exhaust temperature Tp0 of the heat exchanger, then continuously operating the air conditioning system in a heating mode for a rated time T1, and detecting and recording a real-time coil temperature T21 and a real-time exhaust temperature Tp1 of the heat exchanger again, wherein if the requirements that the difference value between the initial coil temperature T20 and the real-time coil temperature T21 is higher than a rated first coil temperature value N and the difference value between the real-time exhaust temperature Tp1 and the initial exhaust temperature Tp0 is not less than an undefined first exhaust temperature M (namely, the requirements that T21 is less than T20-N and Tp1 is not less than Tp0+ M are met), judging that the heat exchanger is qualified, and entering step S4; on the other hand, if the requirement is not satisfied, the self-test is determined to be not satisfactory, and the corresponding test failure code P2 is displayed immediately after the self-test is stopped.
S4, a heating detection stage: acquiring the current heating operation parameter of the air conditioning system after the continuous operation rated time T1, and comparing the current heating operation parameter with the rated heating parameter range corresponding to the current environment temperature T1, wherein if the requirement that the heating operation parameter is within the rated heating parameter range is met, the judgment is qualified, and the step S5 is carried out; on the other hand, if the requirement is not satisfied, the self-test is determined to be not satisfactory, and the corresponding test failure code P3 is displayed immediately after the self-test is stopped.
Further, in step S4, the heating operation parameters of the present embodiment include any one or more of a high pressure, a low pressure, an exhaust temperature and an operation current, wherein for convenience of description, the heating operation parameters include a high pressure, a low pressure, an exhaust temperature and an operation current. The system is divided into a plurality of heating temperature levels based on the environmental temperature T1 in advance, each heating temperature level corresponds to one environmental temperature T1, each heating temperature level is correspondingly provided with a plurality of rated heating parameter ranges corresponding to various heating operation parameters, namely, the heating temperature level is the first heating temperature levelIn the N-stage heating temperature stages, the corresponding high-pressure range is HN1-HN2Low pressure range of QN1-QN2Exhaust gas temperature range of GN1-GN2With an operating current of RN1-RN2Therefore, the four operation parameters are respectively compared with the corresponding rated heating parameter ranges, and when all the heating operation parameters are in the corresponding heating parameter ranges, the heating detection stage is judged to be qualified; and otherwise, when any one heating operation parameter is not in the corresponding heating parameter range, judging that the heating detection stage is unqualified.
S5, a four-way valve detection stage: the air conditioning system is switched from a heating mode to a cooling mode to operate, and after the air conditioning system continuously operates for a rated time T2, the real-time coil temperature T22 of the heat exchanger is detected and recorded, wherein if the difference between the real-time coil temperature T22 and the initial coil temperature T20 is higher than a rated second coil temperature value X, the judgment is qualified, and the step S6 is entered; on the other hand, if the requirement is not satisfied, the self-test is determined to be not satisfactory, and the corresponding test failure code P4 is displayed immediately after the self-test is stopped.
Further, in step S5, if the four-way valve of the air conditioning system is successfully switched, the air conditioning system can be switched from the heating mode to the cooling mode, and thus the coil temperature T22 is detected to determine whether the air conditioning system is normally switched to the cooling mode, specifically, when T22 is greater than or equal to T20+ X, the air conditioning system is determined to be qualified.
S6, a refrigeration detection stage: obtaining the current refrigeration operation parameter of the air conditioning system after the continuous operation for the rated time T2, and comparing the current refrigeration operation parameter with the rated refrigeration parameter range corresponding to the current environment temperature T1, wherein if the refrigeration operation parameter is within the rated refrigeration parameter range, the judgment is qualified; on the other hand, if the requirement is not satisfied, the self-test is determined to be not satisfactory, and the corresponding test failure code P6 is displayed immediately after the self-test is stopped.
Further, in step S6, the cooling operation parameters of the present embodiment include any one or more of a high pressure, a low pressure, a discharge temperature and an operation current, wherein for convenience of description, the cooling operation parameters include a high pressure, a low pressure and a temperatureExhaust temperature and operating current. The system is divided into a plurality of refrigeration temperature levels based on the ambient temperature T1 in advance, each refrigeration temperature level corresponds to one ambient temperature T1, and each refrigeration temperature level is correspondingly provided with a plurality of rated heating parameter ranges corresponding to various heating operation parameters, namely, in the Nth refrigeration temperature level, the corresponding high-pressure range is hN1-hN2Low pressure range of qN1-qN2Exhaust temperature range of gN1-gN2Running current of rN1-rN2Therefore, the four operation parameters are correspondingly compared with the rated heating parameter range, and when all the refrigeration operation parameters are in the corresponding refrigeration parameter range, the refrigeration detection stage is judged to be qualified; and otherwise, when any refrigeration operation parameter is not in the corresponding refrigeration parameter range, judging that the refrigeration detection stage is unqualified.
After the air conditioning system finishes the initial stage, the temperature sensor initial detection stage, the temperature sensor re-detection stage, the heating detection stage, the four-way valve detection stage and the refrigeration detection stage in sequence, the air conditioning system is judged to be finished with self-checking and is a qualified product.
The rated time t1, the first coil temperature value N, the first exhaust temperature M, the second coil temperature value X, and the rated time t2 are manually set according to actual product specifications and actual production requirements, and specific numbers are not limited herein and may be determined by actual requirements.
The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to limit the present invention in any way. Those skilled in the art can make many changes, modifications, and equivalents to the embodiments of the invention without departing from the scope of the invention as set forth in the claims below. Therefore, equivalent changes made according to the spirit of the present invention should be covered within the protection scope of the present invention without departing from the contents of the technical scheme of the present invention.
Claims (10)
1. A self-checking method of an air conditioning system is characterized in that: the method comprises the steps of taking the current environment temperature T1 as a reference, conducting primary inspection on a temperature sensor of the air conditioning system to be qualified, then conducting recheck on the temperature sensor based on the coil pipe temperature and the exhaust temperature, conducting rated heating verification based on heating operation parameters in a heating mode after the recheck is qualified, conducting rated refrigerating verification based on refrigerating operation parameters in a refrigerating mode after the rated heating verification is qualified, and judging the air conditioning system to be a qualified product when the rated refrigerating verification is qualified.
2. The self-test method of an air conditioning system according to claim 1, wherein: the self-checking method comprises the following steps:
s1, an initial stage: acquiring the current ambient temperature T1, and powering on an air conditioning system;
s2, a temperature sensor initial detection stage: detecting the temperature by a temperature sensor of the air conditioning system, calculating the difference between the detected initial detection temperature value a and the environment temperature T1, judging that the temperature is qualified if the difference is smaller than the requirement of a rated deviation value, and entering the step S3;
s3, a temperature sensor rechecking stage: firstly, detecting and recording an initial coil temperature T20 and an initial exhaust temperature Tp0 of the heat exchanger, then continuously operating the air conditioning system in a heating mode for a rated time T1, and detecting and recording a real-time coil temperature T21 and a real-time exhaust temperature Tp1 of the heat exchanger again, wherein if the requirements that the difference between the initial coil temperature T20 and the real-time coil temperature T21 is higher than a rated first coil temperature value N and the difference between the real-time exhaust temperature Tp1 and the initial exhaust temperature Tp0 is not smaller than an undetermined first exhaust temperature M are met, the heat exchanger is judged to be qualified, and the step S4 is carried out;
s4, heating detection stage: acquiring the current heating operation parameter of the air conditioning system after the continuous operation rated time T1, and comparing the current heating operation parameter with the rated heating parameter range corresponding to the current environment temperature T1, wherein if the heating operation parameter is within the rated heating parameter range, the judgment is qualified, and the step S5 is carried out;
s5, a four-way valve detection stage: the air conditioning system is switched from a heating mode to a cooling mode to operate, and after the air conditioning system continuously operates for a rated time T2, the real-time coil temperature T22 of the heat exchanger is detected and recorded, wherein if the difference between the real-time coil temperature T22 and the initial coil temperature T20 is higher than a rated second coil temperature value X, the judgment is qualified, and the step S6 is entered;
s6, a refrigeration detection stage: obtaining the current refrigeration operation parameter of the air conditioning system after the continuous operation for the rated time T2, and comparing the current refrigeration operation parameter with the rated refrigeration parameter range corresponding to the current environment temperature T1, wherein if the refrigeration operation parameter is within the rated refrigeration parameter range, the judgment is qualified;
and finally judging the air conditioning system which finishes the detection stage of the six steps as a qualified product.
3. The self-checking method of an air conditioning system according to claim 2, wherein: the heating operation parameters include any one or more of high pressure, low pressure, exhaust temperature, and operation current.
4. The self-test method of an air conditioning system according to claim 3, wherein: dividing the heating temperature into a plurality of heating temperature levels based on the environment temperature T1, wherein each heating temperature level is provided with a plurality of rated heating parameter ranges corresponding to all heating operation parameters, and when all the heating operation parameters are in the corresponding heating parameter ranges, judging that the heating detection stage is qualified; and otherwise, when any one heating operation parameter is not in the corresponding heating parameter range, judging that the heating detection stage is unqualified.
5. The self-checking method of an air conditioning system according to claim 4, wherein: each heating temperature stage corresponds to an ambient temperature T1.
6. The self-checking method of an air conditioning system according to claim 2, wherein: the refrigeration operating parameter includes any one or more of a high pressure, a low pressure, a discharge temperature, and an operating current.
7. The self-test method of an air conditioning system according to claim 6, wherein: dividing the air conditioner into a plurality of refrigeration temperature levels based on the ambient temperature T1, wherein each refrigeration temperature level is set with a plurality of rated refrigeration parameter ranges corresponding to various refrigeration operation parameters, and when the various refrigeration operation parameters are in the corresponding refrigeration parameter ranges, judging that the refrigeration detection stage is qualified; and otherwise, when any refrigeration operation parameter is not in the corresponding refrigeration parameter range, judging that the refrigeration detection stage is unqualified.
8. The self-checking method of an air conditioning system according to claim 2, wherein: in steps S2 to S6, when any one of the steps does not satisfy the corresponding requirement, the step is determined to be a failure and the self-inspection is immediately stopped.
9. The self-test method of an air conditioning system according to claim 8, wherein: when any step stops self-checking due to failure, the nixie tube displays the corresponding detection fault code.
10. The self-checking method of an air conditioning system according to claim 2, wherein: in step S2, based on the rated deviation values a and B corresponding to the environmental temperature T1 and the preliminary inspection temperature a, respectively, when the environmental temperature T1 is greater than or equal to the preliminary inspection temperature a, the difference between the environmental temperature T1 and the preliminary inspection temperature a is greater than or equal to the rated deviation value a, and the result is determined to be qualified; and when the environmental temperature T1 is less than the initial detection temperature a, the difference between the initial detection temperature a and the environmental temperature T1 is greater than or equal to the rated deviation value B, and the judgment is qualified.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283871A (en) * | 2020-10-30 | 2021-01-29 | 海信（山东）空调有限公司 | Air conditioner self-checking method and multi-connected air conditioner |
| CN112665109A (en) * | 2020-12-02 | 2021-04-16 | 珠海格力电器股份有限公司 | Self-checking method and device of air conditioning unit and air conditioning system |
| CN112880166A (en) * | 2021-02-20 | 2021-06-01 | 珠海格力电器股份有限公司 | Automatic setting method and device for temperature controller and temperature controller |
| CN113587374A (en) * | 2021-07-28 | 2021-11-02 | 珠海格力电器股份有限公司 | Self-checking method and device of refrigeration equipment and refrigeration equipment |
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