CN105486164A - Cleaning control method for indoor heat exchanger of air conditioner and air conditioner - Google Patents
Cleaning control method for indoor heat exchanger of air conditioner and air conditioner Download PDFInfo
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- CN105486164A CN105486164A CN201610072840.8A CN201610072840A CN105486164A CN 105486164 A CN105486164 A CN 105486164A CN 201610072840 A CN201610072840 A CN 201610072840A CN 105486164 A CN105486164 A CN 105486164A
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- air
- heat exchanger
- conditioner
- mode
- indoor heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G13/00—Appliances or processes not covered by groups F28G1/00 - F28G11/00; Combinations of appliances or processes covered by groups F28G1/00 - F28G11/00
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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
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/081—Air-flow control members, e.g. louvres, grilles, flaps or guide plates for guiding air around a curve
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a cleaning control method for an indoor heat exchanger of an air conditioner. The cleaning control method includes the steps that when the air conditioner gets into the automatic cleaning mode, the refrigeration mode is started; evaporating temperature is reduced to enable water in air to be condensed into frost or thin ice on the indoor heat exchanger; after the air conditioner continuously runs in the refrigeration mode for set refrigeration time, the running mode of the air conditioner is switched to the heating mode from the refrigeration mode so that the frost or the thin ice on the heat exchanger can be thawed to clean the heat exchanger. The invention further discloses the air conditioner. By means of the cleaning control method and the air conditioner, automatic cleaning of the indoor heat exchanger of the air conditioner can be achieved, and therefore it can be avoided that the heat exchange efficiency of the heat exchanger is reduced.
Description
Technical field
The present invention relates to air-conditioning equipment field, particularly relate to cleaning control method and the air-conditioner of indoor heat exchanger for air conditioner.
Background technology
In air-conditioner use procedure, indoor heat exchanger (evaporimeter) surface easily attract dust, and air-conditioning heat exchange efficiency after constantly accumulating, will be caused to decline, and then affect the performance of air-conditioner, thus need clean to avoid heat exchanger heat exchange efficiency to decline to the surface of indoor heat exchanger and have influence on the performance of air-conditioner.But the installation site due to air-conditioner is general all higher and dismounting inconvenient, is therefore artificially cleaned then more difficult by user.
Summary of the invention
Main purpose of the present invention is the cleaning control method and the air-conditioner that provide a kind of indoor heat exchanger for air conditioner, is intended to the technical problem solving the automated cleaning how realized indoor heat exchanger for air conditioner.
For achieving the above object, the cleaning control method of indoor heat exchanger for air conditioner of the present invention, the cleaning control method of described indoor heat exchanger for air conditioner comprises:
When air-conditioner enters automated cleaning pattern, open refrigeration mode;
Reduce evaporating temperature, on indoor heat exchanger, condense into frost or thin ice to make moisture in air;
After running the cooling time of setting in a chiller mode continuously, the operational mode of air-conditioner is switched to heating mode by refrigeration mode, melt for clean heat exchanger to make the frost on heat exchanger or thin ice.
Preferably, by turning the air outlet angle of wind deflector down and reducing air-out wind speed to reduce evaporating temperature.
Preferably, described when air-conditioner enters automated cleaning pattern, open refrigeration mode and comprise: when air-conditioner enters automated cleaning pattern, open refrigeration mode and the air outlet angle of wind deflector be adjusted to minimum air outlet angle and be minimum wind shelves by air rate adjustment;
After the cooling time of described operation setting continuously in a chiller mode, heating mode is switched to comprise by refrigeration mode the operational mode of air-conditioner: after running the cooling time of setting in a chiller mode continuously, the operational mode of air-conditioner is switched to heating mode by refrigeration mode and keeps the minimum air outlet angle of wind deflector constant and close chamber's inner blower.
Preferably, after the cooling time of described operation setting continuously in a chiller mode, comprise after the operational mode of air-conditioner is switched to heating mode by refrigeration mode:
When the time that heats or heat exchanger coils temperature of running setting in a heating mode continuously reach design temperature, exit automated cleaning pattern.
Preferably, describedly also to comprise when opening refrigeration mode: close the low-temperature protection function of indoor heat exchanger.
Further, for achieving the above object, the present invention also provides a kind of air-conditioner, and described air-conditioner comprises: indoor heat exchanger, indoor fan, wind deflector and control module, and described control module is used for:
When air-conditioner enters automated cleaning pattern, open refrigeration mode;
Reduce evaporating temperature, on indoor heat exchanger, condense into frost or thin ice to make moisture in air;
After the cooling time running setting in a chiller mode continuously, the operational mode of air-conditioner is switched to heating mode by refrigeration mode, melt for clean heat exchanger to make the frost on heat exchanger or thin ice.
Preferably, described control module also for: by turning the air outlet angle of wind deflector down and reducing air-out wind speed to reduce evaporating temperature.
Preferably, described control module also for: when opening refrigeration mode, the air outlet angle of wind deflector being adjusted to minimum air outlet angle and being minimum wind shelves by air rate adjustment; When opening heating mode, keep the minimum air outlet angle of wind deflector constant and close chamber's inner blower.
Preferably, described control module also for:
When the time that heats or heat exchanger coils temperature of running setting in a heating mode continuously reach design temperature, exit automated cleaning pattern.
Preferably, described control module also for: when opening refrigeration mode, close the low-temperature protection function of indoor heat exchanger.
The present invention is by condense the moisture in indoor heat exchanger surrounding air on heat exchangers and form white or thin ice thus incorporate in the frost or thin ice condensed into by dust, impurity, and then will the frost that has dust, impurity be incorporated or thin ice melt and flow in drip tray, thus realize the automatic cleaning to indoor heat exchanger surface dirt, impurity.In addition, by reducing evaporating temperature, thus make more water that heat exchanger surface condenses, and then expand the dust on heat exchanger surface, the clean scope of impurity and corresponding raising cleaning capacity.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of cleaning control method first embodiment of indoor heat exchanger for air conditioner of the present invention;
Fig. 2 is the schematic flow sheet of cleaning control method second embodiment of indoor heat exchanger for air conditioner of the present invention;
Fig. 3 is the high-level schematic functional block diagram of air-conditioner one embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
With reference to the schematic flow sheet that Fig. 1, Fig. 1 are cleaning control method first embodiment of indoor heat exchanger for air conditioner of the present invention.In the present embodiment, the cleaning control method of described indoor heat exchanger for air conditioner comprises:
Step S10, when air-conditioner enters automated cleaning pattern, opens refrigeration mode;
In the present embodiment, the mode entering automated cleaning pattern is not limit, specifically arranges according to actual needs.Such as, user sends command adapted thereto by the automated cleaning mode button be arranged on air-conditioning remote control and enters automated cleaning pattern, or enter automated cleaning pattern by air-conditioner according to time set or when reaching setting threshold value according to present air humidity, and in the present embodiment, air-conditioner can realize the automated cleaning process to indoor heat exchanger surface dirt, impurity etc. under automated cleaning pattern.
In the present embodiment, forming the characteristic of water based on the condensation of water vapor in air chance, therefore, when entering automated cleaning pattern, needing first to open refrigeration mode, thus realize the moisture (steam) in heat exchanger surface surrounding air to condense into water.Be understandable that, the dust of heat exchanger surface, impurity etc. can be dissolved in water by water to a certain extent that condense into.
Step S20, reduces evaporating temperature, condenses into frost or thin ice to make moisture in air on indoor heat exchanger;
In the present embodiment, evaporating temperature enters the temperature of the coolant media in heat exchanger (being also evaporimeter) coil pipe under specifically referring to refrigeration mode.Evaporating temperature is lower, then ability moisture in air being condensed into water is also stronger, also namely also more in the condensate water of heat exchanger surface generation, and further condensate water can be condensed into frost or thin ice.Be understandable that, the frost that heat exchanger surface produces or thin ice can tightly pin the dust be adsorbed on heat exchanger surface, impurity etc., thus promote automated cleaning ability further.
In the present embodiment, for promoting the cleaning capacity of the dust, impurity etc. on heat exchanger surface further, thus the more water that condenses is needed, and water is affected by gravity and may can runs off, therefore, in the present embodiment, after entering refrigeration mode, need by reducing evaporating temperature further, thus acceleration moisture in air condenses into frost or thin ice on heat exchangers.In the present embodiment, the mode reducing evaporating temperature is not limit, such as, by the height regulating the aperture of heating power expansion valve (or choke valve) to regulate low pressure, expansion valve open degree is large, and evaporating temperature raises, low pressure also raises, and then refrigerating capacity will increase; Expansion valve open degree is little, and evaporating temperature reduces, and low pressure also reduces, and refrigerating capacity will reduce.
Optionally, by turning the air outlet angle of wind deflector down and reducing air-out wind speed for reduction evaporating temperature.The mode reducing evaporating temperature in prior art is a lot, such as, directly improve the operating frequency of compressor, but this not only will expend more electric energy, and compressor high-frequency work also can produce the noise of high-decibel simultaneously.Therefore, in this embodiment, especially by turning the air outlet angle of wind deflector down and reducing air-out wind speed, thus reduce coolant media heat exchanger effectiveness (minimizing loss of refrigeration capacity) in heat exchanger coils to a certain extent, and then indirectly realize reducing evaporating temperature.
Further alternative, automated cleaning pattern is entered and while opening refrigeration mode at air-conditioner, the air outlet angle of wind deflector is adjusted to minimum air outlet angle and is minimum wind shelves by air rate adjustment, thus reduce evaporating temperature to greatest extent, to accelerate the condensation of moisture in air, also can accelerate the decrease speed of heat exchanger surface temperature simultaneously, and then make the water of condensation condense into frost or thin ice further fast.
Step S30, after running the cooling time of setting in a chiller mode continuously, switches to heating mode by the operational mode of air-conditioner by refrigeration mode, melts for clean heat exchanger to make the frost on heat exchanger or thin ice.
Namely in the present embodiment, run the cooling time of setting continuously at refrigeration mode after, when also the frost that condenses of heat exchanger surface or thin ice acquire a certain degree, refrigeration mode is switched to heating mode, to start to carry out defrost process.
In the present embodiment, the set-up mode of cooling time is not limit, such as, be set to 5 minutes, or arranges the empirical value of best cooling time by test situation.
Be understandable that, the little water droplet formed after slow defrost can't produce larger scouring force under gravity, therefore in the present embodiment, optionally, by adjusting the air outlet angle of wind deflector and corresponding air-out wind speed, thus accelerate the thawing of frost or the thin ice that heat exchanger condenses, and then form large water droplet cleans heat exchanger surface dust, impurity etc. with larger scouring force, and the water after melting is flowed in drip tray, the set-up mode for drip tray in the present embodiment is not limit.
Optionally, after running the cooling time of setting in a chiller mode continuously, while the operational mode of air-conditioner is switched to heating mode by refrigeration mode, keep the minimum air outlet angle of wind deflector constant and close chamber's inner blower.In this embodiment, by continuing to keep the minimum air outlet angle of wind deflector constant and close chamber's inner blower, thus reduce coolant media heat exchanger effectiveness (minimizing thermal loss) in heat exchanger coils to a certain extent, and then the temperature of heat exchanger can be made progressively to rise to accelerate the thawing of frost on heat exchanger or thin ice fast.
In the present embodiment, the setting for the condition exiting automated cleaning pattern is not limit, and specifically arranges according to actual needs.In the present embodiment, inner moist breed bacteria is caused due to defrost after shutting down for avoiding air-conditioner, therefore optional, when the time that heats or heat exchanger coils temperature of running setting in a heating mode continuously reach design temperature, exit automated cleaning pattern, thus to ensure the drying of heat exchanger surface under the exit criteria of setting.
In the present embodiment, by the moisture in indoor heat exchanger surrounding air being condensed on heat exchangers and forming frost or thin ice thus incorporate in the frost or thin ice condensed into by dust, impurity, and then will the frost that has dust, impurity be incorporated or thin ice melt and flow in drip tray, thus realize the automatic cleaning to indoor heat exchanger surface dirt, impurity.In addition, by reducing evaporating temperature, thus make more water that heat exchanger surface condenses, and then expand the dust on heat exchanger surface, the clean scope of impurity and corresponding raising cleaning capacity.
With reference to the schematic flow sheet that Fig. 2, Fig. 2 are cleaning control method second embodiment of indoor heat exchanger for air conditioner of the present invention.Based on above-described embodiment, in the present embodiment, comprise after above-mentioned steps S10:
Step S40, closes the low-temperature protection function of indoor heat exchanger.
In the present embodiment, for promoting the cleaning effect to indoor heat exchanger, therefore, in cooling mode, need realize from air, condense more steam by reducing evaporating temperature and form water and water is condensed into frost or thin ice further, therefore, the temperature sharply reducing heat exchanger surface is needed.Considering that general domestic air conditioning all has low-temperature protection function (temperature that also namely avoids evaporating too low and frosting), therefore, when entering automated cleaning pattern, when opening refrigeration mode, needing the low-temperature protection function of closing indoor heat exchanger.
With reference to the high-level schematic functional block diagram that Fig. 3, Fig. 3 are air-conditioner one embodiment of the present invention.In the present embodiment, described air-conditioner comprises: indoor heat exchanger 10, indoor fan 20, wind deflector 30 and control module 40, described control module 40 for: when air-conditioner enters automated cleaning pattern, open refrigeration mode;
In the present embodiment, the mode entering automated cleaning pattern is not limit, specifically arranges according to actual needs.Such as, user sends command adapted thereto by the automated cleaning mode button be arranged on air-conditioning remote control and enters automated cleaning pattern, or enter automated cleaning pattern by air-conditioner according to time set or when reaching setting threshold value according to present air humidity, and in the present embodiment, air-conditioner can realize the automated cleaning process to indoor heat exchanger 10 surface dirt, impurity etc. under automated cleaning pattern.
In the present embodiment, the characteristic of water is formed, therefore, when entering automated cleaning pattern based on the condensation of water vapor in air chance, control module 40 first opens refrigeration mode, thus realizes the moisture (steam) in heat exchanger surface surrounding air to condense into water.Be understandable that, the dust of heat exchanger surface, impurity etc. can be dissolved in water by water to a certain extent that condense into.
Described control module 40 also for: reduce evaporating temperature, on indoor heat exchanger 10, condense into frost or thin ice to make moisture in air;
In the present embodiment, evaporating temperature enters the temperature of the coolant media in heat exchanger (being also evaporimeter) coil pipe under specifically referring to refrigeration mode.Evaporating temperature is lower, then ability moisture in air being condensed into water is also stronger, also namely also more in the condensate water of heat exchanger surface generation, and further condensate water can be condensed into frost or thin ice.Be understandable that, the frost that heat exchanger surface produces or thin ice can tightly pin the dust be adsorbed on heat exchanger surface, impurity etc., thus promote automated cleaning ability further.
In the present embodiment, for promoting the cleaning capacity of the dust, impurity etc. on heat exchanger surface further, thus the more water that condenses is needed, and water is affected by gravity and may can runs off, therefore, in the present embodiment, after entering refrigeration mode, reduce evaporating temperature further by control module 40, thus acceleration moisture in air condenses into frost or thin ice on heat exchangers.In the present embodiment, the mode reducing evaporating temperature is not limit, such as, by the height regulating the aperture of heating power expansion valve (or choke valve) to regulate low pressure, expansion valve open degree is large, and evaporating temperature raises, low pressure also raises, and then refrigerating capacity will increase; Expansion valve open degree is little, and evaporating temperature reduces, and low pressure also reduces, and refrigerating capacity will reduce.
Optionally, described control module 40 also for: by turning the air outlet angle of wind deflector 30 down and reducing air-out wind speed for reduction evaporating temperature.The mode reducing evaporating temperature in prior art is a lot, such as, directly improve the operating frequency of compressor, but this not only will expend more electric energy, and compressor high-frequency work also can produce the noise of high-decibel simultaneously.Therefore, in this embodiment, especially by turning the air outlet angle of wind deflector 30 down and reducing air-out wind speed, thus reduce coolant media heat exchanger effectiveness (minimizing loss of refrigeration capacity) in heat exchanger coils to a certain extent, and then indirectly realize reducing evaporating temperature.
Further alternative, described control module 40 also for: open refrigeration mode time, the air outlet angle of wind deflector 30 is adjusted to minimum air outlet angle and is minimum wind shelves by air rate adjustment, thus reduce evaporating temperature to greatest extent, to accelerate the condensation of moisture in air, also can accelerate the decrease speed of heat exchanger surface temperature simultaneously, and then make the water of condensation condense into frost or thin ice further fast.
Described control module 40 also for: after the cooling time running continuously setting in a chiller mode, the operational mode of air-conditioner is switched to heating mode by refrigeration mode, melts for clean heat exchanger to make the frost on heat exchanger or thin ice.
Namely in the present embodiment, run the cooling time of setting continuously at refrigeration mode after, when also the frost that condenses of heat exchanger surface or thin ice acquire a certain degree, by control module 40, refrigeration mode is switched to heating mode, to start to carry out defrost process.In the present embodiment, the set-up mode of cooling time is not limit, such as, be set to 5 minutes, or arranges the empirical value of best cooling time by test situation.
Be understandable that, the little water droplet formed after slow defrost can't produce larger scouring force under gravity, therefore in the present embodiment, the air outlet angle of wind deflector 30 and corresponding air-out wind speed is adjusted by control module 40, thus the thawing of the frost that acceleration heat exchanger condenses or thin ice, and then form large water droplet cleans heat exchanger surface dust, impurity etc. with larger scouring force, and the water after melting is flowed in drip tray, the set-up mode for drip tray in the present embodiment is not limit.
Optionally, described control module 40 also for: when opening heating mode, keep wind deflector 30 minimum air outlet angle constant and close chamber's inner blower 20.In this embodiment, by continuing to keep the minimum air outlet angle of wind deflector 30 constant and close chamber's inner blower 20, thus reduce coolant media heat exchanger effectiveness (minimizing thermal loss) in heat exchanger coils to a certain extent, and then the temperature of heat exchanger can be made progressively to rise to accelerate the thawing of frost on heat exchanger or thin ice fast.
In the present embodiment, the setting for the condition exiting automated cleaning pattern is not limit, and specifically arranges according to actual needs.In the present embodiment, inner moist breed bacteria is caused due to defrost after shutting down for avoiding air-conditioner, therefore, optionally, described control module 40 also for: when the time that heats or heat exchanger coils temperature of running continuously setting in a heating mode reach design temperature, exit automated cleaning pattern, thus to ensure the drying of heat exchanger surface under the exit criteria of setting.
Be understandable that, in the present embodiment, air-conditioner can also comprise the parts such as coil pipe, drip tray.
In the present embodiment, by the moisture in indoor heat exchanger 10 surrounding air being condensed on heat exchangers and forming frost or thin ice thus incorporate in the frost or thin ice condensed into by dust, impurity, and then will the frost that has dust, impurity be incorporated or thin ice melt and flow in drip tray, thus realize the automatic cleaning to indoor heat exchanger 10 surface dirt, impurity.In addition, by reducing evaporating temperature, thus make more water that heat exchanger surface condenses, and then expand the dust on heat exchanger surface, the clean scope of impurity and corresponding raising cleaning capacity.
Further alternative, based on above-described embodiment, in another embodiment of air-conditioner of the present invention, described control module 40 also for: when opening refrigeration mode, close the low-temperature protection function of indoor heat exchanger 10.
In the present embodiment, for promoting the cleaning effect to indoor heat exchanger 10, therefore, in cooling mode, need realize from air, condense more steam by reducing evaporating temperature and form water and water is condensed into frost or thin ice further, therefore, the temperature sharply reducing heat exchanger surface is needed.Consider that general domestic air conditioning all has low-temperature protection function (temperature that also namely avoids evaporating too low and frosting); therefore; when entering automated cleaning pattern, when opening refrigeration mode, closed the low-temperature protection function of indoor heat exchanger 10 by control module 40.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a cleaning control method for indoor heat exchanger for air conditioner, is characterized in that, the cleaning control method of described indoor heat exchanger for air conditioner comprises:
When air-conditioner enters automated cleaning pattern, open refrigeration mode;
Reduce evaporating temperature, on indoor heat exchanger, condense into frost or thin ice to make moisture in air;
After running the cooling time of setting in a chiller mode continuously, the operational mode of air-conditioner is switched to heating mode by refrigeration mode, melt for clean heat exchanger to make the frost on heat exchanger or thin ice.
2. the cleaning control method of indoor heat exchanger for air conditioner as claimed in claim 1, is characterized in that, by turning the air outlet angle of wind deflector down and reducing air-out wind speed to reduce evaporating temperature.
3. the cleaning control method of indoor heat exchanger for air conditioner as claimed in claim 2, it is characterized in that, it is described when air-conditioner enters automated cleaning pattern, unlatching refrigeration mode comprises: when air-conditioner enters automated cleaning pattern, opens refrigeration mode and the air outlet angle of wind deflector is adjusted to minimum air outlet angle and is minimum wind shelves by air rate adjustment;
After the cooling time of described operation setting continuously in a chiller mode, heating mode is switched to comprise by refrigeration mode the operational mode of air-conditioner: after running the cooling time of setting in a chiller mode continuously, the operational mode of air-conditioner is switched to heating mode by refrigeration mode and keeps the minimum air outlet angle of wind deflector constant and close chamber's inner blower.
4. the cleaning control method of the indoor heat exchanger for air conditioner according to any one of claim 1-3, it is characterized in that, after the cooling time of described operation setting continuously in a chiller mode, comprise after the operational mode of air-conditioner is switched to heating mode by refrigeration mode:
When the time that heats or heat exchanger coils temperature of running setting in a heating mode continuously reach design temperature, exit automated cleaning pattern.
5. the cleaning control method of indoor heat exchanger for air conditioner as claimed in claim 4, is characterized in that, describedly also comprises when opening refrigeration mode: the low-temperature protection function of closing indoor heat exchanger.
6. an air-conditioner, is characterized in that, described air-conditioner comprises indoor heat exchanger, indoor fan, wind deflector and control module, and described control module is used for:
When air-conditioner enters automated cleaning pattern, open refrigeration mode;
Reduce evaporating temperature, on indoor heat exchanger, condense into frost or thin ice to make moisture in air;
After the cooling time running setting in a chiller mode continuously, the operational mode of air-conditioner is switched to heating mode by refrigeration mode, melt for clean heat exchanger to make the frost on heat exchanger or thin ice.
7. air-conditioner as claimed in claim 6, is characterized in that, described control module also for: by turning the air outlet angle of wind deflector down and reducing air-out wind speed to reduce evaporating temperature.
8. air-conditioner as claimed in claim 7, is characterized in that, described control module also for: when opening refrigeration mode, the air outlet angle of wind deflector being adjusted to minimum air outlet angle and being minimum wind shelves by air rate adjustment; When opening heating mode, keep the minimum air outlet angle of wind deflector constant and close chamber's inner blower.
9. the air-conditioner according to any one of claim 6-8, is characterized in that, described control module also for:
When the time that heats or heat exchanger coils temperature of running setting in a heating mode continuously reach design temperature, exit automated cleaning pattern.
10. air-conditioner as claimed in claim 9, is characterized in that, described control module also for:
When opening refrigeration mode, close the low-temperature protection function of indoor heat exchanger.
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Application publication date: 20160413 |