CN104251533B - Heat recycling type air conditioning unit and composite running mode control method thereof - Google Patents
Heat recycling type air conditioning unit and composite running mode control method thereof Download PDFInfo
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- CN104251533B CN104251533B CN201310261356.6A CN201310261356A CN104251533B CN 104251533 B CN104251533 B CN 104251533B CN 201310261356 A CN201310261356 A CN 201310261356A CN 104251533 B CN104251533 B CN 104251533B
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Abstract
The invention discloses a composite running mode control method of a heat recycling type air conditioning unit. The composite running mode control method comprises the following steps of setting a preferential running status to determine a status switching range; detecting water temperature values of an air conditioning side and a hot water side of the heat recycling type air conditioning unit; determining startup and shutdown requirements of the air conditioning side and the hot water side according to the preset startup and shutdown conditions and the detected water temperature values; switching the running status of the heat recycling type air conditioning unit in the status switching range according to the determined startup and shutdown requirements. According to the composite running mode control method, no matter which running status the air conditioning unit runs, the air conditioning unit always meets requirements of a priority state, which are defined by the user, when the application requirements corresponding to the priority state completely meet shutdown of the air conditioning unit, setting and switching of the composite running mode of the air conditioning unit are human-friendly and reasonable, and waste of energy is reduced; automatic switching of the running status is implemented, and complexity for switching is reduced. The invention further discloses the heat recycling type air conditioning unit applying the control method.
Description
Technical field
The application is related to air conditioner controlling technology field, more particularly, to a kind of recovery type heat air-conditioner set and its combined running mould
Formula control method.
Background technology
The common operational mode of recovery type heat air-conditioner set has five kinds, including three kinds of single-modes（I.e. refrigeration mode, heat
Pattern and heat aqueous mode）With two kinds of composite modes（Freeze and heat aqueous mode and heat and heat aqueous mode）.Air conditioner
Group, under composite mode, occurs multiple running statuses according to load variations.Existing air-conditioner set can only be according to air-conditioning side and warm
The startup-shutdown demand of water side selects to run in multiple running statuses, and cannot be actually needed selective operation in conjunction with user.
For example refrigeration and heat under aqueous mode, in air-conditioner set actual moving process, according to load variations occur as
Lower three kinds of running statuses：Refrigerating state, heat water state, freeze and heat water state.Existing air-conditioner set can only be according to refrigeration
Startup-shutdown demand and water heating startup-shutdown demand select running status.But during practical application, because of due to weather high temperature,
Lead to user's initial stage for the demand that the demand freezed is higher than water heating, and according to existing control method, air-conditioner set can only
According to startup-shutdown demand modeling current operating conditions, then may result in air-conditioner set be constantly in heat water state run, and
Do not have precedence over refrigerating state to run to meet the demand of user, therefore, the control method of prior art lacks flexibility it is impossible to true
Just meeting the demand of user.
Content of the invention
In view of this, the application purpose is to provide a kind of recovery type heat air-conditioner set and its combined running Schema control side
Method, to solve the problems, such as that existing control method is dumb it is impossible to really meet the demand of user.
For achieving the above object, the application provides following technical scheme：
A kind of recovery type heat air-conditioner set combined running mode control method, including：
Preferential running status is set, to determine state switching scope；
Detect the air-conditioning side of described recovery type heat air-conditioner set and the water temperature value of hot water side；
Switching on and shutting down condition according to default described air-conditioning side and hot water side and the described water temperature value detecting, determine air-conditioning
The switching on and shutting down demand of side and hot water side；
Switching on and shutting down demand according to described determination switches described recovery type heat air-conditioner set in the range of described state switches
Running status.
Preferably, described switching on and shutting down condition includes air-conditioning side turn-on temperature setting value T1, air-conditioning side shutoff temperature setting value
T2, hot water side turn-on temperature setting value TR1With hot water side shutoff temperature setting value TR2；Wherein T1＞ T2, TR1<TR2；
The water temperature value of described detection air-conditioning side and hot water side includes detecting one or more of following water temperature value：Air-conditioning side
Inflow temperature value Tin, air-conditioning side leaving water temperature value Tout, hot water side inflow temperature value TRin, hot water side leaving water temperature value TRout, plus
Boiler temperature value Ttank.
Preferably, the water temperature value detecting described in described basis and described switching on and shutting down condition, determine air-conditioning side and hot water side
Switching on and shutting down demand, concrete grammar is：
If described hot water side inflow temperature value and heating water tank temperature value set no more than described hot water side turn-on temperature
Value is it is determined that hot water side has water heating start demand；
If described hot water side leaving water temperature value is not less than hot water side shutoff temperature setting value, or described heating water tank temperature value
Not less than hot water side shutoff temperature setting value it is determined that hot water side has water heating shutdown demand；
If described air-conditioning side inflow temperature value is not less than described air-conditioning side turn-on temperature setting value it is determined that there is system air-conditioning side
Cold boot demand；
If air-conditioning side leaving water temperature value is not more than described air-conditioning side shutoff temperature setting value it is determined that air-conditioning side has refrigeration to close
Machine demand.
Preferably, described combined running pattern be refrigeration and heat aqueous mode, described refrigeration and heat aqueous mode include make
Cold state, heat water state and refrigeration and heat water state.
Preferably, the preferential running status of described setting, to determine state switching scope, including：
Arranging described preferential running status is refrigerating state, determine described state switching scope be refrigerating state and refrigeration and
Heat water state；
Arranging described preferential running status is to heat water state, determines that described state switching scope is to heat water state and system
Cold and heat water state.
Preferably, when described preferential running status is refrigerating state, the described switching on and shutting down demand according to described determination exists
Switch the running status of described recovery type heat air-conditioner set in the range of described state switching, including：
When the switching on and shutting down demand of described determination includes freezing start demand and water heating shutdown demand, by described recuperation of heat
The running status of type air-conditioner set switches to refrigerating state；
When the switching on and shutting down demand of described determination includes freezing start demand and water heating start demand simultaneously, by described heat
The running status of reclaiming type air-conditioner set switches to refrigeration and heats water state；
When the switching on and shutting down demand of described determination includes freezing shutdown demand, described recovery type heat air-conditioner set is shut down.
Preferably, when preferential running status is to heat water state, the described switching on and shutting down demand according to described determination is described
Switch the running status of described recovery type heat air-conditioner set in the range of state switching, including：
When the switching on and shutting down demand of described determination includes water heating start demand and refrigeration shutdown demand, by described recuperation of heat
The running status of type air-conditioner set switches to and heats water state；
When the switching on and shutting down demand of described determination includes freezing start demand and water heating start demand simultaneously, by described heat
The running status of reclaiming type air-conditioner set switches to refrigeration and heats water state；
When the switching on and shutting down demand of described determination includes water heating shutdown demand, described recovery type heat air-conditioner set is stopped
Machine.
Preferably, described switching on and shutting down condition also includes hot water temperature's setting value TR, hot water side turn-on temperature error set point
△ T1 and hot water side shutoff temperature error set point △ T2；Wherein, TR1=TR- △ T1, TR2=TR+△T2.
A kind of recovery type heat air-conditioner set, controls running status according to any of the above-described kind of combined running mode control method
Switching.
It can be seen from above-mentioned technical scheme that, the application passes through to arrange preferential running status under combined running pattern,
Can the actual demand according to user automatically switch over it is achieved that no between two kinds of running statuses under combined running pattern
By run which kind of running status, unit meets the demand of the priority status of user's setting all the time, so that air-conditioner set is combined fortune
The setting of row mode and switch hommization, possess reasonability, decreases the waste of the energy；Meanwhile, need not be by sky during switching state
Adjust compressor emergency shutdown it is achieved that the automatic switchover of running status, and decrease the number of changeable running status, reduce switching
Complexity.
Brief description
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of application, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
The recovery type heat air-conditioner set combined running mode control method flow chart that Fig. 1 provides for the embodiment of the present application one；
Fig. 2（a）The master of the recovery type heat air-conditioner set combined running mode control method providing for the embodiment of the present application two
Flow chart；
Fig. 2（b）Make in the recovery type heat air-conditioner set combined running mode control method providing for the embodiment of the present application two
The preferential control flow chart of cold state；
Fig. 2（c）Make in the recovery type heat air-conditioner set combined running mode control method providing for the embodiment of the present application two
The preferential control flow chart of hot water conditions.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out clear, complete
Site preparation describes it is clear that described embodiment is only some embodiments of the present application, rather than whole embodiments.It is based on
Embodiment in the application, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of the application protection.
The embodiment of the present application discloses a kind of recovery type heat air-conditioner set combined running mode control method, existing to solve
Control method dumb it is impossible to really meet the problem of the demand of user.
The recovery type heat air-conditioner set combined running mode control method providing with reference to Fig. 1, the embodiment of the present application one, including
Following steps：
S101：Preferential running status is set, to determine state switching scope；
S102：Detect the air-conditioning side of described recovery type heat air-conditioner set and the water temperature value of hot water side；
S103：Switching on and shutting down condition according to default described air-conditioning side and hot water side and the water temperature value detecting, determine empty
Adjust the switching on and shutting down demand of side and hot water side；
S104：Switching on and shutting down demand according to described determination switches described recovery type heat air-conditioning in the range of described state switches
The running status of unit.
From said method step, by arranging preferential running status, the embodiment of the present application determines that state switches scope,
Preferentially meet the demand of user, make the setting of air-conditioner set combined running pattern and switch hommization, possess reasonability, decrease
The waste of the energy；Meanwhile, air-conditioner set need not be shut down it is achieved that the automatic switchover of running status during switching state, and reduce
The number of changeable running status, reduces the complexity of switching.
With reference to Fig. 2（a）～Fig. 2（c）, the embodiment of the present application two provides another kind of recovery type heat air-conditioner set combined running
Mode control method, comprises the steps：
S210：Preferential running status is set, to determine state switching scope；
When described combined running pattern is to freeze and heat aqueous mode, the possible running status of air-conditioner set includes freezing
State, heat water state and refrigeration and heat water state.Above-mentioned preferential running status could be arranged to refrigerating state or heats
Water state.
If current application situation requires air-conditioner set preferentially to meet refrigeration demand（When as higher in summer environment temperature）, can set
Putting preferential running status is refrigeration priority status, and corresponding state switching scope includes refrigerating state and refrigeration and heats watery
State.
If current application situation requires air-conditioner set preferentially to meet water heating demand（When as larger in hot water usage amount）, can set
Putting preferential running status is water heating priority status；Corresponding state switching scope includes heating water state and refrigeration and water heating
State.
Seen from the above description, according to practical application request, preferential running status is set, to determine state switching scope bag
Include following two situations：
1）Arranging described preferential running status is refrigeration priority status, determine described state switching scope be refrigerating state and
Freeze and heat water state；
2）Arranging described preferential running status is water heating priority status, determines that described state switching scope is watery for heating
State and refrigeration and heat water state.
When being applied to air-conditioner set, corresponding human-computer interaction interface can be set up in the control system of air-conditioner set, use
Family can arrange the preferential running status under combined running pattern according to current application demand.
S220：The water temperature value of detection air-conditioning side and hot water side respectively；
Specifically, the water temperature value of detection is needed to include：Air-conditioning side inflow temperature value Tin, air-conditioning side leaving water temperature value Tout, heat
Water side inflow temperature value TRin, hot water side leaving water temperature value TRout, heating water tank temperature value Ttank.General, Tin＞ Tout、TRin
<TRout.
S230：Switching on and shutting down condition according to default described air-conditioning side and hot water side and the described water temperature value detecting, really
Determine the switching on and shutting down demand of air-conditioning side and hot water side；
Specifically, above-mentioned switching on and shutting down condition includes following setting value：Air-conditioning side turn-on temperature setting value T1, air-conditioning side shutdown
Desired temperature T2, hot water side turn-on temperature setting value TR1With hot water side shutoff temperature setting value TR2；Wherein T1＞ T2, TR1<
TR2.
When hot water side inflow temperature value TRinWith heating water tank temperature value TtankNo more than hot water side turn-on temperature setting value
TR1（I.e. TRin≤TR1And Ttank≤TR1）When, determine that hot water side has water heating start demand；
When hot water side leaving water temperature value TRoutNot less than hot water side shutoff temperature setting value TR2, or heating water tank temperature value
TtankNot less than hot water side shutoff temperature setting value TR2（I.e. TRout≥TR2Or Ttank≥TR2）When it is determined that hot water side heats
Water shutdown demand；
When air-conditioning side inflow temperature value TinNot less than air-conditioning side turn-on temperature setting value T1（I.e. Tin≥T1）When, determine air-conditioning
There is refrigeration start demand side；
When air-conditioning side leaving water temperature value ToutIt is not more than air-conditioning side shutoff temperature setting value T2（I.e. Tout≤T2）When, determine empty
Side is adjusted to have refrigeration shutdown demand.
S240：Judge whether preferential running status is refrigeration priority status, if it is, execution step S241, otherwise hold
Row step S250；
S241：Judge in the switching on and shutting down demand determining in step S230, whether have refrigeration start demand and water heating to close simultaneously
Machine demand, if it is, execution step S242, otherwise execution step S243；
S242：The running status of setting air-conditioner set is refrigerating state, and this secondary control terminates, return to step S220；
S243：Judge in the switching on and shutting down demand determining in step S230, whether have refrigeration start demand and water heating to open simultaneously
Machine demand, if it is, execution step S244, otherwise execution step S245；
S244：The running status of setting air-conditioner set is refrigeration and heats water state, this secondary control terminates, return to step
S220；
S245：If there being refrigeration shutdown demand in the switching on and shutting down demand determining in step S230, air-conditioner set is shut down simultaneously
Return to step S220, otherwise direct return to step S220；
S250：Judge in the switching on and shutting down demand determining in step S230, whether have water heating demand and refrigeration shutdown to need simultaneously
Ask, if it is, execution step S251, otherwise execution step S252；
S251：The running status of setting air-conditioner set is to heat water state, and this secondary control terminates, return to step S220；
S252：Judge in the switching on and shutting down demand determining in step S230, whether have refrigeration start demand and water heating to open simultaneously
Machine demand, if it is, execution step S253, otherwise execution step S254；
S253：The running status of setting air-conditioner set is refrigeration and heats water state, this secondary control terminates, return to step
S220；
S254：If there being water heating shutdown demand in the switching on and shutting down demand determining in step S230, air-conditioner set is shut down
And return to step S220, otherwise direct return to step S220.
From said method step, the embodiment of the present application, according to practical situations, preferential running status is set as
Refrigeration priority status or water heating priority status, so that it is determined that corresponding state switching scope；And then according to the water temperature detecting
Value and default switching on and shutting down condition determine the switching on and shutting down demand of air-conditioning side and hot water side, and select the state switching model of above-mentioned determination
A kind of current operating conditions as air-conditioner set corresponding with this switching on and shutting down demand in enclosing, should if first running status is corresponding
It is shutdown demand with demand, then air-conditioner set is shut down.For example, under refrigeration priority status, if air-conditioner set has refrigeration start
Demand and water heating shutdown demand, then unit operation refrigerating state, if air-conditioner set has refrigeration start demand and water heating start
Demand, then unit operation freeze and heat water state, if air-conditioner set have refrigeration shutdown demand and water heating start demand, machine
Group is shut down, as long as during need satisfaction condition that is, corresponding to priority status, air-conditioner set shuts down.Therefore, the embodiment of the present application
Preferential running status need to be set under combined running pattern, you can under combined running pattern, the actual demand according to user is automatic
Which kind of switch over it is achieved that no matter run running status between two kinds of running statuses, unit meets user's setting all the time
The demand of priority status, so that the setting of air-conditioner set combined running pattern and switch hommization, possess reasonability；When preferential
Air-conditioning compressor emergency shutdown when the corresponding application demand of state fully meets, decreases the waste of the energy；Meanwhile, need not during switching state
Air-conditioner set is shut down it is achieved that the automatic switchover of running status, and reduces the complexity of switching.
For improving the degree of accuracy judging switching on and shutting down demand further, for above-mentioned, when certain timing period（As 5 seconds or
10 seconds）Interior, during the switching on and shutting down demand all same of air-conditioner set that step S230 determines, just execute subsequent step, if this time period
Interior, the switching on and shutting down demand of the air-conditioner set that step S230 determines is not quite similar, then restart timing and in the new timing period
Inside carry out redefining the switching on and shutting down demand of air-conditioner set.
In addition, in above-described embodiment, switching on and shutting down condition may also include following setting value：Hot water temperature's setting value TR, hot water
Side turn-on temperature error set point △ T1 and hot water side shutoff temperature error set point △ T2.This three and hot water side turn-on temperature
Setting value TR1With hot water side shutoff temperature setting value TR2Relation be：TR1=TR- △ T1, TR2=TR+△T2.Therefore, setting is opened
During cut-off condition, the value that can pass through TR, △ T1 and △ T2 can be directly set, then be calculated TR1And TR2, also can directly arrange
TR1And TR2Value.
Accordingly, the embodiment of the present application additionally provides a kind of recovery type heat air-conditioner set, this recovery type heat air-conditioner set root
Control the automatic switchover of the running status under combined running pattern according to the method described in embodiment one or embodiment two, only need to arrange
Preferential running status under combined running pattern, you can the actual demand according to user is automatically at two kinds under combined running pattern
Which kind of switch over it is achieved that no matter be in running status between running status, unit meets the preferential shape of user's setting all the time
The demand of state, so that the setting of air-conditioner set combined running pattern and switch hommization, possess reasonability；When priority status pair
Air-conditioning compressor emergency shutdown when the application demand answered fully meets, decreases the waste of the energy；And achieve automatically cutting of running status
Change, reduce the complexity of switching.
One of ordinary skill in the art will appreciate that realizing all or part of flow process in above-described embodiment method, it is permissible
Instruct related hardware to complete by computer program, described program can be stored in a computer read/write memory medium
In, described program is upon execution, it may include as the flow process of the embodiment of above-mentioned each method.Wherein, described storage medium can be
Magnetic disc, CD, read-only memory（Read-Only Memory, ROM）Or random access memory（Random Access
Memory, RAM）Deng.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the application.
Multiple modifications to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can be realized in the case of without departing from spirit herein or scope in other embodiments.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and be to fit to and principles disclosed herein and features of novelty phase one
The scope the widest causing.
Claims (7)
1. a kind of recovery type heat air-conditioner set combined running mode control method is it is characterised in that include：
Under combined running pattern, preferential running status is set, to determine state switching scope；
Detect the air-conditioning side of described recovery type heat air-conditioner set and the water temperature value of hot water side；
Switching on and shutting down condition according to default described air-conditioning side and hot water side and the described water temperature value detecting, determine air-conditioning side and
The switching on and shutting down demand of hot water side；
Switching on and shutting down demand according to described determination switches the fortune of described recovery type heat air-conditioner set in the range of described state switches
Row state；
Wherein, when described preferential running status is refrigerating state, the described switching on and shutting down demand according to described determination is in described shape
Switch the running status of described recovery type heat air-conditioner set in the range of state switching, including：
When the switching on and shutting down demand of described determination includes freezing start demand and water heating shutdown demand, described recovery type heat is empty
The running status adjusting unit switches to refrigerating state；When the switching on and shutting down demand of described determination includes freeze start demand and system simultaneously
During hot water start demand, the running status of described recovery type heat air-conditioner set is switched to refrigeration and heats water state；When described
When the switching on and shutting down demand determining includes refrigeration shutdown demand, described recovery type heat air-conditioner set is shut down；
When described preferential running status is to heat water state, the described switching on and shutting down demand according to described determination is cut in described state
Switch the running status of described recovery type heat air-conditioner set in the range of changing, including：
When the switching on and shutting down demand of described determination includes water heating start demand and refrigeration shutdown demand, described recovery type heat is empty
The running status of tune unit switches to and heats water state；When described determination switching on and shutting down demand simultaneously include freeze start demand and
During water heating start demand, the running status of described recovery type heat air-conditioner set is switched to refrigeration and heats water state；Work as institute
State determination switching on and shutting down demand include water heating shutdown demand when, by described recovery type heat air-conditioner set shut down.
2. method according to claim 1 is it is characterised in that described switching on and shutting down condition includes the turn-on temperature setting of air-conditioning side
Value T1, air-conditioning side shutoff temperature setting value T2, hot water side turn-on temperature setting value TR1With hot water side shutoff temperature setting value TR2；
Wherein T1＞ T2, TR1<TR2；
The water temperature value of described detection air-conditioning side and hot water side includes detecting one or more of following water temperature value：Air-conditioning side intakes
Temperature value Tin, air-conditioning side leaving water temperature value Tout, hot water side inflow temperature value TRin, hot water side leaving water temperature value TRout, heating water
Case temperature value Ttank.
3. method according to claim 2 is it is characterised in that the water temperature value that detects described in described basis and described switch
Machine condition, determines the switching on and shutting down demand of air-conditioning side and hot water side, and concrete grammar is：
If described hot water side inflow temperature value and heating water tank temperature value are no more than described hot water side turn-on temperature setting value,
Determine that hot water side has water heating start demand；
If described hot water side leaving water temperature value is not less than hot water side shutoff temperature setting value, or described heating water tank temperature value is not little
In hot water side shutoff temperature setting value it is determined that hot water side has water heating shutdown demand；
If described air-conditioning side inflow temperature value is not less than described air-conditioning side turn-on temperature setting value it is determined that air-conditioning side has refrigeration to open
Machine demand；
If air-conditioning side leaving water temperature value is not more than described air-conditioning side shutoff temperature setting value it is determined that air-conditioning side has refrigeration shutdown to need
Ask.
4. the method according to any one of claims 1 to 3 is it is characterised in that described combined running pattern is refrigeration and makes
Hot-water mode, under the described aqueous mode that freezes and heat, the running status of described recovery type heat air-conditioner set include refrigerating state,
Heat water state and refrigeration and heat water state.
5. method according to claim 4 is it is characterised in that the preferential running status of described setting, to determine that state switches
Scope, including：
Arranging described preferential running status is refrigerating state, determines that described state switching scope is refrigerating state and refrigeration and heats
Water state；
Arranging described preferential running status is to heat water state, determine described state switching scope be heat water state and refrigeration and
Heat water state.
6. method according to claim 2 is it is characterised in that described switching on and shutting down condition also includes hot water temperature's setting value
TR, hot water side turn-on temperature error set point △ T1 and hot water side shutoff temperature error set point △ T2；Wherein, TR1=TR- △
T1, TR2=TR+ △ T2.
7. a kind of recovery type heat air-conditioner set is it is characterised in that according to the combined running as described in any one of claim 1～6
Mode control method controls the switching of running status.
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| CN201310261356.6A CN104251533B (en) | 2013-06-26 | 2013-06-26 | Heat recycling type air conditioning unit and composite running mode control method thereof |
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| CN201310261356.6A CN104251533B (en) | 2013-06-26 | 2013-06-26 | Heat recycling type air conditioning unit and composite running mode control method thereof |
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| CN104792058B (en) * | 2015-04-28 | 2017-06-13 | 广东美的暖通设备有限公司 | A kind of three-pipe heating and reclaiming air-conditioning system control method and air-conditioning system |
| CN106322823A (en) * | 2015-06-23 | 2017-01-11 | 约克广州空调冷冻设备有限公司 | Control method of multifunctional air conditioner water heater unit and controller of multifunctional air conditioner water heater unit |
| CN109974254A (en) * | 2019-03-21 | 2019-07-05 | 陈碧贤 | Air Conditioning energy water heater runs program integrated control and hot water method for controlling priority |
| CN113124531A (en) * | 2019-12-30 | 2021-07-16 | 青岛海尔空调电子有限公司 | Control method for automatically switching operation modes of water chilling unit |
| CN111426100B (en) * | 2020-04-20 | 2021-08-24 | 珠海格力电器股份有限公司 | Automatic refrigeration heat recovery control method and device and multi-split complete machine equipment |
| CN111692637B (en) * | 2020-06-18 | 2021-08-20 | 广东美的制冷设备有限公司 | Control method, control device, air conditioning system, and computer-readable storage medium |
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| CN101694321A (en) * | 2009-10-19 | 2010-04-14 | 深圳市艾苏威尔科技发展有限公司 | Method and system for controlling energy saving of communication base station air-conditioner and communication base station air-conditioner |
| CN102095294A (en) * | 2009-12-11 | 2011-06-15 | 珠海格力电器股份有限公司 | Heat reclamation module unit, air-conditioning unit and control method |
| CN102116515A (en) * | 2009-12-31 | 2011-07-06 | 珠海格力电器股份有限公司 | Intelligent control method of refrigerating and heating recovery mode of air conditioning unit |
| CN102679482A (en) * | 2012-05-25 | 2012-09-19 | 宁波奥克斯空调有限公司 | Heat recovery multiplex system based on variable-frequency air conditioner and control method thereof |
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