CN113701361B - Starting method and device of water heater and water heater - Google Patents
Starting method and device of water heater and water heater Download PDFInfo
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- CN113701361B CN113701361B CN202111039965.8A CN202111039965A CN113701361B CN 113701361 B CN113701361 B CN 113701361B CN 202111039965 A CN202111039965 A CN 202111039965A CN 113701361 B CN113701361 B CN 113701361B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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Abstract
The invention discloses a starting method and a starting device of a water heater and the water heater, wherein the starting method of the water heater comprises the following steps: acquiring an operation mode of the water heater; when the running mode of the water heater is a common mode, determining a starting water flow threshold value of the water heater according to the water flow in the historical running process of the water heater; acquiring the current water flow of the water heater; and when the current water flow is larger than or equal to the starting water flow threshold, starting the water heater. The problem of false startup caused by cold water startup of the zero-cold-water gas water heater adopting a two-pipe water path installation mode can be solved, and the embodiment of the invention does not need to change optimized installation conditions and a one-way valve structure, so that the improvement cost is low.
Description
Technical Field
The invention relates to the technical field of electrical equipment, in particular to a starting method and device of a water heater and the water heater.
Background
At present, zero-cold-water gas water heaters on the market mostly adopt a two-pipe water way installation mode (without an independent water return pipe), use a cold water pipe as a water return pipe, and need to set a one-way valve at a water point of a far end to communicate a hot water pipe and the cold water pipe during actual installation to form an effective circulation loop. The conduction direction of the one-way valve is hot water flowing to cold water, so that cold water is prevented from flowing into the hot water pipe in series, and the requirement of normal bathing hot water is ensured. After the preheating function is started, a circulating pump arranged in the water heater operates to drive circulating water of the hot water pipe and the cold water pipe to flow, a water flow signal is generated to meet the requirement of minimum starting water flow, the water heater is ignited and heated to preheat the circulating water, and the hot water can be started and used without waiting.
The minimum starting water flow of the existing zero-cold water gas water heater adopting a two-pipe water channel installation mode in a common mode and a preheating mode is the same, and is generally 2.5L/min or 3L/min. When a user uses cold water, particularly when a cold water tap close to the check valve is opened, part of the hot water is diverted from the hot water pipeline into the cold water pipe due to the change of the instantaneous pressure difference at the check valve. When the split flow of hot water reaches the minimum starting water flow of the water heater, the false starting of the zero-cold-water gas water heater can be caused.
With the increase of the user's reserves of the zero-cold-water gas water heater, the quality complaints about the false start of the two-pipe water paths of the zero-cold-water gas water heater caused by cold water start gradually increase, and the problem is urgently needed to be solved in the heat industry. Some solutions have also been proposed for the industry researchers, such as: the water pressure of the one-way valve is increased to reduce the hot water flow rate, and a flow limiting device or an adjustable valve core is added at the cold water end of the one-way valve to control the cold water flow rate so as to indirectly reduce the hot water flow rate. However, the above solutions are optimized and improved from the installation method and structure, the requirements for processing the check valve are higher, and obvious disadvantages such as cold water flow limitation or influence on circulating preheating flow exist.
Disclosure of Invention
In view of this, embodiments of the present invention provide a starting method and apparatus for a water heater, and a water heater, so as to solve the problem of false startup of a zero-cold-water gas water heater adopting a two-pipe water channel installation manner due to cold water boiling.
According to a first aspect, an embodiment of the present invention provides a starting method of a water heater, including: acquiring an operation mode of the water heater; when the operation mode of the water heater is a common mode, determining a starting water flow threshold value of the water heater according to the water flow in the historical operation process of the water heater; acquiring the current water flow of the water heater; and when the current water flow is larger than or equal to the starting water flow threshold, starting the water heater.
According to the water heater starting method provided by the embodiment of the invention, in a common mode, the starting water flow threshold of the water heater is determined according to the water flow in the historical operation process of the water heater, and when the current water flow is larger than or equal to the starting water flow threshold, the water heater is started, so that the minimum starting water flow of the water heater is determined according to the water flow condition of a household water heater of a user instead of 2.5L/min or 3L/min in the prior art, namely the starting water flow threshold of the water heater is determined according to the water flow in the historical operation process of the water heater, and therefore, the problem of false start of the zero-cold-water gas water heater adopting a two-pipe water channel installation mode due to cold water boiling can be solved, in addition, the optimized installation condition and the one-way valve structure do not need to be changed, and the improvement cost is low.
With reference to the first aspect, in a first embodiment of the first aspect, the starting method of the water heater further includes: when the current water flow is smaller than the starting water flow threshold but larger than or equal to a preset first starting water flow, adjusting the starting water flow threshold downwards according to a preset speed until the starting water flow threshold is smaller than the current water flow or the starting water flow threshold is adjusted to the first starting water flow.
With reference to the first aspect, in a second embodiment of the first aspect, the starting method of the water heater further includes: when the operation mode of the water heater is a preheating mode, acquiring the current water flow of the water heater; and when the current water flow is more than or equal to the preset second starting water flow, starting the water heater.
With reference to the first aspect, in a third implementation manner of the first aspect, the determining the threshold value of the start-up water flow rate of the water heater according to the water flow rate during the historical operation of the water heater includes: acquiring water flow of the water heater at each moment in the historical operation process; determining the average water flow of a plurality of time periods in the historical operation process according to the water flow of each moment in the historical operation process; calculating a startup water flow threshold for the water heater from the average water flow over the plurality of time periods.
With reference to the third embodiment of the first aspect, in the fourth embodiment of the first aspect, calculating the start-up water flow threshold of the water heater according to the average water flow of the plurality of time periods includes: selecting a minimum value among the average water flows for the plurality of time periods; and calculating a starting water flow threshold value of the water heater by using the minimum value and a preset coefficient ratio.
According to a second aspect, an embodiment of the present invention further provides a starting apparatus for a water heater, including a first obtaining module, a processing module, a second obtaining module and a starting module, where the first obtaining module is configured to obtain an operation mode of the water heater; when the operation mode of the water heater is a common mode, the processing module is used for determining a starting water flow threshold value of the water heater according to the water flow in the historical operation process of the water heater; the second acquisition module is used for acquiring the current water flow of the water heater; and when the current water flow is greater than or equal to the starting water flow threshold, the starting module is used for starting the water heater.
According to a third aspect, embodiments of the present invention also provide a water heater, the hot water pipe including a flow sensor, a memory, and a processor; the flow sensor is arranged in a water flow pipeline of the water heater; the flow sensor, the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to perform the method for starting the water heater according to the first aspect or any one of the embodiments of the first aspect.
With reference to the third aspect, in a first embodiment of the third aspect, the water heater further comprises a pressure sensor adapted to detect water pressure, the pressure sensor, the memory and the processor being communicatively coupled to each other.
With reference to the third aspect, in the first embodiment of the third aspect, the water heater is a zero-cold-water heater using a cold water pipe as a return pipe.
According to a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium storing computer instructions for causing a computer to execute the method for starting a water heater described in the first aspect or any one of the implementation manners of the first aspect.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:
FIG. 1 is a schematic flow chart illustrating a method for starting a water heater according to embodiment 1 of the present invention;
FIG. 2 is a schematic flow chart illustrating a method for starting a water heater according to embodiment 2 of the present invention;
FIG. 3 is a schematic view of the control principle of the water heater according to embodiment 2 of the present invention;
FIG. 4 is a schematic flow chart showing a method for starting up a water heater according to embodiment 3 of the present invention;
fig. 5 is a schematic structural view of a water heater starting device in embodiment 4 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The embodiment 1 of the invention provides a starting method of a water heater. Fig. 1 is a schematic flow chart of a method for starting a water heater according to embodiment 1 of the present invention, and as shown in fig. 1, the method for starting a water heater according to embodiment 1 of the present invention includes the following steps:
s101: and acquiring the running mode of the water heater.
Specifically, the operation modes of the water heater comprise a preheating mode and a common mode. The preheating mode refers to a mode that the outlet water is zero cold water, namely, the water remained in the water pipe of the water heater is preheated before the outlet water. Specifically, in a preheating mode, a cold water pipe is used as a water return pipe, a check valve is arranged at a water consumption point at the far end to communicate the hot water pipe and the cold water pipe, an effective circulation loop is formed, a circulating pump arranged in the water heater operates to drive circulating water of the hot water pipe and the cold water pipe to flow, a water flow signal is generated to meet the requirement of minimum starting water flow, the circulating water is preheated by igniting and heating the water heater, and hot water can be started and used without waiting. The common mode is other modes except the preheating mode in the water heater.
S102: and when the running mode of the water heater is a common mode, determining a starting water flow threshold value of the water heater according to the water flow in the historical running process of the water heater.
As a specific implementation manner, the following technical scheme may be adopted to determine the starting water flow threshold of the water heater according to the water flow in the historical operation process of the water heater: acquiring water flow of the water heater at each moment in the historical operation process; determining the average water flow of a plurality of time periods in the historical operation process according to the water flow at each moment in the historical operation process; calculating a starting water flow threshold of the water heater according to the average water flow of the plurality of time periods.
In embodiment 1 of the present invention, the historical operation process may be the last operation process or the previous operation processes, and since the last operation process is closest to the current operation process, it is more accurate to determine the threshold value of the start-up water flow rate according to the last operation process.
Further, the following technical scheme can be adopted for calculating the starting water flow threshold of the water heater according to the average water flow of the plurality of time periods: selecting a minimum value among the average water flows for the plurality of time periods; and calculating a starting water flow threshold value of the water heater by using the minimum value and a preset coefficient ratio. Specifically, the minimum value and a preset coefficient ratio may be multiplied to obtain a starting water flow rate threshold of the water heater.
Illustratively, in the historical operation process of the water heater, the flow sensor synchronously acquires water flow signals and feeds the water flow signals back to the controller in the whole water using process, the controller storage operation chip performs operation on the acquired water flow signals, and the operation is performed according to a relational expression an = A multiplied by bn-1 (n is more than or equal to 2), wherein an is a starting water flow threshold of the water heater; a is a coefficient ratio, which is 0.8 in this example; bn-1 is the minimum value of the mean water flow Qn-1 during time t of the previous run, where t is 5 seconds in this example.
The relation and default values in embodiment 1 of the present invention can be adjusted according to actual situations, for example, a can be 0.5, 0.6, 0.7, etc. The default minimum starting water flow can be 2L/min, 3.5L/min and the like except 2.5L/min and 3L/min.
S103: and acquiring the current water flow of the water heater.
Specifically, the current water flow of the water heater can be obtained by using a flow sensor installed in the water heater.
S104: and when the current water flow is larger than or equal to the starting water flow threshold, starting the water heater.
That is to say, when the current water flow is greater than the threshold value of the starting water flow, it can be considered that the current water flow is generated by hot water used by a user, and is not generated by hot water diversion caused by cold water opening, so that the false start phenomenon caused by hot water diversion caused by cold water opening can be avoided.
For example, when the water pressure of the household of the user is proper, the water flow is about 8-12L/min, and the hot water flow is about 3-5L/min when cold water is used. For example, when the user uses the hot water once at home, the average hot water flow rate is about 10-11L/min within any 5 seconds, and the water flow rate is the same as that of the last hot water use. Under the water flow, when a user uses cold water, the hot water flow is about 3-5L/min, and the minimum starting water flow of a common zero-cold water gas water heater is about 2.5-3L/min, which obviously causes the false starting of the water heater. For the gas water heater using the water heater starting method in embodiment 1 of the present invention, bn-1= (Qn-1) min =10, an =0.8 × 10=8 (L/min), and 8L/min is significantly greater than the hot water split flow rate 3 to 5L/min caused by using cold water, so that the water heater cannot be started by mistake; and the value of the water flow is less than the minimum water flow 10L/min for practical use of a user home, and the normal starting of the water heater in a common mode can be ensured.
Therefore, in the water heater starting method provided by embodiment 1 of the present invention, in a common mode, the starting water flow threshold of the water heater is determined according to the water flow in the historical operation process of the water heater, and when the current water flow is greater than or equal to the starting water flow threshold, the water heater is started, so that the minimum starting water flow of the water heater is determined according to the water flow condition of the household water heater of a user instead of 2.5L/min or 3L/min in the prior art, that is, the starting water flow threshold of the water heater is determined according to the water flow in the historical operation process of the water heater, and thus the problem of false startup caused by cold water opening of the zero-cold-water gas water heater adopting the two-pipe water-path installation manner can be solved. In addition, in the embodiment 1 of the invention, the optimized installation condition and the structure of the check valve are not required to be changed, and the improvement cost is low.
Example 2
The embodiment 2 of the invention provides a starting method of a water heater. Fig. 2 is a schematic flow chart of a method for starting a water heater according to embodiment 2 of the present invention, and fig. 3 is a schematic control diagram of a water heater according to embodiment 2 of the present invention, and as shown in fig. 2 and fig. 3, the method for starting a water heater according to embodiment 2 of the present invention includes the following steps:
s201: and acquiring the running mode of the water heater.
As in embodiment 1 of the present invention, the operation modes of the water heater include a preheating mode and a normal mode. The preheating mode refers to a mode that the outlet water is zero cold water, namely, the water remained in the water pipe of the water heater is preheated before the outlet water. The common mode is other modes except the preheating mode in the water heater.
S202: when the running mode of the water heater is a common mode, determining a starting water flow threshold value of the water heater according to the water flow in the historical running process of the water heater; acquiring the current water flow of the water heater; and when the current water flow is larger than or equal to the starting water flow threshold, starting the water heater.
That is, when the operation mode of the water heater is the normal mode, the threshold value of the startup water flow rate is used as the minimum startup water flow rate of the water heater.
Relevant content of step S202 in embodiment 2 of the present invention is the same as steps S102 to S104 in embodiment 1 of the present invention, and is not described herein again.
S203: when the operation mode of the water heater is a preheating mode, acquiring the current water flow of the water heater; and when the current water flow is more than or equal to the preset second starting water flow, starting the water heater.
Specifically, the second start-up water flow rate may be a minimum start-up water flow rate of the zero-cold-water gas water heater, such as 2.5L/min or 3L/min. That is, when the operation mode of the water heater is the preheating mode, the minimum startup water flow of the water heater is maintained.
Therefore, different minimum startup starting water flows are respectively adopted in the normal mode and the preheating mode; according to the actual water flow of user's house water route under the common mode, calculate the start water flow threshold value through the relation, when guaranteeing that current discharge is greater than the discharge that causes the reposition of redundant personnel of hot water when user's in-service use cold water, normally start the water heater. In the preheating mode, because the problem of false startup caused by cold water startup does not exist, the minimum startup water flow of the water heater can be maintained unchanged, namely, the minimum startup water flow is still 2.5L/min or 3L/min. Therefore, when the zero-cold-water gas water heater is installed by adopting two pipes, the problem of false starting of the water heater caused by cold water is effectively solved.
Example 3
Embodiment 3 of the invention provides a starting method of a water heater. Fig. 4 is a schematic flow chart of a method for starting a water heater according to embodiment 3 of the present invention, and as shown in fig. 4, the method for starting a water heater according to embodiment 3 of the present invention includes the following steps:
s301: and acquiring the running mode of the water heater.
S302: and when the running mode of the water heater is a common mode, determining a starting water flow threshold value of the water heater according to the water flow in the historical running process of the water heater.
S303: and acquiring the current water flow of the water heater.
S304: and when the current water flow is larger than or equal to the starting water flow threshold, starting the water heater.
The details of steps S301 to S304 in embodiment 3 of the present invention may be understood by referring to the relevant descriptions and effects corresponding to steps S101 to S104 in embodiment 1 of the present invention, which are not described herein again.
S305: when the current water flow is smaller than the starting water flow threshold but larger than or equal to a preset first starting water flow, adjusting the starting water flow threshold downwards according to a preset speed until the starting water flow threshold is smaller than the current water flow or the starting water flow threshold is adjusted to the first starting water flow.
For example, the startup water flow threshold may be reduced by 10% every 3S.
This is because, when the water pressure of the user is low, the total water flow is small, which is less than about 8L/min, the hot water split flow is also small, and the water heater is not easy to be started by mistake. In order to prevent the situation that the water heater is difficult to start up due to a high numerical value obtained after an = a × bn-1 (n ≧ 2) calculation, in embodiment 3 of the present invention, logic is added, that when the current water flow is smaller than the start-up water flow threshold but greater than or equal to a preset first start-up water flow, the start-up water flow threshold is adjusted downward at a preset rate until the start-up water flow threshold is smaller than the current water flow or the start-up water flow threshold is adjusted to the first start-up water flow, so that the water heater can be guaranteed to be started up normally even when the water pressure of the home of a user is low.
Example 4
Corresponding to embodiments 1 to 3 of the present invention, embodiment 4 of the present invention provides a starting apparatus for a water heater. Fig. 5 is a schematic structural diagram of a water heater starting device in embodiment 4 of the present invention, and as shown in fig. 5, the water heater starting device in embodiment 4 of the present invention includes a first obtaining module 20, a processing module 21, a second obtaining module 22, and a starting module 23.
Specifically, the first obtaining module 20 is configured to obtain an operation mode of the water heater;
the processing module 21 is configured to determine a starting water flow threshold of the water heater according to the water flow in the historical operation process of the water heater when the operation mode of the water heater is a normal mode;
the second obtaining module 22 is used for obtaining the current water flow of the water heater;
and the starting module 23 is used for starting the water heater when the current water flow is greater than or equal to the starting water flow threshold.
Further, the starting device of the water heater also comprises a third obtaining module 24. When the current water flow is smaller than the starting water flow threshold but greater than or equal to a preset first starting water flow, the third obtaining module 24 is further configured to obtain a current water pressure of the water heater, and when the current water pressure is smaller than a preset pressure threshold, the starting module 23 is further configured to start the water heater.
Further, when the operation mode of the water heater is the preheating mode, the second obtaining module 22 is further configured to obtain the current water flow of the water heater; when the current water flow is greater than or equal to a preset second startup water flow, the starting module 23 is further configured to start the water heater.
The details of the starting device for a water heater can be understood by referring to the corresponding related descriptions and effects in the embodiments shown in fig. 1 to fig. 4, which are not described herein again.
Example 5
Embodiments of the present invention also provide a water heater, which may include a processor and a memory, wherein the processor and the memory may be connected by a bus or other means.
The processor may be a Central Processing Unit (CPU). The Processor may also be other general purpose Processor, digital Signal Processor (DSP), application Specific Integrated Circuit (ASIC), field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, or a combination thereof.
The memory, which is a non-transitory computer-readable storage medium, may be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as program instructions/modules corresponding to the key shielding method of the in-vehicle display device in the embodiment of the present invention (for example, the first obtaining module 20, the processing module 21, the second obtaining module 22, and the starting module 23 shown in fig. 4). The processor executes various functional applications and data processing of the processor by running the non-transitory software programs, instructions and modules stored in the memory, that is, the water heater starting method in the above method embodiment is realized.
The memory may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor, and the like. Further, the memory may include high speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory located remotely from the processor, and such remote memory may be coupled to the processor via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The one or more modules are stored in the memory and, when executed by the processor, perform the water heater startup method of the embodiment shown in fig. 1-4.
The details of the water heater can be understood by referring to the corresponding descriptions and effects of the embodiment shown in fig. 1 to 5, which are not described herein again.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (7)
1. A method of starting a water heater, comprising:
acquiring an operation mode of the water heater;
when the operation mode of the water heater is a common mode, determining a starting water flow threshold value of the water heater according to the water flow in the historical operation process of the water heater;
acquiring the current water flow of the water heater;
when the current water flow is larger than or equal to the starting water flow threshold, starting the water heater;
when the current water flow is smaller than the starting water flow threshold but larger than or equal to a preset first starting water flow, adjusting the starting water flow threshold downwards at a preset speed until the starting water flow threshold is smaller than the current water flow or the starting water flow threshold is adjusted to the first starting water flow;
the determining the starting water flow threshold of the water heater according to the water flow in the historical operation process of the water heater comprises the following steps:
acquiring water flow of the water heater at each moment in a historical operation process;
determining the average water flow of a plurality of time periods in the historical operation process according to the water flow at each moment in the historical operation process;
calculating a start-up water flow threshold of the water heater according to the average water flow of the plurality of time periods;
calculating a startup water flow threshold for the water heater from the average water flow for the plurality of time periods comprises:
selecting a minimum value among the average water flow rates for the plurality of time periods;
and calculating a starting water flow threshold value of the water heater by using the minimum value and a preset coefficient ratio.
2. The method of claim 1, further comprising:
when the operation mode of the water heater is a preheating mode, acquiring the current water flow of the water heater;
and when the current water flow is more than or equal to the preset second starting water flow, starting the water heater.
3. A starting device for a water heater, comprising:
the first acquisition module is used for acquiring the operation mode of the water heater;
the processing module is used for determining a starting water flow threshold value of the water heater according to the water flow in the historical operation process of the water heater when the operation mode of the water heater is a common mode;
the second acquisition module is used for acquiring the current water flow of the water heater;
the starting module is used for starting the water heater when the current water flow is larger than or equal to the starting water flow threshold;
the processing module is further configured to, when the current water flow is smaller than the starting water flow threshold but greater than or equal to a preset first starting water flow, adjust the starting water flow threshold downward at a preset rate until the starting water flow threshold is smaller than the current water flow or adjust the starting water flow threshold to the first starting water flow;
the processing module is specifically configured to: acquiring water flow of the water heater at each moment in a historical operation process; determining the average water flow of a plurality of time periods in the historical operation process according to the water flow at each moment in the historical operation process; selecting a minimum value among the average water flow rates for the plurality of time periods; and calculating a starting water flow threshold value of the water heater by using the minimum value and a preset coefficient ratio.
4. A water heater, comprising:
a flow sensor disposed in a water flow line of the water heater;
a memory and a processor, the flow sensor, the memory and the processor being communicatively connected to each other, the memory having stored therein computer instructions, the processor executing the computer instructions to perform the method of starting a water heater according to any one of claims 1-2.
5. The water heater of claim 4, further comprising a pressure sensor adapted to sense water pressure, the pressure sensor, the memory and the processor being communicatively coupled to each other.
6. The water heater of claim 4, wherein the water heater is a zero cold water heater using a cold water pipe as a return pipe.
7. A computer-readable storage medium characterized in that it stores computer instructions for causing the computer to perform the method of starting a water heater according to any one of claims 1-2.
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| CN110806012B (en) * | 2019-11-08 | 2023-12-19 | 华帝股份有限公司 | Control method of zero-cooling water gas water heater and zero-cooling water gas water heater |
| CN110940097B (en) * | 2019-12-16 | 2021-10-12 | 华帝股份有限公司 | Control method for self-adaptive starting ignition of gas water heater |
| CN111981694B (en) * | 2020-07-21 | 2023-07-25 | 华帝股份有限公司 | Control method and system for gas water heater |
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