KR20180005013A - Method and apparatus for heating load control of boiler - Google Patents

Abstract

Disclosed are a method for controlling a heat quantity of a boiler and an apparatus therefor. The method for controlling a heat quantity of a boiler by a heat control apparatus according to one embodiment of the present invention comprises: a step of obtaining an outdoor temperature of a region installed with the heat control apparatus; a step of calculating an optimal heat water control temperature by using the outdoor temperature; and a step of controlling boiler operation according to the calculated optimal heat water control temperature. According to the present invention, the heat quantity of a boiler can be controlled to efficiently operate the boiler by reflecting weather of the region installed with the boiler.

Description

TECHNICAL FIELD The present invention relates to a boiler heating calorie control method and apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a boiler control method and apparatus thereof, and more particularly, to a boiler heating heat control method and apparatus therefor.

Boiler means a facility for supplying hot water to various heating facilities by burning oil, coal and gas, or using heat generated by electricity. The residential boiler supplies hot water to the piping installed on the floor or the like of the room to perform heating or to supply hot water to the water supply pipe.

The operation of the boiler is controlled in accordance with the temperature set by the user. For example, when the actual heating water temperature measured by a thermistor of the boiler or the like is higher than a temperature set by the user by a predetermined temperature or more, the burning of the boiler may be stopped. In addition, when the actual heating water temperature measured by the thermistor of the boiler or the like is lower than a predetermined temperature by the user, the combustion of the boiler can be resumed. The operation of the boiler can be controlled by repeating the above-described operation.

However, as described above, the conventional boiler only operates to correspond to the temperature according to the setting of the user. Although the indoor temperature is closely related to the outdoor temperature, the outdoor temperature is not reflected in the operation control of the boiler.

An object of the present invention is to provide a boiler heating calorie control method and apparatus that can control the heating calorific value of a boiler in accordance with the weather (outdoor temperature) of an area where a boiler is installed.

According to an aspect of the present invention, there is provided a boiler heating calorie control method.

According to an embodiment of the present invention, there is provided a method of controlling a boiler heating calorie by a heating control device, comprising the steps of: (a) obtaining an nth outdoor temperature of an area where the heating control device is installed; (b) calculating a heating water control temperature using the nth outdoor temperature; And (c) controlling the operation of the boiler according to the calculated heating water control temperature, wherein the n is a natural number.

Wherein the step (b) includes: deriving a plurality of application steps having different heating water control temperature application ranges based on the setting; And calculating the heating water control temperature using the heating water control temperature application range and the nth outdoor temperature of the application step of any one of the plurality of application steps.

In the step (b), the application step may be varied by using the difference between the indoor temperature according to the boiler operating state and the heating water control temperature.

The boiler operation state may be either an operation or a stop.

(B) recalculating the heating water control temperature by raising the current application step when the indoor temperature is lower than the heating water control temperature in a state where the boiler operation state is in operation; And recalculating the heating water control temperature by lowering the current application step when the indoor temperature is equal to or higher than the heating water control temperature in a state where the boiler operation state is stopped.

The nth outdoor temperature may include at least one of a present outdoor temperature of the area and a predicted outdoor temperature after a predetermined time.

According to an embodiment of the present invention, the boiler heating calorie control method may further include stopping the boiler operation when the predetermined set temperature is lower than the nth outdoor temperature.

The boiler heating calorie control method may further include: obtaining an (n + m) outdoor temperature of an area where the heating control device is installed; And restarting the boiler when the set temperature is equal to or higher than the (n + m) outdoor temperature, wherein m may be a natural number.

According to another aspect of the present invention, there is provided an apparatus for controlling a boiler heating calorie.

According to an embodiment of the present invention, there is provided a heating control apparatus for controlling a heating value of a boiler, comprising: a communication unit for obtaining an outdoor temperature of an area where the heating control apparatus is installed; A calculation unit for calculating a heating water control temperature using the outdoor temperature; And a controller for controlling the boiler operation according to the calculated heating water control temperature.

Wherein the calculation unit derives a plurality of application steps having different heating water control temperature application ranges based on the setting and derives the heating water control temperature application range and the outdoor temperature at any one of the plurality of application steps Can be used to calculate the heating water control temperature.

The controller may vary the application step based on the difference between the current indoor temperature and the heating water control temperature according to the boiler operation state.

The controller increases the current application step by the designated step when the indoor temperature is below the heating water control temperature while the boiler operation state is in operation, If the number is above the control temperature, the current application step can be lowered by the specified step.

According to the embodiment, the controller may stop the boiler operation when the predetermined set temperature is lower than the nth outdoor temperature.

The controller acquires the (n + m) outdoor temperature of the area where the heating control device is installed, and the controller restarts the boiler when the set temperature is the (n + m) It can be a natural number.

According to the present invention, it is possible to provide a boiler heating calorie control method and apparatus that can control the heating calorific value of a boiler in accordance with the weather of a region where a boiler is installed.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a system for heating heat control of a boiler according to an embodiment of the present invention; FIG.
2 is a view schematically showing an internal configuration of a heating control apparatus according to an embodiment of the present invention;
3 is a flowchart illustrating a method for controlling a heating value of a boiler according to an exemplary embodiment of the present invention.
4 illustrates a system for boiler heating calorie control according to another embodiment of the present invention.

While the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In addition, numerals (e.g., first, second, etc.) used in the description of the present invention are merely an identifier for distinguishing one component from another. Also, in this specification, when an element is referred to as being "connected" or "connected" with another element, the element may be directly connected or directly connected to the other element, It should be understood that, unless an opposite description is present, it may be connected or connected via another element in the middle. It should be noted that the terms such as " unit, "" to, "and" to module ", as used herein, mean units for processing at least one function or operation, Or a combination of hardware and software.

It is to be clarified that the division of constituent parts in this specification is merely a division by each main function of each constituent part. That is, two or more constituent parts to be described below may be combined into one constituent part, or one constituent part may be divided into two or more functions according to functions that are more subdivided. In addition, each of the constituent units described below may additionally perform some or all of the functions of other constituent units in addition to the main functions of the constituent units themselves, and that some of the main functions, And may be carried out in a dedicated manner.

Hereinafter, embodiments of the present invention will be described in detail.

FIG. 1 is a schematic view of a system for heating heat quantity control of a boiler according to an embodiment of the present invention. Referring to FIG.

Referring to FIG. 1, a system according to an embodiment of the present invention includes a heating control device 110 and a server 120.

The heating control device 110 is a controller for controlling the operation of the boiler. The heating control device 110 according to an embodiment of the present invention receives an outdoor temperature at a location (region) where the boiler is installed from the outside, and then calculates a heating calorie (i.e., heating water control temperature) of the boiler based on the outdoor temperature, And / or the power of the boiler.

In another example, the heating control device 110 may be provided with information for controlling the amount of heating of the boiler (that is, the heating water control temperature) based on the outdoor temperature at the position where the boiler is installed from the server 120.

In order to control the amount of heat of the boiler based on the outdoor temperature at the location (area) where the boiler is installed, the information (hereinafter, referred to as the location information) (110), or may be input through a user terminal (not shown). For example, a user terminal (not shown) may store information on a location where the boiler is installed (hereinafter, referred to as 'location information') and / or information on the boiler (for example, (Hereinafter, referred to as 'boiler information') to the server 120. Also, the heating control device 110 may transmit the pre-stored boiler information to the server 120. Accordingly, the server 120 can map the information received from the user terminal (not shown) and the heating control device 110 (i.e., the location information and the boiler information) to store the information in the storage space, The position can be recognized. The boiler information received from the user terminal (not shown) and the boiler information received from the heating control device 110 will be the same.

In this way, the heating control device 110 can receive the outdoor temperature corresponding to the location information from the server 120 in order to control the heating heat quantity based on the outdoor temperature depending on the area where the boiler is installed. In another example, the heating control device 110 may acquire an outdoor temperature corresponding to an area where the boiler is installed through a user terminal (not shown) in addition to the server 120.

The server 120 is a device for providing weather information for each area. For example, when the location information is received from the heating control device 110 and / or the user terminal (not shown), the server 120 may provide the weather information corresponding to the location information to the heating control device 110 have. At this time, the server 120 may provide not only the outdoor temperature at the current time but also the predicted outdoor temperature beyond the predetermined time to the heating control device 110. [

FIG. 2 is a schematic view illustrating an internal configuration of a heating control apparatus according to an embodiment of the present invention. Referring to FIG.

2, a heating control apparatus 110 according to an exemplary embodiment of the present invention includes a communication unit 210, a sensor 215, a setting unit 220, a calculation unit 225, a memory 230, 240).

The communication unit 210 is a means for transmitting and receiving data to and from other devices (e.g., the server 120) through a communication network. For example, the communication unit 210 may transmit the boiler information stored in the heating control device 110 to the server 120. The communication unit 210 can also receive the outdoor temperature corresponding to the location information of the corresponding heating control device 110 from the server 120. [

The sensor 215 is a means for measuring the temperature of the indoor space. For example, the sensor 215 may be a temperature sensor.

The setting unit 220 is a means for setting various conditions for controlling the boiler heating heat quantity. For example, the setting unit 220 can set the boiler heating water control temperature application range, the external temperature application range, and the like.

The calculation unit 225 is a means for calculating the heating water control temperature based on the outdoor temperature of the area where the boiler is installed. For example, the calculation unit 225 may calculate the heating water control temperature according to the following Equation (1).

Here, X may represent the 'optimal heating water control temperature', Xmax may represent the 'maximum value of the stepwise heating water control temperature range', Xmin may represent the 'minimum value of the stepwise heating water control temperature range' , Y represents the 'outdoor temperature', Ymin may represent the 'minimum value of the external temperature application range', and Ymax may represent the 'maximum value of the external temperature application range'.

Here, Ymax and Ymin may be preset information.

In addition, the stepwise heating water control temperature range for detecting Xmax and Xmin can be calculated using the heating water control temperature application range. In order to calculate the stepwise heating water control temperature range, the calculation unit 225 may first derive the step variable value using the boiler heating water control temperature application range. For example, the calculation unit 225 may calculate the step variable value using the following equation (2).

는 보일러 난방수 제어 온도 적용 범위의 최고값을 나타낼 수 있으며,

는 보일러 난방수 제어 온도 적용 범위의 최저값을 나타낼 수 있다. 또한, S,

및

는 미리 설정된 정보로서 사용자의 조작에 의하여 설정 변경될 수도 있을 것이다. Here, N denotes a 'step variable value', S denotes a preset 'step variable value'

Can represent the maximum value of the boiler heating water control temperature application range,

Can represent the lowest value of the boiler heating water control temperature application range. In addition, S,

And

May be set and changed by the user's operation as preset information.

When the step variable value is derived from Equation (2), the calculation unit 225 can derive the heating water control temperature range for each application step using the step variable value. The calculation unit 225 can calculate the heating water control temperature range for each application step using the step variable value using Equation (3).

Here, i can represent an index of each step. For example, it is assumed that S is set to 5, and that the boiler heating water control range is set to 40 to 80 degrees. The step variable N can be calculated as 8 by Equation (2). Using the step variable value, the heating temperature control temperature range for each step can be calculated as follows.

The first stage heating water control temperature range = (40 + (8 x 0)) to 80 = 40 to 80

The second stage heating water control temperature range = (40 + (8 x 1)) to 80 = 48 to 80

The third stage heating water control temperature range = (40 + (8 x 2)) to 80 = 56 to 80

4th step heating water control temperature range = (40 + (8 x 3)) to 80 = 64 to 80

5th step heating water control temperature range = (40 + (8 x 4)) to 80 = 72 to 80

As can be seen from the heating water control temperature range of each step, S is set to 5, so that the step for heating water control can be set to a total of five steps, and the heating water control temperature range And the lowest value of the temperature rises to a higher temperature. Any one step may be fixedly used by the user, and the heating water control temperature range for each step may be adaptively changed by the heating control unit 110 .

The above equation (1) is a mathematical expression for the calculation unit 225 to derive the heating water control temperature by reflecting the current outdoor temperature of the boiler installation area. Hereinafter, the case of obtaining the optimal heating water control temperature will be described as an example. For example, if S is set to 5, the boiler heating water control temperature application range is preset to 40 to 80 degrees, the external temperature application range is preset to -20 to 30 degrees, and the current outdoor air temperature is 0 degree .

At this time, the step variable N can be calculated as 8 according to Equation (2). Therefore, the minimum value of the heating water control temperature range may be varied by 8 degrees for each step. Also, according to Equation (3), the heating water control temperature range of the third stage can be calculated as 56 to 80. [ Therefore, the optimum heating water control temperature of the present embodiment can be calculated by Equation (1) above to be 65.6 degrees.

Meanwhile, the calculation unit 225 may calculate the heating water control temperature by further reflecting not only the present outdoor temperature of the area where the boiler is installed but also the predicted outdoor temperature after a predetermined time. This can be expressed by the following equation (4).

일 수 있고, 일정 시간은 미리 설정된 값일 수 있으며 사용자의 조작 등에 의하여 변경될 수 있는 값일 수 있다. here,

The predetermined time may be a predetermined value, and may be a value that can be changed by a user's operation.

The memory 230 is a means for storing various data necessary for controlling the boiler heating calorie based on the outdoor temperature of the area where the boiler is installed.

The controller 240 is configured to control the internal components (e.g., the communication unit 210, the setting unit 220, the calculation unit 225, the memory 230) of the heating control device 110 according to an embodiment of the present invention. Etc.). In particular, the controller 240 may control the operation of the boiler according to the optimal heating water control temperature calculated by the calculation unit 225. For example, the controller 240 may stop the boiler operation if the temperature of the current heating water is equal to or higher than the optimum heating water control temperature. In addition, the controller 240 can operate the boiler when the temperature of the current heating water is lower than the optimum heating water control temperature.

In addition, the controller 240 may adaptively control the amount of heating heat by adaptively changing the heating water control temperature by changing the stepwise heating water control temperature range based on the room temperature measured by the sensor 215. [ For example, when the boiler operation is stopped, the controller 240 determines that the room temperature measured by the sensor 215 is equal to or higher than a preset temperature (for example, a temperature 0.5 degrees higher than the temperature set by the user) If it is maintained for a certain period of time (for example, 60 minutes), the heating rate can be controlled by lowering the application step. The controller 240 maintains the state in which the room temperature is lower than a preset temperature (for example, a temperature 0.5 degrees higher than the temperature set by the user) for a predetermined time (for example, 60 minutes) , It is possible to control the amount of heating heat by increasing the application step.

Meanwhile, the controller 240 may control whether the boiler is operated based on the temperature (hereinafter, referred to as 'set temperature') and the outdoor temperature according to the user's operation measured by the sensor 215. For example, the controller 240 may stop the boiler when the set temperature is lower than the nth outdoor temperature received from the server 120 (where n is a natural number) while the boiler is in operation. That is, the controller 240 may stop the operation of the boiler when the set temperature is lower than the first outdoor temperature while the boiler is in operation. This is because it is not necessary to start the boiler because the room temperature can be increased by using the current outdoor temperature.

Thereafter, the controller 240 may operate the boiler again when the set temperature becomes equal to or higher than the (n + m) outdoor temperature received from the server 120 (m is a natural number). For example, the controller 240 may activate the boiler when the second outdoor temperature received while the boiler is shut down is below the set temperature. This is because it is necessary to raise the room temperature through the operation of the boiler. Wherein the n + m outdoor temperature may be received after the nth outdoor temperature.

In FIG. 2, the heating controller 110 acquires the outdoor temperature of the area where the boiler is installed from the outside (for example, a server) and calculates the optimum heating water control temperature by using it to control the heating heat quantity .

However, the heating water control temperature according to the outdoor temperature may be provided to the heating control device 110 after being calculated by the integrated management server (not shown). In this case, the heating control device 110 receives the heating water control temperature according to the outdoor temperature of the area where the boiler is installed from the integrated management server, and can control the heating heat quantity based on the received heating water control temperature.

3 is a flowchart illustrating a method for controlling a heating value of a boiler according to an exemplary embodiment of the present invention.

In step S310, the user terminal (not shown) transmits the information (location information) and / or the boiler information of the area where the boiler is installed to the server 120. In step S315, the heating control device 110 controls the boiler And transmits the information to the server 120.

In step S320, the server 120 may map the information received from the user terminal (not shown) and the heating control device 110 (i.e., the location information and the boiler information) to store the information in a storage space provided, It is possible to recognize the position where the boiler is installed.

In step S330, the server 120 transmits the n-th outdoor temperature corresponding to the position information to the heating control device 110. [ As another example, the heating control device 110 may obtain the outdoor temperature of the area where the boiler is installed from the user terminal (not shown). In this case, the heating control device 110 may omit the process of transmitting the location information of the area where the boiler is installed to the user terminal. In general, a user terminal can receive weather information corresponding to a location of a corresponding user terminal from a server and output it to a screen. Accordingly, the heating control device 110 may be provided with the outdoor temperature of the area where the boiler is installed from the user terminal held by the user. For example, the heating control device 110 may be connected to an adjacent user terminal through short-range wireless communication, and then periodically receive the outdoor temperature of the area where the boiler is installed from the user terminal.

On the other hand, in step S335, the server 120 may transmit the (n + 1) th outdoor temperature to the heating control device 110 after a predetermined time passes after transmitting the nth outdoor temperature to the heating control device 110 Step S337).

In step S340, the heating control device 110 may stop the boiler from operating if the set temperature is lower than the nth outdoor temperature received from the server 120 while the boiler is in operation. This is because it is not necessary to start the boiler because the room temperature can be increased by using the current outdoor temperature. Thereafter, the heating control device 110 may restart the boiler when the set temperature is equal to or higher than the (n + m) outdoor temperature received from the server 120 (step S350).

In step S360, the heating control device 110 calculates the heating water control temperature using the outdoor temperature of the area where the boiler is installed. In calculating the heating water control temperature using the outdoor temperature, the heating control device 110 subdivides the application range of the boiler heating control temperature set by the user into a plurality of application steps (S application steps) It is possible to calculate the heating water control temperature according to the outdoor temperature. In calculating the heating water control temperature using the outdoor temperature, the heating control device 110 may consider only the current outdoor temperature and may calculate the heating water control temperature in consideration of both the current outdoor temperature and the predicted outdoor temperature after a certain time, The control temperature can also be calculated. The method of calculating the heating water control temperature using the outdoor temperature is the same as that described with reference to FIG. 2, so that a duplicate description will be omitted.

In step S370, the heating control device 110 controls the boiler operation using the calculated heating water control temperature. Also, the heating control device 110 can control the amount of heating heat by comparing the room temperature and the set temperature according to the boiler operation state and changing the application step. Since this is the same as described above, redundant description will be omitted.

In step S380, a user terminal (not shown) may transmit a boiler control termination signal to the server 120 and / or the heating control device 110 according to the user's operation, and thus the server 120 and the heating control device 110 may terminate the operation of controlling the boiler operation using the outdoor temperature.

FIG. 4 is a diagram illustrating a system for controlling heating calories of a boiler according to another embodiment of the present invention. Referring to FIG.

Referring to FIG. 4, the system according to another embodiment of the present invention includes a heating control device 110, an integrated management server 420, and a weather station server 430.

The heating control device 110 transmits the basic information to the integrated management server 420 and then receives the heating water control temperature considering the outdoor temperature of the area where the heating control device 110 is installed from the integrated management server 420 It is a device for controlling the heating calorie.

The location information of the heating control device 110 may be previously set at the time of installing the heating control device 110 and transferred to the integrated management server 420. [ (For example, the boiler heating water control temperature application range, the external temperature application range, and the like) of the heating control device 110 to the integrated management server 420 in addition to the location information Lt; / RTI >

The heating control device 110 can receive the heating water control temperature considering the weather (outdoor temperature) of the area where the heating control device 110 is installed from the integrated management server 420 and can control the heating heat quantity.

The integrated management server 420 is a means for calculating the heating water control temperature in consideration of the weather (outdoor temperature) of the area where the heating control device 110 is installed, and providing the heating water control temperature to the heating control device 110.

When the integrated management server 420 receives the location information from the heating control device 110, the integrated management server 420 may obtain the outdoor temperature corresponding to the location information from the weather station server 430 and calculate the optimal heating water control temperature . The method by which the integrated management server 420 calculates the optimal heating water control temperature may be the same as or similar to the method described with reference to FIG. 2, and thus a detailed description thereof will be omitted.

In addition, the weather station server 430 collectively refers to a server that provides information on the outdoor temperature, and may be a server operated by the National Weather Service of each country or a server providing various services related to the weather.

The method for controlling the heat quantity of the boiler according to the present invention can be implemented as a computer-readable code on a computer-readable recording medium. The computer-readable recording medium includes all kinds of recording media storing data that can be decoded by a computer system. For example, it may be a ROM (Read Only Memory), a RAM (Random Access Memory), a magnetic tape, a magnetic disk, a flash memory, an optical data storage device, or the like. In addition, the computer-readable recording medium may be distributed and executed in a computer system connected to a computer network, and may be stored and executed as a code readable in a distributed manner.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims And changes may be made without departing from the spirit and scope of the invention.

110: Heating control device
120: Server

Claims (13)

A method of controlling a boiler heating calorie by a heating control device,
(a) obtaining an nth outdoor temperature of an area where the heating control device is installed;
(b) calculating an optimal heating water control temperature using the nth outdoor temperature; And
(c) controlling the operation of the boiler according to the optimum calculated heating water control temperature;
, ≪ / RTI &
Wherein n is a natural number.
The method according to claim 1,
The step (b)
Deriving a plurality of application steps having different heating water control temperature application ranges based on the setting; And
Calculating the optimal heating water control temperature using the heating water control temperature application range and the nth outdoor temperature in any one of the application steps;
Wherein the boiler heating calorie control method comprises:
3. The method of claim 2, wherein step (b)
Varying the application step by comparing a room temperature according to a boiler operating state with a predetermined temperature;
And controlling the heating of the boiler.
4. The method of claim 3, wherein step (b)
Calculating the optimal heating water control temperature again by raising the current application step when the indoor temperature is lower than the predetermined temperature in a state where the boiler operation state is in operation; And
Recalculating the heating water control temperature by lowering the current application step by a designated step when the boiler operation state is stopped and the room temperature is higher than the predetermined temperature;
Further comprising the steps of:
The method according to claim 1,
Wherein the nth outdoor temperature includes at least one of a current outdoor temperature of the area and a predicted outdoor temperature after a predetermined time.
The method according to claim 1,
Stopping the operation of the boiler when the predetermined set temperature is lower than the nth outdoor temperature;
Further comprising the steps of:
The method according to claim 6,
Obtaining an (n + m) outdoor temperature of an area where the heating control device is installed; And
Restarting the boiler when the set temperature is equal to or higher than the (n + m) outdoor temperature;
Further comprising:
Wherein m is a natural number.
A heating control device for controlling a heating value of a boiler,
A communication unit for obtaining the nth outdoor temperature of the area where the heating control device is installed;
A calculation unit for calculating an optimal heating water control temperature using the nth outdoor temperature; And
A controller for controlling the boiler operation according to the optimum heating water control temperature;
, ≪ / RTI &
Wherein n is a natural number.
9. The method of claim 8,
The calculation unit may calculate,
Wherein the control unit is configured to derive a plurality of application steps having different heating water control temperature application ranges based on the setting of the heating water control temperature application range and using the heating water control temperature application range and the nth outdoor temperature in any one of the application steps And calculates the optimal heating water control temperature.
10. The method of claim 9,
Further comprising a sensor for measuring the room temperature,
Wherein the controller changes the application step by comparing the room temperature with a preset temperature.
11. The method of claim 10,
The controller comprising:
If the room temperature is lower than the predetermined temperature in a state where the boiler operation state is in operation, the present application step is increased by a designated step, and in a state where the boiler operation state is stopped, , And the current application step is lowered by the designated step.
9. The method of claim 8,
The controller comprising:
And stops the operation of the boiler when the predetermined set temperature is lower than the nth outdoor temperature.
13. The method of claim 12,
Wherein,
(N + m) outdoor temperature of the area where the heating control device is installed,
The controller includes:
And restarts the boiler when the set temperature is equal to or higher than the (n + m)
And m is a natural number.

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