KR930011051B1 - Controller for gas boiler - Google Patents

Abstract

The method comprises three processes. The first process is that if sleep function operation is selected, heating combustion is operated at the originally selected heating temp. for the first set time. The second process is that the decreasing combustion operation of Tset'= Dset x (660-t) / X is operated. The third process is that after the second set time, the state of Tset'= Cset x 0.7 is maintained. When sleep function operation is selected, the selected sleep temp. is compared with minimum selected temp. of sleep function operation (A deg.C) and heating combustion is operated at the current selected heating temperature.

Description

Combustion control method and apparatus for sleep function operation in gas boiler

1 is a block diagram of a gas boiler control unit for explaining the apparatus of the present invention.

2 is a schematic configuration diagram of a gas boiler to which the method of the present invention is applied.

3 is a flowchart for explaining the method of the present invention.

* Explanation of symbols for main parts of the drawings

10: control unit 10 ': microcomputer

11: Manual control device 11a: Sleep function operation selection unit

11b: Selection function operation reading part 11c: Data input / output part

11d: driver 11e: liquid crystal display control unit

12: oscillation unit 13: data transmission, reception unit

14: tapping temperature detection unit 23: blower

35: circulation pump 51, 52: electromagnetic valve

53: proportional side 112: timer

113: Selection function operation judgment command unit 114: Switch mode determination unit

115: drive unit 116: sleep function operation combustion command unit

117: hot water temperature recognition unit 119: temperature comparison unit

120: next execution command unit 121, 125: first and second combustion operation unit

122, 123: fire extinguishing power and control unit 124: combustion (maintenance) output unit

126: functional part drive unit 128: sleep mode operation unit

The present invention relates to a combustion control method and a device according to a sleep function operation in a gas boiler, and in particular, when a sleep function operation, a user's selection function, is selected, a temperature set during a normal heating operation or a predetermined heating set temperature for a first predetermined time period. Continues heating combustion, and after the first predetermined time has elapsed, after the first predetermined time has elapsed, the down operation is carried out by ＂X＂ until the predetermined bedtime setting temperature is reached, and when the temperature of the heating water reaches the bedtime setting temperature, The present invention relates to a method for controlling a bedtime operation combustion in a gas boiler and a device thereof so that the temperature can be maintained continuously.

In the conventional gas boiler, when the operation method is selected as the sleep function, which is a function selected during the normal heating operation, the sleep function operation is displayed and the combustion proceeds to the fixed heating set temperature of the sleep function operation. Regardless of the heating set temperature before the selection, the combustion proceeds to the fixed heating set temperature of the sleep function unconditionally, which makes it impossible to set the temperature of the suitable sleep function operation according to the user's wishes, and it is continuous at the fixed heating set temperature once displayed. As the combustion proceeds, there is a problem that saving operation due to the fixed set temperature is impossible.

In order to solve the above problem, in the 'boiler temperature control device' of the prior art patent application published in the prior art published in Korean Patent Application Publication No. 89-5473 (89.5.13), when the sleep function operation is selected, the sleep operation operation is selected for a predetermined time. After a certain time elapses after the combustion is carried out to the previous temperature, the heating temperature suddenly changes by 10% of the set temperature, and the user wakes up due to a sudden change in the heating temperature even when the user is in bed. There was a problem.

The present invention has been proposed to solve such a conventional problem, when the first sleep function operation is selected in the heating mode to perform the heating combustion function at the temperature set during the normal heating operation during the first predetermined time, the set temperature ( When Dset) is below the predetermined temperature (A ° C: 40 ° C), which is the lowest set temperature point in the sleep function operation, the set temperature is converted to the predetermined temperature (A ° C) to perform the sleep operation, and the first predetermined time is After the elapsed time, the down operation is performed by ＂X＂ equivalent until the sleep setting temperature (Dset × 0.7) is reached for the second predetermined time so that the heating water reaches the sleep setting temperature, and then the sleep setting temperature is continued. The heating operation is maintained to prevent the heating temperature from being changed within a predetermined time from the beginning of bedtime, giving comfort to the user, and saving operation is performed after the predetermined time. To the bed to provide a functional operation combustion control method in a gas boiler which can improve the economy and an apparatus for the purpose and, when more than detailed description of the present invention with reference to the accompanying drawings as follows.

First, as shown in FIG. 2, the gas boiler 100 to which the method of the present invention is applied is installed in the casing 101 to which the manual adjusting device 11 is connected to the outside, and controls the overall operation of the hot water heater. )Wow; A combustor 20 for burning gas to heat hot water for heating or hot water supply, a water tank 30 for storing heating circulation water, and a secondary heat exchanger having different paths for circulation of hot water and cold water ( 40) is composed by combining with each other.

In this case, a burner group 22 including a plurality of burners is formed in the casing 21 of the combustor 20, and a primary heat exchanger having a temperature fuse 24 ′ attached thereto at an upper direction thereof to prevent overheating. 24 is installed and the burner group 22 heats the water passing therethrough, and a blower 23 for supplying combustion air is installed on the bottom surface of the combustion casing 21. In the vicinity of the 22, if the sparker plaque 26 connected to the speaker 25 for igniting the burner group 22 and the frame rod 27 for detecting the ignition of the burner group 22 is installed, the combustion casing On the upper surface of 21, an exhaust port 28 for discharging the exhaust gas is formed through the casing 101 of the gas boiler.

In addition, a gas pipe 50 for supplying gas is installed below the burner group 22, and there are two electron valves 51 and 52 for passing the gas at the time of energization and a proportional valve for adjusting the gas supply amount. 53 is provided from the upstream of the gas pipe 50 with respect to the gas supply path. In addition, the water tank 30 has a float switch 31 for detecting the amount of water in the water tank 30, an overflow pipe 32 for discharging excess water, and rotating the heating water rotated the ondol floor. The water supply pipe 34 for supplying water to the return pipe 33 and the primary heat exchanger 24 provided with the filter 33 'is installed, wherein the water supply pipe 34 adjusts the circulation of water. The circulation pump 35 is installed in the downward direction. On the other hand, the secondary heat exchanger (40) by discharging water through the hot water pipe 41 and the tap water to withdraw the hot water flowing from the primary heat exchanger 24, the freeze prevention heater 42 'is attached The hot water discharge pipe 42, the cold water inlet from the outside of the hot water heater, a filter 43 'and a water inlet pipe 43 with a water flow switch 43' 'for detecting the presence or absence of water flow and the An auxiliary pipe 46 connected to the return pipe 33 to return the water circulated through the secondary heat exchanger 40 is installed, wherein the water supply pipe 34 is a hot water pipe through the three-way side 44. 41) and a heating hot water supply pipe 45 through which water for heating is passed.

In addition, the water supply pipe (34) passing through the primary heat exchanger (24) is provided with a debris-proof bimetal (34 ') and a demister (34' ') for measuring the tapping temperature, respectively, from upstream with respect to the flow of water. , Between the return pipe 33 and the direct inflow pipe 43, the aquatic supply side 54 for replenishing water when water is insufficient in the water tank 30 is installed, the heating hot water pipe by an external situation When the water does not flow to 45, the bypass pipe 55 for preventing boiling is connected between the return pipe 33 and the heating hot water supply pipe 45, the low-temperature sensing bimetal sensing the outside temperature of the boiler 56 is provided on the inner wall of the casing 101 of the gas boiler.

As shown in FIG. 1, the control unit 10 is a control circuit centering on the microcomputer 10 ', and a timer 112 driven by the output signal of the oscillator 12 in the microcomputer 10'. Wow; A selection function operation determination command unit 113 which receives the output signal of the manual adjustment device 11 through the data transmission and reception unit 13 and determines whether to perform the selection function operation; A switching mode determination unit 114 which receives an output signal of the selection function operation determination command unit 113 and determines a predetermined switching mode; A driving unit 115 for determining whether to drive the sleep function operation combustion command unit 116 and the functional part driving unit 126 according to the output state of the switching mode determination unit 114; A sleep function operation combustion command unit 116 which determines whether the driving unit 115 issues a sleep function operation combustion command according to the output signal; The tapping temperature of the heating water discharged from the primary heat exchanger 24 is detected as an analog signal through the tapping temperature detector 14 connected to the thermistor 34 ″ and then the digital signal is passed through the A / D converter 15. A / D / conversion input unit 118 that receives the input when input to; A tapping temperature recognition part 117 which receives a predetermined signal output as a digital value from the A / D conversion input part 118 and recognizes tapping temperature of heating water; A temperature comparing unit 119 for comparing the temperature of the tap water of the heating water output from the tapping temperature recognition unit 117 with a predetermined temperature value output from the sleep function operation combustion command unit 116; A sleep mode calculator 128 which receives the output signals of the temperature comparing unit 119 and the timer 112 and performs a calculation function according to the sleep mode; A next execution command unit 120 which receives the output signals of the temperature comparing unit 119 and the first combustion operation driving unit 121, determines a function to be performed next, and outputs a control signal to each unit; A first combustion driving unit 121 which receives an output signal of the temperature comparing unit 119 and outputs a predetermined control signal to the next execution command unit 120; A fire extinguishing output unit 122 for receiving an output signal of the next execution command unit 120 and outputting a fire extinguishing signal; A fire extinguishing controller 123 which receives an output signal of the timer 112 and the fire extinguishing unit 122 and outputs a predetermined control signal; A combustion (maintenance) output unit 124 which receives the output signal of the next execution command unit 120 and performs a combustion (maintenance) function; A second combustion operation driver 125 which receives the outputs of the timer 112 and the combustion (maintenance) output unit 124 and selectively outputs an ignition command to the functional part driver 126; A functional part driver 126 for driving the respective functional parts according to the output states of the driver 115 and the second combustion operation driver 125; According to the output signal of the functional part driver 126, each functional part drive signal is converted into a predetermined analog signal through the D / A conversion group 16, and then a circulation pump, an electronic valve, a proportional valve, and a blower lamp part ( And a function component output signal group 127 for controlling the circulation pump 35, the electromagnetic valves 51 and 52, the proportional valve 53 and the blower 23 through 35 ', 51', 53 ', and 23'. It is provided.

In addition, the manual adjustment device 11 and the sleep function operation selection unit 11a for selecting a sleep operation function; A selection function operation reading unit (11b) for reading the output signal of the sleep function operation selection unit (11a); A driver (11d) for outputting a predetermined drive signal to the liquid crystal display control unit (11g) according to the output state of the data input / output unit (11c), which exchanges predetermined data with the data transceiver (13); A liquid crystal display for outputting a predetermined control signal to the current heating set temperature display unit 11e for displaying the current heating set temperature according to the output of the driving unit 11d and the sleep function operation display unit 11f for indicating that the sleep function is in operation. It is provided with the control part 11g.

Meanwhile, in the method of the present invention, as shown in FIG. 3, the user selects the heating operation mode through the manual adjustment device 11 to maintain the heating set temperature in the heating operation mode S ₁ (S ₂ ). If the sleep function operation button installed in the manual adjustment device 11 is pressed and the sleep function operation, which is a user selection function, is selected (S ₃ ), the current heating set temperature (Tset) is a predetermined temperature (A ° C, for example, 40). (S ₄ ) or higher, and if the predetermined temperature (A ° C.) or more is detected, the current heating set temperature and the sleep function operation are performed in the selective function operation reading unit 11b through the driving unit 11d and the liquid crystal display control unit 11g. The display unit 11e, 11f indicates that the current bed heating set temperature and the sleep function are in operation (S ₅ ), and if the current heating set temperature Tset is less than or equal to the predetermined temperature (A ° C.), the current heating set temperature Automatically converts (Tset) to a predetermined temperature (A ℃) (Dset = A ℃) (S ₆ ) After heating (S ₅ ) is displayed on the display set (11e, 11f) during the heating set temperature and the sleep function operation (S ₇ ), the heating operation for maintaining the tapping temperature of the heating water at the set bed heating set temperature (Dset) (S _7). ) Is performed for a first predetermined time (t ₁ ), but when the sleep operation cancel key is input within the _first predetermined time (t ₁ ) (Yes in S ₈ ), an operation process of maintaining the heating set temperature (S _2). ) is coming back, first, when a predetermined time (t ₁₎ within the bed operation cancel key has passed the first predetermined time (t ₁₎ in a state that is not entered in, the second bed operating a cancel key is not input a predetermined time During (t ₂ ), perform the down operation with heating set temperature recognition value (Tset ') = heating set temperature (Dset) × (660-t) ÷ X (where Tset ≥ A ° C) (S ₉ ) When the second predetermined time (t ₂ ) has elapsed (S ₁₀ ), the heating set temperature (Tset ') is maintained at about 30% lower than the heating set temperature (Dset) (Tset' = Dset × 0.7). Heating operation It has been made during the course of (S _11).

When explaining the operation and effect of the present invention made in such a way with reference to Figures 1 and 3 as follows. First, when the user presses the sleep function operation button installed in the manual adjustment device 11 and selects the sleep function operation from the sleep function operation selection unit 11a, the selection function operation reading unit 11b recognizes this and the driving unit ( Since a predetermined signal is outputted to the liquid crystal display control unit 11g through 11d), the liquid crystal display control unit 11g displays the current heating set temperature Tset and the sleep function in operation. It is shown on the liquid crystal of the display unit 11f during the functioning operation. At this time, the current heating set temperature Tset is automatically set to the predetermined temperature (A ℃) only when the current heating set temperature Tset is less than the predetermined temperature (A ℃). It is converted and displayed on the current heating set temperature display portion 11e.

In addition, the drive unit 11 outputs a sleep function operation selection signal to the data input / output unit 11c, and the data transmission / reception unit 13 connected to the data input / output unit 11c selects this signal. The switching mode determination unit 114 is output through the determination command unit 113.

Accordingly, the switching mode determining unit 114 outputs the selection function operation driving signal corresponding to the sleep function operation to the driving unit 115, and the driving unit 115 receiving the signal outputs the sleep function operation combustion command unit 116. The sleep function operation command is issued, and the temperature comparing unit 119 detects the tapping temperature detection unit 14 connected to the thermistor 34 '' and converts the digital signal to the digital signal through the A / D converter 15. The tapping temperature of the number is inputted through the tapping temperature recognition unit 117 and compared with the current heating set temperature and then input to the next execution command determination unit 120, the next execution command unit 120, the predetermined sleep The gas boiler is driven by the sleep function by normal combustion. At this time, the sleep mode operation unit 128 instructs the temperature comparison unit 119 to burn the same temperature as the current heating set temperature for the first predetermined time. So Unless the sleep operation cancel key is input, the heating combustion is performed to maintain the current heating set temperature during the _first predetermined time t ₁ .

On the other hand, the temperature comparison unit 119 detects whether the current heating set temperature (Tset) is higher than the predetermined temperature (A ℃), if the low state (for example, 35 ℃) current heating set temperature (Tset) ) Is raised to a predetermined temperature (A ° C, for example, 40 ° C), and heating operation is performed at this temperature (Dset = A ° C) for the first predetermined time t ₁ .

In this case, the sleep mode operation unit 128 continuously counts the output signal of the timer 112 to detect whether the first predetermined time is completed. If the sleep operation cancel key is not input for the first predetermined time, the predetermined time is determined. When it is detected that (t ₁ ) has elapsed, the heating set temperature recognition value (Tset '= Dset × (660-t) gradually falls from the current heating set temperature for the _second predetermined time t ₂ to the temperature comparing unit 119. Since the reference value of the heating set temperature is gradually lowered and outputted to the temperature comparison unit 119 so that combustion proceeds to ÷ (for example, 600), the tapping temperature of the heating water is a predetermined temperature within the second predetermined time (t ₂ ). It will fall slowly until (Test '= Dest × 0.7) (Test≥A ℃)

Here, 'Test' is the heating set temperature reading value changed according to the change of time (t), Dest is the user's set temperature, 660 is 3 hours plus 1 hour, and X is 600 for 3 hours. A baseline for calculating up to 30% less nuclear power.

To express such a process numerically, first, when the sleep function operation is selected in the manual control device 11, when the heating set temperature is less than or equal to A ° C., the minimum function of the sleep function to A ° C. is performed in the selective function operation reading unit 11b. It transmits to the microcomputer 10 'through the drive unit 11b, and displays the current heating set temperature, which is below A ° C, in A ° C through the liquid crystal display control unit 11g.

That is, when the current heating set temperature (Test) in the manual adjustment device 11 is higher than or equal to the predetermined temperature (A ° C) (Test≥A ° C), the sleep function operation is directly executed, and when Test> A ° C. The selection function operation determination unit 11b forcibly converts the current heating set temperature Test to a predetermined temperature (A ° C.), and then performs the sleep function operation.

As described above, when the sleep function operation is performed in the state of Test≥A ° C, the sleep mode operation 128 in the microcomputer 10 'is set by the output of the timer 112 for the first predetermined time t ₁ . Test '(heating set temperature recognition value of microcomputer 10') is executed.

Then, when the Dest = Test nuclear power plant is finished for the _first predetermined time (t ₁ ), the down set temperature of the test against 0-30% of the heating set temperature (Dest) during the _second predetermined time (t ₂ ). Combustion is output from the sleep mode operation unit 128 to the temperature comparison unit 119 to perform down combustion.

That is, when the time passes, the sleep function operation of the predetermined temperature goes down for the second predetermined time t ₂ , such as Test '= Dest × (660-t) ÷ × (Test≥A ° C.). For example, if the sleep function operation is selected at 30 ° C and immediately enters the sleep operation function, and 120 minutes have elapsed, Test '= 30 × (660-120) ÷ 600 = 16200 ÷ 600 = 27 ° C, but in reality Test≥A ° C. In accordance with the provisions of A, the temperature rises to A ℃ (40 ℃), which is the lowest temperature point of the comfort sleeping temperature.

In this state, when the second predetermined time t ₂ has elapsed, the final value (Test '= Dest × 0.7, which is 0 to 30% away from the heating set temperature Dest) of the manual regulator 11, provided that Test≥A Combustion by C) is continued.

At this time, 0 to 30% means that the heating set temperature perception value of the microcomputer 10 'is not lower than A ° C. Therefore, when the bed heating and heating set temperature Dest of the manual control device 11 is A ° C. Is 1% to 30% of cancellation, equal to A ℃ or down operation is performed above A ℃.

That is, if 30 minutes, 60 minutes, 90 minutes, 120 minutes, and 240 minutes have elapsed when the bedtime operation is selected in the state of the first heating temperature (Dest) of 60 ° C., 63 ° C. (60 ° C.) according to the above elapsed time. The down operation which falls gradually to x (660-30) ÷ 600 = 63 degreeC), 60 degreeC, 57 degreeC, 51 degreeC, and 42 degreeC is performed, respectively.

In addition, the temperature comparison unit 119 continuously compares the tapping temperature detected by the heater 34 '' and the heating temperature with the heating set temperature recognized value of Test 'as a reference value, and outputs the fire through the next execution command unit 120. The control unit 122 or the combustion (holding) output unit 124 commands a predetermined control signal. Accordingly, the functional part driving unit 126 performs the combustion of the second combustion operation unit 125, and then the functional part output signal. Through the group 127, the electronic valves 51 and 52, the proportional valve 53, and the blower 23 are 'on' or 'off' to perform combustion of the sleep function operation.

When the sleep function operation is performed, the current heating set temperature display unit indicates the temperature at which the sleep function operation started at the same time as the A ℃ by maintaining the heating set temperature of the manual control device 11 as it is or during the sleep function operation. 11e), and before going to bed, 0-30% of down operation is performed during the _second predetermined time (t ₂ ) after the _first predetermined time (t ₁ ) according to the heating preset temperature of the manual control device 11. Therefore, not only can the gas be insulated, but when the decommissioning operation is completed, heating is performed to keep the final temperature value lowered from 0 to 30% to perform the minimum heat discharge operation requiring sleep. Convenience can improve economics as much as possible.

On the other hand, Figure 3 is a flowchart showing the method of the present invention, while the operation combustion is progressing (S ₂ ) at the heating preset temperature of the user of the gas boiler being the nuclear power plant (S ₁ ) in the heating mode, the user goes to bed. If the user enters the sleep function operation selection button installed in the manual control device 11 to enter the bed operation selection unit (11a) and recognizes that the sleep function operation is selected (S ₃ ). The selection function operation reading unit 11b determines whether the current heating set temperature test is above a predetermined temperature (A ° C.) (S ₃ ), and if the test ≥ A ° C. state, the current heating set temperature test It is shown on the heating preset temperature display part 11e.

Subsequently, the heating operation S ₇ is maintained for a predetermined time t ₁ so that the tapping temperature of the heating water is maintained at the above-described heating set temperature Dest, thereby preventing the heating temperature before going to bed. Thus, the user can go to bed while feeling comfortable.

In this state, when the predetermined time (t ₁ ) has elapsed, the heating operation combustion is performed in which the heating set temperature (Dest) decreases by (660-t) ÷ 600 value over the second predetermined time (t ₂ ). S ₉ ), the gas can be saved to the maximum, and after a predetermined time t ₂ , the heating set temperature test value 'Test' is maintained at 70% of the heating set temperature Dest.

At this time, the heating preset temperature (Dest) is set low so that the heating preset temperature test value (Test ') is the minimum bedtime temperature (A ° C) before the _second predetermined time (t ₂ ) has elapsed (that is, during the down operation). When no more down operation is carried out, the heating operation is continued to maintain the bedtime minimum temperature (A ° C.), so that the minimum calorific value required for bedtime can be continuously obtained.

As described above, according to the present invention, when the sleep function operation is selected in the heating mode, if the current heating preset temperature is lower than the predetermined temperature, the steel is converted into the predetermined temperature, and if the heating preset temperature is higher than the predetermined temperature, the heating preset temperature at that time is By displaying directly on the manual control device and performing heating combustion to maintain the above set heating temperature for the first predetermined time t ₁ , the user can maintain comfort before going to bed and the first predetermined time. After (t ₁ ) has elapsed, the heating operation temperature (Dest) during the second predetermined time (t ₂ ) is carried out to save the operation by a predetermined temperature (Dest × (660-t) ÷ ×) as time passes. Gas can be saved, and when the second test time (t ₂ ) elapses and Test 'reaches Dest × 0.7, the heating and combustion operation continues in that state (Test ≥ A ℃), so that the sleep operation temperature can be maintained. there is A.

Claims (5)

When the inaugural function operation is selected by the user, it indicates that the sleep function is in operation. At the same time, the temperature comparison unit 119 compares the setting temperature of the bed heating and the tapping temperature of the heating water to repeat the combustion and extinguishing of the burner, and the tapping of the heating water is performed. In the combustion control method of the gas boiler's sleep function operation in which the temperature is maintained at the sleep heating set temperature, if the incubation function operation is selected in the above, the heating combustion is performed at the first heating set temperature for the first predetermined time (t ₁ ). During the second predetermined time (t ₁ ), perform the down combustion operation such that Test '= Dest × (660-t) ÷ ×, which is the heating set temperature value, but after the _second predetermined time (t ₂ ), Test' = Combustion control method for sleep function operation in a gas boiler, characterized in that the process is to maintain the state = Dest x 0.7. A timer 112 driven by an output signal of the oscillator 12; A selection function operation determination command unit 113 for determining whether to perform the selection function operation by receiving the output signal of the manual adjustment device 11 through the data transmission and reception unit 13; A switching mode determination unit 114 which receives an output signal of the selection function operation breaking command unit 113 and determines a predetermined switching mode; A driving unit 115 which determines whether to drive the outgoing function operation combustion command unit 116 and the functional part driving unit 126 according to the output state of the switching mode determination unit 114; A sleep function operation combustion command unit 116 for determining whether to issue a sleep function operation combustion command according to the output signal of the driving unit 115; Tapping temperature recognition unit for receiving the tapping temperature of the heating water discharged from the primary heat exchanger 24 as a predetermined signal through the tapping temperature detection unit 14 connected to the thermistor (34 ＂) as a tapping temperature of the heating water 117; The temperature comparison unit 119 for comparing the fixed set temperature T ₁ output from the sleep function operation combustion command unit 116 with the tapping temperature T ₂ of the heating water output from the tapping temperature recognition unit 117. )Wow; A next execution command unit 120 which receives the output signals of the temperature comparison unit 119 and the first combustion operation driver 121 to determine functions to be performed next, and controls each unit; A first combustion driving unit 121 which receives the output signals of the temperature comparing unit 119 and the fire extinguishing control unit 123 and controls the next execution command unit 120; A fire extinguishing output unit 122 which receives the output signal of the next execution command unit 120 and outputs a fire extinguishing signal; The fire extinguisher receiving the output signal of the timer 112 and the fire extinguishing output unit 122 to generate a predetermined control signal to the temperature comparison unit 119, the first combustion operation driver 121 and the functional part driver 126. A control unit 123; A combustion (maintenance) output unit 124 which receives the output signal of the next execution command unit 120 and performs a combustion (maintenance) function; A second combustion operation driver 125 which receives the output of the timer 112 and the combustion (maintenance) output unit 124 and selectively outputs an ignition command to the functional part driver 126; A functional part driver 126 for driving respective functional parts according to the output states of the driver 115 and the second combustion operation driver 125; Interconnecting with the functional component output signal group 127 for controlling the circulation pump 35, the electromagnetic valves 51 and 52, the proportional valve 53 and the blower 23 according to the output signal of the functional component driver 126. Combustion control device of the gas boiler, characterized in that the configuration. The combustion control method according to claim 1, wherein the A ° C is 40 ° C. The method of claim 2, wherein the manual adjustment device 11 and the sleep function operation selection unit (11a) for selecting a sleep function; A selection function operation reading unit 1b for reading the output signal of the sleep function operation selection unit 1; A data input / output unit (11c) which exchanges predetermined data with the data transmission / reception unit (13); A driving unit 11d for outputting a predetermined driving signal to the liquid crystal display control unit 11g according to the output state of the selection function driving reading unit 11b and the data input / output unit 11c; And a liquid crystal display control unit (11f) for controlling the fixed set temperature display unit (11e) for displaying a fixed set temperature according to the output of the drive unit (11d). The method of claim 1, wherein when the sleep function operation is selected, the current sleep heating set temperature (Test) is compared with a predetermined temperature (A ° C.) which is the lowest set temperature point of the sleep function operation. A method of controlling the operation of a bed function in a gas boiler, characterized by forcibly (Testing) a test to a predetermined temperature (A ° C.) and then heating and heating to a bed heating set temperature (Dest).