JP2000074393A - Hot-water heating system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To permit the facilitation of repairing and maintenance. SOLUTION: A plurality of sets of heat source machines 7a, 7b are connected in parallel between a sending pipe 4 and a returning pipe 5, which are for circulating hot-water. System data are stored in a memory 11, provided in a main body controller 9 in the heat source machines. The system data are controlled by the microcomputer 16 of a system controller 13. Upon maintenance, the system data can be indicated in an indicating unit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a hot water heating system. In particular, the present invention relates to a high-capacity hot water heating system that circulates hot water through a floor heating panel to perform floor heating.

[0002]

2. Description of the Related Art Conventionally, a large-capacity hot water heating system in which a plurality of heat source units are connected in parallel has a function of storing system data such as a power supply time, a combustion time, a number of times of combustion, and a failure history. Did not.

[0003] For this reason, it is difficult to judge the failure content and the life of the hot water heating system at the time of maintenance, and it is difficult to perform maintenance and inspection work. In particular, in a high-capacity hot water heating system in which a plurality of heat source devices are connected, when a failure occurs, it is difficult to determine which heat source device is the failure.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned technical problems, and an object of the present invention is to provide a hot water heating system capable of easily performing repair and maintenance. To provide.

[0005]

DISCLOSURE OF THE INVENTION The hot water heating system according to the first aspect of the present invention is a hot water heating system in which a plurality of heat source units are arranged in parallel between an incoming pipe and a return pipe for circulating hot water. It is characterized in that it comprises means for individually storing system data for each heat source device as contents. Here, examples of the system data include a failure history of the hot water heating system, the number of operations of the circulation pump, the energization time, the combustion time, and the number of combustions.

[0006] This hot water heating system is provided with a means for storing system data. Therefore, when repairing or checking the hot water heating system, the system data is read out to read the hot water heating system. It is possible to know the overall operation status, in particular, the failure location of the heat source unit, the end of its life, and the like, so that the hot water heating system can be efficiently repaired and maintained. Moreover, since this system data is stored separately for each heat source unit,
It is possible to appropriately determine which of the heat source devices is out of order or which of the heat source devices has a shortened remaining life, and to perform the maintenance and inspection more efficiently.

According to a second aspect of the present invention, in the hot water heating system according to the first aspect, a system controller for integrally controlling a plurality of heat source units is provided. The controller and each heat source unit communicate system data of each heat source unit with each other, the system controller updates the system data of each heat source unit, each heat source unit stores the updated system data relating to itself, and the display unit displays the system data. It is characterized in that system data of each heat source unit is displayed in response to a request from the controller.

According to this embodiment, the system data of each heat source unit can be stored using the memory mounted on the heat source unit, and the memory cost can be reduced. In addition, system data can be displayed on the display unit, so during maintenance of the hot water heating system, the system data can be displayed on the display unit and the system history can be grasped for each heat source unit, making maintenance work more efficient. Can be done

[0009]

FIG. 1 is a schematic diagram showing a hot water heating system 1 according to an embodiment of the present invention. Here, a case where two heat source devices are used is shown, but three or more heat source devices may be connected. Floor heating panel 2
A plurality of branch pipes 6 are provided between the outgoing pipe 4 and the return pipe 5 connected to the pipe 3, and each of the branch pipes 6 passes through the heat source devices 7 a and 7 b, respectively. A circulation pump 8 is provided in the outgoing pipe 4. When the circulation pump 8 is operated, the hot water circulating in the floor heating panel 2 radiates heat from the floor heating panel 2 and heats the room where the floor heating panel 2 is installed. On the other hand, the hot water whose temperature has dropped due to heat radiation from the floor heating panel 2 flows through the return pipe 5 and the inside of the branch pipe 6,
The hot water is heated again by a and 7b, and is again turned into high-temperature hot water and sent from the outflow pipe 4 to the floor heating panel 2. Although not shown, a heat exchanger and a burner are provided in each of the heat source devices 7a and 7b, and the burners are burned to heat the hot water flowing through the heat exchanger.

In each of the heat source devices 7a and 7b, a microcomputer (CPU) 10 and a memory (EEPROM) 11
Is provided with a main body controller 9 including a control board on which is mounted. The microcomputer 10 mounted on the control board and the memory 11 are connected by a signal line 12. The main body controller 9 mainly includes the heat source units 7.
The combustion power of the burner is controlled so that hot water of a predetermined hot water temperature is discharged from a and 7b. The remote controller 22 is installed indoors, and includes a power switch for turning on and off the heating operation and an operation unit for inputting a set value (set temperature) of the system hot water temperature. The system controller 13 includes a circulating pump driving circuit 14,
It has a control board 15 on which a microcomputer 16 is mounted, and switches the number of heat source devices 7a and 7b that perform combustion operation according to the magnitude of the heat load on the floor heating panel 2. Further, as shown in FIG. 2, on a control board 15 of the system controller 13, there are provided a display section 17 composed of a 7-segment display, a dip switch 18, a trial run switch 21, mode switching switches 19 and 20, and the like. . The remote controller 22 is connected to the microcomputer 16 of the system controller 13 by a signal line 23, and the microcomputer 16 of the system controller 13 is connected to the microcomputer 10 of the main body controller 9 by a two-core signal line 24. .

Thus, the system controller 13
The energizing time of the hot water heating system, the ON time,
System data such as the number of on / off times, the operation time of the circulating pump 8, and various failure histories are stored. More specifically, the system controller 13 requests system data from the heat source units 7a and 7b when the power is turned on immediately after the operation switch is turned on. When the system data is requested, the main controller 9 of the heat source units 7a and 7b reads the system data stored in the memory 11 and transmits it to the system controller 13.

When the system controller 13 receives the system data from the main controller 9, it counts each system data based on the system data and transmits it to the main controller 9 periodically. Then, the main body controller 9 compares the system data in the memory 11 with the system data received from the system controller 13, and rewrites the system data in the memory 11 only when there is a change in the system data.

At the time of maintenance, the system controller 13 is opened to expose the control board 15. Control board 1
When the switch 5 is exposed and the two switches 19 and 20 are simultaneously pressed, the system controller 13 enters a maintenance mode. When the system controller 13 enters the maintenance mode, the microcomputer 16 reads system data from the memory 11 through the microcomputer 10 of the main body controller 9 and displays the system data on the display unit 17. When the switch 19 is pressed, the system data is sequentially displayed in order.

Therefore, at the time of maintenance, the display 17
By displaying the system data on the screen, it is possible to know the location of the failure, the life of the equipment, and the like, and to perform appropriate maintenance and quickly perform maintenance and inspection.

The reason why the memory 11 is mounted on the control board of the main controller 9 is that the memory 11 originally mounted on the main controller 9 is used as a memory for storing system data in order to reduce costs. And another memory is stored in the system controller 1
3 may be mounted on the control board 15.

Further, in the above embodiment, the system data of each heat source unit is stored in each individual heat source unit, but the system data of each heat source unit together with information indicating which heat source unit is the system data. The data may be stored in one memory.

[Brief description of the drawings]

FIG. 1 is a schematic diagram illustrating a configuration of a hot water heating device according to an embodiment of the present invention.

FIG. 2 is a partially cutaway plan view showing a control board housed in a system controller.

[Explanation of symbols]

 2 Floor heating panel 7a, 7b Heat source device 8 Circulation pump 9 Main body controller 10 Microcomputer 11 Memory 13 System controller 15 Control board 16 Microcomputer 17 Display unit

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masatsugu Yano 93F, Edo-cho, Chuo-ku, Kobe-shi, Hyogo F-term in Noritz Co., Ltd. 3L070 AA02 BB01 DE09 DF05

Claims (2)

[Claims] 1. A hot water heating system in which a plurality of heat source devices are arranged in parallel between an outgoing pipe and a return pipe for circulating hot water, wherein each of the heat source devices has a history as a content. A hot water heating system comprising means for individually saving system data. 2. The hot water heating system according to claim 1, further comprising a system controller that integrally controls a plurality of heat source units, wherein the system controller and each heat source unit mutually communicate system data of each heat source unit, and The controller updates the system data of each heat source unit, each heat source unit stores the updated system data relating to itself, and the display unit displays the system data of each heat source unit according to a request from the system controller. Hot water heating system.