JP4029527B2 - Operation control method of heat source machine in hot water heating system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an operation control method for a heat source machine in a hot water heating system. In particular, the present invention relates to a processing method for stopping operation of a heat source device by an operation stop signal from a hot water heating terminal.
[0002]
[Prior art]
Multiple hot water heating terminals installed indoors are connected in parallel to the heat source unit, and the hot water heated by the heat source unit is circulated between the multiple hot water heating terminal units and the heat source unit. 2. Description of the Related Art A heating system that heats a room by radiating heat with a machine is used.
[0003]
In such a heating system, the heat source unit can start or stop the combustion operation by a switch operation by a remote controller. On the other hand, the operation panel of each hot water heating terminal can be operated to start or stop the operation of each hot water heating terminal. When the operation is stopped, an operation start signal or an operation stop signal of the terminal is sent to the heat source device.
[0004]
[Problems to be solved by the invention]
However, in such a hot water heating system, when a heat source unit burns and performs a heating operation, if a certain hot water heating terminal stops the heating operation and sends an operation stop signal to the heat source unit, Although the heating terminal is in operation, the heat source machine is stopped from the combustion operation. When the operation switch of the remote controller of the heat source unit is turned on, the remote controller transmits an on signal to the heat source unit at a constant cycle, so the heat source unit is activated by an operation stop signal from the hot water heating terminal. Even if the combustion stops, the heat source machine is immediately returned to the combustion state.
[0005]
For this reason, the heat source machine hunts by performing an unnecessary operation of stopping and resuming combustion, resulting in a problem that the life of the equipment is shortened or incomplete combustion may occur.
[0006]
The present invention has been made to solve the above technical problems, and an object of the present invention is to avoid the hunting operation of the heat source device when the operation of the hot water heating terminal is stopped in the hot water heating system. It is in.
[0007]
[Means for Solving the Problems]
The operation control method of the heat source unit in the hot water heating system according to claim 1 includes a heat source unit for supplying hot water, a plurality of hot water heating terminals connected to the heat source unit, and a remote for controlling the heat source unit. In a hot water heating system including a controller, when the heat source unit is performing a combustion operation, if the operation stop signal is received from any one of the hot water heating terminals, the heat source unit continues the combustion operation for a predetermined time. Thereafter, the combustion operation is stopped.
[0008]
[Action]
In the operation control method of the heat source unit in the hot water heating system according to claim 1, the heat source unit does not stop the combustion operation immediately after receiving the operation stop signal from the hot water heating terminal, and does not stop the combustion operation for a predetermined time. After continuing, the combustion operation is stopped with a delay. Therefore, even if one hot water heating terminal stops the heating operation and outputs an operation stop signal to the heat source device, if another hot water heating terminal is in the heating operation, the heat source device delays and stops the combustion operation Since the ON signal is output from the remote controller to the heat source device before the operation, the heat source device continues the combustion operation without stopping the combustion.
[0009]
Also, when one hot water heating terminal stops heating operation and outputs an operation stop signal to the heat source machine, if another hot water heating terminal stops operating, no on signal is output from the remote controller to the heat source machine Therefore, the heat source machine is delayed and stops the combustion operation.
[0010]
Therefore, the heat source machine smoothly stops combustion or continues the combustion state without hunting.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a schematic diagram showing a configuration of a hot water heating system 11 according to an embodiment of the present invention. The heat source unit 12 is installed outdoors, and the plurality of hot water heating terminals 13 are installed in different rooms. A floor heating panel 14 is connected to the heat source unit 12. The heat source unit 12 may use gas as fuel or kerosene as fuel, and includes a circulation pump (not shown) inside. A plurality of hot water circulation paths 16 are piped to the heat source machine 12 via a hot water supply adapter 15, and each hot water heating terminal 13 and the floor heating panel 14 are connected to the heat source machine 12 via the hot water circulation path 16. ing. Between the hot water heating terminal 13 and the heat source machine 12 in operation, the hot water heated by the heat source machine 12 is the hot water circulation path 16 (only one pipe is shown in FIG. The room in which the hot water heating terminal 13 is installed is heated by circulating in the interior of the return pipe and radiating heat at the hot water heating terminal 13. Moreover, the hot water discharged from the heat source unit 12 circulates in the floor heating panel 14 through the hot water circulation path 16 and performs floor heating of the room where the floor heating panel 14 is installed.
[0012]
FIG. 2 shows an operation display unit 17 provided in each hot water heating terminal 13. 18 is an operation switch for turning the hot water heating terminal 13 on and off. When the operation switch 18 is pressed and turned on, the hot water heating terminal 13 starts the heating operation, the operation lamp 19 is lit, and the operation switch is turned on again. When the switch 18 is turned off, the hot water heating terminal 13 stops the heating operation and the operation lamp 19 is turned off. Reference numeral 20 denotes a temperature setting switch, and the set temperature set by the temperature setting switch 20 is displayed on the display unit 21. Further, the room temperature is displayed on the display unit 22. The temperature setting switch 20 also serves as a time setting switch. In the time setting mode, the temperature setting switch 20 is used for time setting, and the time is displayed on the display units 21 and 22.
[0013]
In addition, a remote controller 23 for controlling the heat source device 12 is installed in the room. The remote controller 23 and the heat source device 12 are connected by a bidirectional communication line (two-core bidirectional data communication line) 24 and are mutually connected. Sending / receiving signals (data). Further, each hot water heating terminal 13 is connected to the heat source unit 12 by a terminal control line 26.
[0014]
In the hot water heating system 11 having the above-described structure, the processing operation of the hot water heating terminal 13 and the heat source device 12 when the operation switch 18 of each hot water heating terminal 13 is turned on and off will be described with reference to the flowchart of FIG. . The controller of the hot water heating terminal 13 monitors whether or not the operation switch 18 has been pressed (step S1). Each time the operation switch 18 is pressed, the heating operation of the hot water heating terminal 13 is switched between on and off. Therefore, when the operation switch 18 is pressed, the controller determines whether the heating operation is on or off (step S2). ). If it is determined that the operation switch 18 is pressed and the heating operation is turned on, the hot water heating terminal 13 sends an operation start signal to the heat source unit 12 (step S3). When the heat source device 12 receives the operation start signal from the hot water heating terminal 13, the heat source device 12 starts the combustion operation if the combustion operation has not been performed, and continues the combustion operation if the combustion operation has already been performed (step S4). ).
[0015]
If it is determined in step S2 that the operation switch 18 is pressed and the heating operation is turned off, the hot water heating terminal 13 sends an operation stop signal to the heat source unit 12 (step S5). When the heat source device 12 receives the operation stop signal from the hot water heating terminal 13, the heat source device 12 waits for a certain period of time to elapse (step S6). Is stopped (step S8).
[0016]
On the other hand, when the other hot water heating terminal 13 is in the heating operation, while the heat source device 12 is waiting for the combustion operation to stop (step S6), the remote controller 23 moves to the heat source device 12. Since the ON signal is sent (step S7), the heat source unit 12 continues the combustion without stopping the combustion operation. Therefore, unlike the conventional example, the heat source device 12 can be stably combusted without restarting the combustion after the heat source device 12 once stops the combustion.
[0017]
【The invention's effect】
According to the operation control method of the heat source unit in the hot water heating system according to claim 1, when the heating operation of a certain hot water heating terminal is stopped, the heat source unit hunts according to the operation state of another hot water heating terminal. The combustion state is continued without delay, or the combustion is stopped smoothly with a delay. Therefore, the durability of the heat source device can be extended, and incomplete combustion when the hot water heating terminal is turned off can be prevented.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a heating system according to an embodiment of the present invention.
FIG. 2 is a front view showing an operation display unit of the hot water heating terminal.
FIG. 3 is a flowchart for explaining the operation of the heat source unit when an operation switch is turned on / off.
[Explanation of symbols]
12 Heat source machine 13 Hot water heating terminal 16 Hot water circuit 18 Operation switch 19 Operation lamp 23 Remote controller

Claims (1)

In a hot water heating system comprising a heat source device for supplying hot water, a plurality of hot water heating terminals connected to the heat source device, and a remote controller for controlling the heat source device,
When the heat source unit is performing the combustion operation, if the operation stop signal is received from any of the hot water heating terminals, the heat source unit stops the combustion operation after continuing the combustion operation for a predetermined time. The operation control method of the heat source machine in the hot water heating system.

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