JP6138656B2 - Heating system - Google Patents

Description

  The present invention relates to a heating system.

Conventionally, in Patent Document 1, a heating heat medium is heated using a combustion heat source machine, an electric heat pump, or the like as a heat source machine, and then distributed to one heating radiator (in this case, the floor heating panel in the center of the room). A floor heating facility (corresponding to a heating system) that comfortably heats a room by distributing a heating heat medium to the other heating radiator (in this case, a floor heating panel around the room) is disclosed. .
In patent document 1, as shown in FIG. 13, it has the 1st heating radiator 114 laid in the center part of the room 110, and the 2nd heating radiator 124 laid in the peripheral part of the room 110. Yes.
The first heating radiator 114 is connected to one end of a post-heating heating pipe 135 for allowing the heating heating medium heated by the heat source unit 130 to flow in, and heating for discharging the heating heating medium after heat dissipation. One end of the mixed pipe 115 after heat dissipation is connected.
The second heating radiator 124 is connected to one end of a heat medium inflow pipe 123 for allowing a heating heat medium to flow in, and one end of a heat medium outflow mixing pipe 125 for discharging the heated heat medium after heat dissipation. Is connected.
The other end of the mixing pipe 115 after heating and heat dissipation is connected to the mixing means 146 via the flow path switching valve 116, and the other end of the heat medium outflow mixing pipe 125 is connected to the mixing means 146.
Also, the post-heat-dissipating pipe 136 that is an output from the mixing unit 146 is connected to the heat source unit 130, and the other end of the post-heating-heated pipe 135 is connected to the heat source unit 130.
Further, a flow path switching valve 116 is provided at any position of the mixing pipe 115 after heating and heat dissipation, and the other end of the heat medium inflow pipe 123 is connected to the flow path switching valve 116. The flow path switching valve 116 discharges the heating heat medium flowing from the mixing pipe 115 after heating and discharging toward the mixing means 146 or the heat medium inflow pipe 123. Switch.
A flow path opening / closing valve 112 is provided at any position of the pipe 135 after heating and heating.
A heating circulation pump 141 is provided in the heat source unit 130.

The heat source device control means 131 drives the heating circulation pump 141 to circulate the heating heat medium, and controls the flow path opening / closing valve 112 to be in an open state, thereby causing the heating heat medium to flow into the first heating radiator 114. Further, the heat source device control means 131 controls the flow path switching valve 116 so that the heating heat medium after heat radiation by the first heating radiator 114 is returned to the heat source device 130 via the mixing means 146, or After flowing into the second heating radiator 124 and dissipating heat, it can be returned to the heat source unit 130 via the mixing means 146, or any path can be used.
That is, in the configuration of Patent Document 1 shown in FIG. 13, only the first heating radiator 114 is operated for heating, or the first heating radiator 114 and the second heating radiator 124 are heated in series (first heating radiator). It is possible to perform two types of heating operation, in which a heating heat medium is circulated through the body first. However, in the configuration of Patent Document 1 shown in FIG. 13, the first heating radiator 114 and the second heating radiator 124 cannot be heated in parallel.

Japanese Patent No. 4063756

In the heating system described in Patent Document 1 shown in FIG. 13, the heating heat medium may be returned to the heat source machine 130 after radiating heat from the first heating radiator 114 laid in the center of the first room 110. However, since the heating load of the first room 110 is smaller than that of the previous house in a high airtight and highly insulated house in recent years, the temperature of the heating medium when the heating medium returns to the heat source unit 130 after radiating heat. Tend to be higher. As a result, the temperature rise of the heating heat medium due to the heating of the heat source unit 130 and the output of the heat source unit 130 are reduced, and the heating operation efficiency of the heat source unit 130 tends to be reduced.
In addition, several types of products have already been put to practical use for the first heating radiator 114 for heating the central portion of the room, but the second heating radiator 124 for heating the peripheral portion of the room is designed as a new dedicated product. It takes time and effort to develop.
In recent years, there are cases where the living room and the dining room are in one room. In such a case, two heating radiators designed to heat the central part of the room are prepared, the living area, Efficient heating can be expected if the dining area can be heated.
However, in the configuration of Patent Document 1 shown in FIG. 13, for example, if the first heating radiator 114 is arranged in the living room and the second heating radiator 124 is arranged in the dining room, only the dining room cannot be heated. In this case, heating of the dining room can be performed only when the living room is heated, and it is impossible to meet the demand of a user who desires independent heating of the dining room.
In addition, in the configuration of Patent Document 1 shown in FIG. 13, the first heating radiator 114 and the second heating radiator 124 cannot be heated in parallel. When the load becomes very large, when the first heating radiator 114 and the second heating radiator 124 are heated in series (the heating medium is first circulated through the first heating radiator), the second heating radiator There is a possibility that heating in the room cannot be performed sufficiently.
The present invention has been devised in view of such a point, and uses the first heating radiator and the second heating radiator provided in one room to perform heating more comfortably and more efficiently. It is possible to provide a heating system that can further improve the heating operation efficiency of the heat source machine.

In order to solve the above problems, the heating system according to the present invention takes the following means.
First, a first invention of the present invention includes a heat source unit that heats a heating heat medium, and a first heating radiator and a first heating radiator that are connected via a heating piping path through which the heating heat medium circulating between the heat source units flows. 2. A heating system comprising: 2 heating radiators; and an operating state setting unit that allows a user to set operating states of the first heating radiator and the second heating radiator. The second heating radiator is installed in the same room.
The heating pipe path includes a post-heating heating pipe that flows the heating heat medium discharged from the heat source unit into the heating pipe branching means, and the heating heat medium branched and discharged by the heating pipe branching means. A first post-heating heating branch pipe flowing into the heating radiator, a second heating post-heating branch pipe flowing into the second heating radiator from the heating heat medium branched and discharged by the heating pipe branching means; The heating heating medium discharged from the first heating radiator is mixed into the heating pipe mixing means, and the heating heating medium discharged from the second heating radiator is introduced into the heating pipe mixing means. Any of the second heating post-heat radiation mixing pipe, the heating post-heat radiation pipe mixed and discharged from the heating pipe mixing means into the heat source unit, and the first heating post-heat radiation mixing pipe Position of the branch pipe after the second heating and heating A first heating bypass pipe connected to any one of the positions; a second position connected to any one of the second heating post-heat mixing pipes; and a second position connected to any one of the first heating post-heating branch pipes. It is comprised by the heating bypass piping, the said heating piping branch means, and the said heating piping mixing means.
The heat source unit is provided with a first heating circulation pump for circulating a heating heat medium, and the second heating unit is connected to the heating pipe branching unit in the branch pipe after the first heating heating. A first on-off valve capable of switching the branch pipe after the first heating and heating to a closed state or an open state is provided at any position up to the location where the bypass pipe is connected. In the post-heating branch pipe, the second post-heating heating branch pipe is closed at any position from the place where the heating pipe branch means is connected to the place where the first heating bypass pipe is connected. Or the 2nd on-off valve which can be switched to an open state is provided.
In addition, the heating heat medium flowing in from the first mixed pipe after heat radiation is supplied to the first heated bypass pipe at a location where the first mixed pipe after heat radiation and the first heated bypass pipe are connected. A switchable first flow path switching valve is provided so as to discharge toward the heating pipe, or to discharge the heating heat medium flowing in from the mixing pipe after the first heating radiation toward the heating pipe mixing means. In addition, the heating medium that has flowed in from the second heating and heat mixing pipe is connected to the second heating and bypass pipe at a location where the second heating and heat mixing pipe and the second heating bypass pipe are connected. A switchable second flow path switching valve is provided so that the heating heat medium flowing from the second heating / radiating mixed pipe is discharged toward the heating pipe mixing means. Yes.

In the first invention, as shown in FIG. 1, a heat source machine and a first heating radiator are used by using a first on-off valve, a second on-off valve, a first flow path switching valve, and a second flow path switching valve. And the second heating radiator are connected by appropriate piping.
By having the configuration of the first invention, it is possible to perform the following five heating operations on the first heating radiator and the second heating radiator provided in the same room.
(1) Heating operation using only the first heating radiator.
(2) Heating operation using only the second heating radiator.
(3) A heating operation (parallel heating operation) in which the first heating radiator and the second heating radiator are connected in parallel to the heat source unit.
(4) A heating operation in which the first heating radiator and the second heating radiator are connected in series with respect to the heat source unit, and the heating operation in which the heating heat medium is circulated through the first heating radiator first (first Series heating operation).
(5) A heating operation in which the second heating radiator and the first heating radiator are connected in series with respect to the heat source unit, and the heating operation in which the heating heat medium is circulated through the second heating radiator first (second Series heating operation).
Thereby, using the 1st heating radiator and the 2nd heating radiator provided in one room, it becomes possible to heat individually, to heat in parallel, and to heat in series, respectively. Depending on the heating state desired by the person, it is possible to heat more comfortably and more efficiently, and the heating operation efficiency of the heat source machine can be further improved.
For example, if there is a living room and a dining room in one room, the first heating radiator is arranged in the living room and the second heating radiator is arranged in the dining room, as described above, according to the heating state desired by the user. Thus, heating can be performed more comfortably and efficiently.

Next, 2nd invention of this invention is a heating system which concerns on the said 1st invention, Comprising: The said 1st heating circulation pump is located in either the position of the said piping after heating radiation or the piping after heating heating. In addition, a second heating circulation pump for circulating the heating heat medium is provided.
Alternatively, a third heating bypass pipe connected to any position of the heating post-heat radiation pipe and any position of the heating post-heating pipe is provided, and the third heating bypass pipe includes the post-heating heating pipe. There is provided a third heating circulation pump capable of guiding at least a part of the heating heating medium from the pipe to the post heating heating pipe.

  According to the second aspect of the invention, for example, when the first heating radiator and the second heating radiator are connected in series to the heat source unit, the circulation path of the heating medium becomes longer and the first heating circulation pump When the capacity becomes insufficient, the capacity of the first heating circulation pump can be supplemented by using the second heating circulation pump or the third heating circulation pump simultaneously with the first heating circulation pump.

  Next, 3rd invention of this invention is a heating system which concerns on the said 1st invention or 2nd invention, Comprising: The said 1st heating radiator and said 1st flow in the said 1st heating after-radiation mixed piping At least one of the positions between the path switching valves or at any one of the positions between the second heating radiator and the second flow path switching valve in the second heating and heat dissipation mixed pipe; 1 temperature detection means is provided, and the first on-off valve, the second on-off valve, the first flow path switching valve, and the second flow path switching valve are detected by the first temperature detection means. It is controlled according to the temperature condition based on the temperature of the heating heat medium.

  According to the third aspect of the present invention, when heating is performed using the first heating radiator and the second heating radiator at the same time, the temperature of the heating heat medium detected by the first temperature detection means is determined for the heat source device. Whether the first heating radiator and the second heating radiator should be connected in parallel or in series (the heating heating medium should be circulated first through the first heating radiator) or connected in series (second heating Appropriately determines whether the heating medium should be circulated through the radiator, and appropriately controls the first on-off valve, the second on-off valve, the first flow path switching valve, and the second flow path switching valve. be able to.

  Next, 4th invention of this invention is a heating system which concerns on the said 1st invention or 2nd invention, Comprising: The said 1st on-off valve and said 1st heating radiation in the said 1st heating heating branch piping At least one of the positions between the bodies or at any one position between the second on-off valve and the second heating radiator in the branch pipe after the second heating and heating is the second temperature detection means The first on-off valve, the second on-off valve, the first flow path switching valve, and the second flow path switching valve are provided for the heating heat medium detected by the second temperature detecting means. It is controlled according to temperature conditions based on temperature.

  According to this 4th invention, when heating using the 1st heating radiator and the 2nd heating radiator simultaneously, with respect to a heat source machine by the temperature of the heating heat medium detected by the 2nd temperature detection means Whether the first heating radiator and the second heating radiator should be connected in parallel or in series (the heating heating medium should be circulated first through the first heating radiator) or connected in series (second heating Appropriately determines whether the heating medium should be circulated through the radiator, and appropriately controls the first on-off valve, the second on-off valve, the first flow path switching valve, and the second flow path switching valve. be able to.

  Next, a fifth aspect of the present invention is the heating system according to the first aspect or the second aspect of the present invention, wherein an outside air temperature is set in at least one of the inside of the heat source unit or the outside of the heat source unit. Detectable third temperature detection means is provided, and the first on-off valve, the second on-off valve, the first flow path switching valve, and the second flow path switching valve are connected to the third temperature detection means. The temperature is controlled according to the temperature condition based on the detected outside air temperature.

  According to the fifth aspect of the present invention, when the first heating radiator and the second heating radiator are simultaneously used for heating, the first heat source device is controlled by the temperature of the outside air detected by the third temperature detecting means. Whether the heating radiator and the second heating radiator should be connected in parallel or in series (the heating heating medium should be circulated first through the first heating radiator) or connected in series (the second heating radiator) The heating / heating medium should be circulated first), and the first opening / closing valve, the second opening / closing valve, the first flow path switching valve, and the second flow path switching valve can be appropriately controlled. it can.

Next, a sixth invention of the present invention is the heating system according to the first invention or the second invention, wherein the heating operation of the first heating radiator and the heating operation of the second heating radiator are performed. When performing, it heats, switching a 1st series heating operation and a 2nd series heating operation alternately for every 1st predetermined time.
In the first series heating operation, the first on-off valve is controlled to be in an open state, the second on-off valve is controlled to be in a closed state, and the first flow path switching valve is in the first heating heat dissipation. The heating heat medium from the post-mixing pipe is controlled to be discharged toward the first heating bypass pipe, and the second flow path switching valve heats the heating heat medium from the second heating-radiation mixed pipe after the heating. Controlled to the side of discharging toward the pipe mixing means.
In the second series heating operation, the first on-off valve is controlled to be in a closed state, the second on-off valve is controlled to be in an open state, and the first flow path switching valve is in the first heating heat dissipation. The heating heat medium from the post-mixing pipe is controlled to be discharged to the heating pipe mixing means, and the second flow path switching valve receives the heating heat medium from the second heating-radiation mixed pipe after the second heating. It is controlled to the discharge side toward the heating bypass pipe.

  According to the sixth aspect of the invention, when heating using the first heating radiator and the second heating radiator simultaneously, the first series heating operation in which the heating heating medium is circulated through the first heating radiator, While heating the second series heating operation in which the heating medium is first circulated through the second heating radiator to alternately switch every first predetermined time, the heating operation efficiency of the heat source machine is further improved. The heating area by the 1 heating radiator and the heating area by the 2nd heating radiator can be heated more uniformly.

Next, a seventh invention of the present invention is the heating system according to the sixth invention, wherein the heating operation of the first heating radiator and the heating operation of the second heating radiator are started. 2 Until the predetermined time is reached, heating is performed in parallel heating operation, and after the second predetermined time has elapsed, the first series heating operation and the second series heating operation are performed at each first predetermined time. Heat alternately while switching between and.
In the parallel heating operation, the first on-off valve is controlled to be in an open state, the second on-off valve is controlled to be in an open state, and the first flow path switching valve is mixed after the first heating and heat dissipation. The heating heat medium from the pipe is controlled to be discharged to the heating pipe mixing means, and the second flow path switching valve sends the heating heat medium from the second heat-radiating mixed pipe to the heating pipe mixing means. It controls to the side which discharges toward.

According to the seventh aspect of the present invention, the first heating radiator and the second heating radiator are connected in parallel to the heat source unit until the second predetermined time has elapsed at the start of heating, and heating is performed. After the elapse of two predetermined times, heating is performed while alternately switching between the first series heating operation and the second series heating operation every first predetermined time.
Thus, at the start of heating, the first heating radiator and the second heating radiator are heated in parallel, thereby heating to the target temperature in a shorter time, and after the second predetermined time has elapsed, the sixth invention By performing the heating operation, the temperature can be efficiently maintained.

  Next, 8th invention of this invention is a heating system which concerns on any one of the said 1st invention-7th invention, Comprising: The said heat-source machine is a said 1st on-off valve and a said 2nd on-off opening. A heat source unit control unit capable of controlling a valve, and a channel switching control unit that relays transmission and reception of communication information between the heat source unit control unit and the operation state setting unit, and the channel switching control unit Controls the first flow path switching valve and the second flow path switching valve based on the relayed communication information.

  According to the eighth aspect of the invention, by providing the flow path switching control means for relaying communication, the flow path switching control means can recognize the information from the operation state setting means and the information from the heat source unit. Therefore, the first channel switching valve and the second channel switching valve can be appropriately controlled from the channel switching control means.

  Next, 9th invention of this invention is a heating system which concerns on any one of the said 1st invention-7th invention, Comprising: The said heat-source machine is a said 1st on-off valve and a said 2nd on-off A heat source device control means capable of controlling the valve, and does not relay transmission / reception of communication information between the heat source device control means and the operation state setting means, and communication information between the heat source device control means The flow path switching control means controls the first flow path switching valve and the second flow path switching valve based on the received communication information.

  According to the ninth aspect of the invention, by providing the flow path switching control means capable of transmitting and receiving communication information with the heat source machine control means, the information from the heat source machine can be recognized by the flow path switching control means. The first channel switching valve and the second channel switching valve can be appropriately controlled from the channel switching control means.

Next, a tenth aspect of the present invention is the heating system according to the eighth aspect or the ninth aspect, wherein the first on-off valve control is capable of controlling the first on-off valve from the heat source unit control means. The second on-off valve control wiring capable of controlling the wiring and the second on-off valve is input to the flow path switching control means without being connected to the first on-off valve and the second on-off valve.
The flow path switching control means can control the first on-off valve, the second on-off valve, the first flow path switching valve, and the second flow path switching valve, from the first on-off valve control wiring. Based on the control signal, the control signal from the second on-off valve control wiring, and the relay or received communication information, the first on-off valve, the second on-off valve, and the first flow path switching valve, The second flow path switching valve is controlled.

According to the tenth aspect, it is possible to more appropriately control the first flow path switching valve and the second flow path switching valve using the flow path switching control means.
Thereby, the 1st heating radiator and the 2nd heating radiator can be heated more efficiently, and the heating operation efficiency of a heat source machine can be improved more.

It is a figure explaining an example of composition of heating system 1A of a 1st embodiment. It is a figure explaining the example of a structure of the heating system 1B of 2nd Embodiment. It is a figure explaining the example of a structure of the heating system 1C of 3rd Embodiment. It is a figure explaining the example of a structure of heating system 1D of 4th Embodiment. It is a figure explaining the example of a structure of the heating system 1E of 5th Embodiment. It is a figure explaining the example of a structure of the heating system 1F of 6th Embodiment. It is a figure explaining the example of a structure of the heating system 1G of 7th Embodiment. It is a figure explaining the example of a structure of the heating system 1H of 8th Embodiment. It is a figure explaining the example of a structure of the heating system 1J of 9th Embodiment. It is a figure explaining the example of a structure of the heating system 1K of 10th Embodiment. It is a figure explaining the example of a structure of the heating system 1L of 11th Embodiment. It is a figure explaining the example of a structure of the heating system 1M of 12th Embodiment. It is a figure explaining the example of a structure of the conventional heating system.

EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing.
● [Heating system 1A of the first embodiment (FIG. 1)]
As shown in FIG. 1, the heating system 1 </ b> A according to the first embodiment includes a heat source unit 30, a first heating radiator 14 and a second heating radiator 24 provided in a room 10, and an operation state setting unit 11. And each pipe (corresponding to a heating pipe path).

The heat source unit 30 includes a heat source unit control unit 31 (heat source unit control device), a combustion heating unit 32 (combustion heater), a combustion heat exchanger 33, a first heating circulation pump 41, and the like.
The heat source unit 30 is connected to a fuel pipe 37, a post-heating heat radiation pipe 36, and a post-heating heating pipe 35.
The combustion heating unit 32 burns fuel such as gas supplied from the fuel pipe 37 based on a control signal from the heat source unit control unit 31.
Further, the combustion heat exchanger 33 uses the heat of the combustion heating means 32 to heat a heating heat medium (for example, hot water) flowing from the post-heating heat radiation pipe 36.
Further, the first heating circulation pump 41 causes the heating heat medium to flow into the heat source unit 30 from the post-heating radiation pipe 36 based on the control signal from the heat source unit control means 31 and is heated by the combustion heat exchanger 33. The heating heat medium is circulated so that the medium is discharged from the pipe 35 after heating and heating.

The room 10 is a space to be heated such as a living room, a dining room, a kitchen, a sanitary, a dressing room, a bedroom, a children's room, a room in which the living room and the dining room are integrated, and the first heating radiator 14 such as a floor heater. And a second heating radiator 24 is provided. That is, the space to be heated is classified into two spaces in the room 10, and the first heating radiator 14 and the second heating radiator 24 are provided in each space. For example, in a room in which a living room and a dining room are integrated, the first heating radiator 14 is disposed in the living room, and the second heating radiator 24 is disposed in the dining room.
The room 10 is provided with operating state setting means 11 (heating controller) that allows the user to set the operating state of the first heating radiator 14 and the operating state of the second heating radiator 24.
The heat source machine control means 31 is communicably connected to the operation state setting means 11 by wireless or wired (communication line T1), and can transmit and receive information to and from the operation state setting means 11.

The heating pipe path includes a heating-heated pipe 35, a heating-pipe branching means 45, a first heating-heated branch pipe 13, a second heating-heated branch pipe 23, a first heating-heat-dissipating mixed pipe 15, 2 It is comprised by the mixing pipe | tube 25 after heating radiation, the heating pipe mixing means 46, the piping 36 after heating radiation, the 1st heating bypass piping 61, and the 2nd heating bypass piping 62.
The post heating heating pipe 35 is connected to the discharge port of the heat source machine 30 and the inlet of the heating pipe branching means 45, and the heating heat medium discharged from the heat source machine 30 flows into the heating pipe branching means 45.
The branch pipe 13 after the first heating and heating is connected to the outlet of the heating pipe branching means 45 and the inlet of the first heating radiator 14, and the heating heat branched and discharged by the heating pipe branching means 45. The medium flows into the first heating radiator 14.
The second post-heating heating branching pipe 23 is connected to the outlet of the heating pipe branching means 45 and the inlet of the second heating radiator 24, and is heated by being branched and discharged by the heating pipe branching means 45. The medium flows into the second heating radiator 24.
The heating pipe branching means 45 is a branch header that discharges the heated heating medium into the plurality of paths, the other side of the heating-heated pipe 35, one side of the first heating-heated branch pipe 13, and One side of the branch pipe 23 after the second heating heating is connected. Then, the heating pipe branching unit 45 discharges the heating heat medium flowing from the post-heating heating pipe 35 to the first post-heating heating branch pipe 13 and the second post-heating heating branch pipe 23.

The first heating / radiating mixed pipe 15 is connected to the discharge port of the first heating radiator 14 and the inlet of the heating pipe mixing means 46 to heat the heating medium discharged from the first heating radiator 14. It flows into the pipe mixing means 46.
The second heating and heat dissipation mixed pipe 25 is connected to the outlet of the second heating radiator 24 and the inlet of the heating pipe mixing means 46, and heats the heating heat medium discharged from the second heating radiator 24. It flows into the pipe mixing means 46.
The post-heat radiation pipe 36 is connected to the discharge port of the heating pipe mixing unit 46 and the inlet of the heat source unit 30, and the heating heat medium discharged from the heating pipe mixing unit 46 flows into the heat source unit 30.
The heating pipe mixing means 46 is a mixing header that mixes and discharges the heating medium that has flowed in from a plurality of paths, and the other side of the first heating / radiation mixed pipe 15 and the second heating / radiation mixed pipe 25. Is connected to one side of the post-heat radiation pipe 36. Then, the heating pipe mixing means 46 mixes the heating heat medium flowing in from the first mixed pipe 15 after heat radiation and the second mixed pipe 25 after heat radiation and discharges it to the post-heat radiation pipe 36.
The first heating bypass pipe 61 is connected to any position of the first heating / heat-dissipating mixing pipe 15 and any position of the second heating / heat-branching pipe 23.
The second heating bypass pipe 62 is connected to any position of the second heating-heat-dissipating mixed pipe 25 and any position of the first heating-heated branch pipe 13.

Further, a first on-off valve 12, a second on-off valve 22, a first flow path switching valve 16, and a second flow path switching valve 26 described below are provided at predetermined positions on the heating piping path. Yes.
The 1st on-off valve 12 is provided in any position from the location where the heating piping branch means 45 in the branch pipe 13 after 1st heating heating is connected to the location where the 2nd heating bypass piping 62 is connected. The branch pipe 13 after the first heating and heating can be switched to a closed state or an open state.
The second on-off valve 22 is provided at any position from the part where the heating pipe branching means 45 is connected to the part where the first heating bypass pipe 61 is connected in the branch pipe 23 after the second heating and heating. The branch pipe 23 after the second heating and heating can be switched to a closed state or an open state.
The first on-off valve 12 and the second on-off valve 22 are valves that are controlled to be opened or closed, or valves whose opening degree is controlled by a duty ratio. Controlled based on.
The 1st flow path switching valve 16 is provided in the location where the 1st heating post-heat radiation mixing pipe 15 and the 1st heating bypass piping 61 are connected, and the heating flowed in from the 1st heating post-heat radiation mixing pipe 15 The heating medium can be switched so as to be discharged toward the first heating bypass pipe 61, or the heating heat medium flowing in from the first heating / radiating mixed pipe 15 is discharged toward the heating pipe mixing means 46. is there. The first flow path switching valve 16 is controlled based on a control signal from the heat source machine control means 31.
The second flow path switching valve 26 is provided at a location where the second heating and heat dissipation mixing pipe 25 and the second heating bypass pipe 62 are connected, and the heating that has flowed in from the second heating and heat dissipation mixing pipe 25. The heating medium can be switched so as to be discharged toward the second heating bypass pipe 62, or the heating heat medium flowing in from the mixing pipe 25 after the second heating radiation is discharged toward the heating pipe mixing means 46. is there. The second flow path switching valve 26 is controlled based on a control signal from the heat source machine control means 31.

With the above configuration, the following heating operations (1) to (5) are possible.
(1) Only the first heating radiator 14 is heated.
For example, the user operates the operation state setting means 11 to input the start of the heating operation of only the first heating radiator 14 and the heating level (strong, medium, weak, heating temperature, etc.). In this case, there is no request for the heating operation of the second heating radiator 24.
The operation information based on the input instruction is transmitted from the operation state setting unit 11 to the heat source unit control unit 31.
For example, the heat source device control means 31 recognizes the heating start request and the heating level of the first heating radiator 14, activates the heat source device 30 to heat the heating heat medium, and activates the first heating circulation pump 41. Then, circulation of the heating heat medium is started, the first on-off valve 12 is controlled to be in the open state, the second on-off valve 22 is controlled to be in the closed state, and the first flow path switching valve 16 is connected to the first post-heat-dissipating mixed pipe The heating heat medium flowing in from 15 is controlled to be discharged toward the heating pipe mixing means 46.
In this case, since the heat source machine control means 31 may control the second flow path switching valve 26 to which side, for example, the heating heat medium flowing from the second heating / radiating mixed pipe 25 is used. It controls to the side discharged toward the heating pipe mixing means 46.

(2) Only the second heating radiator 24 is heated.
For example, the user operates the operation state setting means 11 to input the start of the heating operation of only the second heating radiator 24 and the heating level (strong, medium, weak, heating temperature, etc.). In this case, there is no request for heating operation of the first heating radiator 14.
The operation information based on the input instruction is transmitted from the operation state setting unit 11 to the heat source unit control unit 31.
For example, the heat source unit control means 31 recognizes the heating start request and the heating level of the second heating radiator 24, activates the heat source unit 30 to heat the heating heat medium, and activates the first heating circulation pump 41. Then, circulation of the heating heat medium is started, the first opening / closing valve 12 is controlled to be closed, the second opening / closing valve 22 is controlled to be opened, and the second flow path switching valve 26 is connected to the second heating / radiating mixed pipe. The heating heat medium flowing in from 25 is controlled to be discharged toward the heating pipe mixing means 46.
In this case, since the heat source machine control means 31 may control the first flow path switching valve 16 to which side, for example, the heating heat medium flowing from the first heating / radiating mixed pipe 15 is used. It controls to the side discharged toward the heating pipe mixing means 46.

(3) A heating operation (parallel heating operation) in which the first heating radiator 14 and the second heating radiator 24 are connected in parallel to the heat source unit.
For example, the user operates the operation state setting means 11 to input the start of the heating operation of the first heating radiator 14 and the heating level (strong, medium, weak, heating temperature, etc.), and the second The start of the heating operation of the heating radiator 24 and the input of the heating level (strong, medium, weak, heating temperature, etc.) are instructed.
The operation information from the operation state setting unit 11 based on the input instruction is transmitted from the operation state setting unit 11 to the heat source machine control unit 31.
For example, the heat source unit control means 31 recognizes the heating start request and heating level of the first heating radiator 14 and the heating start request and heating level of the second heating radiator 24 and activates the heat source unit 30. Then, the heating heat medium is heated, the first heating circulation pump 41 is activated to start circulation of the heating heat medium, the first on-off valve 12 is controlled to be opened, and the second on-off valve 22 is controlled to be opened. Then, the first flow path switching valve 16 is controlled so as to discharge the heating heat medium flowing in from the first heating / radiating mixed pipe 15 toward the heating pipe mixing means 46, and the second flow path switching valve 26 is controlled. The heating heat medium flowing in from the second heating / radiating mixed pipe 25 is controlled to be discharged toward the heating pipe mixing means 46.
For example, the heat source unit control means 31 performs parallel heating for a second predetermined time (for example, about 1 hour) after starting the parallel heating operation of the first heating radiator 14 and the second heating radiator 24 as described above. After the operation is maintained and the second predetermined time has elapsed, the following (4) first series heating operation and (5) second series heating operation are performed every first predetermined time (for example, about 10 minutes). Alternatively, the heating operation may be performed while alternately switching to each other.
By performing the heating operation in parallel for the second predetermined time, the target heating level can be reached in a shorter time. And after the 2nd predetermined time passes, the heat-source equipment control means 31 performs the 1st series heating operation of (4) mentioned later and the 2nd series heating operation of (5) 1st from parallel heating operation. By performing the heating operation while alternately switching every predetermined time, it is possible to maintain heating more efficiently and to perform heating by the first heating radiator 14 and the second heating radiator 24 more uniformly.

(4) A heating operation in which the first heating radiator 14 and the second heating radiator 24 are connected in series with respect to the heat source unit, and the heating heating medium is circulated through the first heating radiator 14 first. (First series heating operation).
For example, the second predetermined time after the start of “(3) Heating operation (parallel heating operation) in which the first heating radiator 14 and the second heating radiator 24 are connected in parallel to the heat source device” is started. After the elapse of time, the following first series heating operation is performed for a first predetermined time, and after the first predetermined time has elapsed since the start of the first series heating operation, “(5) 2 Heating operation in which the heating radiator 24 and the first heating radiator 14 are connected in series, and first the heating operation in which the heating medium is distributed to the second heating radiator 24 (second series heating operation). Switching and heating by alternately switching the first series heating operation and the second series heating operation every first predetermined time.
In the first series heating operation, the heat source machine control means 31 controls the first on-off valve 12 to the open state, controls the second on-off valve 22 to the closed state, and controls the first flow path switching valve 16 to the first heating. The heating medium flowing from the mixed pipe 15 after heat radiation is controlled to be discharged toward the first heating bypass pipe 61, and the second flow path switching valve 26 is flowed from the mixed pipe 25 after second heat radiation. The heated heating medium is controlled to be discharged toward the heating pipe mixing means 46.

(5) A heating operation in which the second heating radiator 24 and the first heating radiator 14 are connected in series with respect to the heat source unit, and the heating operation in which the heating medium is circulated through the second heating radiator 24 first. (Second series heating operation).
For example, it is a heating operation in which the first heating radiator 14 and the second heating radiator 24 are connected in series with respect to the above-mentioned “(4) heat source machine, and the heating medium is first applied to the first heating radiator 14. After the first predetermined time has elapsed since the start of “circulating heating operation (first series heating operation)”, the following second series heating operation is performed for the first predetermined time, and the second series heating operation is started. After the first predetermined time has elapsed, “(4) the heating operation in which the first heating radiator 14 and the second heating radiator 24 are connected in series to the heat source machine, Switching to the heating operation (first series heating operation) in which the heating heat medium is circulated through the heating radiator 14, and heating is performed by alternately switching between the first series heating operation and the second series heating operation every first predetermined time. .
In the second series heating operation, the heat source device control means 31 controls the first on-off valve 12 to the closed state, controls the second on-off valve 22 to the open state, and controls the first flow path switching valve 16 to the first heating. The heating heat medium flowing from the mixed pipe 15 after heat radiation is controlled to be discharged toward the heating pipe mixing means 46, and the second flow path switching valve 26 is heated from the second mixed pipe 25 after heat radiation. Control is performed so that the heat medium is discharged toward the second heating bypass pipe 62.

As described above, using the first heating radiator 14 and the second heating radiator 24, it is possible to individually heat, heat in parallel, or heat in series. It is possible to heat more comfortably and more efficiently according to the heating state to be performed, and the heating operation efficiency of the heat source device can be further improved.
In the above description, when performing the heating operation (simultaneous operation) of the first heating radiator 14 and the second heating radiator 24, the parallel heating operation is performed until the second predetermined time elapses, and the second predetermined time is set. After the elapse of time, an example in which heating is performed while alternately switching between the first series heating operation and the second series heating operation at every first predetermined time has been described. For example, when both required heating levels are very high, the heating is performed in parallel. You may make it maintain the state of heating operation. Further, when the required heating level of the second heating radiator 24 is lower than the required heating level of the first heating radiator 14, the first series heating operation may be maintained, When the required heating level is lower than the required heating level of the second heating radiator 24, the second series heating operation may be maintained.

● [Heating system 1B of the second embodiment (FIG. 2)]
Next, the heating system 1B of 2nd Embodiment is demonstrated using FIG. The heating system 1B of the second embodiment shown in FIG. 2 is different from the heating system 1A of the first embodiment shown in FIG. 1 in that a second heating circulation pump 42 is added. Hereinafter, this difference will be mainly described.

  The second heating circulation pump 42 is provided at any position of the post-heating heating pipe 35 or the post-heating heat radiation pipe 36. The second heating circulation pump 42 is driven based on a control signal from the heat source unit control means 31, and the heating heat medium is caused to flow into the heat source unit 30 from the post-heat radiation pipe 36 and is heated by the combustion heat exchanger 33. The heating heat medium is driven to circulate so that the heating heat medium is discharged from the pipe 35 after heating and to supplement the circulation of the heating heat medium by the first heating circulation pump 41.

For example, in the case where only the first heating radiator 14 is heating-operated or the second heating radiator 24 is only heating-operated, the heat source controller 31 has a relatively small amount of heat radiation, and the circulation flow rate of the heating heat medium Therefore, only the first heating circulation pump 41 is driven.
Moreover, the heat source machine control means 31 is a case where the first heating radiator 14 and the second heating radiator 24 are heated in parallel, or the first heating radiator 14 and the second heating radiator 24 are heated in series. Then, since the heat radiation amount is relatively large and the circulation flow rate of the heating heat medium is relatively large, both the first heating circulation pump 41 and the second heating circulation pump 42 are driven.

  For example, in a case where an existing heating system in which only the first heating radiator 14 is laid is installed, additional construction is performed later to obtain a heating system as shown in FIG. 2 (second heating radiator 24). Even if the capacity of the existing first heating circulation pump 41 is insufficient, the first heating circulation pump 41 can be replaced by adding the second heating circulation pump 42. The capacity of the first heating circulation pump 41 can be supplemented.

● [Heating system 1C of the third embodiment (FIG. 3)]
Next, a heating system 1C according to a third embodiment will be described with reference to FIG. A heating system 1C according to the third embodiment shown in FIG. 3 has a third heating bypass pipe 63 and a third heating circulation pump 43 added to the heating system 1A according to the first embodiment shown in FIG. Is different. Hereinafter, this difference will be mainly described.

The third heating bypass pipe 63 is connected to any position of the post-heating heat radiation pipe 36 and any position of the post-heating heating pipe 35.
The third heating circulation pump 43 is provided at any position of the third heating bypass pipe 63. Moreover, the 3rd heating circulation pump 43 is driven based on the control signal from the heat-source-equipment control means 31, and when it is driven, at least a part of the heating heat medium from the heating / heat radiation post-pipe 36 is supplied to the post-heating / heating pipe 35. It is possible to lead to. Note that when the third heating circulation pump 43 is stopped, the heating heat medium does not flow into the third heating bypass pipe 63.

  For example, in the case where only the first heating radiator 14 is heating-operated or the second heating radiator 24 is only heating-operated, the heat source controller 31 has a relatively small amount of heat radiation, and the circulation flow rate of the heating heat medium Therefore, only the first heating circulation pump 41 is driven. Moreover, the heat source machine control means 31 is a case where the first heating radiator 14 and the second heating radiator 24 are heated in parallel, or the first heating radiator 14 and the second heating radiator 24 are heated in series. Then, since the heat radiation amount is relatively large and the circulation flow rate of the heating heat medium is relatively large, both the first heating circulation pump 41 and the third heating circulation pump 43 are driven.

  For example, in a case where an existing heating system in which only the first heating radiator 14 is laid is installed, additional construction is performed later to obtain a heating system as shown in FIG. 3 (second heating radiator 24). Etc.), even if the capacity of the existing first heating circulation pump 41 is insufficient, by adding the third heating bypass pipe 63 and the third heating circulation pump 43, the first heating circulation pump 41 The capacity of the first heating circulation pump 41 can be supplemented without replacing the circulation pump 41.

● [Heating system 1D of the fourth embodiment (FIG. 4)]
Next, a heating system 1D according to a fourth embodiment will be described with reference to FIG. The heating system 1D according to the fourth embodiment shown in FIG. 4 is different from the heating system 1A according to the first embodiment shown in FIG. 1 in that first temperature detection means 48A and 48A ′ are added. Different. Hereinafter, this difference will be mainly described.

48 A of 1st temperature detection means are provided in the position between the 1st heating radiator 14 and the 1st flow-path switching valve 16 in the mixing pipe | tube 15 after the 1st heating radiation, and the heating heat in the said position A detection signal corresponding to the temperature of the medium is output to the heat source machine control means 31.
The heat source machine control means 31 can recognize the temperature of the heating heat medium at the position where the first temperature detection means 48A is provided based on the detection signal from the first temperature detection means 48A.
The first temperature detection means 48A ′ is provided at any position between the second heating radiator 24 and the second flow path switching valve 26 in the second heating / heat dissipation mixed pipe 25, and the heating at the position is performed. A detection signal corresponding to the temperature of the heat medium is output to the heat source device control means 31.
The heat source machine control means 31 can recognize the temperature of the heating heat medium at the position where the first temperature detection means 48A ′ is provided based on the detection signal from the first temperature detection means 48A ′.
And when the heat source machine control means 31 carries out the heating operation of both the 1st heating radiator 14 and the 2nd heating radiator 24, instead of switching a parallel heating operation and a serial heating operation based on elapsed time conditions, for example. Based on the detected temperature of the heating medium, the heating operation is performed in parallel as shown in the following (3), (3-1), (3-2), (4), (5), or in series. Switch between heating operation.
In addition, the case of “(1) heating only the first heating radiator 14” and the case of “(2) heating only the second heating radiator 24” are the same as in the first embodiment. Since there is, description is abbreviate | omitted.

(3) A heating operation (parallel heating operation) in which the first heating radiator 14 and the second heating radiator 24 are connected in parallel to the heat source unit.
In this case, for example, the heat source unit control means 31 recognizes the heating start request and the heating level of the first heating radiator 14 and the heating start request and the heating level of the second heating radiator 24, and the second Parallel heating operation is performed after a predetermined time has elapsed or until the required heating level is reached.
The heat source machine control means 31 activates the heat source machine 30 to heat the heating heat medium, activates the first heating circulation pump 41 to start circulation of the heating heat medium, and controls the first on-off valve 12 to be in an open state. Then, the second on-off valve 22 is controlled to be in the open state, and the first flow path switching valve 16 discharges the heating heat medium flowing in from the first heating / radiating mixed pipe 15 toward the heating pipe mixing means 46. And the second flow path switching valve 26 is controlled to discharge the heating heat medium flowing in from the second heating / radiating mixed pipe 25 toward the heating pipe mixing means 46.

(3-1) When the required heating level of the first heating radiator 14 is higher than the required heating level of the second heating radiator 24 For example, during the parallel heating operation, the heat source unit control means 31 detects the first temperature. Based on the temperature of the heating medium detected based on the detection signal from the means 48A and the required heating level of the second heating radiator 24, the temperature of the heating medium detected is the first series heating operation (first heating operation). Even when the radiator 14 is heated first), when it is determined that the temperature of the second heating radiator 24 can be heated to the required heating level, the parallel heating operation to the first series heating operation (first heating radiation) The body 14 is switched to heating first.
The heat source unit control means 31 detects the heating heating medium detected based on the temperature of the heating heating medium detected based on the detection signal from the first temperature detection means 48A and the required heating level of the second heating radiator 24. When it is determined that the temperature is difficult to heat to the required heating level by the second heating radiator 24 when the first series heating operation is performed, the parallel heating operation is maintained.

Further, the heat source machine control means 31 performs the first series heating operation in which the first heating radiator 14 heats first, and the heating heat medium detected based on the detection signal from the first temperature detection means 48A. Based on the temperature and the required heating level of the second heating radiator 24, it is determined that the detected temperature of the heating heat medium is a temperature at which the second heating radiator 24 heated in series can be heated to the required heating level. In this case, the first series heating operation in which the first heating radiator 14 heats first is maintained.
Further, the heat source machine control means 31 performs the first series heating operation in which the first heating radiator 14 heats first, and the heating heat medium detected based on the detection signal from the first temperature detection means 48A. Based on the temperature and the required heating level of the second heating radiator 24, the detected temperature of the heating medium does not reach a temperature at which the second heating radiator 24 heated in series can be heated to the required heating level. When it determines, it returns from the 1st series heating operation heated previously with the 1st heating radiator 14 to parallel heating operation.
And when it returns to parallel heating operation, measurement of the 2nd predetermined time is restarted. Note that the number of times of switching from the parallel heating operation to the first series heating operation may be limited to a predetermined number.

(3-2) When the required heating level of the second heating radiator 24 is higher than the required heating level of the first heating radiator 14 For example, during the parallel heating operation, the heat source control unit 31 detects the first temperature. The temperature of the heating medium detected based on the detection signal from the means 48A ′ and the required heating level of the first heating radiator 14 is the second series heating operation (second Even when the heating radiator 24 is heated first, if it is determined that the temperature of the first heating radiator 14 can be heated to the required heating level, the parallel heating operation to the second series heating operation (second heating) The radiator 24 is switched to heating first.
The heat source unit control means 31 detects the heating heat detected based on the temperature of the heating medium detected based on the detection signal from the first temperature detection means 48A ′ and the required heating level of the first heating radiator 14. When it is determined that the temperature of the medium is a temperature at which it is difficult for the first heating radiator 14 to heat to the required heating level when the second series heating operation is performed, the parallel heating operation is maintained.

The heat source unit control means 31 detects the heating heat medium detected based on the detection signal from the first temperature detection means 48A ′ during the second series heating operation in which the second heating radiator 24 first heats. Based on the temperature of the first heating radiator 14 and the required heating level of the first heating radiator 14, it is determined that the detected temperature of the heating medium is a temperature at which the first heating radiator 14 heated in series can be heated to the required heating level. When it did, the 2nd series heating operation heated previously with the 2nd heating radiator 24 is maintained.
The heat source unit control means 31 detects the heating heat medium detected based on the detection signal from the first temperature detection means 48A ′ during the second series heating operation in which the second heating radiator 24 first heats. Based on the temperature of the first heating radiator 14 and the required heating level of the first heating radiator 14, the detected temperature of the heating medium does not reach the temperature at which the first heating radiator 14 heated in series can be heated to the required heating level. When it determines with, it returns from the 2nd series heating operation heated previously with the 2nd heating radiator 24 to parallel heating operation.
And when it returns to parallel heating operation, measurement of the 2nd predetermined time is restarted. Note that the number of times of switching from the parallel heating operation to the second series heating operation may be limited to a predetermined number.

(4) A heating operation in which the first heating radiator 14 and the second heating radiator 24 are connected in series with respect to the heat source unit, and the heating heating medium is circulated through the first heating radiator 14 first. (First series heating operation).
For example, when it is determined in (3-1) above that the heat source device control means 31 switches to the first series heating operation in which the first heating radiator 14 is first heated, the heat source device control means 31 Then, the second on-off valve 22 is switched from the open state to the closed state to maintain the state, and the first flow path switching valve 16 is mixed with the heating heat medium flowing from the first heating / heat dissipating mixing pipe 15 into the heating pipe. The heating heat medium flowing in from the first heating / radiating mixed pipe 15 is switched from the discharge side toward the means 46 to the discharge side toward the first heating bypass pipe 61 to maintain the state.
In addition, the 1st on-off valve 12 is controlled by the open state, and the 2nd flow-path switching valve 26 is the side which discharges the heating heat medium which flowed in from the 2nd heating radiation mixing pipe 25 toward the heating pipe mixing means 46. Be controlled.

(5) A heating operation in which the second heating radiator 24 and the first heating radiator 14 are connected in series with respect to the heat source unit, and the heating operation in which the heating medium is circulated through the second heating radiator 24 first. (Second series heating operation).
For example, when it is determined in (3-2) above that the heat source device control means 31 switches to the second series heating operation in which the second heating radiator 24 is first heated, the heat source device control means 31 The first on-off valve 12 is switched from the open state to the closed state to maintain the state, and the second flow path switching valve 26 is mixed with the heating heat medium flowing from the second heating post-heat dissipating mixing pipe 25 into the heating pipe. The heating heat medium flowing in from the second heating / radiating mixed pipe 25 is switched from the side discharging toward the means 46 to the side discharging toward the second heating bypass pipe 62, and this state is maintained.
The second on-off valve 22 is controlled to be in the open state, and the first flow path switching valve 16 is on the side for discharging the heating heat medium flowing in from the first heating / radiating mixed pipe 15 toward the heating pipe mixing means 46. Be controlled.

It should be noted that at least one of the first temperature detection means 48A and the first temperature detection means 48A ′ may be provided.
In addition, when the first temperature detection unit 48A is not provided and the first series heating operation in which the first heating radiator 14 is heated first is performed, the first heating radiator 14 and the second heating are performed. When the temperature of the heating medium after heating the radiator 24 (the temperature of the heating medium detected by the first temperature detecting means 48A ′) is too low with respect to the required heating level of the second heating radiator 24, You may make it switch to parallel heating operation.
Similarly, when the first temperature detection means 48A ′ is not provided and when the second series heating operation in which the second heating radiator 24 is heated first is performed, the second heating radiator 24 and the second When the temperature of the heating medium after heating the one heating radiator 14 (the temperature of the heating medium detected by the first temperature detection means 48A) is too low with respect to the required heating level of the first heating radiator 14 Alternatively, switching to parallel heating operation may be performed.
As described above, the first opening / closing valve 12, the second opening / closing valve 22, the first flow path switching valve 16, and the second flow path switching valve 26 are detected by the first temperature detection means 48A, 48A ′ (at least one of them). It is controlled according to the temperature condition based on the temperature of the heated heating medium.

● [Heating system 1E of the fifth embodiment (FIG. 5)]
Next, the heating system 1E of 5th Embodiment is demonstrated using FIG. The heating system 1E according to the fifth embodiment shown in FIG. 5 has a point that second temperature detecting means 48B and 48B ′ are added to the heating system 1A according to the first embodiment shown in FIG. Different. Hereinafter, this difference will be mainly described.

The second temperature detection means 48B is provided at any position between the second on-off valve 22 and the second heating radiator 24 in the second post-heating heating branch pipe 23, and the heating heat medium at the position is provided. A detection signal corresponding to the temperature is output to the heat source machine control means 31.
The heat source machine control means 31 can recognize the temperature of the heating heat medium at the position where the second temperature detection means 48B is provided based on the detection signal from the second temperature detection means 48B.
The second temperature detection means 48B ′ is provided at any position between the first on-off valve 12 and the first heating radiator 14 in the first post-heating heating branch pipe 13, and the heating heat medium at the position. A detection signal corresponding to the temperature is output to the heat source device control means 31.
The heat source machine control means 31 can recognize the temperature of the heating heat medium at the position where the second temperature detection means 48B ′ is provided based on the detection signal from the second temperature detection means 48B ′.
And when the heat source machine control means 31 carries out heating operation of both the 1st heating radiator 14 and the 2nd heating radiator 24, based on elapsed time conditions and the temperature of the detected heating heat medium, for example, it is as follows Next, switching between heating operation in parallel or heating operation in series is switched.
In addition, the case of “(1) heating only the first heating radiator 14” and the case of “(2) heating only the second heating radiator 24” are the same as in the first embodiment. Since there is, description is abbreviate | omitted.

(3) A heating operation (parallel heating operation) in which the first heating radiator 14 and the second heating radiator 24 are connected in parallel to the heat source unit.
In this case, it is the same as “(3) Heating operation (parallel heating operation) in which the first heating radiator 14 and the second heating radiator 24 are connected in parallel to the heat source machine” in the fourth embodiment. Since there is, description is abbreviate | omitted.

(3-1) When the required heating level of the first heating radiator 14 is higher than the required heating level of the second heating radiator 24 In this case, it is the same as the fourth embodiment, and the first temperature detecting means Instead of detecting the temperature of the heating medium based on the detection signal from 48A, the temperature of the heating medium is detected based on the detection signal from the second temperature detection means 48B.

(3-2) When the required heating level of the second heating radiator 24 is higher than the required heating level of the first heating radiator 14 In this case, it is the same as the fourth embodiment, and the first temperature detecting means Instead of detecting the temperature of the heating heat medium based on the detection signal from 48A ′, the temperature of the heating heat medium is detected based on the detection signal from the second temperature detection means 48B ′.

It should be noted that at least one of the second temperature detection unit 48B and the second temperature detection unit 48B ′ may be provided.
In the case where the second temperature detection means 48B is not provided and the first series heating operation in which the first heating radiator 14 heats first is performed, the first heating radiator 14 and the second heating radiator The temperature of the heating medium before heating at 24 (the temperature of the heating medium detected by the second temperature detecting means 48B ′) is the required heating level of the first heating radiator 14 and the temperature of the second heating radiator 24. When the temperature is not sufficient with respect to the required heating level, switching to the parallel heating operation may be performed.
Similarly, when the second temperature detecting means 48B ′ is not provided and the second heating heating body 24 is first heated in the second heating radiator 24, the second heating radiator 24 and the second heating radiator 24 The temperature of the heating medium before heating by the first heating radiator 14 (the temperature of the heating medium detected by the second temperature detecting means 48B) is the required heating level of the second heating radiator 24 and the first heating radiation. When the temperature is not sufficient with respect to the required heating level of the body 14, switching to the parallel heating operation may be performed.
Thus, the first on-off valve 12, the second on-off valve 22, the first flow path switching valve 16, and the second flow path switching valve 26 are detected by the second temperature detection means 48B, 48B ′ (at least one of them). It is controlled according to the temperature condition based on the temperature of the heated heating medium.

● [Heating system 1F of the sixth embodiment (FIG. 6)]
Next, the heating system 1F of 6th Embodiment is demonstrated using FIG. The heating system 1F according to the sixth embodiment shown in FIG. 6 has third temperature detecting means 48C and 48C ′ added to the heating system 1A according to the first embodiment shown in FIG. Different. Hereinafter, this difference will be mainly described.

The third temperature detection unit 48C is provided in the heat source unit 30 and outputs a detection signal corresponding to the temperature in the heat source unit 30 to the heat source unit control unit 31 as the outside air temperature.
The heat source machine control means 31 can recognize the temperature of the outside air based on the detection signal from the third temperature detection means 48C.
The third temperature detection unit 48C ′ is provided outside the heat source unit 30 and outputs a detection signal corresponding to the temperature outside the heat source unit 30 to the heat source unit control unit 31 as the outside air temperature.
The heat source machine control means 31 can recognize the temperature of the outside air based on the detection signal from the third temperature detection means 48C ′.
And when the heat source machine control means 31 carries out the heating operation of both the 1st heating radiator 14 and the 2nd heating radiator 24, for example, based on elapsed time conditions and the temperature of the detected outside air, as follows, Switch between heating operation in parallel or heating operation in series.
In addition, the case of “(1) heating only the first heating radiator 14” and the case of “(2) heating only the second heating radiator 24” are the same as in the first embodiment. Since there is, description is abbreviate | omitted.

For example, when the heat source unit control means 31 recognizes the heating start request and the heating level of the first heating radiator 14 and the heating start request and the heating level of the second heating radiator 24, the fifth embodiment Similar to the embodiment, the parallel heating operation is first performed.
Then, after the parallel heating operation, for example, when the temperature of the outside air detected based on the detection signal from at least one of the third temperature detection units 48C and 48C ′ is equal to or higher than the predetermined temperature, the heat source unit control unit 31 performs the parallel heating operation. Is switched to the first series heating operation or the second series heating operation, and when the detected outside air temperature is lower than the predetermined temperature, the parallel heating operation is maintained.
When switching from the parallel heating operation to the first series heating operation or the second series heating operation, for example, when the required heating level of the first heating radiator 14 is higher than the required heating level of the second heating radiator 24, the parallel heating operation is performed in parallel. The heating operation is switched to the first series heating operation, and when the required heating level of the second heating radiator 24 is higher than the required heating level of the first heating radiator 14, the parallel heating operation is switched to the second series heating operation.
When the required heating level of the first heating radiator 14 and the required heating level of the second heating radiator 24 are equal, the first series heating operation and the second series heating operation are alternately performed every first predetermined time. Heating operation may be performed while switching.

As described above, it is appropriately determined whether to perform the parallel heating operation according to the temperature of the outside air, or to perform the first series heating operation or the second series heating operation, and the heating is performed more comfortably and more efficiently. It is possible.
Thus, the first on-off valve 12, the second on-off valve 22, the first flow path switching valve 16, and the second flow path switching valve 26 are detected by the third temperature detection means 48C and 48C '(at least one of them). The temperature is controlled according to the temperature condition based on the temperature of the outside air.
It should be noted that at least one of the third temperature detection means 48C and the third temperature detection means 48C ′ may be provided.

● [Heating system 1G of the seventh embodiment (FIG. 7)]
Next, the heating system 1G of 7th Embodiment is demonstrated using FIG. The heating system 1G of the seventh embodiment shown in FIG. 7 is different from the heating system 1A of the first embodiment shown in FIG. 1 in that a flow path switching control means 50 is added. Hereinafter, this difference will be mainly described.

The flow path switching control means 50 is communicably connected to the operation state setting means 11 by wireless or wired (communication line T1A), and is connected to the heat source device control means 31 by wireless or wired (communication line T1B). The communication information transmitted / received between the first operating state setting means 11 and the heat source machine control means 31 is relayed.
The flow path switching control means 50 outputs a control signal for controlling the operations of the first flow path switching valve 16 and the second flow path switching valve 26.

The flow path switching control means 50 relays communication information between the operation state setting means 11 and the heat source machine control means 31, thereby instructing the heating operation start of the first heating radiator 14 and the second heating radiator 24. And the required heating level, the control state of the heat source machine control means 31, and the like can be recognized.
Thereby, the flow path switching control means 50 performs the heating operation of only the first heating radiator 14, the heating operation of only the second heating radiator 24, and the parallel heating operation of the first heating radiator 14 and the second heating radiator 24. The heating operation should be any one of the first series heating operation of the first heating radiator 14 and the second heating radiator 24 and the second series heating operation of the second heating radiator 24 and the first heating radiator 14. The first flow path switching valve 16 and the second flow path switching valve 26 can be appropriately controlled according to the determined heating operation and the determined heating operation.

● [Heating system 1H of the eighth embodiment (FIG. 8)]
Next, the heating system 1H of 8th Embodiment is demonstrated using FIG. The heating system 1H according to the eighth embodiment shown in FIG. 8 is different from the heating system 1G according to the seventh embodiment shown in FIG. A difference is that a control signal for controlling the on-off valve 12 and the second on-off valve 22 is input, and a control signal for controlling the first on-off valve 12 and the second on-off valve 22 is output from the flow path switching control means 51. Hereinafter, this difference will be mainly described.

The flow path switching control means 51 relays communication information transmitted and received between the operation state setting means 11 and the heat source machine control means 31 as in the seventh embodiment shown in FIG.
The flow path switching control means 51 includes a first on-off valve control wiring 31A that controls the first on-off valve 12 from the heat source device control means 31, and a second on-off valve that controls the second on-off valve 22. The control wiring 31B is input. The first on-off valve control wiring 31A is input to the flow path switching control means 51 without being connected to the first on-off valve 12, and the second on-off valve control wiring 31B is not connected to the second on-off valve 22. Input to the switching control means 51.
For example, in place of the heat source device control means 31, the flow path switching control means 51 includes a control signal from the first on-off valve control wiring 31A, a control signal from the second on-off valve control wiring 31B, and relayed communication information. Based on the above, the first on-off valve 12, the second on-off valve 22, the first flow path switching valve 16, and the second flow path switching valve 26 are controlled.

  Compared with the flow path switching control means 50 of the seventh embodiment shown in FIG. 7, the flow path switching control means 51 of the eighth embodiment shown in FIG. 8 is a first on-off valve and a second on-off valve. Is added, so that only the first heating radiator 14 is heated, only the second heating radiator 24 is heated, the parallel heating operation of the first heating radiator 14 and the second heating radiator 24, When starting any one of the first series heating operation of the first heating radiator 14 and the second heating radiator 24, the second series heating operation of the second heating radiator 24 and the first heating radiator 14, or When switching the heating operation, the control of the first on-off valve 12, the second on-off valve 22, the first flow path switching valve 16, and the second flow path switching valve 26 can be more reliably controlled without a time difference or the like.

● [Heating system 1J of the ninth embodiment (FIG. 9)]
Next, the heating system 1J of 9th Embodiment is demonstrated using FIG. The heating system 1J of the ninth embodiment shown in FIG. 9 is different from the heating system 1G of the seventh embodiment shown in FIG. 7 in that the flow path switching control means 52 includes the operating state setting means 11 and the heat source machine. The difference is that communication information transmitted and received with the control means 31 is not relayed, and communication information can be transmitted and received with the heat source device control means 31 wirelessly or by wire (communication line T2). Hereinafter, this difference will be mainly described.

The flow path switching control means 52 is connected to the heat source machine control means 31 wirelessly or by wire (communication line T2), can transmit / receive communication information to / from each other, and recognizes the control state of the heat source machine control means 31. Can do.
Further, the flow path switching control means 52 outputs a control signal for controlling the first flow path switching valve 16 and the second flow path switching valve 26 as in the seventh embodiment shown in FIG.

  For example, the flow path switching control unit 52 recognizes the control state of the heat source unit control unit 31 based on the communication information from the heat source unit control unit 31, and the heat source unit control unit 31 has only the first heating radiator 14. Heating operation, heating operation of only the second heating radiator 24, parallel heating operation of the first heating radiator 14 and the second heating radiator 24, first series heating of the first heating radiator 14 and the second heating radiator 24 It is recognized which of the operation and the second heating operation of the second heating radiator 24 and the second series heating operation of the first heating radiator 14 is started or performed. Then, the flow path switching control means 52 controls the first flow path switching valve 16 and the second flow path switching valve 26 according to the control state of the heat source machine control means 31 recognized based on the received communication information.

[The heating system 1K of the tenth embodiment (FIG. 10)]
Next, the heating system 1K of 10th Embodiment is demonstrated using FIG. The heating system 1K according to the tenth embodiment shown in FIG. 10 is different from the heating system 1J according to the ninth embodiment shown in FIG. A difference is that a control signal for controlling the on-off valve 12 and the second on-off valve 22 is input, and a control signal for controlling the first on-off valve 12 and the second on-off valve 22 is output from the flow path switching control means 53. Hereinafter, this difference will be mainly described.

Similarly to the ninth embodiment shown in FIG. 9, the flow path switching control means 53 is connected to the heat source machine control means 31 wirelessly or by wire (communication line T2), and can transmit / receive communication information to / from each other. The control state of the heat source machine control means 31 can be recognized.
The flow path switching control means 53 includes a first on-off valve control wiring 31A that controls the first on-off valve 12 from the heat source device control means 31 and a second on-off valve that controls the second on-off valve 22. The control wiring 31B is input. The first on-off valve control wiring 31A is input to the flow path switching control means 53 without being connected to the first on-off valve 12, and the second on-off valve control wiring 31B is not connected to the second on-off valve 22. Input to the switching control means 53.
For example, in place of the heat source unit control means 31, the flow path switching control means 53 is controlled by the control signal from the first on-off valve control wiring 31A, the control signal from the second on-off valve control wiring 31B, and the received communication information. Based on the above, the first on-off valve 12, the second on-off valve 22, the first flow path switching valve 16, and the second flow path switching valve 26 are controlled.

  The flow path switching control means 53 of the tenth embodiment shown in FIG. 10 is similar to the flow path switching control means 51 of the eighth embodiment shown in FIG. Are added, so that only the first heating radiator 14 is heated, only the second heating radiator 24 is heated, the parallel heating operation of the first heating radiator 14 and the second heating radiator 24, and the first heating. When starting any one of the first series heating operation of the radiator 14 and the second heating radiator 24 and the second series heating operation of the second heating radiator 24 and the first heating radiator 14, or the heating operation When switching, the control of the first on-off valve 12, the second on-off valve 22, the first flow path switching valve 16, and the second flow path switching valve 26 can be more reliably controlled without a time difference or the like.

● [Heating system 1L of the eleventh embodiment (FIG. 11)]
Next, the heating system 1L of 11th Embodiment is demonstrated using FIG.
The heating system 1L of the eleventh embodiment shown in FIG. 11 is provided with the second heating circulation pump 42 of the second embodiment shown in FIG. 2 in the heating system 1D of the fourth embodiment shown in FIG. A flow path obtained by adding the detection signals of the first temperature detection means 48A and 48A 'and the output of the second heating circulation pump 42 to the flow path switching control means 51 of the eighth embodiment shown in FIG. It is a heating system to which a switching control means 51A is added.
As described above, it is possible to construct a heating system in which several embodiments are combined, and the heating system used in the combination has the characteristics.

For example, in the heating system 1L shown in FIG. 11, the flow path switching control unit 51A relays communication between the heat source unit control unit 31 and the operation state setting unit 11, and the first heating heat radiation from the operation state setting unit 11 is performed. It is possible to recognize the heating instruction and required heating level of the body 14, the heating instruction and required heating level of the second heating radiator 24, the control state of the heat source machine control means 31, and the like.
The flow path switching control means 51A detects the information recognized based on the relayed communication information, the temperature of the heating heat medium detected using the first temperature detection means 48A, and the first temperature detection means 48A ′. Based on the temperature of the heated heating medium, etc., the heating operation of only the first heating radiator 14, the heating operation of only the second heating radiator 24, and the parallel heating operation of the first heating radiator 14 and the second heating radiator 24 Which heating operation should be performed, the first series heating operation of the first heating radiator 14 and the second heating radiator 24, or the second series heating operation of the second heating radiator 24 and the first heating radiator 14? Judging.
For example, the flow path switching control means 51A includes a control signal from the first on-off valve control wiring 31A, a control signal from the second on-off valve control wiring 31B, relayed communication information, and first temperature detection means 48A, 48A. The first on-off valve 12, the second on-off valve 22, the first flow path switching valve 16, the second flow path switching valve 26, and the second heating circulation pump based on the temperature of the heating heat medium detected using ' 42 is controlled.

● [Heating system 1M of the twelfth embodiment (FIG. 12)]
Next, a heating system 1M according to a twelfth embodiment will be described with reference to FIG.
The heating system 1M according to the twelfth embodiment shown in FIG. 12 is different from the heating system 1L according to the eleventh embodiment shown in FIG. The difference is that communication information can be transmitted / received to / from the heat source device control means 31 wirelessly or by wire (communication line T2) without relaying communication with the operation state setting means 11.
The heating system 1M according to the twelfth embodiment shown in FIG. 12 includes the second heating circulation pump 42 according to the second embodiment shown in FIG. 2 in the heating system 1D according to the fourth embodiment shown in FIG. A flow path obtained by adding the detection signals of the first temperature detection means 48A and 48A 'and the output of the second heating circulation pump 42 to the flow path switching control means 53 of the tenth embodiment shown in FIG. The difference lies in the switching control means 53A.
As described above, it is possible to construct a heating system in which several embodiments are combined, and the heating system used in the combination has the characteristics.

For example, in the heating system 1M shown in FIG. 12, the flow path switching control unit 53A can recognize the control state of the heat source unit control unit 31 based on the communication information from the heat source unit control unit 31.
Then, the flow path switching control means 53A detects the information recognized based on the received communication information, the temperature of the heating medium detected using the first temperature detection means 48A, and the first temperature detection means 48A ′. Based on the temperature of the heated heating medium, etc., the heating operation of only the first heating radiator 14, the heating operation of only the second heating radiator 24, and the parallel heating operation of the first heating radiator 14 and the second heating radiator 24 Which heating operation should be performed, the first series heating operation of the first heating radiator 14 and the second heating radiator 24, or the second series heating operation of the second heating radiator 24 and the first heating radiator 14? Judging.
For example, the flow path switching control means 53A includes a control signal from the first on-off valve control wiring 31A, a control signal from the second on-off valve control wiring 31B, received communication information, and first temperature detection means 48A, 48A. The first on-off valve 12, the second on-off valve 22, the first flow path switching valve 16, the second flow path switching valve 26, and the second heating circulation pump based on the temperature of the heating heat medium detected using ' 42 is controlled.

The heating system of the present invention is not limited to the configuration, operation, and the like described in the present embodiment, and various modifications, additions, and deletions can be made without changing the gist of the present invention.
The eleventh embodiment and the twelfth embodiment are shown as examples in which some of the first to tenth embodiments are combined, but a plurality of embodiments are combined. The heating system is not limited to the eleventh embodiment and the twelfth embodiment, and it is possible to construct a heating system in which any embodiments are combined.

DESCRIPTION OF SYMBOLS 1A-1H, 1J-1M Heating system 10 Room 11 Operation state setting means 12 1st on-off valve 13 Branch piping after 1st heating heating 14 1st heating radiator 15 Mixing piping after 1st heating radiation 16 1st flow-path switching valve 22 2nd on-off valve 23 Branch piping after 2nd heating heating 24 2nd heating radiator 25 Mixing piping after 2nd heating radiation 26 2nd flow-path switching valve 30 Heat source machine 31 Heat source machine control means 31A 1st on-off valve control wiring 31B Second open / close valve control wiring 41 First heating circulation pump 42 Second heating circulation pump 43 Third heating circulation pump 45 Heating pipe branching means 46 Heating pipe mixing means 48A, 48A 'First temperature detection means 48B, 48B' Second temperature Detection means 48C, 48C 'Third temperature detection means 50-53, 51A, 53A Flow path switching control means 61 First heating bypass piping 62 Second heating bypass arrangement Pipe 63 3rd heating bypass piping T1, T2, T1A, T1B Communication line

Claims (10)

A heat source for heating the heating medium;
A first heating radiator and a second heating radiator connected by a heating piping path through which a heating heat medium circulating between the heat source units circulates;
In a heating system comprising: an operating state setting means that allows a user to set the operating state of the first heating radiator and the second heating radiator.
The first heating radiator and the second heating radiator are installed in the same room,
The heating piping path is
A heating post-heating pipe that flows into the heating pipe branching means the heating heat medium discharged from the heat source unit;
A first post-heating-heating branch pipe that flows into the first heating radiator, the heating heat medium branched and discharged by the heating pipe branching means;
A second heating post-heating branch pipe that flows into the second heating radiator from the heating heat medium branched and discharged by the heating pipe branching means;
The first heating post-heat radiation mixed pipe which flows the heating heat medium discharged from the first heating radiator into the heating pipe mixing means;
A second heating post-heat radiation mixed pipe for flowing the heating heat medium discharged from the second heating radiator into the heating pipe mixing means;
A heating post-heat radiation pipe that flows into the heat source unit the heating heat medium mixed and discharged by the heating pipe mixing means;
A first heating bypass pipe connected to any one of the first heating / heat-dissipating mixing pipes and any one of the second heating / heating-branching pipes;
A second heating bypass pipe connected to any position of the second mixed pipe after heat dissipation and any position of the branch pipe after the first heating heating;
The heating pipe branching means;
The heating pipe mixing means;
It consists of
The heat source machine is provided with a first heating circulation pump for circulating a heating heat medium,
A branch after the first heating and heating is provided at any position from the part where the heating pipe branching means is connected to the part where the second heating bypass pipe is connected in the branch pipe after the first heating and heating. A first on-off valve capable of switching the piping to a closed state or an open state is provided;
A branch after the second heating and heating is provided at any position from the part where the heating pipe branching means is connected in the branch pipe after the second heating and heating to the part where the first heating bypass pipe is connected. A second on-off valve is provided that can switch the pipe between a closed state and an open state;
At the place where the first heating post-heat radiation mixing pipe and the first heating bypass pipe are connected, the heating heat medium flowing in from the first heating heat radiation mixing pipe is directed toward the first heating bypass pipe. A switchable first flow path switching valve is provided so as to discharge or discharge the heating heat medium flowing in from the first heating / radiating mixed pipe toward the heating pipe mixing means,
At the place where the second heating and heat dissipation mixed pipe and the second heating bypass pipe are connected, the heating heat medium flowing in from the second heating and heat dissipation mixed pipe is directed toward the second heating bypass pipe. A switchable second flow path switching valve is provided so as to discharge or to discharge the heating heat medium flowing in from the second heating / radiating mixed pipe toward the heating pipe mixing means,
Heating system. The heating system according to claim 1,
A second heating circulation pump that circulates a heating heat medium in addition to the first heating circulation pump is provided at any position of the piping after heating and heat dissipation or the piping after heating and heating.
Alternatively, a third heating bypass pipe connected to any position of the heating post-heat radiation pipe and any position of the heating post-heating pipe is provided, and the third heating bypass pipe includes the post-heating heating pipe. A third heating circulation pump capable of guiding at least a part of the heating heat medium from the pipe to the post-heating heating pipe is provided,
Heating system. The heating system according to claim 1 or 2,
Any position between the first heating radiator and the first flow path switching valve in the first heating-radiation mixing pipe, or the second heating radiator and the first in the second heating-heat radiation mixing pipe. At least one of the positions between the two flow path switching valves is provided with a first temperature detection means,
The first on-off valve, the second on-off valve, the first flow path switching valve, and the second flow path switching valve are temperature conditions based on the temperature of the heating heat medium detected by the first temperature detecting means. Controlled according to the
Heating system. The heating system according to claim 1 or 2,
Any position between the first on-off valve and the first heating radiator in the branch pipe after the first heating / heating, or the second on-off valve and the second heating / radiation in the branch pipe after the second heating / heating. At least one of the positions between the bodies is provided with second temperature detection means,
The first on-off valve, the second on-off valve, the first flow path switching valve, and the second flow path switching valve are temperature conditions based on the temperature of the heating heat medium detected by the second temperature detecting means. Controlled according to the
Heating system. The heating system according to claim 1 or 2,
At least one of the inside of the heat source machine or the outside of the heat source machine is provided with a third temperature detecting means capable of detecting the outside air temperature,
The first on-off valve, the second on-off valve, the first flow path switching valve, and the second flow path switching valve are in accordance with a temperature condition based on an outside air temperature detected by the third temperature detecting means. Controlled,
Heating system. The heating system according to claim 1 or 2,
When performing the heating operation of the first heating radiator and the heating operation of the second heating radiator,
Heating while alternately switching between the first series heating operation and the second series heating operation every first predetermined time,
In the first series heating operation,
The first on-off valve is controlled to be in an open state;
The second on-off valve is controlled in a closed state;
The first flow path switching valve is controlled to the side that discharges the heating heat medium from the first heating and heat dissipation mixed pipe toward the first heating bypass pipe,
The second flow path switching valve is controlled to the side that discharges the heating heat medium from the second heating / radiating mixed piping toward the heating piping mixing means,
In the second series heating operation,
The first on-off valve is controlled to be closed;
The second on-off valve is controlled to be in an open state;
The first flow path switching valve is controlled to the side that discharges the heating heat medium from the first heating and heat dissipation mixing pipe toward the heating pipe mixing means,
The second flow path switching valve is controlled to the side that discharges the heating heat medium from the second heating and heat dissipation mixed pipe toward the second heating bypass pipe.
Heating system. The heating system according to claim 6,
During the period from the start of the heating operation of the first heating radiator and the heating operation of the second heating radiator until the second predetermined time is reached, heating is performed in a parallel heating operation, and the second predetermined time is reduced. After the elapse of time, heating is performed while alternately switching between the first series heating operation and the second series heating operation every first predetermined time.
In the parallel heating operation,
The first on-off valve is controlled to be in an open state;
The second on-off valve is controlled to be in an open state;
The first flow path switching valve is controlled to the side that discharges the heating heat medium from the first heating and heat dissipation mixing pipe toward the heating pipe mixing means,
The second flow path switching valve is controlled to the side that discharges the heating heat medium from the second heating / radiation mixed pipe toward the heating pipe mixing means,
Heating system. It is a heating system as described in any one of Claims 1-7,
The heat source machine includes a heat source machine control means capable of controlling the first on-off valve and the second on-off valve,
A flow path switching control means for relaying transmission / reception of communication information between the heat source machine control means and the operation state setting means,
The flow path switching control means controls the first flow path switching valve and the second flow path switching valve based on the relayed communication information.
Heating system. It is a heating system as described in any one of Claims 1-7,
The heat source machine includes a heat source machine control means capable of controlling the first on-off valve and the second on-off valve,
It does not relay transmission / reception of communication information between the heat source unit control unit and the operation state setting unit, and includes a flow path switching control unit capable of transmitting / receiving communication information to / from the heat source unit control unit,
The flow path switching control means controls the first flow path switching valve and the second flow path switching valve based on the received communication information.
Heating system. The heating system according to claim 8 or 9,
The first on-off valve control wiring capable of controlling the first on-off valve and the second on-off valve control wiring capable of controlling the second on-off valve from the heat source device control means include the first on-off valve and the second on-off valve, respectively. Is input to the flow path switching control means without being connected to
The flow path switching control means includes
The first on-off valve, the second on-off valve, the first flow path switching valve, and the second flow path switching valve can be controlled,
Based on the control signal from the first on-off valve control wiring, the control signal from the second on-off valve control wiring, and the relayed or received communication information, the first on-off valve and the second on-off valve Controlling the first flow path switching valve and the second flow path switching valve;
Heating system.

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