JP2019060556A - Heat source device - Google Patents

Abstract

To provide a heat source device which can cope with refrigerant leakage of each heat source unit with refrigerant sensors of less number than the number of heat source units, and reduction of cost and simplification of electric wiring are thus achieved.SOLUTION: At least one refrigerant sensor is provided in an indoor space in which a plurality of heat source units are provided. When the refrigerant sensor senses refrigerant, alarm means issues an alarm and a controller stops the operation of each of the heat source units.SELECTED DRAWING: Figure 1

Description

  An embodiment of the present invention relates to a heat source apparatus provided with a plurality of heat source units.

  There is known a heat source apparatus that includes a plurality of heat source units and supplies cold water or hot water obtained by the operation of the heat source units to a load. The heat source unit is also referred to as a water-cooled chiller and carries one or more refrigeration cycles. As a refrigerant with which this refrigeration cycle is filled, for example, R32 refrigerant, which has a smaller global warming potential (GWP) than conventional R410A refrigerant and R407C refrigerant, is used.

  A refrigerant with a small global warming potential has flammability (also referred to as slight flammability). When this refrigerant leaks from piping etc. of the refrigeration cycle and stagnates, the stagnated refrigerant becomes high in concentration and becomes easy to ignite. As a safety measure, refrigerant sensors are respectively attached to a plurality of heat source units.

JP 2003-42631 A

  When refrigerant sensors are respectively attached to a plurality of heat source units, the cost increases because the same number or more of refrigerant sensors as the number of heat source units are used. Further, when installing each heat source unit, it is necessary to wire and connect each refrigerant sensor to the control substrate of each heat source unit. This work is a heavy burden on workers.

  The object of the embodiment of the present invention is to provide a heat source device capable of coping with refrigerant leakage of each heat source unit with a smaller number of refrigerant sensors than the number of heat source units, thereby achieving cost reduction and simplification of wiring. It is.

  The heat source apparatus according to claim 1 comprises a plurality of heat source units, at least one refrigerant sensor disposed in an indoor space in which the heat source units are installed, and alarm means for emitting an alarm when the refrigerant sensor detects a refrigerant. And a controller configured to stop the operation of the plurality of heat source units when the refrigerant sensor detects a refrigerant.

FIG. 1 is a diagram showing a configuration of a first embodiment. The figure which shows the structure of 2nd Embodiment. The figure which shows the structure of 3rd Embodiment. The figure which shows the structure of 4th Embodiment. The figure which shows the structure of 5th Embodiment. The figure which shows the structure of 6th Embodiment.

[1] First Embodiment
A first embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, a plurality of heat source units 1a, 1b,... 1n are arranged side by side in the indoor space of the machine room A, and water pipes 3a, 3b, 3c, 3d are provided in these heat source units 1a, 1b,. It is connected. The water pipe 3a guides the water flowing out of the radiator (also referred to as a radiator), which is a load, to the second heat exchangers in the heat source units 1a to 1n. The water pipe 3b guides the cold water or the hot water flowing out of the second heat exchangers in the heat source units 1a to 1n to the radiator. The water pipe 3c guides the water flowing out of the cooling tower or the like to the first heat exchangers in the heat source units 1a to 1n. The water pipe 3d guides the heat source water flowing out of the first heat exchangers in the heat source units 1a to 1n to the cooling tower or the like.

  The heat source unit 1a has a heat pump type refrigeration cycle in which a refrigerant is circulated by sequentially connecting a compressor, a four-way valve, a first heat exchanger, an expansion valve, a second heat exchanger, etc. Is introduced into the water flow path of the second heat exchanger by the suction pressure of the use side water pump, and the introduced water is heated or cooled by refrigerant circulation by the operation of the heat pump type refrigeration cycle, and the heated or cooled water is used side water The water is supplied to the water pipe 3b by the discharge pressure of the pump. The water in the water pipe 3c is introduced into the water flow path of the first heat exchanger by the suction pressure of the heat source water pump, and the introduced water is cooled or heated by refrigerant circulation by the operation of the heat pump type refrigeration cycle, and the cooled or heated water Are discharged to the water pipe 3d by the discharge pressure of the heat source water pump. Further, the heat source unit 1a is mounted with a unit controller (controller) 2a that controls the operation of the heat source unit 1a. For example, R32 refrigerant, which has a smaller global warming potential (GWP) than the R410A refrigerant or the R407C refrigerant, is used as the refrigerant to be charged into the heat pump type refrigeration cycle. The R32 refrigerant has a small global warming potential, but has a flammability (also referred to as slight flammability) that is easily ignited (or ignited) when reaching a predetermined concentration.

  The other heat source units 1b to 1n also have the same configuration as the heat source unit 1a, and are mounted with unit controllers 2b to 2n for operation control, respectively.

  The unit controllers 2 a to 2 n are connected to the remote controller 10 by wiring. The remote controller 10 has an operating unit (operating means) 10a for setting operating conditions and a display 10b, and the heat source units 1a to 1n according to the operation of the operating unit 10a by the user and via the unit controllers 2a to 2n. Control the operation of The remote controller 10 is attached to the vicinity of the heat source unit 1a in the machine room A or the wall surface of the control room where the user is present.

  When the gas refrigerant leaks from any of the heat source units 1a to 1n, the leaked gas refrigerant stagnates in the indoor space of the machine room A. When the liquid refrigerant leaks from any of the heat source units 1a to 1n, the leaked liquid refrigerant evaporates to be a gas refrigerant, and the gas refrigerant stagnates in the indoor space of the machine room A.

  As a safety measure, for example, one refrigerant sensor 4 whose number is smaller than the number of heat source units 1a to 1n is disposed at an appropriate place in the indoor space of the machine room A. The refrigerant sensor 4 always operates with the commercial AC power supply voltage introduced into the machine room A or the voltage of the built-in battery, and when the refrigerant leaking from any of the heat source units 1a to 1n is present in the machine room A, (Gas refrigerant) is detected.

  The refrigerant sensor 4 is connected to the leak control unit 5 by wire, and the alarm control unit 6 and the display 7 are connected by wire to the leak control unit 5. The leak control unit 5 constitutes alarm means together with the alarm 6 and the display 7, detects the concentration P1 of the refrigerant present in the machine room A from the output signal of the refrigerant sensor 4, and displays the numerical value of the detected concentration P1. At 7, an analog display is made in a bar graph, and drive control of the alarm 6 is performed according to the detected density P1.

  Regarding this drive control, when the detected concentration P1 is equal to or higher than the set value Ps, the leak control unit 5 determines that the refrigerant leaks in the machine room A and the refrigerant sensor 4 detects the leaked refrigerant. An alarm (first alarm) indicating that there is a refrigerant leakage in the machine room A is issued by ringing of the alarm 6 (buzzer generation) or light emission. Since the display 7 has a display scale of the set value Ps, the user can know at a glance whether the detected density P1 is equal to or more than the set value Ps. The leak control unit 5, the alarm 6, and the display 7 are disposed in the vicinity of the machine room A or in a control room where a user is present.

  The leak control unit 5 and the remote controller 10 are connected by wiring. With this wiring, the leak control unit 5 sends detected concentration information D1 for notifying the detected concentration P1 to the remote controller 10, and alarm information for notifying that the detected concentration P1 is the set value Ps or more. Send D2 to the remote controller 10.

  The remote controller 10 recognizes the detected concentration P1 from the detected concentration information D1 and displays it on the display 10b, and when receiving the alarm information D2 (that is, when the refrigerant sensor 4 detects the leakage of the refrigerant), all the heat source units 1a Immediately stop the operation of ~ 1n.

  According to such a configuration, it is possible to detect the leakage of the refrigerant from any one of the heat source units 1a to 1n by the refrigerant sensor 4 whose number is smaller than the number of the heat source units 1a to 1n and issue an alarm. Since the number of refrigerant sensors 4 is small, the cost can be reduced and the wiring can be simplified. As a result, the wiring operation at the time of installing the heat source units 1a to 1n becomes easy, and the burden on the workers can be reduced.

  Since the operation of all the heat source units 1a to 1n is stopped simultaneously with the occurrence of the alarm, the leakage of the refrigerant does not continue unnecessarily.

  Since the detected density P1 is displayed by the display 7 and the remote controller 10, it is possible to accurately inform the user or the administrator what the detected density P1 at the time of the alarm is actually.

  [2] A second embodiment of the present invention will be described.

  In the second embodiment, as shown in FIG. 2, the refrigerant sensor 4 is connected by wire to both the leak control unit 5 and the remote controller 10.

  The remote controller 10 detects the concentration P1 of the refrigerant present in the machine room A from the output signal of the refrigerant sensor 4, and displays numerical values of the detected concentration P1 on the display 10b as characters or images, and the detected concentration P1 is a set value If it is Ps or more, the operation of all the heat source units 1a to 1n in the machine room A is immediately stopped under the judgment that the refrigerant leaks in the machine room A and the refrigerant sensor 4 detects the leaked refrigerant. Do.

  Other configurations, controls, and effects are the same as in the first embodiment.

  [3] A third embodiment of the present invention will be described.

  In the third embodiment, as shown in FIG. 3, the remote controller 10 is attached to the heat source unit 1 a.

  Other configurations, controls, and effects are the same as in the first embodiment.

  [4] A fourth embodiment of the present invention will be described.

  In the fourth embodiment, as shown in FIG. 4, a plurality of heat source units 11a, 11b,... 11n forming a second group are installed side by side in an indoor space of a machine room B different from the machine room A. Water piping 3a, 3b, 3c, 3d is connected to heat source unit 11a-11n. The plurality of heat source units 1a to 1n in the machine room A form a first group.

  The heat source units 11a to 11n have the same configuration as the heat source units 1a to 1n, and use the same refrigerant as the heat source units 1a to 1n.

  The heat source units 11a to 11n are mounted with unit controllers 12b to 12n for operation control, respectively.

  The unit controllers 12 a, 12 b,... 12 n are connected to the remote controller 10 by wiring. The remote controller 10 controls the operation of the heat source units 1a to 1n and 21a to 21n according to the operation of the operation unit 10a by the user and via the unit controllers 2a to 2n and 12a to 12n. The remote controller 10 is attached to the wall of the control room where the user is located.

  When the gas refrigerant leaks from any of the heat source units 11 a to 11 n, the leaked gas refrigerant stagnates in the indoor space of the machine room B. When the liquid refrigerant leaks from any of the heat source units 11 a to 11 n, the leaked liquid refrigerant evaporates to be a gas refrigerant, and the gas refrigerant stagnates in the indoor space of the machine room B.

  At an appropriate location in the indoor space of the machine room B, for example, one refrigerant sensor (second refrigerant sensor) 14 whose number is smaller than the number of the heat source units 11a to 11n is disposed. The refrigerant sensor 14 always operates according to the commercial AC power supply voltage introduced into the machine room B or the voltage of the built-in battery, and when the refrigerant leaking from any of the heat source units 11a to 11n exists in the machine room B, the refrigerant (Gas refrigerant) is detected.

  The refrigerant sensor 14 is wire connected to the leak control unit 5, and the alarm control devices 6a and 6b and the indicators 7a and 7b are wire connected to the leak control unit 5. Leakage control unit 5 constitutes alarm means together with alarms 6a and 6b and indicators 7a and 7b, and detects concentrations P1 and P2 of refrigerant present in machine chambers A and B from output signals of refrigerant sensors 4 and 14, respectively. The numerical values of the detected densities P1 and P2 are displayed on the displays 7a and 7b in the form of bar graphs in an analog manner, respectively, and the alarm devices 6a and 6b are driven and controlled according to the detected densities P1 and P2.

  Regarding this drive control, when the detected concentration P1 in the machine room A is equal to or higher than the set value Ps, the leakage control unit 5 detects that the refrigerant leaks in the machine room A and the refrigerant sensor 4 detects the leaked refrigerant. Under the judgment, an alarm (first alarm) indicating that the refrigerant is leaked in the machine room A is issued by ringing of the alarm 6a (buzzer generation) or light emission. Since the display 7a has a display scale of the set value Ps, it can be known at a glance whether the detected density P1 in the machine room A is higher than the set value Ps. Furthermore, when the detected concentration P2 in the machine room B is equal to or higher than the set value Ps, the leak control unit 5 determines that the refrigerant leaks in the machine room B and the refrigerant sensor 14 detects the leaked refrigerant. In addition, an alarm (second alarm) indicating that the refrigerant leaks in the machine room B is issued by the alarm 6b (buzzer generation) or light emission. Since the display 7b has a display scale of the set value Ps, the user can know at a glance whether the detected density P2 in the machine room B is equal to or more than the set value Ps. The ringing or light emission pattern of the alarm 6b is different from the ringing or light emission pattern of the alarm 6a. The leak control unit 5, the alarm devices 6a and 6b, and the indicators 7a and 7b are disposed in a control room where the user is located.

  The leak control unit 5 also sends detected concentration information D1a for notifying the detected concentration P1 to the remote controller 10, and sends detected concentration information D1b for notifying the detected concentration P2 to the remote controller 10. Furthermore, the leak control unit 5 sends alarm information (first alarm information) D2a for notifying that the detected density P1 is higher than the set value Ps to the remote controller 10, and the detected density P2 is higher than the set value Ps. Alarm information (second alarm information) D2b for notifying that there is a notification is sent to the remote controller 10.

  The remote controller 10 recognizes the detected concentration P1 from the detected concentration information D1a, displays it on the display 10b, and receives the alarm information D2a (that is, when the refrigerant sensor 4 detects the leakage of the refrigerant). The operation of all the heat source units 1a to 1n is immediately stopped. Further, the remote controller 10 recognizes the detected concentration P2 from the detected concentration information D1b and displays it on the display 10b, and receives the alarm information D2b (that is, when the refrigerant sensor 14 detects a leakage of the refrigerant). Immediately stop the operation of all the heat source units 11a to 11n.

  According to such a configuration, it is possible to detect a leak of refrigerant from any of the heat source units 1a to 1n of the first group with a smaller number of refrigerant sensors 4 than the number of heat source units 1a to 1n and issue an alarm. In addition, it is possible to issue an alarm by detecting the leakage of the refrigerant from any of the heat source units 11a to 11n of the second group with the refrigerant sensors 14 whose number is smaller than the number of the heat source units 11a to 11n. Since the number of refrigerant sensors can be reduced as much as possible, the cost can be reduced and the wiring can be simplified. As a result, the wiring work at the time of installing the heat source units 1a to 1n and 11a to 11n becomes easy, and the burden on the workers can be reduced.

  When generating an alarm for refrigerant leakage in the machine room A, the operation of all the heat source units 1a to 1n in the machine room A is stopped, so the refrigerant leakage in the machine room A does not continue unnecessarily. Since the operation of all the heat source units 11a to 11n in the machine room B is stopped when an alarm for refrigerant leakage in the machine room B is generated, the leakage of the refrigerant in the machine room B is not continued unnecessarily.

  Since the detected densities P1 and P2 are displayed by the displays 7a and 7b and the remote controller 10, it is possible to accurately notify the user or the administrator of the detected densities P1 and P2 when an alarm occurs.

  Other configurations, controls, and effects are the same as in the first embodiment.

  [5] A fifth embodiment of the present invention will be described.

  In the fifth embodiment, as shown in FIG. 5, a plurality of heat source units 21a, 21b,... 21n of the third group are installed side by side in the indoor space of the machine room C different from the machine rooms A, B. Water piping 3a, 3b, 3c, 3d is connected to heat source unit 21a-21n.

  The heat source units 21a to 21n have the same configuration as the heat source units 1a to 1n and 11a to 11n, and use the same R32 refrigerant as the heat source units 1a to 1n and 11a to 11n. Further, the heat source units 21a to 21n respectively mount unit controllers 22a, 22b,... 22n for operation control.

  The unit controllers 2a to 2n of the heat source units 1a to 1n are connected by wiring to the remote controller 10A. The remote controller 10A is attached to the vicinity of the heat source unit 1a in the machine room A or the wall surface of the control room where the user is present, and according to the operation of the operation unit 10a by the user and through the unit controllers 2a to 2n Control the operation of units 1a-1n.

  The unit controllers 12a to 12n of the heat source units 11a to 11n are connected by wiring to the remote controller 10B. The remote controller 10B is attached to the vicinity of the heat source unit 11a in the machine room B or on the wall surface of the control room where the user is present, and according to the operation of the operation unit 10a by the user and through the unit controllers 12a to 12n It controls the operation of units 11a-11n.

  The unit controllers 22a to 22n of the heat source units 21a to 21n are connected by wiring to the remote controller 10C. The remote controller 10C is attached to the vicinity of the heat source unit 21a in the machine room C or on the wall surface of the control room where the user is present, and according to the operation of the operation unit 10a by the user, through the unit controllers 22a to 22n The operation of the units 21a to 21n is controlled.

  When the gas refrigerant leaks from any of the heat source units 21a to 21n, the leaked gas refrigerant stagnates in the indoor space of the machine room C. When the liquid refrigerant leaks from any of the heat source units 21a to 21n, the leaked liquid refrigerant evaporates to be a gas refrigerant, and the gas refrigerant stagnates in the indoor space of the machine room C.

  At an appropriate location in the indoor space of the machine room C, for example, one refrigerant sensor (third refrigerant sensor) 24 whose number is smaller than the number of the heat source units 21a to 21n is disposed. The refrigerant sensor 24 always operates according to the commercial AC power supply voltage introduced into the machine room C or the voltage of the built-in battery, and when the refrigerant leaking from any of the heat source units 21a to 21n exists in the machine room C, the refrigerant (Gas refrigerant) is detected.

  The refrigerant sensor 24 is wire connected to the leak control unit 5, and the alarm control devices 6a, 6b and 6c and the indicators 7a, 7b and 7c are wire connected to the leak control unit 5. Leakage control unit 5 constitutes alarm means together with alarms 6a, 6b, 6c and indicators 7a, 7b, 7c, and the refrigerants present in machine chambers A, B, C from the output signals of refrigerant sensors 4, 14, 24. These concentrations P1, P2 and P3 are detected respectively, and the numerical values of the detected concentrations P1, P2 and P3 are displayed in the form of bar graphs on the displays 7a, 7b and 7c respectively in analog form and according to the detected concentrations P1, P2 and P3 The drive control of each of the alarm devices 6a, 6b and 6c is performed.

  Regarding this drive control, when the detected concentration P3 in the machine room C is equal to or higher than the set value Ps, the leak control unit 5 detects that the refrigerant leaks in the machine room C and the refrigerant sensor 24 detects the leaked refrigerant. Under the judgment, an alarm (third alarm) indicating that the refrigerant leaks in the machine room C is issued by ringing of the alarm device 6c (buzzer generation) or light emission. Since the display 7c has a display scale of the set value Ps, the user can know at a glance whether the detected density P1 in the machine room C is equal to or more than the set value Ps. The ringing or luminous pattern of the alarm 6c is different from the ringing or luminous pattern of the alarm 6a, 6b. The leak control unit 5, the alarm devices 6a, 6b, 6c, and the indicators 7a, 7b, 7c are disposed in a control room where the user is located.

  Remote controllers 10A, 10B and 10C are respectively connected by wires to the leakage control unit 5, and the centralized management controller 20 is connected by wires to the remote controllers 10A, 10B and 10C. The centralized management controller 20 has a touch panel display 20a, and heat source units 1a to 1n, 11a to 11n, 21a to 21 according to the operation of the touch panel display 20a by the user and via the remote controllers 10A, 10B, and 10C. Centrally manage 21n operation. The central management controller 20 is disposed in the management room.

  The leak control unit 5 sends detected concentration information D1a for notifying the detected concentration P1 to the remote controller (first remote controller) 10A, and detects detected concentration information D1b for notifying the detected concentration P2 as a remote controller (second remote Controller) 10B to send detected density information D1c for notifying the detected density P3 to the remote controller (third remote controller) 10C. Furthermore, the leak control unit 5 sends alarm information (first alarm information) D2a for notifying that the detected density P1 is higher than the set value Ps to the remote controller 10A, and the detected density P2 is higher than the set value Ps. Alarm information (second alarm information) D2b for notifying that the remote controller 10B, alarm information (third alarm information) D2c for notifying that the detected concentration P3 is the set value Ps or more as a remote controller Send to 10C.

  The remote controller 10A recognizes the detected concentration P1 from the detected concentration information D1a and displays it on the display 10b, and when the alarm information D2a is received (that is, when the refrigerant sensor 4 detects the leakage of the refrigerant) The operation of all the heat source units 1a to 1n is immediately stopped.

  The remote controller 10B recognizes the detected concentration P2 from the detected concentration information D1b and displays it on the display 10b, and when the alarm information D2b is received (that is, when the refrigerant sensor 14 detects the leakage of the refrigerant) The operation of all the heat source units 11a to 11n is immediately stopped.

  The remote controller 10C recognizes the detected concentration P3 from the detected concentration information D1c and displays it on the display 10b, and when the alarm information D2c is received (that is, when the refrigerant sensor 24 detects the leakage of the refrigerant) The operation of all the heat source units 21a to 21n is immediately stopped.

  Since the operation of all the heat source units 1a to 1n of the first group is stopped when an alarm is generated for the first group, the leakage of the refrigerant in the machine room A does not continue unnecessarily. Since the operation of all the heat source units 11a to 11n of the second group is stopped when an alarm is generated for the second group, the leakage of the refrigerant in the machine room B does not continue unnecessarily. Since the operation of all the heat source units 21a to 21n of the third group is stopped when an alarm is generated for the third group, the leakage of the refrigerant in the machine room C is not continued unnecessarily.

  Since the detected densities P1, P2 and P3 are displayed by the displays 7a, 7b and 7c and the remote controller 10, it is possible to accurately notify the user and the administrator of the detected densities P1, P2 and P3 at the time of the alarm occurrence.

  Other configurations, controls, and effects are the same as in the fourth embodiment.

  [6] A sixth embodiment of the present invention will be described.

  In the sixth embodiment, as shown in FIG. 6, the centralized control controller 20 is connected to the leak control unit 5 by wire, and instead, the wire connection between the leak control unit 5 and the remote controllers 10A, 10B, 10C is removed. .

  The leak control unit 5 sends detected concentration information D1a, D1b, D1c and alarm information D2a, D2b, D2c to the central management controller 20.

  The centralized management controller 20 recognizes the detected concentration P1 from the detected concentration information D1a and displays it on the touch panel display 20a, and receives the alarm information D2a (that is, when the refrigerant sensor 4 detects leakage of the refrigerant). The operation of all the heat source units 1a to 1n in A is immediately stopped. The centralized management controller 20 recognizes the detected concentration P2 from the detected concentration information D1b and displays it on the touch panel display 20a, and receives the alarm information D2b (that is, when the refrigerant sensor 14 detects the leakage of the refrigerant). The operation of all the heat source units 11a to 11n in the machine room B is immediately stopped. Furthermore, the centralized management controller 20 recognizes the detected concentration P3 from the detected concentration information D1c and displays it on the touch panel display 20a, and also receives the alarm information D2c (that is, when the refrigerant sensor 24 detects the leakage of the refrigerant). The operation of all the heat source units 21a to 21n in the machine room C is immediately stopped.

  Other configurations, controls, and effects are the same as those of the fifth embodiment.

[7] Modification
Although the case where a plurality of heat source units were installed in the machine room was described as an example in each above-mentioned embodiment, not only the machine room but also when installed in other indoor spaces, it is possible to carry out similarly.

  In each of the above-described embodiments, the case where the water-cooled heat source unit is installed in the machine room has been described as an example, but not limited to the water-cooled heat source unit, air heat exchange between the air and the refrigerant in the first heat exchanger The same is also possible when an air-cooled heat source unit as a exchanger is installed.

  In each of the above embodiments, an alarm that emits sound or light is used. However, not only sound or light, but also leakage of refrigerant may be notified to the user and the maintenance manager by wireless communication or network communication.

  In addition, the above embodiments and modifications are presented as examples, and are not intended to limit the scope of the invention. This novel embodiment and modification can be implemented in other various forms, and various omissions, rewrites and changes can be made without departing from the scope of the invention. These embodiments and modifications are included in the scope of the invention in the scope, and are included in the invention described in the claims and the equivalents thereof.

  A: Machine room, 1a, 1b, ... 1n ... Heat source unit, 2a, 2b, ... 2n ... Unit controller, 3a, 3b, 3c, 3d ... Water piping, 4 ... Refrigerant sensor, 5 ... Leakage control unit, 6 ... Alarm, 7 ... Display, 10 ... Remote controller

Claims (7)

Multiple heat source units,
At least one refrigerant sensor disposed in an indoor space in which each of the heat source units is installed;
Alarm means for emitting an alarm when the refrigerant sensor detects a refrigerant;
A controller for stopping the operation of the plurality of heat source units when the refrigerant sensor detects a refrigerant;
A heat source apparatus comprising: The controller has a unit controller provided to each of the heat source units, and an operation means for setting operating conditions, and operates the heat source units according to the operation of the operation means and via the unit controllers. Is a remote controller to control,
The heat source device according to claim 1, characterized in that: The alarm means is an alarm and a leak control unit that drives and controls the alarm.
The leak control unit detects the concentration of the refrigerant present in the indoor space from the output signal of the refrigerant sensor, and when the detected concentration is equal to or higher than a set value, drives the alarm to issue an alarm and also detects the detected concentration. Sending alarm information to the remote controller to notify that the value is equal to or greater than the set value,
The remote controller stops the operation of the heat source units via the unit controllers when the alarm information is received.
The heat source device according to claim 2, characterized in that: The alarm means is an alarm and a leak control unit that drives and controls the alarm.
The leak control unit detects the concentration of the refrigerant present in the indoor space from the output signal of the refrigerant sensor, and issues an alarm from the alarm when the detected concentration is equal to or higher than a set value.
The remote controller detects the concentration of refrigerant present in the indoor space from the output signal of the refrigerant sensor, and stops the operation of each heat source unit via the unit controller when the detected concentration is equal to or higher than a set value. ,
The heat source device according to claim 2, characterized in that: The plurality of heat source units are a plurality of heat source units of a first group installed in a first indoor space, and a plurality of heat source units of a second group installed in a second indoor space,
The refrigerant sensor is at least one first refrigerant sensor disposed in the first indoor space, and at least one second refrigerant sensor disposed in the second indoor space.
The alarm means is a first alarm, a second alarm, and a leak control unit that drives and controls the alarms.
The unit controller is a first unit controller provided to each heat source unit of the first group and a second unit controller provided to each heat source unit of the second group,
The leak control unit detects the concentration P1 of the refrigerant present in the first indoor space from the output signal of the first refrigerant sensor, and drives the first alarm when the detected concentration P1 is equal to or higher than the set value Ps. To issue an alarm and to send to the remote controller first alarm information for notifying that the detected concentration P1 is the set value Ps or more, and from an output signal of the second refrigerant sensor to the second indoor space Detects the concentration P2 of the existing refrigerant, and drives the second alarm to emit an alarm when the detected concentration P2 is higher than the set value Ps, and the detected concentration P2 is higher than the set value Ps Sending second alarm information to the remote controller to notify
The remote controller stops the operation of each heat source unit of the first group via the first unit controllers when receiving the first alarm information, and receives the second alarm information when receiving the second alarm information. Stopping the operation of each heat source unit of the second group via a second unit controller,
The heat source device according to claim 2, characterized in that: The controller includes a first unit controller provided to each heat source unit of the first group, a second unit controller provided to each heat source unit of the second group, and a first operation means for setting operating conditions. A first remote controller for controlling the operation of each heat source unit of the first group according to the operation of the first operation means and each first unit controller, and a second operation means for setting operation conditions; A second remote controller for controlling the operation of each heat source unit of the second group according to the operation of the second operation means and via the second unit controllers; and the first and second remote controllers Central control for centrally managing the operation of each of the heat source units of the first and second groups via Is a roller,
The plurality of heat source units are a plurality of heat source units of a first group installed in a first indoor space, and a plurality of heat source units of a second group installed in a second indoor space,
The refrigerant sensor is at least one first refrigerant sensor disposed in the first indoor space, and at least one second refrigerant sensor disposed in the second indoor space.
The alarm means is a first alarm, a second alarm, and a leak control unit that drives and controls the alarms.
The leak control unit detects the concentration P1 of the refrigerant present in the first indoor space from the output signal of the first refrigerant sensor, and drives the first alarm when the detected concentration P1 is equal to or higher than the set value Ps. And sends first alarm information for notifying that the detected concentration P1 is the set value Ps or more to the first remote controller, and the second output signal of the second refrigerant sensor. The concentration P2 of the refrigerant existing in the indoor space is detected, and when the detected concentration P2 is higher than the set value Ps, the second alarm is driven to issue an alarm, and the detected concentration P2 is higher than the set value Ps. Sending second alarm information to the second remote controller to notify that there is
When receiving the first alarm information, the first remote controller stops the operation of each heat source unit of the first group via the first unit controllers.
When the second remote controller receives the second alarm information, the second remote controller stops the operation of the heat source units of the second group via the second unit controllers.
The heat source device according to claim 1, characterized in that: The controller is a first unit controller respectively provided to each heat source unit of the first group; a second unit controller respectively provided to each heat source unit of the second group; a first operation means for setting operating conditions A first remote controller for controlling the operation of each heat source unit of the first group according to the operation of the first operation means and via the first unit controllers; a second operation means for setting operation conditions; A second remote controller for controlling the operation of each heat source unit of the second group according to the operation of the second operation means and via the second unit controllers; and the first and second remote controllers Central control for centrally managing the operation of each of the heat source units of the first and second groups via Is a roller,
The plurality of heat source units are a plurality of heat source units of a first group installed in a first indoor space, and a plurality of heat source units of a second group installed in a second indoor space,
The refrigerant sensor is at least one first refrigerant sensor disposed in the first indoor space, and at least one second refrigerant sensor disposed in the second indoor space.
The alarm means is a first alarm, a second alarm, and a leak control unit that drives and controls the alarms.
The leak control unit detects the concentration P1 of the refrigerant present in the first indoor space from the output signal of the first refrigerant sensor, and drives the first alarm when the detected concentration P1 is equal to or higher than the set value Ps. And sends first alarm information for notifying that the detected concentration P1 is higher than the set value Ps to the central management controller, and an output signal of the second refrigerant sensor from the second room The concentration P2 of the refrigerant existing in the space is detected, and when the detected concentration P2 is higher than the set value Ps, the second alarm is driven to issue an alarm, and the detected concentration P2 is higher than the set value Ps. Sending second alarm information to the central management controller to notify that
When receiving the first alarm information, the centralized management controller stops the operation of each heat source unit of the first group via the first remote controller and the first unit controllers, and the second alarm information Stop operation of each heat source unit of the second group via the second remote controller and each second unit controller,
The heat source device according to claim 1, characterized in that:

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