US2026022841A1PendingUtilityA1

Space heating system

Assignee: RINNAI KKPriority: Jul 22, 2024Filed: Jul 9, 2025Published: Jan 22, 2026
Est. expiryJul 22, 2044(~18 yrs left)· nominal 20-yr term from priority
F24D 3/02F24D 19/1066F24D 2200/32F24D 3/08F24H 15/31F24H 15/281
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Claims

Abstract

A space heating system may include: a space heating circuit; a plurality of heat source devices, wherein each of the heat source devices is configured to perform a first heating operation for heating a heat medium flowing in the space heating circuit; a plurality of heat source controllers, wherein each of the heat source controllers is configured to control its corresponding heat source device; a space heating terminal configured for space heating by heat dissipated from the heat medium; a request generator configured to generate a heating request; a request transmitter configured to transmit the heating request to a predetermined heat source controller; and a selector configured to select a heat source device that is to perform the first heating operation. In response to the heating request being transmitted to the predetermined heat source controller, the heat source device selected by the selector may perform the first heating operation.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A space heating system comprising:
 a space heating circuit in which a heat medium flows;   a plurality of heat source devices disposed in parallel to each other in the space heating circuit, wherein each of the heat source devices is configured to perform a first heating operation for heating the heat medium flowing in the space heating circuit;   a plurality of heat source controllers, wherein each of the heat source controllers is provided for corresponding one of the plurality of heat source devices and is configured to control its corresponding heat source device;   a space heating terminal configured for space heating by heat dissipated from the heat medium flowing in the space heating circuit;   a request generator configured to generate a heating request for the space heating by the space heating terminal;   a request transmitter configured to transmit the heating request generated by the request generator to a predetermined heat source controller among the plurality of heat source controllers; and   a selector configured to select a heat source device that is to perform the first heating operation from among the plurality of heat source devices,   wherein in response to the heating request being transmitted to the predetermined heat source controller, the heat source device selected by the selector performs the first heating operation.   
     
     
         2 . The space heating system according to  claim 1 , wherein
 the plurality of heat source controllers includes one parent controller and at least one child controller communicable with the parent controller, and   the parent controller functions as the selector.   
     
     
         3 . The space heating system according to  claim 1 , further comprising a pump configured to deliver the heat medium flowing in the space heating circuit to the space heating terminal,
 wherein in response to the heating request being transmitted to the predetermined heat source controller, the predetermined heat source controller activates the pump.   
     
     
         4 . The space heating system according to  claim 2 , further comprising a pump configured to deliver the heat medium flowing in the space heating circuit to the space heating terminal,
 wherein in response to the heating request being transmitted to the predetermined heat source controller, the parent controller activates the pump.   
     
     
         5 . The space heating system according to  claim 3 , wherein
 when at least one of the plurality of heat source devices is unable to perform the first heating operation, operation of the pump is prohibited.   
     
     
         6 . The space heating system according to  claim 5 , further comprising a hot-water supply circuit in which water flows,
 wherein each of the plurality of heat source devices is further configured to perform a second heating operation for heating the water flowing in the hot-water supply circuit, and   each of the plurality of heat source devices is unable to perform the first heating operation while the heat source device is performing the second heating operation.   
     
     
         7 . The space heating system according to  claim 1 , wherein
 the space heating terminal comprises a plurality of space heating terminals,   the request generator comprises a plurality of request generators, wherein each of the plurality of request generators is provided for corresponding one of the plurality of space heating terminals, and   the request transmitter comprises a plurality of request transmitters provided for corresponding one of the plurality of request generators.   
     
     
         8 . The space heating system according to  claim 4 , wherein
 when at least one of the plurality of heat source devices is unable to perform the first heating operation, operation of the pump is prohibited,   the space heating system further comprises a hot-water supply circuit in which water flows,   each of the plurality of heat source devices is further configured to perform a second heating operation for heating the water flowing in the hot-water supply circuit,   each of the plurality of heat source devices is unable to perform the first heating operation while the heat source device is performing the second heating operation,   the space heating terminal comprises a plurality of space heating terminals,   the request generator comprises a plurality of request generators, wherein each of the plurality of request generators is provided for corresponding one of the plurality of space heating terminals, and   the request transmitter comprises a plurality of request transmitters provided for corresponding one of the plurality of request generators.

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