Global Patent Index - EP 3477201 A1

EP 3477201 A1 20190501 - METHOD FOR OPERATING A GAS BURNER APPLIANCE

Title (en)

METHOD FOR OPERATING A GAS BURNER APPLIANCE

Title (de)

VERFAHREN ZUM BETRIEB EINES GASBRENNERGERÄTS

Title (fr)

PROCÉDÉ DE FONCTIONNEMENT D'UN APPAREIL À BRÛLEUR À GAZ

Publication

EP 3477201 A1 20190501 (EN)

Application

EP 17198609 A 20171026

Priority

EP 17198609 A 20171026

Abstract (en)

A gas burner appliance (10) comprises a gas burner (11) for combusting a gas/air mixture. The gas burner appliance (10) further comprises a primary heat exchanger (13) for heating service water (14) by the combustion of said gas/air mixture, and a secondary heat exchanger (18) for heating domestic water (19) by the heated service water (14). In a first or winter operation mode the heated service water (14) is provided to a heating system (15) and/or to the secondary heat exchanger (18). In a second or summer operation mode the heated service water (14) is only provided to the secondary heat exchanger (18). During burner-on phases the gas/air mixture having a defined mixing ratio of gas and air is provided to the gas burner (11). During burner-on phases the defined mixing ratio of gas and air of the gas/air mixture can be controlled and/or calibrated on basis of a signal provided by an electrical or electronic sensor (25). In the second or summer operation mode the calibration of the defined mixing ratio of gas and air is initiated in such a way that a value being representative of a number of burner starts and/or of an operating time and a temperature being representative of the gas burner temperature are monitored. If the value being representative of the number of gas burner starts and/or of the operating time reaches or crosses a first threshold, and if further the temperature being representative of the gas burner temperature reaches or falls below or is below a second threshold, then the gas burner (11) is started without presence of a heat demand to calibrate the defined mixing ratio of gas and air of the gas/air mixture.

IPC 8 full level

F23N 5/24 (2006.01); F23N 1/02 (2006.01); F23N 5/02 (2006.01); F23N 5/12 (2006.01); F24D 3/08 (2006.01)

CPC (source: EP US)

F23N 5/242 (2013.01 - EP); F24D 3/08 (2013.01 - EP); F24H 1/52 (2013.01 - EP); F24H 9/2035 (2013.01 - EP US); F24H 15/25 (2022.01 - EP US); F24H 15/269 (2022.01 - EP US); F24H 15/36 (2022.01 - EP US); F23N 1/022 (2013.01 - EP); F23N 5/022 (2013.01 - EP); F23N 5/12 (2013.01 - EP); F23N 2227/20 (2020.01 - EP); F23N 2241/06 (2020.01 - EP); F23N 2241/08 (2020.01 - EP); F24D 2200/04 (2013.01 - EP); F24H 15/176 (2022.01 - EP US); F24H 15/20 (2022.01 - EP US); F24H 15/31 (2022.01 - EP US); F24H 15/35 (2022.01 - EP US)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3477201 A1 20190501; EP 3477201 B1 20200506; WO 2019081464 A1 20190502

DOCDB simple family (application)

EP 17198609 A 20171026; EP 2018078962 W 20181023