Gas water heater and control method thereof

The invention relates to a control method of a gas water heater. The control method comprises the steps that S10, the real-time current I1 of a gas proportional valve of the gas water heater is obtained; S20, whether the real-time current I of the gas proportional valve is larger than the preset min...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JIANG HONG, LIANG HUI, WANG XINGJING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL HEATING LIGHTING MECHANICAL ENGINEERING RANGES VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a control method of a gas water heater. The control method comprises the steps that S10, the real-time current I1 of a gas proportional valve of the gas water heater is obtained; S20, whether the real-time current I of the gas proportional valve is larger than the preset minimum current I of the gas proportional valve or not is compared, and if I is larger than I , an auxiliary water pump is started to increase the water inflow of the gas water heater; S30, the output power of the auxiliary water pump is gradually improved; S40, the real-time current I of a gas proportional valve of the gas water heater is obtained; and S50, whether the real-time current I of the gas proportional valve is larger than the preset minimum current I of the gas proportional valve or not is compared, if I is greater than I , circulating to the step S30, and if I is smaller than or equal to I , the gas water heater maintains the current operation state, and the auxiliary water pump maintains the current oper