Gas water heater secondary pressure adjusting method and gas water heater

Abstract

The invention relates to the technical field of gas water heaters, in particular to a gas water heater secondary pressure adjusting method and a gas water heater. The gas water heater secondary pressure adjusting method specifically comprises the following steps that when the gas water heater works, the pressure of a gas outlet of a proportional valve is detected, the pressure is compared with theset secondary pressure, the PWM value is automatically adjusted according to the comparison result of the pressure and the set secondary pressure until the detection pressure meets the set secondarypressure. In the gas water heater secondary pressure adjusting method, by automatically adjusting the PWM value, the secondary pressure can be adjusted to reach a numerical value the same as the numerical value of the set secondary pressure, the PWM value adjustment is achieved through the automatic adjustment by a controller, and the adjustment can be achieved without manually opening a face shell of the gas water heater; and according to the provided gas water heater, during secondary pressure adjustment, the controller can adjust the secondary pressure by automatically changing the PWM value, due to the fact that the adjustment is automatic adjustment, the accuracy and precision of the adjustment are guaranteed, and management and control are easier to achieve.

Description

technical field [0001] The invention relates to the technical field of gas water heaters, in particular to a method for regulating the secondary pressure of a gas water heater and a gas water heater using the method. Background technique [0002] In order to achieve better combustion efficiency, the gas water heater needs to adjust the gas in the pipeline of the gas company through the internal proportional valve of the gas water heater. The adjusted pressure is the secondary pressure of the gas. The current secondary pressure test method is to leave a pressure measuring port on the proportional valve, and connect the micro-pressure device to the pressure measuring port of the gas water heater with a hose; the adjustment method is to reserve two potentiometers on the computer board, one for adjusting The minimum value, a maximum value, manually adjust the resistance of the potentiometer to change the current of the proportional valve and then control the opening of the propo...

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Problems solved by technology

[0004] The purpose of the present invention is to propose a method for adjusting the secondary pressure of a gas water heater and a gas water heater, which can solve the problems in the prior art that the method for adjusting the secondary pressure is too cumbersome, the accuracy of manual operation is not high, and the production control is difficult

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