초록 ▼

A multi-function controller for a water heater is advanced comprising a control panel and a plurality of sensors that monitor a variety of functions that impact the operation of a water heater. A flammable gas sensor, placed in proximity to the air intake, detects the presence of an unsafe concentra

A multi-function controller for a water heater is advanced comprising a control panel and a plurality of sensors that monitor a variety of functions that impact the operation of a water heater. A flammable gas sensor, placed in proximity to the air intake, detects the presence of an unsafe concentration of gas and issues a signal to the control panel, which subsequently discontinues the operation of the burners. Detection of a blocked vent pipe is achieved by a carbon monoxide sensor placed near the draft hood. The control panel is equipped with circuitry which monitors usage of the heater for a specified time period to develop a pattern of use. Subsequent to the monitoring period, the controller will activate the burners a predetermined time prior to an anticipated period of high use. During periods of low use, the controller will decrease the temperature to which the water is to be heated, thereby resulting in a more efficient heater. Non-volatile memory records data from the sensors so that the operation status of the heater may be ascertained subsequent to a power outage. The control panel contains a plurality of visual alarms, each of which corresponds to a sensor. Consequently, repair and maintenance are simplified because the cause of a malfunction is quickly recognized.

대표청구항 ▼

1. A water heater, comprising:a tank dimensioned for containing a quantity of water, said tank having a top and a bottom; a heat exchanger positioned in said tank; means for combusting a mixture of gas and air, said combusting means being positioned proximate to said bottom of said tank, said combus

1. A water heater, comprising:a tank dimensioned for containing a quantity of water, said tank having a top and a bottom; a heat exchanger positioned in said tank; means for combusting a mixture of gas and air, said combusting means being positioned proximate to said bottom of said tank, said combusting means in operational connection with said heat exchanger; a draft hood positioned on said top of said tank, said draft hood being in fluid communication with said heat exchanger; a vent pipe extending from said draft hood; an air intake channel, said air intake channel being in fluid communication with said combusting means; and means for controlling said water heater, said controlling means comprising: a control panel supported by said exterior of said tank, said panel being in operational connection with said combusting means, means carried by said water heater for sensing the presence of flammable gases, said flammable gases sensing means being in electrical connection with said control panel, said sensing means issuing a signal to said control panel when said flammable gases sensing means senses a preselected concentration of a flammable gas, said control panel discontinuing the operation of said combusting means upon receipt of said signal from said flammable gases sensing means, and wherein said flammable gases sensing means is positioned proximate to said air intake channel to sense flammable gases before said flammable gases reach said combusting means.