WATER HEATER WITH MOUNTING ERROR PROTECTION

摘要

A water heater includes a water heater main unit and a control circuit unit connected in parallel. The control circuit unit includes a circuit board carrying a water permeation safety control device and a tilt angle sensor switch. The water permeation safety control device includes an auto power-off safety device for automatically interrupts electrical current if water is permeated in the control circuit unit. If the water heater is installed in a wrong direction or tilted over a predetermined angle, the angle sensor switch automatically switches off the circuit.

主权项

1. A water heater, comprising a water heater main unit adapted for heating the water passing therethrough and a control circuit unit mounted at one lateral side of said water heater main unit in a parallel manner, said control circuit unit comprising a circuit board mounted therein and a heater control circuit installed in said circuit board for controlling the operation of said water heater main unit, said heater control circuit comprising a water permeation safety control device, said water permeation safety control device being a water permeation protection circuit, said water permeation protection circuit comprising a water sensor switch, a comparator circuit electrically connected to said water sensor switch, a normally open AC electrically connected to said comparator circuit, and an auto power-off safety device electrically connected to said comparator circuit.