Patent ID: 6609904
Filing Date: 2003-08-26
Classification: F23N,F24C

Abstract:
A furnace control arrangement comprising:a control unit installed a furnace body having an electronic igniter and a mother flame nozzle and main flame nozzle, and said control unit being connected to the electronic igniter of said furnace body by conductor means, said control unit comprising a valve seat supported on said furnace body, and a set of solenoid valves mounted in said valve seat, said solenoid valves including a main valve adapted to control a gas passage from an external fuel gas source to said valve seat, a mother flame valve adapted to control a gas passage from said valve seat to said mother flame nozzle, a high flow rate valve adapted to control a big gas passage from said valve seat to said main flame nozzle, and a low flow rate valve adapted to control a small gas passage from said valve seat to said main flame nozzle; and an operating unit provided outside said furnace body and respectively connected to said control unit and said electronic igniter by respective conductor means, said operating unit comprising a power switch adapted to switch on/off said electronic igniter and to close/open said main valve and said mother flame valve, a strong flame switch adapted to close/open said high flow rate valve, and a weak flame switch linked to said strong flame switch and adapted to close/open said low flow rate valve.