This product is a collection of magnetic switches that control water level. The function of this product is automatic turning on-off feed pump of boiler automatic breaking of burner sending alarm of regulating of water level or combination of these processes. The manner of direct installation The actions of flanged (L.C.D) controllers and caged one (L.C.C) are similar to each other The difference is that caged controllers are installed out and behind boilers but flanged one are fixed directly on boiler the flanged controllers are recommended generally for under 5000kg/h boilers. In order to direct installation of flanged controller on boilers shell float chamber is replaced by a flange and pipe and the float is putting on a guide pipe in order to safe keeping of float bar and omission effect of water turbulence on correct motion of it