| 摘要 |
PURPOSE:To maintain safety operating status even when any momentary suspension is returned at any time by setting data holding time from the occurrence of a momentary suspension of a microcomputer on a main frame side longer than that of a microcomputer on a remote control side in an oil burner, such as a kerosine hot water supply heater. CONSTITUTION:A safety device for an oil burner is provided with a controller 3 on a main frame side comprising a microcomputer 3A on a main frame side and remote controllers ranging from 4 to 6 which have a microcomputer 2 on a remote controller side. The remote control side microcomputer 2 detects occurrence of momentary suspension from an unfeasible state of external interruption while the main frame side microcomputer 3A detects the occurrence of momentary suspension based on the information whether or not data reception on the main frame side is abnormal. Since the main frame side microcomputer 3A has a longer data holding time from the generation of spontaneous suspension, this construction makes it possible to hold safety operating status or suspension status which prevents the start of recombustion. |
