MICROCOMPUTER FUEL BURNER CONTROL HAVING SAFETY INTERLOCK MEANS

摘要

A microcomputer control utilizes a nonvolatile memory (28) with an interlock (31). The interlock functions upon the removal of the microcomputer control from a base (12) or from a mounting surface (10), and its reinstallation. The removal and reinstallation deletes memory and requires reprogramming. This prevents the removal of a microcomputer control that is protected by battery backup without reprogramming the memory. This safety function is particularly useful in flame safeguard or burner control equipment (10) where the interchange of microcomputer fuel burner controls without reprogramming for the particular burner could create a hazard.