Robertshaw RBSC-852-B Burner Safety Controller

Robertshaw RBSC-852-B Burner Safety Controller is a flame-safeguard module for gas-fired appliances that coordinates ignition, flame sensing, and shutdown logic to enhance safe operation during start‑up and steady operation. It provides explicit monitoring and safety shutoff functions, forming part of Robertshaw’s line of burner safety controls. For flame sensing, the unit supports remote flame sensing via a REMOTE SENSE connector when separate ignitor and sensor rods are used, or local sensing by wiring a sense jumper to REMOTE SENSE for a single‑rod configuration, with wiring guidelines aimed at preventing unsafe operation. The controller is built to withstand demanding environments, with an operating ambient temperature range specified from -40°F to 165°F (-40°C to 74°C). The installation guidance also covers proper flame-sense wiring and the distinction between local and remote sensing to ensure reliable ignition safety.