The Johnson Controls G777MHA-1 gas ignition control box provides monitored, 24V ignition sequencing for compatible natural-gas and LP-gas equipment. As an intermittent-pilot control, it energizes a high-voltage spark to ignite the pilot, verifies flame through flame rectification, and then permits the main gas valve to open in the required sequence. If a flame is not proven during the... https://partsfe.ca/g777mha-1-johnson-controls-ignition-module