This is a proprietary PTC sensor

ensuring accurate stroke and airflow modulation

the sequencer provides reliable mechanical switching independent of complex electronic boards

the Watts CSM-61 flow measurement valve includes an integrated positive memory feature

Fenwal 35-725205-021 Control R-410A This is a proprietary PTCThe Fenwal 35 725205 021 is a microprocessor based Direct Spark Ignition (DSI) control engineered for precision in 120VAC gas fired applications. Designed for heavy duty performance, this 120v DSI control features a potted enclosure to provide mechanical stability and protection against extreme vibration or moisture washdown, making it a reliable choice for commercial cooking equipment and industrial heaters. This ignition module is configured for a 3