Fields of application: Multiple actuator for gas devices such as heaters, combi-units, continuous-flow water heaters, gas heaters with automatic direct ignition and intermitting pilot burner. Main features: Two automatic solenoid valves, servo-controlled pressure units. Electric modulation of the outlet pressure (845). Single-stage, adjustable outlet pressure - 840 Sigma (on/off). Related standards: EN 126, multiple actuators for gas units
