Valve Controller for the Gas Detection Unit
This controller is operated and activated by the gas detection unit.
Effect, when gas alarm, gas emergency stop or manual shutdown,
that first shuts down the CHP, and only then the associated gas valve
closes with a fixed time delay of at least 10 seconds.
The ventilation is raised primarily by this message to the CHP!
Conversely, it causes, after the acknowledgment of the alarm, when
turning manual the gas valve, that the CHP will be setting again after a
fixed setting time delay of at least of seconds.
The device also allows bridging of the gas alarm for the continued
operation of the CHP in special cases..
The controller has safety relays and corresponding safety integrity SIL 2
→ Operating instructions