H-S81-HS Installation & Operation Manual — P/N LS10114-000HI-E:A 2/24/2015 125Notes for the Development of Systems in Compliance with the EN12094-1 Standard Application Notes6.2.19 Emergency HoldThe system features inputs for receiving the emergency hold signal. (Hold). Two possible modesexist for this function:Mode-ARelease control outputs are not activated until the emergency hold device is active. When the emer-gency hold device deactivates, after the release delay time, the release control outputs activateimmediately (EV).Mode-BRelease control outputs are not activated until the emergency hold device is active. The releasedelay time is reset every time the emergency hold device is released. After the emergency holdinput is activated, the system carries out the following operations:• Activation of local audible indication (if previously silenced)• Activation of the HOLD steady light indicator on module S81-F6001• Activation of the output for emergency hold replication6.2.20 Activation of a Secondary Release SequenceThe system can control a secondary release sequence. This sequence is activated by manual device.The secondary flooding sequence is activated only in the following cases:• Primary release sequence is over (“released” condition)• Sounders have not been silenced• System has not been reset• Secondary sequence manual actuation input is active.6.2.21 Manual Only Mode (Aut-Off)The system features inputs for receiving the signal switching the operating mode frommanual only to automatic/manual and vice versa. After this input is activated, the systemcarries out the following operations:• Activation of the Aut-Off steady light indicator on module S81-F6001• Activation of the output for Manual only operation replication. (Aut-Off)6.2.22 Actuation Commands for System Internal EquipmentThe system can control equipment located inside the fire extinguishing zone. E.g. Pilot cylinders,visual alarm devices, etc. The modules to be used for these purposes are:NOTE: The fault condition of the emergency hold input line will inhibit the activation of releasingcontrol outputs.NOTE: The secondary releasing control output is activated immediately after the activation ofthe manual actuation input without any delay.NOTE: During the manual only operation, a fire extinguishing zone can be activated only bymeans of the manual actuation device (PB).• S81-F5003: for controlling visual and audible alarm devices• S81-F5001, S81-F5004: for controlling solenoids, valves, etc.
