On receipt of a smoke clearance signal from the Fire Alarm panel, the AHU shall close the inlet damper to 100% and the Exhaust dampers to 100% open. The Extract Fan will then run at 100%. This alarm is a manual reset. To reset this alarm press the Alarm bell twice to acknowledge and reset, then In “Service-> Manual management”(screen Gg01) change the Extract fan from “99” to “AUTO”.
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