@sydney_hvac: We carried out an initial fire test at a new site we’ve picked up and identified some issues with the motorised dampers not closing. The wiring looks to have been added as an afterthought, as the relays that were added weren’t shown on the wiring schematic. If the AHU was set to manual on the mechanical board, the dampers weren’t closing once the duct probe was activated. A small change to the wiring was made, and everything is now operating as intended. #hvac #repair #hvacrepair #electrical #fire

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Sunday 06 September 2026 08:26:57 GMT