It mainly deals with the design method and principle of fire damper, positive pressure control, ventilation of stair room and running logic of HVAC in emergence situation.

正压控制的设计原则和方法；楼梯间的通风设计以及紧急状态下HVAC系统的运行逻辑设计。

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Equipped with a ladder into the air shaft, the drainage pipes, duct pressure, fire sprinkler pipe and power cables for safety into the ventilation shaft and exports;

进风立井装备梯子间、排水管、压风管、消防洒水管以及动力电缆等，为进风井兼安全出口；

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Equipped with a ladder into the air shaft, the drainage pipes, duct pressure, fire sprinkler pipe and power cables for safety into the ventilation shaft and exports;

进风立井装备梯子间、排水管、压风管、消防洒水管以及动力电缆等，为进风井兼安全出口；

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