A system for inhibiting the spread of fire in a building structure

摘要

Closure means (15, 16, 17, 18) are provided in the delivery and/or vent paths (11, 12) of an air conditioning system together with control means which respond to the presence of combustion in the associated compartment of a building structure to effect closure of the closure means when combustion therein is detected. Preferably closure means are provided at the entry and exit points of both the vent and delivery lines to each compartment so that the compartment in which combustion starts is automatically sealed off from the other compartments to inhibit the spread of the combustion products through the air conditioning system. It is also preferred that the closure means, when moved to the closed position, divert the combustion products into a vent passage or service duct leading directly to the outside of the building structure. IMAGE