@hvac.eng123: 🔥 HOW DOES FIRE PROTECTION WORK IN A BUILDING? 🏢🚨 From fire detection → alarm → smoke control → sprinklers → fire pumps → safe evacuation — every system has one job: protect lives and property. 🚒💧 Watch all 4 steps and learn how the complete system works! 👇 #HVAC #FireSafety #firealarm #FireSprinkler #fire