95% of engineers don't know the working principle of HVAC! 😱❄️ It's a 4-step refrigeration cycle — Compressor pressurizes the refrigerant → Condenser rejects heat outdoors → Expansion Valve drops pressure & temperature → Evaporator absorbs heat from indoor air and cools your room! 🌡️ That's how your AC keeps you cool every single day! 🔥 Did YOU know this? Drop a ✅ or ❌ below 👇 Save this! 📌
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