🛠️ DIY AC Compressor Conversion & System Overhaul

Описание: 🛠️ DIY AC Compressor Conversion & System Overhaul
Today, I undertook a full DIY upgrade of my AC, converting the old piston damage compressor to a scroll compressor. This was a complete mechanical, piping, and electrical overhaul. 😎💨
Step 1: Removing Old Components 🏗️
• Removed the condenser assembly and piston compressor from the outdoor unit.
• Disconnected and removed old system wiring, capacitor, and contactor.
• All electrical connections were carefully terminated using crimp terminals for safety. 🔌⚡
Step 2: Preparing Piping & Brazing 🔧🔥
• Designed and fabricated new suction and discharge piping to match the scroll compressor configuration.
• Used same pipe sizes: 1/2" for suction, 7/8" for discharge. 📏
• Aligned and installed the compressor with proper mounting legs and bolts, including anti-vibration supports.
• Connected nitrogen for purging while brazing all joints to prevent oxidation. 💨
Step 3: Cleaning & Flushing the Condenser 💧✨
• Installed service ports on the condenser lines.
• Flushed the condenser using R141b, removing moisture and old oil. 🧴💦
• Discovered some contamination, cleaned the condenser thoroughly, then removed the service ports.
• Reinstalled the condenser and re-brazed the condenser pipes using nitrogen purging. 🔥
Step 4: Replacing the Filter Drier 🛠️
• Cut out the old brazed filter drier.
• Flared both pipe ends using flare nuts to fit the new drier properly. ⚡
• Ensured proper sealing to prevent leaks.
Step 5: Electrical Work 🔌
• Replaced all system wiring, capacitor, and contactor.
• All connections made with proper crimp terminals for safety and reliability.
Step 6: System Preparation & Flushing 🧊
• Isolated the outdoor unit and flushed the entire piping system with the indoor unit using R141b.
• Verified the system was completely clean, free from moisture and contaminants.
• Performed deep vacuum to remove any remaining moisture and non-condensable gases. 🕳️💨
Step 7: Charging & Adjustment 📊
• Started refrigerant charging for the new scroll compressor.
• Carefully adjusted superheat (SH), subcooling (SC), and system pressure for optimal performance.
⚠️ Note: This was a DIY project, done step by step with proper tools, nitrogen purging, and safety measures. ✅
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