Window AC Installation (DIY)
Required Tools
- Measuring tape
- Screwdriver (Phillips and flat head)
- Weatherstripping tape
- Installation bracket (usually comes with AC)
Step-by-Step Installation
- Measure Window: Ensure window opening fits AC dimensions (width, height, depth)
- Clean Window Frame: Remove dust and debris for good sealing
- Insert AC Unit: Carefully place AC in window opening, centered
- Install Support Bracket: Secure bracket from bottom to support AC weight
- Seal Gaps: Use weatherstripping tape or caulk to seal sides and top gaps
- Install Exhaust Pipe: Connect 4-6 inch exhaust vent to outdoor area
- Plug In: Connect power cable to a properly grounded outlet
- Test: Run for 10 minutes to check for leaks and cool air flow
Installation Tips
- Window must be able to support AC weight (usually 50-70 lbs)
- Install on the shady side if possible
- Ensure outdoor unit isn't blocked
- Use 15-20 amp dedicated circuit
Split AC Installation (Professional)
Pre-Installation Checks
- Technician assesses room layout and outdoor placement
- Discusses indoor unit wall location (usually 7-8 feet above ground)
- Identifies outdoor unit location (shade, 2 feet clearance)
Installation Process
- Wall Drilling: Drill 2-inch hole through wall for piping
- Mount Indoor Unit: Secure indoor unit on wall using bracket
- Install Outdoor Unit: Place outdoor unit on stand with anti-vibration pads
- Connect Piping: Install copper pipes connecting indoor/outdoor units
- Electrical Wiring: Connect electrical cables (usually 20-30 amps circuit needed)
- Vacuum Purging: Use vacuum pump to remove air and moisture
- Refrigerant Charging: Add appropriate refrigerant charge
- Testing: Run system for 20-30 minutes to check cooling and leaks
Installation Time
Typically 2-4 hours depending on room layout and accessibility.
Common Installation Mistakes
Window AC
- Poor sealing allowing air leakage
- Inadequate support bracket installation
- Blocking outdoor condenser vents
Split AC
- Improper pipe insulation leading to condensation
- Outdoor unit in direct sunlight
- Inadequate refrigerant charge
- Poor electrical connection
Post-Installation Care
- Don't operate for 4-6 hours after installation (pipes settle)
- Check for water leakage in first 24 hours
- Verify cold air flow from all vents
- Keep installation documentation for warranty
Warranty After Installation
Most ACs have 1-year comprehensive warranty and 5-10 year compressor warranty. Professional installation is required for warranty validity.
Conclusion
Window AC installation is DIY-friendly with basic tools. Split AC installation must be done professionally to ensure proper refrigerant charging and electrical safety.