1. Why Copper Pipe Size Matters in AC
Copper pipes carry refrigerant gas between the indoor and outdoor units. If the pipe size is incorrect:
- Gas flow becomes inefficient
- Cooling performance drops
- Compressor works under extra pressure
Correct sizing ensures smooth gas circulation and optimal cooling.
2. Standard Copper Pipe Sizes Used in AC
Most residential air conditioners use the following copper pipe sizes:
- 1/4 inch (liquid line)
- 3/8 inch (gas line)
- 1/2 inch (for higher tonnage ACs)
These sizes vary based on AC capacity and brand specifications.
3. Copper Pipe Size for 1 Ton AC
For most 1-ton split ACs:
- Liquid line: 1/4 inch
- Gas line: 3/8 inch
Using thicker pipes than recommended increases cost without performance benefit.
4. Copper Pipe Size for 1.5 Ton AC
A 1.5-ton AC generally requires:
- Liquid line: 1/4 inch
- Gas line: 1/2 inch
This size helps handle higher refrigerant volume and pressure.
5. Copper Pipe Size for 2 Ton AC
For 2-ton and above ACs:
- Liquid line: 1/4 inch or 3/8 inch
- Gas line: 1/2 inch or larger
Always check manufacturer guidelines for exact requirements.
