The copper connection pipe diameters for the Mijia Air Conditioner Pro Eco 3.5 kW are Φ6mm and Φ9mm. The Φ6mm pipe has an outer diameter of 6.35mm and a wall thickness of 0.6 or 0.7mm. The Φ9 pipe has an outer diameter of 9.52mm and a wall thickness of 0.7mm.
Here is more information about the connection pipes of the device for your reference:
1. The Φ6mm pipe is the high-pressure (liquid) refrigerant line, while the Φ9mm pipe is the low-pressure (suction) line;
2. Both pipes are made of copper, which ensures good durability and efficient refrigerant flow;
3. These pipe sizes are standard for this air conditioner model, helping installers prepare the right fittings and tools.
Note:
Installation requires professional skills. We recommend scheduling an on-site installation service. Self-installation is not recommended.