The quantity of gas required in a 1.5-ton split air conditioner (AC) depends on the type of refrigerant used in the unit. The most common refrigerants used in split ACs are R-410A and R-32. These refrigerants have different operating pressures and characteristics, affecting the amount required.
For an R-410A system, the typical charge for a 1.5-ton split AC would be around 0.7 to 0.8 kilograms (approximately 1.5 to 1.8 pounds) of refrigerant. On the other hand, if the split AC uses R-32 refrigerant, the required charge would be slightly different, usually ranging from 0.55 to 0.65 kilograms (approximately 1.2 to 1.4 pounds).
Keep in mind that the specific quantity of gas needed may vary depending on the brand and model of the split AC, as well as the length of refrigerant lines connecting the indoor and outdoor units. It's always best to refer to the manufacturer's specifications and guidelines to ensure the correct amount of refrigerant is used during installation or servicing. Additionally, handling refrigerants requires proper training and certification due to environmental concerns, so it's essential to have a qualified HVAC technician handle any refrigerant-related tasks.