How many pound s of R-22 refrigerant are in my Data Aire unit?
A rule of thumb is to charge each circuit (larger units may have dual circuits) with 3 lbs. of refrigerant per circuit to start. Add more as needed based on pressure and superheat. For more details see the Operation and Maintenance Manual shipped with the unit. These manuals are also available for download from this website. The total charge of split systems will be dependent on several factors, including length of run, line size, and flooded system. Air cooled split systems are shipped without a refrigerant charge. How much R-22 is needed per receiver tank? The amount of R-22 in a receiver tank depends on the size of the receiver. Receiver size is determined by the size of the compressor. A small receiver is used for compressors of 6.5 ton or less. Medium receivers are used for compressors between 7.5 ton and 12.5 ton. Large receivers are used for compressors over 15 ton. Keep in mind that if you have a dual circuit machine the compressor tonnage will be half the nominal tonnage of th
