1560-423 Compressor ZRD61KC-PFZ-522 Digital Scoll is the factory-fitted Scroll compressor for Classic Series R22 residential and commercial split ducted systems, using Copeland Scroll technology (ZR47KC-PFZ-522) for reliable fixed-speed R22 operation to compress R22 refrigerant and drive the system's cooling and heating cycle. A failed compressor causes complete system shutdown -- R22 refrigerant recovery is required before any compressor replacement work. Isolate power and recover all refrigerant before replacement -- compressor replacement must be performed by an ARCtick-licensed refrigeration technician.