The Copeland ZS21KAE-TFD-818 Scroll Compressor is a 21,000 BTU compressor designed for 460V three-phase HVAC and refrigeration applications. It uses scroll compression technology to continuously compress and circulate refrigerant, supporting efficient heat transfer and stable system cooling. This compressor is commonly used in commercial air conditioning systems, heat pumps, and compa... https://www.partshnc.com/zs21kae-tfd-818-copeland-scroll-compressor-21000-btu-460v-3ph