This Avantco 18936863 condenser coil is a direct replacement for the one that comes standard on WVAC-28HC and BVAC-28HC air curtain merchandisers. The condenser coil is a vital part of your equipment's refrigeration system, working with the condenser fan and motor to cool down the refrigerant and help your unit dissipate heat. If the condenser coil in your unit is broken, be sure to fix it promptly.