Open base units with Copeland Semi-Hermetic compressors from 1.0 to 60.0 hp. for small/medium/large cool rooms, freezer rooms and cabinets etc utilizing refrigerants R404A, R134a and R22. Vast range of fitted accessory options to enable the installer to customize to suit the project. Unit covers for some smaller models also available. All Patton Semi-Hermetic condensing units are factory supplied with "Patton Coat" condenser coil and fin protection.