Hydrovane 13-23PU Manual Hydrovane Rotary Compressors 13-23PU and 13-23PUA. Operator's Instruction, Maintenance and Parts Manual as Exploded-component Pictures with Electrical Schematic. Manufacturers: Hydrovane Models: 13 13-23 13-23PU 13-23PUA Contents: Operators Manual Maintenance Manual Parts Manual Electrical Diagrams