Installation Guide for Friedrich models including: FPHFR09A3D, FPHFR12A3D, FPHFR18A3D, FPHFR Series Ductless Split Single Zone Outdoor Unit, FPHFR Series, Ductless Split Single Zone Outdoor Unit, Split Single Zone Outdoor Unit, Single Zone Outdoor Unit, Outdoor Unit, Unit

2025 Cassette Concealed Ducted WM Universal ODU9-18K IOM

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Ductless Split Single Zone Outdoor Unit 9k-18k BTU For Use with Cassette, Ducted , and Wall Mounted indoor Units. Uses R-454b Refrigerant Models: FPHFR09A3D, FPHFR12A3D, FPHFR18A3D

and national (3) All communication wire must be 4*14 AWG THHN stranded. Solid wire can cause communication error.
In cold weather conditions, make sure to turn electric power 6 hours before operating unit. This will allow the compressor to warm up and prevent damage to the compressor.