This service manual covers three Haier commercial air conditioner outdoor units: AU242FHBIA (24,000 BTU/h), AU482FIBIA (48,000 BTU/h), and AU48NFIBJA (48,000 BTU/h, 3-phase). All models use R407C refrigerant and support free combination with cassette, ceiling concealed, and wall-mounted indoor units up to 130% of outdoor capacity.
The manual includes product descriptions, detailed specifications, safety precautions, net dimensions, installation instructions, parts and functions, controller functions, electrical control functions, wiring diagrams, failure codes and troubleshooting, noise levels, and performance curves. It also explains capacity calculation methods for various operating conditions.
| Cooling Capacity (BTU/h) | 24000 |
|---|---|
| Power Source | 1PH, 220-230V~, 50Hz |
| Refrigerant | R407C |
| Max Piping Length | 50 m |
| Max Height Difference | Outdoor upper: 30 m, outdoor lower: 20 m |
| Cooling Capacity (BTU/h) | 48000 |
| Power Source | 1PH, 220-230V~, 50Hz |
| Refrigerant | R407C |
| Max Piping Length | 100 m |
| Max Height Difference | Outdoor upper: 30 m, outdoor lower: 20 m |
| Cooling Capacity (BTU/h) | 48000 |
| Power Source | 3N~, 380-400V, 50Hz |
| Refrigerant | R407C |
| Max Piping Length | 100 m |
| Max Height Difference | Outdoor upper: 30 m, outdoor lower: 20 m |
All three models use R407C refrigerant.
The maximum piping length is 100 meters for both models.
The AU48NFIBJA requires a 3-phase 380-400V, 50Hz power supply.
Yes, all indoor units have an auto-restart function that recovers the previous running mode after a power cut.