Haier indoor unit manual provides operation, installation, safety, maintenance, and fault troubleshooting for models MVAB009MV2AA, MVAB012MV2AA, and…
This manual covers the complete setup and use of Haier indoor air‑conditioning units. It includes parts identification, safety precautions, maintenance procedures, fault checkup, installation steps, electrical wiring, and test‑run instructions.
Key sections detail the required refrigerant, operating temperature ranges, dip‑switch capacity settings, and wiring diagrams. The document also explains the 3‑minute protection feature and provides guidance for cleaning filters and handling fault codes.
| Refrigerant | R‑410A |
|---|---|
| Cooling indoor max dry‑bulb | 89.6 °F (32 °C) |
| Heating indoor max dry‑bulb | 80.6 °F (27 °C) |
| Capacity (dip‑switch setting 0‑0‑0‑0) | 5000 BTU (0.6 HP) |
Only R‑410A refrigerant is compatible with the unit.
Remove the air inlet grid, detach the filter, clean it with a vacuum or mild soap and water, then reinstall the grid and filter.
The unit automatically shuts off for three minutes after power is applied or after it stops, to protect the system.
Set dip switches SW01_1‑4 to the desired code; for example, 0‑0‑0‑0 selects 5000 BTU (0.6 HP).
This manual explains 12 error codes. Open a code for its meaning, causes and what to do: