OBAIR Cassette Fan Coil Unit: Comprehensive testing process + Standardized installation operation guide (with video)

Step 1: Unboxing Inspection and Component Sorting

1. Two people lift and place the box gently. Remove body foam after unboxing; take off bottom shock-absorbing foam only after positioning to prevent deformation.
2. Check accessory bag: factory inspection report, manual, certificate of conformity, remote control. Report missing/damaged parts for replacement immediately.
3. Inspect the unit: no shell dents, intact heat exchanger fins and air grilles. Proceed only if undamaged.

Step 2: Wiring Operation – Standard Connection is Key

4. Find the "WIRING BOX" cover on the unit side – this is the key electrical connection area.
5. Open the box with a cross screwdriver (store screws separately). Avoid dropping the dust-proof rubber pad when removing the cover.
6. Identify components: "CONTROL PANEL" and pre-stripped connection cables (no extra processing needed).
7. Connect control board to unit cables (anti-reverse design); then link 220V L/N wires to corresponding terminals. Tighten screws and pull gently to confirm security.
8. Verify wiring: no reversed poles, intact insulation, no foreign objects. Leave the cover off for testing.

Step 3: Power-On Test – Verify Functions in Stages

1. Basic Power-On Check

• Press "Power" – green light indicates normal power. If not, cut power and check wiring/switches.
• Listen for operation – no abnormal noise/vibration (≤35dB). Check fan blades for foreign objects if noisy.

2. Remote Control Function Test

9. Press "On/Off" – unit should respond. If not, check battery polarity or re-pair per manual.
10. Adjust fan speed (high/medium/low) – confirm smooth air volume changes at the outlet.
11. After testing, cut power, cover and secure the wiring box. Organize documents for archiving.

FAQs (with Video Bonus)