8 Unique Features of BD Air Conditioner
AI INVERTER Technology

• Predict the torque shortage & over speed of the compressor to react the torque compensation correspondingly.
• More adaptive (than the Parametric control) by introducing the Auto-Learning & torque compensation to the compressor control for optimal coefficient of performance (COP) and energy efficiency ratio (EER).
• Smooth speed ramp up & down for the compressor control, low vibration and noise while the compressor starts up

with a very low rotation speed (RPS).

• Fuse built inside the AC power terminal block and could be triggered to protect the machine if overheat occurred due to inrush current or the terminal block not fastened well.
• No power supplied from DC to capacitor while the power is switch off; high voltage is discharged to ensure the safety of maintenance also extend the lifetime of capacitor.
• Power Factor Correction could be adjusted based on the needs to stabilize the compressor control and enhance the power factor.
• Fault Alarm sending to micro control unit (MCU) while temperature & current of motor or compressor is abnormal, and the unit will take protective actions immediately.
• Fuse will be triggered to avoid countercurrent back to the unit while the fan runs in reverse.
• Control refrigerant flow on optimal amount to achieve better efficiency via electric expansion valve.

• White noise detection algorithm.
• Numerical Simulation on flow turbulence reduction of indoor/outdoor fan.
• Very low noise at the very low speed mode of compressor and indoor/outdoor fan.

• First operatiing time.
• Total operating time.
• Unstable AC supply voltage.
• Abnormal operation current.
• Refrigerant leakage.
• Communication failure.

• Acrylic resin coating against water, insect and static.
• Surge protection.
• Enlarge cross-section area of high current circuit.
• Reduce weight by using small inductor of PFC.
• Control box improved to block the heat source and prevent the spread of naked flames.