Mini Split Brushless 310 VDC Motor

This is a Brushless DC (BLDC) motor used in an appliance, not a standard HVAC PSC motor.
Here's what the nameplate tells us:
• Manufacturer: Guangdong Welling Motor Manufacturing Co., Ltd.
• Motor Type: Resin Pack Brushless DC Motor (BLDC)
• Model: ZKFN-34-8-1
• Voltage: DC 310 V
• Power: 34 W
• Current: 0.16 A
• Speed: 1000 RPM
• Poles: 8
• Efficiency: 68.6%
• Power Factor: 0.99
• Rotation: Counterclockwise (arrow indicates rotation)
• Wire colors:
◦ White
◦ Yellow
◦ Blue
What makes this different?
Unlike a conventional AC fan motor:
• It cannot be connected directly to 120 V or 230 V AC.
• It requires an electronic inverter/control board that converts AC power into approximately 310 VDC and electronically commutates the motor.
• The three wires are the three motor phases driven by the controller.
Where is it commonly used?
This style of Welling BLDC motor is commonly found in:
• Mini-split indoor units
• Refrigerators
• Air purifiers
• Heat pumps
• Some dehumidifiers and HVAC equipment
Can it be bench-tested?
Not by applying line voltage directly. To test it properly, you need:
• The original control board, or
• A compatible 3-phase BLDC motor driver designed for a 310 VDC bus.
Applying 120 V or 230 V AC directly to the three wires will damage the motor.