| Terminal | Label | Function | Wire Color (Typical) | Notes | |----------|-------|----------|----------------------|-------| | | Live | AC Power Input (Line) | Black or Brown | 115V or 230V AC | | N | Neutral | AC Power Input (Neutral) | White or Blue | Common return | | FAN | Fan Capacitor | Run capacitor connection | Yellow or Red | Connects to fan motor's capacitor | | V | Motor Common | Motor winding common | Gray | Connects directly to motor | | COM | Signal Common | Control signal ground | Black (thin) | 0V reference for thermostat | | H | High Speed | High speed trigger | Red (thin) | 24V AC or 5V DC signal | | M | Medium Speed | Medium speed trigger | White (thin) | 24V AC or 5V DC signal | | L | Low Speed | Low speed trigger | Blue (thin) | 24V AC or 5V DC signal |
These wires tell the controller how fast to go and when to stop. yyk controller wiring diagram
Always use a multimeter to verify your battery voltage before connecting the main power. Ensure all connections are tight and insulated with heat-shrink tubing to prevent shorts. If your motor jitters or makes a loud grinding noise during the first test, you likely have a "Phase/Hall" mismatch. You may need to cycle through different combinations of the Green, Blue, and Yellow wires until the rotation is smooth. If you'd like to dive deeper, let me know: The of your battery (48V, 60V, 72V?) The model number on your YYK sticker If you are seeing a specific error code on your display | Terminal | Label | Function | Wire