Material: Main body: FR-4 flame-retardant PCB board (high-temperature resistant, corrosion-resistant) Shell: ABS engineering plastic (conforming to CPC E 94V-0 flame retardant standard); Electrical components: Surface mount resistors, capacitors, relays (switches with a lifespan of ≥ 100,000 times)
Technical specifications: Delay time of 3 to 5 minutes (to prevent frequent starts); Flame retardant grade CPC E 94V-0 (maximum flame resistance grade); Protection grade IP44 (Splash-proof, suitable for indoor humid environments)
Note: Before installation, disconnect the power supply of the device and wait 5 minutes until the capacitor discharges to avoid the risk of electric shock; Compare the wiring ports of the new and old control boards to ensure that the wiring sequence is consistent
Safe operation:
1.Do not install by hand in a damp environment. It is recommended to wear insulating gloves.
2.If the fan still does not work after installation, it is necessary to check the fuse or the resistance of the motor winding (normal range: 5-10Ω).