8. **Key Safety Warnings:**

- The return slot must be strictly monitored for temperature, and operation above the allowable temperature is strictly prohibited. Excessive oil temperature (close to the flash point) can easily cause a large amount of oil vapor to evaporate, which, upon contact with air or a spark, may lead to a fire or explosion, with extremely serious consequences. It is essential to ensure that the oil temperature control system is effective and that the over-temperature alarm device is sensitive and reliable.

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