What should be done when a centrifugal fan is suspended for an extended period?

What should be done when a centrifugal fan is suspended for an extended period?Centrifugal fans inevitably require pauses in operation. Therefore, when a centrifugal fan enters a suspended state, certain issues demand constant attention. For instance, how should the fan be positioned and placed during suspension? There are two scenarios for suspension: One involves short-term suspension, while the other entails halting fan operation during long-term use. Regardless of duration, users must always guard against freezing damage during operation. When ambient temperatures drop below 5°C during operation, drain residual water from the equipment and piping to prevent freezing. For the same reason, frozen fans are common in winter. Failure to promptly drain residual water is carelessness—a preventable issue.