06/01/2023
During summer, clients usually exhaust heated air accumulating in the upper rafters and high ceilings with a bank of rooftop exhaust fans. During this period, fans are inspected, and the maintenance guys fix issues that need addressing. If not serviced regularly, the rooftop fans go down, and ventilation systems are compromised. It gets hot!
Unfortunately, most roof-mounted fans follow the “out of sight, out of mind” idiom. Unless a fan shuts down, going onto the roof is inconvenient, and servicing fans by disassembly them is often avoided as long as possible.
Installing heavy-duty long-life fans is the first step to extend the interval for hot weather rooftop repairs. And suppose your exhausted airstream is contaminated with particulate that builds up on the fan wheels (which subsequently go out of balance). In that case, the second step is reducing the required time when fan service is necessary.
Should either of these maintenance scenarios ring a bell, consider the Hartzell Air Movement “Swing-out Design” for roof exhausters. These fans are heavy-duty and easily serviced when you need to go up on the roof. The complete drive and fan wheel assemble unlatches from the housing, swings out, and the fan internals are readily serviced and cleaned.
https://www.systech-design.com/industrial-ventilation/industrial-fans-blowers/axial-fans/