MacroAir Technologies 370 Airvolution D Installation Manual - page 30
© 2014 MacroAir Technologies Toll Free: 866 668 3247 Fax: 909 890 2313 www.macroairfans.com 28
Rev. Date 111714
Maintenance Information
Guy Wire Check (if applicable): Checking a MacroAir fan’s Guy wires for tension and inspecting
for frayed sections could mitigate a problem before it occurs. Fan owners should confirm that the
Guy wires are not wrapped around any sharp edges. MacroAir recommends attaching Guy wires
to the building with eye bolts or eye lags. If they are not already installed with eye bolts or lags, we
urge fan owners to install these in order to help keep the Guy wires from fraying. If Guy wires are
installed with turnbuckles, jam nuts should periodically be checked to ensure tightness. If they
are loose, the Guy wire cables may need to be re-tensioned.
Airfoil Cleaning: Depending on the type of commercial application the MacroAir fan is in, there
can be quite a bit of dust or other particulates (including grease!) that cling to the fan’s airfoils.
While this may not affect fan performance, we recommend fan owners keep airfoils clean by
having a maintenance person or skilled trade professional – who has experience using a lift –
wipe the fan airfoils with a rag or sponge using hot water or regular cleaning solutions. Please do
not use chlorine or any chemicals containing chlorine.
Safety Cable Check: Each MacroAir fan comes with a safety cable. Depending on the fan model,
the safety cable either wraps around the building structure and the fan frame, or comes out
of the top of the fan and wraps around the building structure. The safety cable is an important
part of the safety system and acts as a last resort should an earthquake, collision, or similar
catastrophic event occur. As such, it’s vital for fan owners to ensure that it is intact and properly
secured.
Reverse Operation: The beauty of MacroAir HVLS fans is that they are built to run in forward and
reverse mode, however changing the direction of your fan can put initial stress on the fan if it has
not been properly checked. It is a good idea to make sure the safety cables and all bolts and nuts
are tight. Cleaning the fan before switching directions will prevent dust and other particles from
falling off the fan airfoils that are now turning in the opposite direction.