Information
AVD 370/2 FAN
© 2019 MacroAir Technologies Toll Free: 866 668 3247 Fax: 909 890 2313 www.macroairfans.com
AVD 370/2 INSTALLATION MANUAL 90-30071-00 Rev A-01 Date: 030121
47
Maintenance
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. The guy wires should be under
enough tension to prevent any movement in the motor unit or the extension tube. If the motor
unit can be moved by pushing on it, the guy wires need to be tightened. Fan owners should
confirm that the guy wires are not wrapped around any sharp edges. MacroAir recommends
attaching guy wires to the building with eyebolts or eye lags. If they are not already installed
with eye bolts or lags, we urge fan owners to install these 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.
Blade Cleaning:
Depending on the type of commercial application the MacroAir fan is in, there
can be quite a bit of dust or other particulates that cling to the fan
’s
blades. While this may not
affect fan performance, we recommend fan owners keep blades clean by having a maintenance
person or skilled trade professional
–
who has experience using a lift
–
wipe the fan blades with
a rag or sponge using hot water or mild 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 vi
tal for fan owners to ensure that the safety cable 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 guy wires, 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 when turning in the opposite direction.
Maintenance Plan:
Things to look for include properly torqued fasteners, rust, cracked welds,
unusual noise, hub migration/movement, guy wire loosing or movement.
Years 1-10:
One inspection on lift per year.
Year 11 and beyond:
Annual inspections from a lift and seasonal inspections both before and
after the busy season from the ground.
NOTE:
If there are issues or concern discovered during an inspection, please contact the service
and technical support department at MacroAir for help.
CONTACT US:
For installation assistance, application questions, technical sales support & any
other inquiries, please contact us at
(866) 668-3247
.
