Aerovent IM-166 - Manual

Introduction
This bulletin has been prepared to guide the users of
AMX Mixed Flow Fans in the proper installation, opera-
tion and maintenance procedures to insure maximum
equipment life with trouble-free operation.
Shipping and Receiving
All Aerovent products are carefully constructed and
inspected before shipment to insure the highest stan-
dards of quality and performance. Compare all compo-
nents with the bill of lading or packing list to verify that
the proper unit was received. Check each unit for any
damage that may have occurred in transit. Any damage
should be reported immediately to the carrier and the
necessary damage report filed.
Handling
Handling of all air moving equipment should be con-
ducted by trained personnel and be consistent with safe
handling practices. Verify the lift capacity and operating
condition of handling equipment. Maintain handling
equipment to avoid serious personal injury.
Units shipped completely assembled may be lifted
with slings and spreader bars. Use well-padded chains,
cables or nylon straps (see Figure 1). On most units,
lifting lugs are fashioned to protect the fan and fan
housing from damage. Never lift a fan by the inlet or
discharge flange, shafting or drives, wheel, motor or
motor base, or in any other manner that may bend or
distort parts.
If installation is to be delayed, store the unit in a
protected area. Protect the fan and motor bearings from
moisture and vibration (or shock loading). For extended
storage, wrap entire unit in plastic. Wrap loosely so air
may circulate around the fan and moisture does not
collect, or use a desiccant. Extended storage requires
monthly inspections. Check for corrosion or damage to
the unit and for debris within the fan. Rotate the fan
wheel a few revolutions. Stop the wheel in a position
other than the initial position. Grease the bearings every
month with a grease compatible with the grease sup-
plied with the bearings.
Foundations and Supporting Structures
The AMX series can be mounted horizontally, vertically,
or at any angle if ordered accordingly. Mounting brackets
are available to accept both vibration isolating hangers
or pads. Typical mounting arrangements are shown in
Figures 2 through 8. Floor or wall mounted fans may be
installed on a flat, rigid foundation.
When mounting to concrete, anchor bolts should be
“L” or “T” shaped with sufficient length for nuts, wash-
ers, shims, and threads for draw-down. Each bolt should
be placed in a sleeve or pipe with diameter larger than
the bolt to allow for adjustment. When the mounting
surface and the surface of the fan base do not match,
shim level. Do not distort the fan when tightening the
anchor bolts.
A fan mounted to or within a structure should be
placed as close as possible to a rigid member such as
a wall or a column. The structure must be designed for
rotating equipment. Static design for strength is not suf-
ficient to insure operation at low vibration levels. Supports
for suspended fans must be cross-braced to prevent
side-sway. Structural resonance should be at least 20%
from fan operating speed. Vibration isolators may help
block the transmission of vibration into a structure.
Any ducting should have independent support; do not
use the fan to support ducting. Flexible connections are
required whenever the fan is supported on vibration
isolators.
Fan Installation, Factory Assembled Units
Follow proper handling instructions as given earlier.
1. Move the fan to the final mounting position.
2. Remove skid, crates and packing materials carefully.
3. Attach vibration isolators (if used) to appropriate
mounting clips on fan. Locate fan in position using
lifting instructions above.
4. Carefully level unit using shims (on rigid mounted
fans) at mounting hole locations. Fans mounted with
vibration isolators may be leveled by adjusting the
hardware.
5. Continue with Operations Checklist.
Figure 1.
Lifting With Lifting Lugs Lifting With Straps &
(Standard) Spreader Bar (Not Provided)
©2009 Aerovent
AMX Mixed Flow Fans
General Installation, Operation and Maintenance Instructions For Aerovent Products
IM-166
September 2009