Aerovent IM-165 - Manual

©2005 Aerovent
Centaxial Fans
Direct and Belt Driven
Aerovent Centaxial fans are designed for continuous duty in
air-moving systems handling clean air. As a general rule, these
fans are designed to be installed in any position. However,
larger fans and fans with high horsepower loading may not be
suitable for vertical installation. It is advisable to check with
the factory to determine if vertical installation is satisfactory.
Upon receipt of equipment, inspect the fan and its acces-
sories for possible damage in shipment. Make certain the
wheel rotates without binding. Never lift the Centaxial fan by
its motor, fan wheel or shaft. Lifting eyes are provided for this
purpose.
If the unit is not to be put in operation for a period of
time and is to be stored, the following precautions should be
observed:
1. Select a clean, dry location to prevent rust.
2. For outside storage, protect against the elements by cover-
ing the inlet and outlet of the fan.
3. Make certain bearings are filled with grease. (See General
Installation and Maintenance Manual IM-100 for lubrica-
tion procedure.)
4. Keep motors dry and clean.
5. Periodically inspect unit to see if conditions are present
which could cause damage.
Mounting Arrangements
Duct Mounted
The mounting flanges on the Centaxial fan are capable of
supporting the fan in ductwork and are of the same size at
the inlet and outlet for easy installation in a straight-line duct
system. However, the ducts must be structurally sufficient to
support the load. The following bolt sizes are required when
mounting fan to duct: 3 ∕
8
" on sizes 12 through 44; 1 ∕
2
" on sizes
49 and larger.
When suspending the fan from overhead with rods or other
arrangements, support of the load should be accomplished
by means of diagonal bracing to prevent side sway. Welded
construction of the support should be used rather than bolted
due to the loosening of bolts by vibration.
A concrete foundation should be provided for mounting the
centaxial fan on the floor. The size of the fan will determine
the size of the foundation. The concrete base should extend
approximately 6" beyond the outline of the fan and should
have a weight capable of supporting the unit. Anchor bolts
should be provided for bolting to the foundation.
Roof Ventilator
Where the centaxial fan is to be
mounted as part of a roof ventila-
tor assembly, caulking must be done
after assembly between flanges of
the head section and fan section and
base. Guy wire bracing is required
on all large size units to prevent side
sway.
See IM 120 for further instruc-
tions regarding roof ventilator instal-
lation.
HEAD
SECTION
BASE
FAN
SECTION
General Installation, Operation and Maintenance Instructions For Aerovent Products
AIRFLOW
Discharge
End
Horizontal - Ceiling Vertical - Ceiling
AIRFLOW
Discharge
End
Horizontal - Floor Vertical - Floor
IM-165
April 2005