Aerovent IM-301 - Manual

General Installation, Operation and Maintenance Instructions For Aerovent Products
©2000 Aerovent
1.0 GENERAL DESCRIPTION
The AXIAD II axial flow fan comes in various configurations
that offer flexibility to meet the needs of the end user.
1.2 DEFINITIONS
An axial fan consists of a propeller type rotor, motor
driven and ducted or shrouded so that the blades are enclosed
to increase operating efficiency.
A vaneaxial fan is an axial fan with a downstream vane
section. The vane section transforms the whirling energy from
the rotor into useful pressure energy, increasing the static pres-
sure capability of the fan.
An adjustable pitch rotor is one where the blade angle
can be changed, but only when the rotor is stationary.
1.2.1 Arrangements
AXIAD fans are available in two different configura-
tions, defined as follows:
Arrangement 4, Type 2 — The rotor is mounted
directly on the motor shaft, and the motor is upstream of the
rotor, with both rotor and motor enclosed in the fan tube.
Arrangement 4, Type 3 — The rotor is mounted
directly on the motor shaft, and the motor is upstream of the
rotor, but supported outside the fan tube.
1.3 APPLICATION
If the application requires that the inlet to the fan be
ducted, Arrangement 4 Type 3 cannot be used. The
Arrangement 4 Type 2 fan is furnished with an inlet duct
flange to which an inlet duct or an inlet bell can be fastened.
Arrangement 4 Type 3 fans are ideally suited for ple-
num applications with a free inlet condition as this arrange-
ment can permit the fan to be placed much closer to the coils
or filters upstream.
1.4 ACCESSORIES
Various accessories are available for AXIAD II fans.
a. Inlet bell and screen (standard on Arrangement
4 Type 3)
b. Inlet cones
c. Vane section
d. Discharge diffusers (two types)
e. Acoustic discharge diffusers
f. Flexible duct connections and band clamps
g. Gravity backdraft dampers
h. Vibration isolation
1.5 OPTIONS
AXIAD II fans may be furnished with various options
to meet job requirements:
a. Legs for floor mounting
b. Brackets for vertical or horizontal support from
the floor or ceiling.
1.6 NAMEPLATE NOMENCLATURE
The model number information on each fan nameplate is
explained in Figure 1.
2.0 INSTALLATION
2.1 CRATING
AXIAD fans are shipped on a wooden pallet. Each fan
is normally covered with plastic for weather protection. The
fan should remain on the pallet until installation.
Carefully inspect the fan upon arrival for damage
incurred during shipment. Immediately report any damage to
both the factory and the carrier.
MODEL NUMBER DESIGNA TION
AXIAD II FANS
FTFA - __ - __ __ __ - __ - __ __ - __ __ __ __ - __ __ __
ARR. 4 TYPE 2 =
2 = HORIZONTAL FLOOR LEG
4 = HORIZONTAL CEILING CLIP
6 = VER TICAL CLIP
ARR. 4 TYPE 3
3 = FLOOR MOUNT
FAN SIZE (cm) =
056
063
071
080
090
112
125
140
HUB SIZE =
3 = 35.5 cm Dia.
4 = 45.0 cm Dia.
5 = 56.0 cm Dia.
BLADE COUNT =
3 = if Half-Bladed, 3 Hub
6 = if Full Bladed, 3 Hub
4 = if Half Bladed, 4 Hub
8 = if Full Bladed, 4 Hub
5 = if Half Bladed, 5 Hub
10 = if Full Bladed, 5 Hub
MOTOR RPM =
MOTOR HP =
NOTES:
1. Motor frame size must be specified in the body of the order and will no longer be indicated
within the model number.
2. Blade pitch must be indicated in the body of the order.
3. AXIAD fans must be clearly identified as either vaneaxial or tubeaxial type.
Figure 1.
AXIAD II FANS
IM-301
August 2014
®