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Aerovent IM-301 User Manual

Axiad ii fans, Im-301, 0 general description

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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

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