Acme Engineering AVD Installation Manual

Acme Engineering & Manufacturing Corp.

P.O. Box 978

Muskogee, Oklahoma 74402
Phone [phone] Fax [phone]
www.acmefan.com [e-mail]

VANEMASTER FANS

SERIES AVD VANEAXIAL FAN

INSTALLATION/MAINTENANCE INSTRUCTIONS

Form 690016

I. Introduction

Your vaneaxial fan is a carefully engineered and
constructed piece of machinery which will give
long, satisfactory service provided correct
installation and proper maintenance practices
are observed. DO NOT DESTROY THIS
DOCUMENT AFTER INSTALLATION - RETAIN
WITH THE UNIT FOR MAINTENANCE.
Preventative maintenance including periodic
inspection, testing, cleaning, lubrication and
replacement of worn parts will forestall
equipment breakdowns and minimize equipment
shut-downs.

In addition to this manual, all fans are shipped
with the Air Movement and Control Association
(AMCA) Publication 410-90. “Recommended
Safety Practices for Users and Installers of
Industrial and Commercial Fans”. If you did not
receive this booklet, immediately contact the
factory to obtain a copy or contact AMCA directly.
The AMCA Safety Publication 410-90 should be
read before installing and operating the
equipment to insure safety of personnel and
equipment.

AMCA ARRANGEMENT 4 - DIRECT DRIVE

The basic AVD fan consists of a housing,
impeller, guide vanes, motor shell and a motor.
The AVD impeller consists of two assembled, die
formed, galvanized steel hub disks with cavities
to house the blades at preset angles. The
impeller blades are cast aluminum. The AVD
blades can be set at an angle between 25 and 60
degrees to allow precise performance selection.
The impellers are statically and dynamically
balanced at the blade angle required to obtain
the specified point of operation. The AVD fan
housing is accurately formed from plate steel with
integrally rolled inlet and outlet flanges. High
efficiency straightening vanes of heavy gauge
steel are installed downstream of the impeller to
eliminate swirl and regain static pressure. The
AVD straightening vanes are structurally
designed to support the weight of the motor and
impeller. TEFC, flange mounted motors are
provided as standard. The completely
assembled fan is given a running check test and
inspection before final shipment.

II. AVD ACCESSORIES

A wide range of accessories and options are
available for the AVD fan:

1. Safety Guards are utilized to prevent
contact with rotating parts and prohibit
foreign objects from being drawn into the
fan. The wire guard is designed as a
heavy gauge wire screen which can be
supplied on the flanged fan housing or inlet
bell.

2. Inlet Bells are recommended whenever
the fan is intended for operation with an
open inlet. Inlet bells are formed from
heavy gauge steel to provide a smooth
entrance condition to the fan inlet and
minimize performance losses.

3. Housing Support Options fabricated of
heavy steel plate include: horizontal
mounting feet for floor mounting or ceiling

suspension.

4. Outlet Cones (Diffusers) are generally
used on the fan outlet to increase
pressure. These diffusers are sometimes
used on the inlet of the fan. The cones are
fabricated of heavy gauge steel and are
available in a short and long version.

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5. Roof Curb Mounting Base is designed for
vertical roof mounted units consisting of a
one piece, heavy gauge, reinforced steel
mounting platform for bolting to the fan
flange.

6. Discharge Hood for vertical mounted units
is designed for weather protection on either
the inlet or outlet side of the fan. The
discharge hood is constructed of heavy
gauge steel.

7. Other Available Options

· Access Doors in Housing

· Sound Attenuation

· Vibration Isolators

· Variable Frequency Drives

III.Installation and Start-Up

A. Receiving

Acme Eng. & Mfg. Corp.’s equipment is
thoroughly inspected and packaged at the
factory. When a carrier signs the Acme
Engineering & Manufacturing Corporation’s bill
of lading, the carrier accepts the responsibility for
any subsequent shortages or damage, evident
or concealed, and any claim must be made

against the carrier by the purchaser within 15
days after receipt. Evident shortage or damage

should be noted on the carrier’s delivery
document before signature of acceptance.
Inspection by the carrier of damage evident or
concealed must be requested. After inspection,
issue a purchase order for necessary parts or
arrange for return of the equipment to the Acme
factory for repair.

B. Handling

Acme Engineering & Manufacturing Corporation
fans are shipped completely assembled and
packaged. The units may be handled and
moved using good rigging techniques, being
careful to avoid concentrated stresses that will
distort any of the parts.

C. Safety Precautions

receive this booklet, immediately contact the
factory to obtain a copy or contact AMCA
directly. The AMCA Safety Publication 410-90
should be read before installing and operating
the equipment to promote safety of personnel
and equipment. This unit has rotating parts and
safety precautions should be exercised during
installation, operation and maintenance.

The maximum operating speed for which this fan
is designed must not be exceeded. These limits
are available through Acme Engineering &
Manufacturing Corporation’s Applications
Group.

The maximum operating temperatures are given
in “Installation” Section B.5, Item 9 below.

Do not use fans in hazardous environments
where fan’s electrical system could provide
ignition to combustible or flammable materials
unless built specifically for the environment.

D. Storage

Acme provides sufficient protection for shipping
the equipment to the jobsite. If the equipment is
not installed immediately, additional precautions
are necessary. For storage:

1. Equipment shall be kept in a dry area, free
from rigid and extreme changes in humidity
and protected from low temperature. The
unit should not be exposed to vibration.

2. Rotor should be blocked to prevent
windmilling.

3. The impeller should be rotated several
revolutions every 90 days to re-coat the
motor bearings with grease and to minimize
brinelling of the motor bearings.

4. Every 6 months, add high quality grease to
bearings to purge and replace old grease.

5. Upon removal from storage, bearings
should be supplied with an ample supply of
fresh grease to purge and replace the old
grease. High quality ball bearing grease
should be used per the motor
manufacturers recommendations.

In addition to this manual, all fans are shipped
with the Air Movement and Control Association
(AMCA) Publication 410-90, Recommended
Safety Practices of Users and Installers of
Industrial and Commercial Fans. If you did not

6. Acme does not recommend use of any
plastic to cover the fan equipment as this
can create condensation, rusting and
equipment damage.

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