Acme Engineering AVD Installation Manual

Acme Engineering & Manufacturing Corp.
P.O. Box 978
Muskogee, Oklahoma 74402 Phone 918/682-7791 Fax 918/682-0134 www.acmefan.com acmefan@acmefan.com
VANEMASTER FANS
SERIES AVD VANEAXIAL FAN
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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