Allegro Industries 9505 User Manual

USER’S MANUAL

9502

9505

9503

9505-50

9503-AU

9507

9503E

9508

9504

9512

9504-50

9512-AU

9504-50E

9512E

for

CENTRIFUGAL BLOWER

Read and understand all instructions before using this product. Open carton carefully and inspect product
for damage caused by carrier. If any damage is found, report and submit claim to carrier.

TABLE OF CONTENTS

PAGE NUMBER

INTRODUCTION/DESCRIPTION ...........................................................................3

SAFETY PRECAUTIONS .......................................................................................4-5

WARNINGS AND LIMITATIONS.............................................................................6

OPERATION/USERS INSTRUCTIONS ..................................................................7-12

BLOWER SPECIFICATIONS ..................................................................................13

MAINTENANCE ......................................................................................................13-16

TROUBLESHOOTING ................................ ................................ ............................16-17

STORAGE ...............................................................................................................17

CONFINED SPACE APPLICATIONS .....................................................................17-18

HAZARDOUS LOCATION INFORMATION ............................................................18

WARRANTY & RETURN POLICY ..........................................................................19-20

2

INTRODUCTION

This manual provides instructions for the use and maintenance of Allegro Industries
CENTRIFUGAL BLOWERS. You must read and understand this manual and be trained in
the proper use of the equipment before using it in a contaminated atmosphere.

There are many federal, state, and local codes and regulations governing sales,
construction, installation and/or use of products for certain purposes, which may vary.
Allegro cannot be responsible for how the products are used and installed. Before
purchase and use, the buyer must review the product application, and be sure that the
product installation and use will comply with those regulations.

For more information and assistance on Allegro Industries products, contact Allegro
Technical Support toll-free at 1-800-622-3530 or e-mail at: [e-mail].

DESCRIPTION

Allegro Centrifugal Blowers are designed to offer high output CFM in easy-to-use portable
configurations. They are available in outputs from 760 up to 3000 CFM of free air. The
centrifugal blowers are available in a range of styles, sizes and power supplies. For
Explosion-Proof Blowers, the receptacle should be installed by qualified personnel and is
sold separately. Standard 115 VAC blowers include:

9512 Economy Blower
9512AU Economy Blower*
9512E Economy Blower*
9504 Standard Blower
9504-50 High Output Blower
9504-50E High Output Blower*
9502 Heavy Duty Blower
9507 Two Speed Blower
9503 Heavy Duty Explosion-Proof Blower
9503AU Heavy Duty Explosion-Proof Blower*
9503E Heavy Duty Explosion-Proof Blower*

* Models available in 220V/50 Hz
As an alternative to electrically driven blowers, Allegro offers the following:
9508 Air Driven Blower

9505 Gasoline Powered Blower with a Subaru 5.7 HP Engine
9505-50 Gasoline Powered Blower with a Honda 4HP engine

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SAFETY PRECAUTIONS

DO NOT operate blower until the operator completely comprehends the contents of this

manual. The blower is a specialized type of powered equipment, designed for a specific job
function and requires adequate and thorough instruction BEFORE it is operated. Each
person must receive adequate professional instruction regarding proper operation. Read
and understand this User Manual and the material supplied by the motor manufacturer.
Refer to OSHA 29 CFR (1926 and 1910) for job safety and health rules and regulations
covering construction.

DO NOT allow minors to operate the blower. Bystanders, children and animals should not
be allowed to be near the area where a blower is in use.

DO NOT use undersized wire size on electrical power cable or extension cords if used. This
will adversely limit the starting and load carrying capabilities of the motor. Always use
minimum AWG wire sizes for motor branch circuits. Consult the National Electric Code
Tables, Article 400, for specific information.

DO NOT operate the blower without the inlet and outlet screens properly secured and in
place. Never replace the screens with other than factory replacements (OEM). The screen
grid must comply with current OSHA regulations regarding protective enclosures to prevent
personal injury to the operator(s). Ensure that the structural integrity of the screens will allow
them to serve their protective function. Keep both screens free from obstructions and debris
to allow maximum airflow.

DO NOT stand directly in front of and/or face the blower outlet. Personal injury can result
from debris being thrown from the blower fan at relatively high velocity.

DO implement an operational safety program for this blower, to include but not limited to:
instructional requirements for operation, applicable OSHA requirements, local laws and
regulations, job site safety and blower maintenance. Operators must be fully instructed
regarding the specifics of this safety program. [Ref. 29CFR 1926.21 (b) (2)].

DO ensure the blower is in its original factory configuration and has not been modified. Any
modifications may result in potentially dangerous configurations that can lead to property
damage and/or personal injury, as well as voiding the manufacturer’s warranty.

DO ensure operator(s) are in adequate physical condition, mental health and not under the
influence of any substance (drugs, alcohol, etc.) which might impair vision, dexterity or
judgment. If you have any condition that might be aggravated by strenuous work, check with
your doctor before operating the blower. Guard against the possibility of back related
injuries. Always use proper lifting techniques when moving or carrying blower.

DO wear sturdy and snug fitting clothing. Never wear loose fitting jackets, scarves, neckties,
jewelry, flared or cuffed pants or anything that could become caught on controls or moving
parts. Wear long pants to protect your legs. To improve your grip and protect your hands,
wear heavy duty, non-slip gloves. Good footing is vital when transporting the blower, wear
sturdy steel-toed safety boots with non-slip soles. Sneakers or other similar type shoes do
not provide adequate protection.

DO wear an approved safety hard hat. Noise, generated by the blower, may damage your
hearing. Wear sound barriers (ear plugs or ear mufflers). Continuous and regular operators
should have their hearing checked regularly.

4

DO a visual inspection of the blower and check for damaged, worn, loose and/or broken
parts. Ensure all safety devices are operable and information decals are readable. Check to
see that the blower and all related accessories are in good mechanical condition before use.

DO verify the blower uses appropriate electrical cord and NEMA plug. Electrically driven
blowers are designed to operate ONLY from a grounded 115 volt AC, 60Hz, single phase
power source. Select models are available with 230 VAC or 220V/50Hz. All electrical wiring
installations and connections must comply with all applicable NEC statutes and with all
applicable local codes and practices.

DO consult current National Electric Code publications for specific information.
DO ground the blower motor securely. Ensure that the “grounding” wire and/or device are

properly grounding the motor. Failure to properly ground the motor may cause an electrical
shock and/or electrocution, resulting in personal injury or even death.

DO use a ground fault circuit interrupter (GFCI) (Allegro P/N: 9540). A ground fault circuit
interrupter (GFCI) is a safety device that disconnects power from a circuit to a load when a
potentially dangerous condition occurs. The GFCI acts like a fast-acting fuse or circuit
breaker, sensing small imbalances in the circuit caused by current leakage, and shutting off
electricity within 25mS (milliseconds). Use of a portable GFCI gives on-the-job protection
from electrical shock hazards caused by ground faults in commercial, industrial and
residential applications.

(For specific information, consult the NEC publications and OSHA publications for
construction sites, marinas or for use around any area containing water.)

DO know where the controls are, how they operate, and how to stop the blower in an
emergency.

DO verify the job site location classification. Certain job site locations may be classified as
hazardous because of explosive concentrations of gas, vapor or dust in the atmosphere.
The National Electric Code divides these locations into Classes and Groups according to the
type of explosive agent. For specific information, consult the NEC, Section 500. Use Allegro
Explosion-Proof Blowers for operation in an explosive or flammable atmosphere. The use of
any other blower not designed for use in a Hazardous Location may result in personal injury
or death.

DO place the blower on secure footing to prevent it from shifting while in use. Such
movement can cause injury to the operator(s) or damage to the blower itself.

DO ensure blower is operated in a horizontal position to meet the enclosure definition. The
blower is designed for operation in job site areas that are reasonably dry, clean and provide
for a continuous, dynamic source of air for cooling the motor. Any questions about operating
environments, contact the Allegro Technical Support at 1-800-622-3530, or e-mail at

[e-mail], before using the blower.

5

WARNINGS AND LIMITATIONS

CAUTION!

The final working procedure for any job application involving the use of the blower must be
individually determined after careful analysis of all factors and/or conditions present. The
nearest OSHA office is a valuable source for applicable information regarding the operation
of the blower.

CAUTION!

Before using the blower, check all applicable federal, state, industry and local regulations
regarding the use of flame resistant and/or self-extinguishing duct materials for the intended
job applications. It is the responsibility of the owner(s) and/or operator(s) to determine that
the duct material in use for the job application meets all applicable fire code and OSHA
requirements.

DANGER!

Never enter a manhole or confined work area until it has been determined to be safe for
entry, tested with appropriate gas detection equipment and ventilated for a minimum of five
(5) minutes with the blower at maximum speed.

DANGER!

Always stop the motor and disconnect the power source to prevent accidental starting and/or
the possibility of receiving an electrical shock.

Manufacturing tolerances and specific operating parameters will affect the overall flow
rate(s) for each particular blower. Actual flow rate will decrease when the total length of
the ducting is increased more than 15 feet (7.6m). Actual flow rates may change if
blower is used with ducts manufactured and/or supplied by other sources.

6