APP Series Knockdown Fan is manufactured, assembled and packaged with the highest standard of
quality assurance. Please inspect and notify the factory in the unlikely event you discover defects in
workmanship. We appreciate hearing from you and will correct immediately.
Read carefully before attempting to assemble, install, operate or maintain the product d escribed. Prote ct
yourself and others by observing all safety information. Use only genuine AP parts in the installation of
fans, use of non-genuine parts or failure to comply with instructions could result in persona l injury a nd/or
property damage. This fan is not designed for use in atmospheres where risk of explosion is foreseen.
Such environments may include enclosed areas of high dust concentrations, gas vapors and fumes.
Use in such an atmosphere is prohibited. If in doubt, contact AP or your dealer.
Retain instructions for future reference.
Fan ModelsCFM at 0.00 SPWeight Lbs./kgsCubic Ft./mtrs
Installing the Driven Pulley onto the Shaft ...........................................................................................23
Installing the Propellar ..........................................................................................................................24
Installing the Belt .............................. ... ... .......................................... ... .................................................25
Chapter 9 Installing a Discharge Cone ..............................................................................................................26
Assembling a Segmented Discharge Cone .........................................................................................27
Mounting the Cone to the Fan Housing ...............................................................................................28
Guard Detail for 50" Fan ......................................................................................................................29
Chapter 10 Parts List ...........................................................................................................................................30
This is the safety alert symbol. It is used to alert you
to potential personal injury hazards. Obey all safety
messages that follow this symbol to avoid possible
injury or death.
WARNING indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION, used with the safety alert symbol, indicates a
hazardous situation which, if not avoided, could result in
minor or moderate injury.
NOTICE is used to address practices not related to
personal injury.
DANGER indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
Safety Guidelines
This manual contains information that is important for you, the owner/operator, to know and understand.
This information relates to protecting personal safety and preventing equipment problems. It is the
responsibility of the owner/operator to inform anyone operating or working in the area of this equipment
of these safety guidelines. To help you recognize this information, we use the symbols that are defined
below. Please read the manual and pay attention to these sections. Failure to read this manual and its
safety instructions is a misuse of the equipment and may lead to serious injury or death.
DANGER
WARNING
CAUTION
NOTICE
4PNEG-1016 APP Series Knockdown Fan
1. Safety
Follow Safety Instructions
Carefully read all safety messages in this manual and
safety signs on your machine. Keep signs in good
condition. Replace missing or damaged safety signs. Be
sure new equipment components and repair parts include
the current safety signs. Replacement safety signs are
available from the manufacturer.
Learn how to operate the machine and how to use controls
properly. Do not let anyone operate without instruction.
Keep your machinery in proper working condition.
Unauthorized modifications to the machine may impair
the function and/or safety and affect machine life.
If you do not understand any part of this manual or need
assistance, contact your dealer.
Read and Understand Manual
Safety Instructions
Our foremost concern is your safety and the safety of others associated with this equipment. We want to
keep you as a customer. This manual is to help you understand safe operating procedures and some
problems that may be encountered by the operator and other personnel.
As owner and/or operator, it is your responsibility to know what requirements, hazards, and precautions
exist, and to inform all personnel associated with the equipment or in the area. Safety precautions may be
required from the personnel. Avoid any alterations to the equipment. Such alterations may produce a very
dangerous situation where SERIOUS INJURY or DEATH may occur.
This equipment shall be installed in accordance with the current installation codes and applicable
regulations, which should be carefully followed in all cases. Authorities having jurisdiction should be
consulted before installations are made.
User Manual
This manual contains information and instructions essential to the safe installation and use of the
APP Series Knockdown Fans. Read this manual thoroughly before attempting any installation or use of
the APP Fan. Keep this manual with the APP Fan or in a location where it can be readily accessed. Failure
to read this manual and its safety instructions is a misuse of the equipment.
Correct Use of the APP Series Knockdown Fan
The APP Series Knockdown Fan is designed solely for the purpose of ventilating agricultural buildings.
Use of the system in any other way is a misuse of the system and may endanger safety and health.
Only genuine AP parts are to be used in the installation and use of the APP Series Knockdown Fan.
Use of other non-genuine parts is a misuse of the system and may lead to dangerous situations imperilling
the safety and health of you and others.
This machine is not designed for use in atmospheres where there is a risk of explosion. Such
environments may include enclosed areas of high dusts concentrations, gas vapors and fumes. Use of the
APP Fan in such an environment is prohibited. If in doubt, contact AP or your dealer.
PNEG-1016 APP Series Knockdown Fan5
1. Safety
Unpacking
When receiving the unit, inspect carefully for any damage that may have occurred during transit. Shipping
damage claim must be filed with carrier.
Electrical Safety
An adequate and safe power supply to the APP Series Knockdown Fan unit is essential for safety.
A competent and qualified electrician must undertake all electrical wiring. All wiring is to be installed
according to the National Standards and Regulations relevant to your Country and Region.
Safety Guards
The APP Series Knockdown Fan contains many moving and electrical parts, which will cause serious
injury or death if touched. Guards are placed on the machine for your protection. Operating the
machine at any time with guards removed or incorrectly fitted is a serious misuse of the machine and
endangers safety.
Safety in Handling the APP Series Knockdown Fan
Manual handling of the fans can be a cause of serious injury. Wherever possible, use mechanical lifting
equipment when lifting or moving fans during installation. Where manual handling is required, seek
assistance from other people.
To prevent injury, use suitable hand protection.
Safety in Maintenance
While the APP Series Knockdown Fan is designed to keep maintenance to a minimum, some repairs will
be necessary in the course of the life of the machine. Do not attempt any repairs on the machine unless
you are competent to do so. Remember that the APP Series Knockdown Fan may in cases operate under
automatic control and start without warning. Never attempt any work on the APP Series Knockdown Fan
without first isolating the machine from the main power and locking the isolator so that only you can turn
the power back ON.
Follow all the guidelines given in the maintenance section on Page 11 of this manual.
Before restarting the APP Series Knockdown Fan, ensure that all electrical enclosures are locked closed
and all guards and other safety measures are correctly fitted.
If in any doubt, contact your dealer or AP for assistance.
General Safety Information
This unit should be assembled and installed by a qualified technician.
Follow all local electrical and safety codes, as well as the National Electrical Code (NEC) and the
Occupational Safety and Health Act (OSHA).
Motor must be securely and adequately grounded. This can be accomplished by wirin g with a grou nded,
metal-clad raceway system by using a separate ground wire connected to the motor’s ground lug or other
suitable means.
Protect power cable from coming in contact with sharp objects.
Do not kink power cable and never allow cable to come in contact with oil, grease, hot surfaces,
or chemicals.
Make certain that the power source conforms to requirements of the equipment.
6PNEG-1016 APP Series Knockdown Fan
2. Decals
Lockout power
before servicing.
HIGH VOLTAGE
Will cause serious
injury or death.
STAY CLEAR OF
ROTATING BLADE
May cause serious injury.
Blade may start
automatically.
Disconnect and
lockout power sources
before servicing.
FLYING OBJECTS
HAZARD
Danger of eye injury.
Wear eye protection.
DANGERDANGER
WARNING
WARNING
DC-1540The GSI Group 217-226-4421
WARNING
DC-1018
Inside housing
DANGER
Lockout power
before servicing.
HIGH VOLTAGE
Will cause serious
injury or death.
STAY CLEAR OF
ROTATING BLADE
May cause serious injury.
Blade may start
automatically.
Disconnect and
lockout power sources
before servicing.
FLYING OBJECTS
HAZARD
Danger of eye injury.
Wear eye protection.
DANGERDANGER
WARNING
WARNING
DC-1540The GSI Group 217-226-4421
Safety Signs and Warnings
The following pages show you exactly where the safety signs and warnings (d ecals) should be placed on
your APP Series Knockdown Fan. If a decal is missing, damaged or unreadable, please contact your
dealer or AP for a free replacement.
WARNING
SHEAR POINT
Keep hands clear of moving
parts. Do not operate with
guard removed. Disconnect
and lockout power before
servicing.
DC-995GSI Group Inc. 217-226-4421
DANGER
HIGH VOLTAGE
Will cause serious
injury or death.
Lockout power
before servicing.
PNEG-1016 APP Series Knockdown Fan7
WARNING
STAY CLEAR OF
ROTATING BLADE
Blade may start
automatically.
May cause serious injury.
Disconnect and
lockout power sources
before servicing.
WARNING
FLYING OBJECTS
HAZARD
Danger of eye injury.
Wear eye protection.
DC-1540The GSI Group 217-226-4421
2. Decals
Left side
DANGER
DANGER
Right side
Lockout power
before servicing.
HIGH VOLTAGE
Will cause serious
injury or death.
STAY CLEAR OF
ROTATING BLADE
May cause serious injury.
Blade may start
automatically.
Disconnect and
lockout power sources
before servicing.
FLYING OBJECTS
HAZARD
Danger of eye injury.
Wear eye protection.
DANGERDANGER
WARNING
WARNING
DC-1540The GSI Group 217-226-4421
DANGER
Motor mount plate
DANGER
DANGER
DANGER
HIGH VOLTAGE
Will cause serious
injury or death.
Lockout power
before servicing.
WARNING
STAY CLEAR OF
ROTATING BLADE
Blade may start
automatically.
May cause serious injury.
Disconnect and
lockout power sources
before servicing.
WARNING
FLYING OBJECTS
HAZARD
Danger of eye injury.
Wear eye protection.
DC-1540The GSI Group 217-226-4421
DANGER
HIGH VOLTAGE
Will cause serious
injury or death.
Lockout power
before servicing.
WARNING
STAY CLEAR OF
ROTATING BLADE
Blade may start
automatically.
May cause serious injury.
Disconnect and
lockout power sources
before servicing.
WARNING
FLYING OBJECTS
HAZARD
Danger of eye injury.
Wear eye protection.
DC-1540The GSI Group 217-226-4421
DANGER
WARNING
STAY CLEAR OF
ROTATING BLADE
Blade may start
automatically.
May cause serious injury.
Disconnect and
lockout power sources
before servicing.
WARNING
HIGH VOLTAGE
FLYING OBJECTS
Will cause serious
HAZARD
injury or death.
Danger of eye injury.
Lockout power
before servicing.
Wear eye protection.
DC-1540The GSI Group 217-226-4421
DANGER
HIGH VOLTAGE
Will cause serious
injury or death.
Lockout power
before servicing.
8PNEG-1016 APP Series Knockdown Fan
WARNING
STAY CLEAR OF
ROTATING BLADE
Blade may start
automatically.
May cause serious injury.
Disconnect and
lockout power sources
before servicing.
WARNING
FLYING OBJECTS
HAZARD
Danger of eye injury.
Wear eye protection.
DC-1540The GSI Group 217-226-4421
DANGER
HIGH VOLTAGE
Will cause serious
injury or death.
Lockout power
before servicing.
STAY CLEAR OF
ROTATING BLADE
Blade may start
automatically.
May cause serious injury.
Disconnect and
lockout power sources
before servicing.
FLYING OBJECTS
HAZARD
Danger of eye injury.
Wear eye protection.
WARNING
WARNING
DC-1540The GSI Group 217-226-4421
3. Installation
Fans should be installed in an exterior wall located where there will be no obstructions to the flow of air
into or out of the fan.
Once a location has been determined, an opening should be made in the wall and framed to provide
enough clearance around the fan housing. (See rough opening charton Page 10.)
Framing must be able to support the weight of the fan assembly.
Manual handling of the fans may result in serious injury. Where appropriate, use mechanical methods of
lifting during installation. Where manual handling is required, ensure you have adequate assistance.
Position fan assembly in the framed opening. Rigidly mount the housing side flanges to the framework
using mounting screws.
Remove electrical cover and connect power leads to motor terminals, using approved wiring method.
It is recommended to use the watertight connector included with the motor, if it is possible in the
application. (Motor terminal connection data is provided on motor nameplate and in this manual.) Use
adequate size wire for all branch and feeder runs. When speed control is used, follow the installation
procedures recommended by the speed control manufacturer.
Re-install electrical cover.
Unit is now ready for operation.
PNEG-1016 APP Series Knockdown Fan9
4. Operation
* Add - BLK suffix to end of fan model for black fans.
Fan ModelWidth (in.)Inside Height (in.)Outside Height (in.)
BA
APPB-36*44-1/244-1/243-1/2
APPB-50*565655
Figure 4A
Ref #Description
AOutside House Height
BInside House Height
Units may be operated using a switch, thermostat, timer or controller.
Follow wiring and operation instructions furnished with the control system selected.
When using speed controllers, follow the operation procedures recommended by the
controller manufacturer.
1. Set thermostat setting to a desired temperature. Fan will operate only when ambient temperature is
above the thermostat set temperature.
2. Some controllers have idle speed controls. Set idle speed such that the blade RPM is within the
RPM range listed in the performance table.
10PNEG-1016 APP Series Knockdown Fan
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