GSI Group PNEG-163-08 User manual

PNEG-163-08
Centrifugal Fan Installation
and Operation
Owner’s Manual
PNEG-163-08
Date: 03-11-13

2PNEG-163-08 Centrifugal Fan
Check List
1. All wire connections
2. Tip clearance on blade
3. Fan blade torqued to torque specs
4. Grill guard in place and tight
5. Fuse in place, extra fuse provided
6. Motor rotation correct
7. Contactor engages properly
8. Running amperage
9. Vibration
10. All fasteners tight
11. Indicator light
12. All decals and serial number tag
13. Aesthetic appearance
14. Manual
15. Manual supplements for double inlet fans
Model #:
Serial #:
Tester Signature:
Date:

Table of Contents
PNEG-163-08 Centrifugal Fan 3
Contents
Chapter 1 Safety .....................................................................................................................................................5
Safety Guidelines .................................................................................................................................. 5
Safety Instructions ................................................................................................................................. 6
General Safety Statement ..................................................................................................................... 9
Chapter 2 Safety Decals ......................................................................................................................................10
Chapter 3 Installation ..........................................................................................................................................14
Pre-Installation Requirements ............................................................................................................. 14
Fan Installation .................................................................................................................................... 15
Electrical Installation ........................................................................................................................... 15
Test Run .............................................................................................................................................. 16
Ground Rod Installation ...................................................................................................................... 17
Chapter 4 Fan Specifications ..............................................................................................................................18
1750 RPM Fan Electrical Specifications ............................................................................................. 18
3500 RPM Fan Electrical Specifications ............................................................................................. 19
Fan Dimensions .................................................................................................................................. 20
Discharge Bolt Pattern Dimensions .................................................................................................... 21
Inlet Cone Dimensions ........................................................................................................................ 22
Fan Wheel Dimensions ....................................................................................................................... 23
Fan Pad Location ................................................................................................................................ 24
Chapter 5 Operation ............................................................................................................................................25
Fan Start-Up ........................................................................................................................................ 25
Fan Shut Down ................................................................................................................................... 25
Maintaining Grain Quality .................................................................................................................... 25
Grain Storage ...................................................................................................................................... 26
Chapter 6 User Servicing Instructions and Troubleshooting ..........................................................................27
Fan Wheel Removal and Installation .................................................................................................. 27
Fan Wheel Inspection and Maintenance ............................................................................................. 28
Taper-Lock Bushing Torque Requirements ........................................................................................ 29
Fan Motor Removal and Installation ................................................................................................... 29
General Inspection .............................................................................................................................. 29
Lubrication and Bearings .................................................................................................................... 30
Troubleshooting Charts ....................................................................................................................... 31
Chapter 7 Parts List .............................................................................................................................................33
Main Assembly - 1750 RPM Fans ....................................................................................................... 34
Main Assembly - 3500 RPM Fans ....................................................................................................... 39
Main Assembly - Single Inlet Direct Drive Fan .................................................................................... 44
Main Assembly - Double Inlet Fan ...................................................................................................... 45
Internal Bearing Arch Assembly - Double Inlet Fan ............................................................................ 46
Motor Drives - Double Inlet Fan .......................................................................................................... 47
Shaft Coupling ..................................................................................................................................... 48
Small Control Panel 1 Phase 230 Volt (CPS-230-1) ........................................................................... 50
Small Control Panel 3 Phase 230 Volt (CPS-230-3) ........................................................................... 52
Large Control Panel 3 Phase 230 Volt (CPL-230-3) ........................................................................... 54
Small Control Panel 3 Phase 380V, 460V and 575V (CPS-345-3) ..................................................... 56
Large Control Panel 3 Phase 460V and 575V (CPL-345-3) ............................................................... 58
Motor Conduit Assembly ..................................................................................................................... 60

Table of Contents
4PNEG-163-08 Centrifugal Fan
Chapter 8 Schematics/Wiring Diagrams ............................................................................................................66
Wiring Schematic - 230 Volt 1 Phase .................................................................................................. 66
Wiring Diagram - CHS-3-1C ................................................................................................................ 68
Wiring Diagram - CF-10-1C and CHS-10-1C ...................................................................................... 69
Wiring Diagram - CF-15-1C ................................................................................................................ 70
Wiring Diagram - CF-5-1C, CF-7.5-1C, CHS-5-1C and CHS-7.5-1C .................................................. 71
Wiring Schematic - 230 Volt 3 Phase .................................................................................................. 72
Wiring Diagram - 230 Volt 3 Phase ..................................................................................................... 73
Wiring Schematic - 460 Volt 3 Phase .................................................................................................. 74
Wiring Diagram - 460 Volt 3 Phase ..................................................................................................... 75
Chapter 9 Appendix A .........................................................................................................................................76
Double Inlet Fans ................................................................................................................................ 76
Chapter 10 Warranty ............................................................................................................................................77

PNEG-163-08 Centrifugal Fan 5
1. Safety
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
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.

1. Safety
6PNEG-163-08 Centrifugal Fan
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 which 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 tothe 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.
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
Practice Safe Maintenance
Understand service procedures before doing work. Keep area
clean and dry.
Never lubricate, service, or adjust machine while it is in operation.
Keep hands, feet, and clothing away from rotating parts.
Keep all parts in good condition and properly installed. Fix
damage immediately. Replace worn or broken parts. Remove any
built-up grease, oil, and debris. Maintain Equipment
and Work Area

1. Safety
PNEG-163-08 Centrifugal Fan 7
Install and Operate Electrical Equipment Properly
Electrical controls should be installed by a qualified electrician
and must meet the standards set by the National Electrical Code
and all local and state codes.
Disconnect and lock out all power sources before installing
wires/cables or servicing equipment.
Electric Shock Hazard
Install and Operate Gas-Fired Equipment Properly
Fuel supply should be installed by a qualified gas
technician and must meet local and state codes for
gaseous fuel supplies.
Disconnect and lock out all fuel sources before
servicing equipment. Explosive Gases
Prepare for Emergencies
Be prepared if fire starts.
Keep a first aid kit and fire extinguisher handy.
Keep emergency numbers for doctors, ambulance service,
hospital, and fire department near your telephone. Keep Emergency Equipment
Quickly Accessible

1. Safety
8PNEG-163-08 Centrifugal Fan
Wear Protective Clothing
Ear plugs or muffs should be worn at all times to protect ears
from high noise levels.
Wear close-fitting clothing and safety equipment appropriate
to the job.
Remove all jewelry.
Tie long hair up and back.
Wear safety glasses at all times to protect eyes from debris.
Wear gloves to protect your hands from sharpedges on plastic
or steel parts.
Wear steel-toed boots to help protect your feet from falling
debris. Tuck in any loose or dangling shoestrings.
A respirator may be needed to prevent breathing potentially
toxic fumes and dust.
Wear a hard hat to help protect your head.
Wear appropriate fall protection equipment when working at
elevations greater than six feet (6').
Eye Protection
Gloves
Steel-Toed Boots
Respirator
Hard Hat
Fall Protection
Hearing Protection

1. Safety
PNEG-163-08 Centrifugal Fan 9
General Safety Statement
Our foremost concern is your safety and the safety of others associated with grain handling equipment.
This manual is to help you understand safe operating procedures and some problems which may be
encountered by the operator and other personnel.
Asowner and/oroperator,youareresponsibletoknowwhat requirements,hazards,andprecautionsexist
and 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, which may produce a very dangerous
situation, where SERIOUS INJURY or DEATH may occur.
You should consider the location of the bin site relative to power line locations or electrical transmission
equipment. Contact your local power company to review your installation plan or for information
concerning required equipment clearance. Clearance of portable equipment that may be taken to the bin
site should also be reviewed and considered. Any electrical control equipment in contact with the bin
should be properly grounded and installed in accordance with National Electric Code provisions and other
local or national codes.
This product is intended for the use of grain storage only. Any other use is a misuse of the product.
Sidewall bundles or sheets must be stored in a safe manner. The safest method of storing sidewall
bundles is laying horizontally with the arch of the sheet upward, like a dome. Sidewall sheets stored on
edge must be secured so that they cannot fall over and cause injury. Use care when handling and moving
sidewall bundles.
Personnel operating or working around equipment should read this manual. This manual must be
delivered with equipment to its owner. Failure to read this manual and its safety instructions is a misuse
of the equipment.
This product has sharp edges, which may cause serious injury. To avoid injury, handle
sharp edges with caution and always use proper protective clothing and equipment.

10 PNEG-163-08 Centrifugal Fan
2. Safety Decals
Safety decals should be read and understood by all people in the grain handling area. If a decal is
damaged or is missing contact:
GSI Decals
1004 E. Illinois St.
Assumption, IL. 62510
Phone: [phone]
A free replacement will be sent to you.
Stay clear of rotating
blade. Blade could
start automatically.
Can cause serious
injury. Disconnect
power before
servicing.
Restez éloigné de la
lame tournante. La
lame peut se mettre
en marche
automatiquement.
Peut causer de
sérieuses blessures.
Vérouillez le courant
avant l’entretien.
WARNING AVERTISSEMENT
DC-1949GSI Group Inc. 217-226-4421
Part #: DC-1949
Size: 4-7/8" x 3"
Located on fan housing side near fan inlet.
Part #: DC-1948
Size: 4-3/8" x 1-3/8"
Located inside control box.
DANGER
DANGER
DANGER
DANGER
Lockout power
before servicing.
Will cause serious
injury or death.
HIGH VOLTAGE
Couper/verrouiller le
courant avant l’entretien.
Causera de sérieuses
blessures ou la mort.
HAUTE TENSION
DC-1948
GSI Group 217-226-4421

2. Safety Decals
PNEG-163-08 Centrifugal Fan 11
DC-994
DC-994
Do not operate with
guard removed.
Lockout/tagout
before servicing.
DC-1749
WARNING
ã1994 HC S , Inc .
ROTATING SHAFT.
GSI Group 217-226-4421
AIRFLOW
AIRFLOW
CIRCULATION D’AIR
CIRCULATION D’AIR
DC-1971
Part #: DC-1749
Size: 3-3/4" x 1-3/4"
Located on fan coupling guard on motor driven fans.
Part #: DC-1971
Size: 4-3/4" x 1-1/2"
Located on painted inlet cone of fan housing.
HIGH VOLTAGE.
Will cause injury
or death.
Lockout power
before servicing.
HAUTE TENSION.
Causera des
blessures ou la
mort.
Bloquez le courant
avant de faire
l’entretien.
DC-1943
DANGER
DANGER
DANGER
DANGER
GSI Group 217-226-4421
Part #: DC-1943
Size: 5" x 3"
Located on fan housing side above motor and located on
outside of control box lid.

2. Safety Decals
12 PNEG-163-08 Centrifugal Fan
DC-994
NOTICENOTICE
GSI Group 217-226-4421 DC-2111
Read owner’s manual
before operating.
To maintain proper
working components
and avoid possible
failure at harvest time,
operate motor unit for
20 minutes each month.
AVISAVIS
LIRE LE MANUEL DU
PROPRIÉTAIRE AVANT
DE FAIRE FONCTIONNER.
FAIRE FONCTIONNER
ĽUNITÉ DE MOTEUR
MENSUELLEMENT ET
CE PENDANT 20 MINUTES.
CECI PERMET DE MAINTENIR
UN BON FONCTIONNEMENT
DES COMPOSANTS ET
AUSSI D`ÉVITER UNE
POSSIBILITÉ DE DÉFAILLANCE
VENANT LE TEMPS DE LA
RÉCOLTE.
Part #: DC-2111
Size: 3" x 5"
Located on fan housing motor side.
Part #: DC-219
Size: 3-1/2" x 1"
Located on fan inlet cone.
Part #: DC-1544
Size: 4" x 6"
Located on fan housing motor side.

2. Safety Decals
PNEG-163-08 Centrifugal Fan 13
Roof Damage Warning and Disclaimer
The manufacturer does not warrant any roof damage caused by excessive vacuum or internal
pressure from fansor other air moving systems. Adequate ventilationand/or “makeup air”devices
should be provided for all powered air handling systems. The manufacturer does not recommend
the use of downward flow systems (suction). Severe roof damage can result from any blockage of
air passages. Running fans during high humidity/cold weather conditions can cause air exhaust
or intake ports to freeze.
Excessive vacuum (or pressure) may
damage roof. Use positive aeration
system. Make sure all roof vents are
open and unobstructed. Start roof
fans when supply fans are started.
Do not operate when conditions exist
that may cause roof vent icing.
DC-969
CAUTION
GSI Group, Inc. 217-226-4421

14 PNEG-163-08 Centrifugal Fan
3. Installation
Pre-Installation Requirements
Foundation
Use the dimension illustration in the specifications section on Page 20 of this manual to determine the
physical size of the fan to be installed. Use the dimensions shown to determine the position of the fan
installation with respect to other equipment.
For proper operation of the fan, the unit is to be mounted on a level pad. The fan should not be anchored
to the pad, but it should be allowed to “float” on the pad. The fan pad should be offset 2" below the
top of the bin foundation. Refer to Figure 4F on Page 24 in the specifications section of this manual for
recommendations of pad placement with respect to various catalog transition ducts.
Transition
The transition duct should be all metal construction, with a gradual angle to the rectangularopening in the
bin wall. The duct should allow for a smooth transition with minimal resistance of the airflow from the fan
discharge to the bin plenum. Keep the entrance of the plenum as clear as possible from obstructions by
floor support.
Roof Exhaust
Adequate exhaust air openings in the roof are required to prevent any additional back pressure from
building in the bin. See roof damage warning on Page 13.
Power Supply
Adequate power must be supplied to the fan for reliable operation. Consult the local power company and
have a representative survey the installation. Only the power company can ensure that their system is
sized properly to provide adequate service to the installation and new equipment.
Wire Size
Undersized wire can lead to voltage drop which causes motor overheating and shortened motor life.
Use the electrical specifications chart on Page 18 in this manual to size the supply wire according to
the horsepower of the fan and the distance to the power supply. Refer to the fan specifications
on Page 18 to find the full load current of the motor for a given fan size. The full load current can also
be found on the motor nameplate.
Service Disconnect
Each fan motor must be supplied with an independent power circuit, equipped with a fused disconnect
switch. Locate this switch near the unit, as the power should be shut off before servicing the fan.
It is the customer’s responsibility to provide a fused disconnect and motor overload protection.
These must be properly sized and connected to allow proper motor operation. Failure to provide
these components could cause severe motor damage and void the manufacturer’s warranty.

3. Installation
PNEG-163-08 Centrifugal Fan 15
Fan Installation
1. Remove packaging materials and inspect fan for any shipping damages. Report these at once to
the shipper.
2. Check all fasteners on the fan to make sure they are tight. (Fasteners may loosen during shipment.)
Tighten any loose fasteners, check for proper clearance and retighten.
3. Check all electrical connections that may have loosened during shipment.
4. Rotate the fan wheel. Wheel should rotate freely and should not make contact with the housing sides
or inlet cone.
5. Place fan in proper location on the fan pad. Attach fan to transition duct and seal connection
with caulk.
6. Check all joints and seams around the lower part of the bin. Verify that these are well sealed to
prevent air leakage from the bin plenum. Inspect the transition duct as well. Seal any leaks that may
be present to prevent air losses that reduce fan efficiency.
7. Level fan. Fan pad should be poured flat and level, however, it may be necessary to adjust the legs
provided on the fan housing to level the fan. The legs should be adjusted so that when level, all
five (5) legs touch the pad. Fans not resting on support legs may have excess vibration which can
lead to premature wear and tear on fan components.
IMPORTANT: Electrical installation must be performed by a qualified electrician, in accordance with
National and Local Electrical Codes. Any violation of electrical wiring codes could
jeopardize the warranty.
Electrical Installation
1. Verify that the incoming power supply has been deemed adequate by the local power company.
2. Verify that the wiring supplying power to the fan is sized correctly for the distance away from supply
and fan horsepower. (See tables in specification section on Page 18.)
3. Verify that the safety disconnect is installed and sized correctly for the fan size. (See tables in
specification section on Page 18.)
4. Install a machine to earth ground for each individual fan. Refer to the ground rod installation
on Page 17.
5. The following wires must be supplied to each fan. Units without control transformers require a
separate neutral and earth ground connection.
6. The starter controls require 115 VAC power to operate. On 230 volt 3 phase units, this power is
supplied by L1 to neutral.
1 PH 230V L1, L2, N, G
3 PH 230V L1, L2, L3, N, G
3 PH 230V with Optional Transformer Kit L1, L2, L3, G
3 PH 460V/575V L1, L2, L3, G
DANGER
Always disconnect and lock out power before working on or around fan.

3. Installation
16 PNEG-163-08 Centrifugal Fan
Check this voltage before starting unit. If voltage is not within 105 VAC-125 VAC, check for proper
voltage on L2 or L3 and move to appropriate leg. If voltage is not acceptable, install a 1/4 KVA
step-down transformer.
NOTE: Grounded B and some open delta power supplies will require this transformer kit.
Final Check
Check to make sure all safety guards are in place and not damaged. Replace damaged parts.
Check to make sure all decals are visible and not damaged. Replace damaged decals.
Check to make sure all control boxes are closed and no wiring is exposed.
Test Run
When the fan is completely installed, the unit will need to be checked for proper rotation. Provide power
to the fan controls and start the fan momentarily. Make sure that the fan wheel rotation is in the direction
that the decal on the fan housing illustrates. If the decal is missing, note that the wheel should operate
counterclockwise when viewed through the inlet guard on standard construction fans. If the wheel is
rotating the wrong direction, have the electrician correct the wiring.
Figure 3A
CAUTION
The voltage between L1 and N must be 115 VAC. Any other voltage will cause
damage to equipment.

3. Installation
PNEG-163-08 Centrifugal Fan 17
Machine to Earth Ground
It is very important that a machine to earth ground rod be installed at the fan. This is true even if there is
a ground at the pole 15' away. This ground needs to be as close to the fan as possible, but no more than
8' away. The ground rod should be connected to the fan control panel with at least a #6 solid bare copper
ground wire, or in accordance with local requirements. The machine to earth ground provides additional
safety if there is a short. It also provides the grounding necessary for long life and operation of the solid
state circuit boards used on control circuits and the electronic ignition systems.
Previously Installed Units
It is recommended that previously installed units be checked to see that a machine to earth ground has
been installed by an electrician.
Ground Rod Installation
Proper Installation of the Ground Rod
(Ground rods and wires are not supplied.) It is recommended that the rod not be driven into dry ground.
The following steps ensure proper ground rod installation:
1. Dig a hole large enough to hold 1 to 2 gallons of water.
2. Fill hole with water.
3. Insert rod through water and jab it into the ground.
4. Continue jabbing the rod up and down, the water will work its way down the hole, making it
possible to work the rod completely into the ground. This method of installing the rod gives a
good conductive bond with the surrounding soil.
5. Connect the bare copper ground wire to the rod with the proper ground rod clamp.
6. Connect the bare ground wire to the fan control boxes with a grounding lug.
7. Ground wire must not have any breaks or splices. Insulated wire is not recommended for grounding.
Figure 3B
Dig a hole large enough to hold 1 or
2 gallons of water.
Work the ground rod into the earth
until it is completely in the ground.

18 PNEG-163-08 Centrifugal Fan
4. Fan Specifications
1750 RPM Fan Electrical Specifications
IMPORTANT: The values listed in this chart are recommendations only. Electrical installation must
be performed by a qualified electrician, in accordance with National and Local Electrical
Codes. Any violation of electrical wiring codes could jeopardize the warranty.
Fan Horsepower 3 5 7-1/2 10
Phase 13131313
Volts 230 230 460 575 230 230 460 575 230 230 460 575 230 230 460 575
Full Load Current (Amps) * 17 9.6 4.8 3.9 28 15.2 7.6 6.1 40 22 11 950 28 14 11
Minimum Wire Size Copper Wire Copper Wire Copper Wire Copper Wire
50' Run 12 14 14 14 10 14 14 14 810 14 14 610 14 14
100'Run 12141414 8 121414 8 101414 6 101414
200' Run 812 14 14 610 14 14 4 8 14 14 4 6 12 14
300' Run 6 10 14 14 4 8 14 14 3 6 12 14 2 4 10 12
Minimum Wire Size Aluminum Wire Aluminum Wire Aluminum Wire Aluminum Wire
50'Run 10121212 8 121212 6 101212 4 8 1212
100' Run 812 12 12 610 12 12 6 8 12 12 4 8 12 12
200' Run 6 10 12 12 4 8 12 12 3 6 12 12 2 4 10 12
300' Run 4 8 12 12 3 6 12 12 1 4 10 12 0 3 8 10
FuseSize(SlowBlow) 3015 8 6 502512107040201590452520
Breaker Size 50 15 15 15 70 30 15 15 100 40 20 15 125 50 30 20
* Based on NEC Tables 430-148 and 430-150
Fan Horsepower 15 20 25 30 40 50
Phase 1 3 3 3 3 3 3
Volts 230 230 460 575 230 460 575 230 460 575 230 460 575 230 460 575 230 460 575
Full Load Current (Amps) * 65 42 21 17 54 27 22 68 34 27 80 40 32 104 52 41 130 65 52
Minimum Wire Size Copper Wire Copper Wire Copper Wire Copper Wire Copper Wire Copper Wire
50' Run 4 6 10 12 410 10 4 8 10 3 8 8 1 6 6 00 4 6
100' Run 4 6 10 12 4 10 10 4 8 10 3 8 8 1 6 6 00 4 6
200' Run 3 4 10 12 410 10 3 8 10 3 8 8 1 6 6 00 4 6
300' Run 1 4 10 10 3 8 10 2 6 81680660046
Minimum Wire Size Aluminum Wire Aluminum Wire Aluminum Wire Aluminum Wire Aluminum Wire Aluminum Wire
50'Run 241010381026816800440000 2 4
100' Run 2 4 10 10 3 8 10 26816800 4 4 0000 2 4
200' Run 1 3 8 10 2 8 10 1 6 8068004 40000 2 4
300' Run 00 1 6 8 0 6 8 00 4 6 00 4 6 000 4 4 0000 2 4
Fuse Size (Slow Blow) 125 70 40 30 90 45 40 110 60 45 125 60 50 175 80 70 200 100 80
Breaker Size 175 70 40 30 90 50 40 110 60 50 125 60 50 175 80 70 200 100 80
* Based on NEC Tables 430-148 and 430-150

4. Fan Specifications
PNEG-163-08 Centrifugal Fan 19
3500 RPM Fan Electrical Specifications
IMPORTANT: The values listed in this chart are recommendations only. Electrical installation must be
performed by a qualified electrician, in accordance with National and Local Electrical
Codes. Any violation of electrical wiring codes could jeopardize the warranty.
Fan Horsepower 3 5 7-1/2 10
Phase 1 3 1 3 1 3 1 3
Volts 230 230 460 575 230 230 460 575 230 230 460 575 230 230 460 575
Full Load Current (Amps) * 17 9.6 4.8 3.9 28 15.2 7.6 6.1 40 22 11 950 28 14 11
Minimum Wire Size Copper Wire Copper Wire Copper Wire Copper Wire
50' Run 12 14 14 14 10 14 14 14 810 14 14 610 14 14
100' Run 12 14 14 14 8 12 14 14 8 10 14 14 6 10 14 14
200' Run 812 14 14 610 14 14 4 8 14 14 4 6 12 14
300' Run 6 10 14 14 4 8 14 14 3 6 12 14 2 4 10 12
Minimum Wire Size Aluminum Wire Aluminum Wire Aluminum Wire Aluminum Wire
50' Run 10 12 12 12 8 12 12 12 6 10 12 12 4 8 12 12
100' Run 812 12 12 610 12 12 6 8 12 12 4 8 12 12
200' Run 6 10 12 12 4 8 12 12 3 6 12 12 2 4 10 12
300' Run 4 8 12 12 3 6 12 12 1 4 10 12 0 3 8 10
FuseSize(SlowBlow) 30158 6 502512107040201590452520
Breaker Size 50 15 15 15 70 30 15 15 100 40 20 15 125 50 30 20
* Based on NEC Tables 430-148 and 430-150
Fan Horsepower 15 20 30 40 50
Phase 3 3 3 3 3
Volts 230 460 575 230 460 575 230 460 575 230 460 575 230 460 575
Full Load Current (Amps) * 42 21 17 54 27 22 80 40 32 104 52 41 130 65 52
Minimum Wire Size Copper Wire Copper Wire Copper Wire Copper Wire Copper Wire
50' Run 610 12 410 10 38816600 4 6
100' Run 6 10 12 4 10 10 3 8 8 1 6 6 00 4 6
200' Run 410 12 410 10 38816600 4 6
300' Run 4 10 10 3 8 10 1 6 8 0 6 6 00 4 6
Minimum Wire Size Aluminum Wire Aluminum Wire Aluminum Wire Aluminum Wire Aluminum Wire
50' Run 4 10 10 3 8 10 1 6 8 00 4 4 0000 2 4
100' Run 410 10 3 8 10 16800 4 4 0000 2 4
200' Run 3 8 10 2 8 10 0 6 8 00 4 4 0000 2 4
300' Run 16806800 4 6 000 4 4 0000 2 4
Fuse Size (Slow Blow) 70 40 30 90 45 40 125 60 50 175 80 70 200 100 80
Breaker Size 70 40 30 90 50 40 125 60 50 175 80 70 200 100 80
* Based on NEC Tables 430-148 and 430-150

4. Fan Specifications
20 PNEG-163-08 Centrifugal Fan
Fan Dimensions
Figure 4A
1750 RPM Fan Housing Dimensions
3500 RPM Fan Housing Dimensions
NOTE: All dimensions in inches to nearest 1/32".
NOTE: Add 8.125" to ‘A’ dimension for 3500 RPM fans with control boxes.
Fan ABCDEFGH I JKLMN
CF-3 44 37.875 25.094 15.313 30.813 23.593 13.5 32.094 15.688 28.813 15.313 19.656 24.875 26.125
CF-5 48.563 42 27.719 17.063 34.688 27.25 14.25 36.125 16.438 32.563 17.063 21.968 27.375 29.125
CF-7.5 48.563 42 27.719 17.063 38.438 27.25 18 36.125 20.188 36.313 17.063 21.968 27.375 29.125
CF-10 53 45.938 30.125 18.406 38.625 29.875 17.438 40.094 19.781 35.844 18.406 24.656 30 31.75
CF-15 53 45.938 30.125 18.406 40.063 29.875 18.875 40.094 21.219 37.281 18.406 24.656 30 31.75
CF-20 58.906 50.563 33.34 20.094 45.438 33.25 19.563 44.438 21.813 42.906 20.094 27.281 33.625 35.125
CF-25 58.906 50.563 33.34 20.094 47.75 33.25 21.875 44.438 24.063 45.125 20.094 27.281 33.625 35.125
CF-30 64.406 55.75 36.219 22.25 47.688 33.25 21.875 49.844 24.125 45.25 22.313 30.532 36.5 38.375
CF-40 64.406 55.75 36.219 22.25 49.5 33.25 23.688 49.844 25.938 47.063 22.313 30.532 36.5 38.375
CF-50 64.406 55.75 36.219 22.25 50.625 33.25 25.25 49.844 27.5 48.625 22.313 30.532 36.5 38.375
CF-30D - CF-50D 56.498 51.756 32.938 22.688 90.625 33.25 44 42.5 46.532 89.563 22.688 25.089 33.5 35.125
Fan ABCDEFGH I JKLMN
CHS-3 30.031 29.813 17.375 12.813 27.188 16.5 8.125 24.156 10.281 25.375 12.813 14.156 16.5 17.875
CHS-5 30.031 29.813 17.375 12.813 28.969 16.5 10 24.156 12.156 27.25 12.813 14.156 16.5 17.875
CHS-7.5 36.375 33.375 20.875 13.281 29.938 19 10 27.688 12.219 28.219 13.281 17.219 20.5 21.75
CHS-10 36.375 33.375 20.875 13.281 30.938 19 11 27.688 13.219 29.219 13.281 17.219 20.5 21.75
CHS-15 36.375 33.375 20.875 13.281 32.938 19 13 27.688 15.219 31.219 13.281 17.219 20.5 21.75
CHS-20 44 37.875 25.094 15.313 37.813 23.563 12.563 32.094 14.75 35.813 15.313 19.656 24.875 26.125
CHS-30 44 37.875 25.094 15.313 39.313 23.563 14.063 32.094 16.25 37.313 15.313 19.656 24.875 26.125
CHS-40 44 37.875 25.094 15.313 41.75 23.563 16.5 32.094 18.688 39.75 15.313 19.656 24.875 26.125
CHS-50 48.563 42 27.719 17.063 41.125 27.25 15.75 36.125 17.938 39 17.063 21.968 27.375 29.125