CSI 1750 RPM User manual

PNEG-2305
Aluminum Centrifugal Fan
Installation and Operation
Owner’s Manual
PNEG-2305
Version: 1.0
Date: 03-24-21

2PNEG-2305 Aluminum 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:
All information, illustrations, photos, and specifications in this manual are based on the latest
information available at the time of publication. The right is reserved to make changes at any
time without notice.

Table of Contents
PNEG-2305 Aluminum Centrifugal Fan 3
Contents
Chapter 1 Safety ..................................................................................................................................................... 5
Safety Guidelines .................................................................................................................................. 5
Cautionary Symbols Definitions ............................................................................................................ 6
Safety Cautions ..................................................................................................................................... 7
Safety Sign-Off Sheet ......................................................................................................................... 11
Chapter 2 Safety Decals ...................................................................................................................................... 12
Chapter 3 Installation .......................................................................................................................................... 15
Pre-Installation Requirements ............................................................................................................. 15
Fan Installation .................................................................................................................................... 16
Electrical Installation ........................................................................................................................... 16
Test Run .............................................................................................................................................. 17
Ground Rod Installation ...................................................................................................................... 18
Chapter 4 Fan Specifications .............................................................................................................................. 19
1750 RPM Fan Electrical Specifications ............................................................................................. 19
3500 RPM Fan Electrical Specifications ............................................................................................. 20
Fan Dimensions .................................................................................................................................. 21
Discharge Bolt Pattern Dimensions .................................................................................................... 22
Inlet Cone Dimensions ........................................................................................................................ 23
Fan Wheel Dimensions ....................................................................................................................... 24
Fan Pad Location ................................................................................................................................ 25
Chapter 5 Operation ............................................................................................................................................ 26
Fan Start-Up ........................................................................................................................................ 26
Fan Shut Down ................................................................................................................................... 26
Maintaining Grain Quality .................................................................................................................... 26
Grain Storage ...................................................................................................................................... 27
Chapter 6 User Servicing Instructions and Troubleshooting .......................................................................... 28
Fan Wheel Removal and Installation .................................................................................................. 28
Removing the Fan Wheel Assembly ................................................................................................... 28
Installing the Fan Wheel Assembly ..................................................................................................... 29
Fan Wheel Inspection and Maintenance ............................................................................................. 31
Taper-Lock Bushing Torque Requirements ........................................................................................ 32
Fan Motor Removal and Installation ................................................................................................... 32
General Inspection .............................................................................................................................. 32
Lubrication and Bearings .................................................................................................................... 33
Troubleshooting Charts ....................................................................................................................... 34
Chapter 7 Parts List ............................................................................................................................................. 37
Main Assembly - 1750 RPM Fans ....................................................................................................... 38
Main Assembly - 3500 RPM Fans ....................................................................................................... 43
Main Assembly - Double Inlet Fan ...................................................................................................... 48
Internal Bearing Arch Assembly - Double Inlet Fan ............................................................................ 49
Motor Drives - Double Inlet Fan .......................................................................................................... 50
Shaft Coupling ..................................................................................................................................... 51
Small Control Panel 1 Phase 230 Volt (CPS-230-1) ........................................................................... 52
Small Control Panel 3 Phase 230 Volt (CPS-230-3) ........................................................................... 54
Large Control Panel 3 Phase 230 Volt (CPL-230-3) ........................................................................... 56
Small Control Panel 3 Phase 380V, 460V and 575V (CPS-345-3) ..................................................... 58
Large Control Panel 3 Phase 460V and 575V (CPL-345-3) ............................................................... 60
Motor Conduit Assembly ..................................................................................................................... 62

Table of Contents
4PNEG-2305 Aluminum Centrifugal Fan
Chapter 8 Schematics/Wiring Diagrams ............................................................................................................ 68
Wiring Schematic - 230 Volt 1 Phase .................................................................................................. 68
Wiring Diagram (CHA-3-1C) ............................................................................................................... 70
Wiring Diagram (CFA-10-1C and CHA-10-1C) ................................................................................... 71
Wiring Diagram (CFA-15-1C) .............................................................................................................. 72
Wiring Diagram (CFA-5-1C, CFA-7.5-1C, CHA-5-1C and CHA-7.5-1C) ............................................. 73
Wiring Schematic - 230 Volt 3 Phase .................................................................................................. 74
Wiring Diagram - 230 Volt 3 Phase ..................................................................................................... 75
Wiring Schematic - 460 Volt 3 Phase .................................................................................................. 76
Wiring Diagram - 460 Volt 3 Phase ..................................................................................................... 77
Chapter 9 Appendix A ......................................................................................................................................... 78
Double Inlet Fans ................................................................................................................................ 78
Chapter 10 Warranty ............................................................................................................................................ 79

PNEG-2305 Aluminum Centrifugal Fan 5
1. Safety
Safety Guidelines
Safety guidelines are general-to-specific safety rules that must be followed at all times. This manual is
written to help you understand safe operating procedures and problems that can be encountered by the
operator and other personnel when using this equipment. Read and save these instructions.
As owner or operator, you are responsible for understanding the requirements, hazards, and precautions
that exist and to inform others as required. Unqualified persons must stay out of the work area at all times.
Alterations must not be made to the equipment. Alterations can produce dangerous situations resulting in
SERIOUS INJURY or DEATH.
This equipment must be installed in accordance with the current installation codes and applicable
regulations,whichmustbecarefullyfollowed in allcases.Authorities having jurisdictionmustbe consulted
before installations are made.
When necessary, you must consider the installation location relative to electrical, fuel and water utilities.
Personnel operating or working around equipment must 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.
ST-0001-4

1. Safety
6PNEG-2305 Aluminum Centrifugal Fan
Cautionary Symbols Definitions
Cautionary symbols appear in this manual and on product decals. The symbols alert the user of potential
safety hazards, prohibited activities and mandatory actions. To help you recognize this information, we
use the symbols that are defined below.
DANGER
WARNING
CAUTION
NOTICE
This symbol indicates an imminently hazardous situation
which, if not avoided, will result in serious injury or death.
This symbol indicates a potentially hazardous situation
which, if not avoided, can result in serious injury or death.
This symbol indicates a potentially hazardous situation which,
if not avoided, can result in minor or moderate injury.
This symbol is used to address practices not related to
personal injury.
This symbol indicates a general hazard.
This symbol indicates a prohibited activity.
This symbol indicates a mandatory action.
ST-0005-2

1. Safety
PNEG-2305 Aluminum Centrifugal Fan 7
Safety Cautions
Use Personal Protective Equipment
Eye
Protection
Hearing
Protection
Hand
Protection
Head
Protection
Respiratory
Protection Foot
Protection
Fall
Protection
• Use appropriate personal protective equipment:
• Wear clothing appropriate to the job.
• Remove all jewelry.
• Tie long hair up and back.
ST-0004-1
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.
• If you do not understand any part of this manual or
need assistance, contact your dealer.
ST-0002-1

1. Safety
8PNEG-2305 Aluminum Centrifugal Fan
Maintain Equipment and Work Area
• Understand service procedures before doing work. Keep area
clean and dry.
• Never service equipment while it is operating. Keep hands, feet,
and clothing away from moving parts.
• Keep your equipment in proper working condition. Replace worn
or broken parts immediately.
ST-0003-1
Keep Hands Away from Moving Parts
• Do not operate the fan with electrical or mechanical guards
removed. Serious injury or death can result.
• Do not put hand or arm in fan. Rotating parts can crush and
dismember.
• Do not put any kind of tool inside the fan to clear debris while
the fan is operating. Damage to the equipment will result.
• Lock-out power source before making adjustments, cleaning
or maintaining equipment.
ST-0020-2
Lifting Hazard
• Single person lift can cause injury.
• Use a mechanical lifting device to lift or move the equipment
during installation.
ST-0021-2
Install and Operate Electrical Equipment Properly
• Electrical controls must be installed by a qualified electrician and
must meet the standards set by applicable local codes (National
Electrical Code for the US, Canadian Electric Code, or EN60204
along with applicable European Directives for Europe).
• Lock-out power source before making adjustments, cleaning,
or maintaining equipment.
• Make sure all equipment and bins are properly grounded.
ST-0075-1

1. Safety
PNEG-2305 Aluminum Centrifugal Fan 9
Prevent Roof Damage Due to Vacuum Pressure
• Roof damage can result from excessive vacuum or internal
pressure from fans or other air moving systems. The manufacturer
does not warrant this type of roof damage.
• Adequate ventilation or “makeup air” devices must 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.
• Operating fans during high humidity or cold weather conditions can
cause air exhaust or intake ports to freeze.
ST-0028-2
Sharp Edge Hazard
• This product has sharp edges, which can cause serious injury.
• To avoid injury, handle sharp edges with caution and always use
proper protective clothing and equipment.
ST-0036-2

1. Safety
10 PNEG-2305 Aluminum Centrifugal Fan
Handle and Use Equipment Properly
• Equipment is intended for the use of grain drying only. Any
other use is a misuse of this equipment.
• The operating instructions in this manual pertain to the
common cereal grains as indicated. When drying any other
grain, contact GSI for additional recommendations.
• On LP fired units, set pressure regulator to avoid excessive
gas pressure applied to the burner during ignition and
operation. Do not exceed maximum recommended drying
temperatures.
• Equipment has sharp edges that can cause serious injury. To
avoid injury, handle sharp edges with caution and use proper
protective clothing and equipment at all times.
• All guards must be in place before and during operation.
Images of guards removed in this manual are for illustration
purposes only.
• Use caution when working around high-speed fans, gas
burners, augers and auxiliary conveyors which can start
automatically.
• Keep hands, feet and clothing away from moving parts.
• Do not bypass any safety device or interlock.
• Do not enter the dryer or bin while it is operating.
• Do not operate in an area where combustible material will be
drawn into the dryer. ST-0029-2

1. Safety
PNEG-2305 Aluminum Centrifugal Fan 11
Safety Sign-Off Sheet
Below is a sign-off sheet that canbe used to verify that all personnel have read and understood the safety
instructions. This sign-off sheet is provided for your convenience and personal record keeping.
Date Employee Name Supervisor Name
ST-0007

12 PNEG-2305 Aluminum 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.
Location Decal # Decals Description
Located on the fan
inlet cone DC-219 Decal, Red Rotation
Located on the fan
housing motor side DC-1544 Decal, Important Maximum Speed
Located on the fan
coupling guard on the
motor driven fans DC-1749 Decal, Warning
Rotating Shaft
Located on the fan
housing side above
the motor and located
on the outside of the
control box lid
DC-1943 Decal, DangerHigh Voltage, CE, CSA
Harmonized
Operation above maximum speed will
structurally damage fan blade and void
warranty.
Do not operate fan above maximum speed.
Maximum speed: 1750 RPM
IMPORTANT
DC-1544
Do not operate with
guard removed.
Lockout/tagout
before servicing.
DC-1749
WARNING
ã1994H CS , Inc.
ROTATING SHAFT.
GSI Group 217-226-4421
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

2. Safety Decals
PNEG-2305 Aluminum Centrifugal Fan 13
Located on the inside
of the control box DC-1948
Decal, Danger
High Voltage (LG),
CE, CSA
Harmonized
Located on the fan
housing side
near the fan inlet DC-1949 Decal, Warning
RotatingBlade,CE,
CSA Harmonized
Located on the
painted inlet cone of
the fan housing DC-1971 Decal, Air Flow,
CE, CSA
Harmonized
Located on the fan
housing motor side DC-2111 Decal, Notice - Owners Manual
Location Decal # Decals Description
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
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
AIRFLOW
AIRFLOW
CIRCULATION D’AIR
CIRCULATION D’AIR
DC-1971
NOTICE
NOTICE
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.
AVIS
AVIS
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.

2. Safety Decals
14 PNEG-2305 Aluminum Centrifugal Fan
Roof Damage Warning and Disclaimer
The manufacturer does not warrant any roof damage caused by excessive vacuum or internal
pressure from fans orother 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

PNEG-2305 Aluminum Centrifugal Fan 15
3. Installation
Pre-Installation Requirements
Foundation
Use the dimension illustration in the specifications section on Page 21 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 25 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 rectangular opening 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 14.
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 19 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 19 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
16 PNEG-2305 Aluminum Centrifugal Fan
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 re-tighten.
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 the 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 the 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 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 the
supply and the fan horsepower. (See tables in specification section on Page 19.)
3. Verify that the safety disconnect is installed and sized correctly for the fan size. (See tables in
specification section on Page 19.)
4. Install a machine to earth ground for each individual fan. Refer to the ground rod installation
on Page 18.
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
Always disconnect and lock out power before working on or around fan.

3. Installation
PNEG-2305 Aluminum Centrifugal Fan 17
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 the standard construction fans. If the wheel is
rotating the wrong direction, have the electrician correct the wiring.
Figure 3A
The voltage between L1 and N must be 115 VAC. Any other voltage will cause
damage to the equipment.

3. Installation
18 PNEG-2305 Aluminum Centrifugal Fan
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 the 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.

PNEG-2305 Aluminum Centrifugal Fan 19
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 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 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 8 1 6 8 0 6 6 00 4 6
Minimum Wire Size Aluminum Wire Aluminum Wire Aluminum Wire Aluminum Wire Aluminum Wire Aluminum Wire
50' Run 2 4 10 10 3 8 10 2 6 8 1 6 8 00 4 4 0000 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 8 0 6 8 00 4 4 0000 2 4
300' Run 00 16806800 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
20 PNEG-2305 Aluminum Centrifugal Fan
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 61012410103881660046
200' Run 410 12 410 10 38816600 4 6
300'Run 4101038101680660046
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