Neco HSCB2225D36C Installation and operating instructions

Centrifugal Fan
Assembly and Operations Manual
Part Number: 040715 R01
Revised: 2018-06-05
INSTALLATION AND WIRING MUST
BE IN ACCORDANCE WITH CEC,
NEC, AND LOCAL ELECTRICAL
CODES
Read this manual before using product. Failure to
follow instrucƟons and safety precauƟons can
result in serious injury, death, or property
damage. Keep manual for future reference.
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2
NECO Overview ---
Since 1959, NECO equipment has been proudly designed, manufactured, and supported for
customers here in the USA and around the world. With proper operation and maintenance,
the equipment will provide years of safe and dependable service. NECO is continually testing
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economical grain handling & grain conditioning equipment available. We welcome your questions
or comments and look forward to a continued relationship, ultimately saving you valuable time and
reducing your workload.
About this manual ---
This manual is provided to help ensure the safety of the equipment
operator, as well as others who come into contact with the equipment.
READ AND SAVE THESE INSTRUCTIONS!
Failure to read, understand, and follow the instructions within
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personnel safety and the product warranty.
Additional copies can be viewed or printed from the NECO
website www.necoGU\HUV.com or contact your local dealer for
assistance.
Language translations of this manual are made as accurately as
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prevail.
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and
UNDERSTAND
Watch for this symbol - it means DANGER or CAUTION !!
Be alert to the possibility of serious injury or death.
This symbol is used to call your attention to
instructions concerning personal safety.
It is your responsibility as an owner, operator,
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to make this information known to all persons
working with the equipment or who are in the
area.
Become Alert !!
Product Changes & Improvements ---
NECO reserves the right to make changes or improvements to its products
without incurring any obligation with respect to previously manufactured products.

3
TABLE OF CONTENTS
***** LIMITED WARRANTY *****.................................................4
1. SAFETY .......................................................................5
2. WARNING LABELS...................................................14
Warning Label Identification ....................................................14
Label Locations.........................................................................16
3. EQUIPMENT OVERVIEW.........................................17
General Design Criteria.............................................................17
Installation Planning .................................................................18
Electrical Planning ....................................................................19
Model Number Key, Low Speed Centrifugal Fans..................20
Model Number Key, High Speed Centrifugal Fans.................21
4. INSTALLATION.........................................................22
Mounting ....................................................................................22
Location......................................................................................22
Position & Cut Bin Opening .....................................................22
Caulk and Secure Transition....................................................22
Assembly....................................................................................22
Power Hookup ...........................................................................24
(Optional) NECO Supplied Fan Control Wiring Schematics..27
5. OPERATION ..............................................................32
Pre-Start Instructions................................................................32
Normal Operation......................................................................32
6. MAINTENANCE.........................................................33
7. APPENDIX ................................................................34
Troubleshooting Section ..........................................................34

4
For a period of one(1) year after shipment of goods by the Buyer to the
Buyer’s customer, NECO will supply, free of charge, FOB per NECO’s factory
located in Omaha, Nebraska, replacement parts for any parts that NECO
identifies to be defective due to workmanship or material.
• This limited warranty does not extend to parts that wear due to normal operation and
need to be replaced periodically.
• Goods not manufactured by NECO carry only their manufacturer’s warranty.
• This undertaking is in lieu of all other warranties, expressed or implied, including
merchantability and fitness for a particular purpose.
• You must obtain a “Return Authority” form from NECO prior to returning any defective
goods. Those defective goods must be returned, freight-prepaid, to the NECO factory in
Omaha, Nebraska. See the back cover of this manual for complete address information.
• NECO reserves the right to make changes or improvements to products and goods
without incurring any obligation with respect to previously manufactured products.
• Failure to follow the instructions contained in this manual, as well as the existence of
any of the conditions listed below, will cause this Limited Warranty to be null and void:
1. Improper assembly.
2. Improper installation, including power and wiring.
3. Unauthorized alteration of the product or components therein.
4. Operation of the unit when repairs are needed.
5. Use of unauthorized parts.
6. Operation by children or uninstructed personnel.
7. Processing of materials that are abrasive, that do not flow freely,
or that are otherwise unsuited for processing in farm equipment.
8. Misuse of the equipment or any of its components.
9. Damage due to negligence, abuse, or accidents.
LIMITATION OF LIABILITY
• Buyer agrees that in no event shall NECO have liability for direct damages in excess of
the contract price of the goods for which the claim is made.
• Buyer further agrees that in no event shall NECO have liability for loss of use, loss of
profits, or for any indirect, incidental, or consequential damages on any claim of any
kind.
***** LIMITED WARRANTY *****

5
1. SAFETY
General Safety
General safety includes instructions that apply
to all safety practices. Further safety messages
are included throughout this manual. Always
read this complete manual and not just the
safety summaries before you do anything with
this equipment.
YOU are responsible for the SAFE use and
maintenance of your equipment. YOU must
make certain you and anyone else who
works around the equipment understands all
procedures and related SAFETY information
contained in this manual.
Remember, YOU are the key to safety. Good
safety practices not only protect you, but also
the people around you. Make safety practices a
working part of your safety program. Following
are listed a small number of basic common
safety practices:
• It is the equipment owner and the operator’s
responsibility to read and understand ALL
safety instructions, safety decals, and manuals
and follow them before assembling, operating,
or maintaining the equipment. All accidents can
be avoided.
• Equipment owners must give instructions and
review the information initially and annually
with all personnel before allowing them to
operate this product. Untrained users/operators
expose themselves and bystanders to possible
serious injury or death.
•
Use this equipment for intended purposes only.
• Do not modify the equipment in any way.
Unauthorized modification may impair function
and/or safety, and could affect equipment
life-span. Any modification of this equipment
voids the warranty.
• Have a first-aid kit available for use should
the need arise, and know how to use it.
• Provide a fire extinguisher for use in case of
an accident. Store it in a highly visible place.
• For powered equipment: before servicing,
adjusting, or repairing powered equipment,
unplug, remove ignition key or lock out the power
source, and wait for all moving parts to stop.
• Make certain outlets and tools are properly
grounded.
• Use adequate light for the job at hand.
• Think SAFETY! Work SAFELY!
WARNING!
ALL INFORMATION ON THIS PAGE IS
WARNING INFORMATION!
OSHA, ANSI, NIOSH
You may obtain further relevant safety
information for the safe operation, construction,
and use of all equipment in this manual and all
other equipment described in this manual from
OSHA, ANSI, and NIOSH:
www.osha.gov
1-800-321-OSHA
www.ansi.org
www.cdc.gov/niosh
1-800-232-4636 (cdc info, NIOSH)

6
WORK AREA SAFETY STATEMENT
Under no circumstances should persons
not involved in the operation be allowed to
trespass into or be present in the work area.
It is the duty of all operators to make certain
children and/or other persons stay out of the work
area! Trespass into the work area by anyone not
involved in the actual operations, or trespass
into a hazard area by anyone, shall result in an
immediate shut down by the operator until all
such persons are safely out of these areas.
It is the responsibility of all operators to make
certain the work area has secure footing and
is clean and free of all debris and tools which
might cause accidental tripping and/or falling.
It is their responsibility to KEEP THE WORK
A
REA CLEAN and orderly during operation. It is
the operator’s responsibility to have damaged
equipment repaired and to make certain all
equipment is made free of sharp edges.
WARNING!
ALL INFORMATION ON THIS PAGE IS
WARNING INFORMATION!
OSHA
OCCUPATIONAL SAFETY AND HEALTH
ACT OF 1970
Certain purchasers of our products may be
subject to the requirements and standards of
the William-Steiger Occupational Safety and
Health Act of 1970, which prescribes standards
for use of appurtenances of our manufacture,
such as handrails, platforms, stairways,
fixed ladders, ladder cages, and guard rails.
(Occupational Safety and Health Standards
Section 1910.21 through 1910.32). Before
installing these devices, familiarize yourself
with the above Federal Standards.
A
t the time of manufacture, these optional
items conform to applicable standards.
OPERATOR QUALIFICATIONS
Operation of this unit shall be limited to
competent and experienced persons. Aperson
who has not read and understood all operating
and safety instructions is not qualified to
operate the machine. Also, In order to be
qualified, the operator must also know and
meet all other requirements, such as, but not
limited to, the following:
1The owner / operator must know the
national, state, and local regulations.
Some laws and regulations specify that
no one under the age of 16 years may
operate power machinery including
farm equipment.
2Current OSHA regulations state in part:
“At the time of initial assignment and at
least annually thereafter, the employer
shall instruct every employee in the safe
operation and servicing of all equipment
with which the employee is, or will be
involved.”*
3Anyone operating or working around
power equipment must understand
and meet all legal and contractual
requirements. Unqualified persons are
to STAY OUT of the work area.
4
Know and use proper LOCKOUT/
TAGOUT procedures and know the
emergency shut-off locations and any and
all utilities connected to the equipment.
* Federal Occupational Safety and Health Standards for
Agriculture, Subpart D. Section 9128.57 (a) (6).
SAFETY COMPLIANCE
It is your responsibility as an owner or operator
or supervisor, to know what specific applicable
safety regulations, requirements, precautions,
and work hazards exist and to make these
known to all other personnel working with the
equipment or in the area, so they too may take
any necessary required safety precautions.
Always adhere to all safety laws pertaining to
the construction and use of this installation.

7
Power Lockout
It is essential to inspect your fan and heater
before turning on the power. Know how to shut
down the fan and heater power in an emergency!
Before adjusting or servicing the equipment,
make certain to shut down the power and lock it
out at your power source.
1) Electric motors and controls shall be installed
by a qualified electrician. Installation must meet
standards set by the National Electric Code and
all state and local codes.
2) Always disconnect and lock out power before
servicing the fan or heater.
3) You must disconnect the power before
resetting the motor.
4) Reset and motor-starting controls must be
located where the operator has a full view of the
entire operation.
5) Always keep children away from the unit!
6) Make certain all fan guards, guards, and
shields are reinstalled after servicing and kept in
place.
A main power disconnect switch capable of
being locked only in the OFF position shall be
installed. This shall be locked out whenever work
is performed on the equipment.
The owner and/or management needs to look
for maintenance or other personnel working
on the equipment without following a proper
lockout procedure. It is the responsibility of
everyone to report any missing grates, guards,
equipment failures, or failures to lockout.
Make certain no cover is removed unless
power is locked out.
WARNING!
ALL INFORMATION ON THIS PAGE IS
WARNING INFORMATION! Equipment Inspection
After fan/heater delivery and/or assembly
completion, before each use, and at the end
of the season. Inspecting this equipment is
mandatory!
1) SHUT OFF, LOCKOUT, AND TAGOUT all
power sources to the equipment before any
inspection, service, or maintenance.
2) Check to see all guards listed in the
assembly instructions are secured in place and
are functional.
3) Check all fasteners are tight.
4) Before starting the fan, make certain the fan
interior is clear of any debris.
5) Make certain the fan impeller rotates freely.
6) Open the roof vents/roof ventilation openings
before use.
7) Inspect all electrical and gas connections.
Check for leaks with soapy water.
8) Make certain all safety decals are in place,
clean, and readable.
9) Before starting the heater read the startup
procedures.
WARNING!
Always shut off power, disconnect power,
and lockout power before: inspection,
adjustment, installation, installing wires
or cables, performing maintenance, or
working on or around the fan and/or
heater. Lock out the power at the power
source and shut off all gas valves on the
heater and fuel tank.

8
Signal Words
The signal words below are used to call your
attention to a safety message. These words
are often used with the safety alert symbol
(however the meaning of these signal words is
unchanged even when the safety alert symbol
is not present next to the signal word).
Each of these signal words indicate a degree
or level of hazard seriousness. Specifically
these words indicate the probability and
severity of harm associated with not following
the safety message. The signal definitions for
these words are as follows:
WARNING!
ALL INFORMATION ON THIS PAGE IS
WARNING INFORMATION!
NOTICE
WARNING!
DANGER!
CAUTION!
indicates a hazardous situation which, if not
avoided will result in death or serious injury.
indicates a hazardous situation which, if not
avoided could result in death or serious injury.
indicates a hazardous situation which, if not
avoided could result in a minor or moderate injury.
indicates an important message not related to
personal injury. Also the signal word CAUTION
without the safety alert symbol may also be
used to indicate a message not related to
personal injury.
Wear Personal Protective
Equipment (PPE)
See OSHA PPE Regulations. Use OSHA
Personal Protective Equipment wherever
necessary such as:
HARD HAT
RESPIRATOR
EYE
PROTECTION
FALL PROTECTION
STEEL TOE BOOTS
HAND
PROTECTION
EAR
PROTECTION
CONFINED
SPACE EQUIPMENT

9
WARNING!
ALL INFORMATION ON THIS PAGE IS
WARNING INFORMATION!
Operating Procedures
• Safely follow all operating procedures outlined
within this manual.
• Before startup, make certain all safety shields
are in place.
• NEVER leave equipment running without a
qualified operator present.
• Inspect the equipment periodically and be
alert for unusual noises or vibrations.
WARNING!
Install all equipment in compliance with
ANSI and NFPA standards!
Drives and Lockouts
• Make certain the power disconnect can be
locked in the OFF position. This disconnect
switch must be lock whenever work is being
performed on the equipment.
• Inspect all power drives before adding power.
Chains, belts, etc. should have proper tension
or be adjusted before running.
• Electric motors and controls must be installed
by a qualified electrician. They must meet the
standards set by the NFPA Std 70 of the National
Electric Code and all local and state codes.
• Disconnect power before resetting motor
overloads.
Bin Safety
• Never enter a bin without being monitored by
another person.
• Do not enter the grain bin unless all power to
the equipment has been SHUT OFF, LOCKED
OUT and TAGGED OUT.
• Use a safety harness and life line when inside
the bin.
• Avoid walking on grain near the grain outlets.
Flowing grain can trap and suffocate.
• Do not enter the bin if the grain has not
flowed out of the bin normally. Moisture
in the bin can cause grain to form steep,
unstable inclines or bridges as shown in the
examples below.
Crusted Grain Forming Steep Inclines
Crusted Grain Forming a Bridge

10
WARNING!
ALL INFORMATION ON THIS PAGE IS
WARNING INFORMATION!
- - Necessary Air Flow - -
• If the Roof Exhauster fans draw MORE air out
of the bin than aeration fans are pushing in, the
roof and walls of the bin could collapse.
• Grain bin Roof Exhauster fans must
operate ONLY when the bin aeration fans are
operating. Make certain Roof Exhausters are
electrically interlocked with aeration fans to
prevent the possibility of Roof Exhauster fans
operating independently.
• Make certain aeration fans ALWAYS push
more air into the bin than Roof Exhauster fans
are pulling out. (Any excess air will flow out
through the non-powered vents.)
REFERENCE: A minimum opening of 1 square
foot [0.09 square meters] is required for each
1000 CFM [28 CMM] of air blown into the bin.
CAUTION!
All electrical service must be installed
by a certified electrician per the
“National Electric Code” (NEC). All
wiring and electrical service must be
performed in accordance with both local
and national codes.
WARNING!
Label all wires before disconnection when
servicing controls. Wiring errors may
cause improper and dangerous operation.
A functional checkout of a replacement
control should always be performed.
WARNING!
This product uses voltages of shock
hazard potential. Wiring and initial
operation must be performed by a
qualified service technician.
ANSI and NFPA Standards
• Install all equipment in compliance with ANSI
AND NFPA Standards.
(ANSI: American National Standards Institute
NFPA: National Fire ProtectionAssociation)
Proper Grounding
Have a qualified electrician properly ground the
fan. A proper ground is necessary for protection
against electrical shock and lightning strikes.
The use of a ground fault circuit interrupter
GFCI is suggested on all outside electrical
wiring to reduce the potential for electric shock.
Shock Hazard
See the wiring diagrams in this manual.

11
AVOID STRUCTURAL DAMAGE!
• Make certain all roof vents are open and unobstructed.
• Make certain there is adequate ventilation. We recommend a minimum of 1 square foot
[929 cm
2
] of vent area per every 1,000 cfm [21 m
3
/min] fan air input.
• Make certain all fans are installed for positive pressure aeration (push system).
• Roof exhausters should be interlocked with aeration fans so roof exhausters can run only
when the aeration fans are running.
• Never operate your bin aeration system when icing of the roof vent is possible. Roof vent
icing can occur when the ambient air temperature is below 35°F [2°C] and the relative
humidity of the air is 90% or greater. Check with your local weather bureau.
Setup and Operate Fans Correctly
WARNING!
Be extremely careful of the high voltage
produced by the ignition unit!
CAUTION!
When using multiple fans in one bin
you must prevent reverse rotation
of idle fans or the fan motors may
be damaged. Reverse rotation can
be prevented by making certain fans
start-up simultaneously or by employing
shutters that shield blades from moving
air. Contact your NECO dealer for the
appropriate size shutter.
WARNING!
NECO cannot warrant any ROOF
DAMAGES due to internal pressure
or excessive vacuum caused by fans.
Adequate “makeup” air or ventilation
should be provided for all powered
air handling units! NECO does not
recommend the use of downward flow
(suction) systems. Severe roof and bin
structural damage can result from air
passage or blockage! Also running fans
during certain cold weather/high humidity
conditions can cause air exhaust or intake
ports to partly or completely freeze over!
WARNING!
Insufficient air exhaust area may result in
damage to the grain bin!

12
WARNING!
Failure to observe the above safety
instructions can result in injury or death!!
Specific HEATER Hazards
AVOID FIRE, EXPLOSION, AND ASPHYXIATION HAZARDS!
NECO Heaters are designed for drying crop output in grain bins. They provide heated air
via grain bin plenums (found underneath full-floor bins) or via in-floor ductwork.
Consult the NECO factory before attempting to use heaters for EZEE DRY applications.
• Never use NECO heaters to heat buildings, sheds, barns, etc. because of hazards
posed by the flame and by the output of carbon monoxide.
• Never install or use NECO heaters where a high concentration of grain dust or
flammable liquids or vapors exists because explosions could result. A common
grain bin filled with grain such as shelled corn, beans, or wheat is not considered an
explosive (volatile) environment. A metal or concrete silo filled with finely milled grain
dust, however, does constitute an explosive environment.
• Never allow anyone to enter the grain bin when a fan and heater is operating!
Gasses given off by the burner (including carbon monoxide and carbon dioxide could
cause death.
When installing the heater make certain the plenum area is clean of any flammable debris
especially within 10 ft of the heater transition entrance. Good housekeeping is essential to
prevent bin fires.
Before loading the bin with grain, make certain the plenum floor ductwork is not damaged
or plugged. Also, check the operation of the aeration fan to make certain the roof vents
are unobstructed.
i
IMPORTANT NOTE: Service personnel shall
perform a gas leak check during heater start-up, to
verify gastightness.
WARNING!
kas000-0_2011-11-15
Ventilate, purge all contaminates, and
allow burner, and drying areas to cool
inside the heater, in the heater area and
the grain bin before any persons enter
these areas! Avoid all burn hazards!

13
WARNING!
Equipment misuse could start a fire!
Drying Precautions - Grain Bin Fire
WARNING!
Grain fires can cause serious injury
or death.
HOW TO PREVENT IN-BIN FIRES
Take the following steps to help prevent fires.
1) Make certain the maximum plenum
temperature doesn’t rise more than 15 ° F [8 ° C]
higher than the ambient (outside) air. This will
help prevent fires and maintain grain quality.
2) Do not combine drying equipment from
different companies. NECO heaters are designed
to be used with NECO fans only. Safety features
built into one company’s units may not be properly
triggered when attempting to interface with
another company’s unit.
3) Fines are a huge fire hazard. Keep all areas
(including areas under the perforated floors) free
from fines.
4) Screen grain before it goes into a bin. This will
help prevent fines buildup. Using a grain spreader
will help distribute fines.
5) Make certain floor supports don’t block
transitions.
6) Use the dryer fan to ventilate the bins before
igniting the heater. This will reduce the risk of a
fire or explosion from leaking fuel.
7) Make certain a qualified electrician wires the
components. Improper wiring can cause fires.
If you believe a fire has started, follow these
safety procedures.
1) Account for the safety of anyone who’s been in
the vicinity.
2) Shut off gas at the heater and supply tank.
Shut off the fan. Call the Fire Department.
3) Seal the fan inlet and any other opening to
smother the fire.
4) Remove the fan and heater from the transition.
Sandbag the transition opening. Flood the bottom
of the bin with water up to about 4” [100 mm]
above the perforated floor. This will protect the
floor supports and may help extinguish the fire.
5) Direct water toward the source of the fire. If
a fire is in the upper portions of the dryer, insert
a long pipe with small holes into the grain and
deliver water to the source of the fire. Doing
so may help confine the fire--but extinguishing
a grain bin fire with water is unlikely to occur.
Emptying the bin is almost always necessary.
6) Take note of neighboring structures and could
them down if necessary.
7) Make certain fuel tanks are cool. Cool them if
necessary.
WARNING!
• Remove all grain from the bin to reach
the fire!
• Never enter a bin that’s on fire!
• Do not cut holes in the bin to remove
the grain when there’s a fire!
• Stay clear of flowing grain -
- it can bury
a person!
• Grain smolders for days! Do not restart
the fan until after all grain has been
removed from the fire area, the dryer
and the bin!

14
2. WARNING LABELS
Warning Label Overview
• Occupational safety is one of NECO’s primary concerns. Warning labels that conform to
industry standards are provided to identify potential safety hazards that could cause harm
and to INCREASE YOUR AWARENESS OF THE HAZARD.
• It is the Owners & Operators responsibility to ensure that all instructions identified
by warning labels are followed - including any suggested use of personal protective
equipment (PPE).
• This following warning label information identifies:
1. Potential hazards that are identified by a warning label.
2. Warning label header or identification.
3. The NECO part number for that warning label.
4. The location of that warning label.
5. What that warning label looks like - note that label pictorials are not shown full size.
• If the warning labels are missing or become unreadable in any way, use the following
information to determine the required part number and contact NECO Customer Service
at 402-453-6912 or toll free at 800-367-6208 for replacements.
• Replacement Warning Labels will be sent to you FREE OF CHARGE.
• Surfaces must be free of oils, dirt and moisture before applying replacement warning
labels.
Warning Label Identification
LABEL ID WARNING LABEL HEADER NECO P/N QTY LOCATION
A CAUTION 082056 1 On Fan Housing Drive Side
B CSA/ UL LABEL 084789 1 On Fan Housing above Motor
C CAUTION- CAPACITORS 043127 1 On Fan Housing above Motor
D WARNING- HIGH VOLTAGE 035691 1 On Control Box Lid (Outside)
E DANGER- HIGH VOLTAGE 036725 1 On Control Box Lid (Inside)
LOCATED ON FANS WITH SINGLE PHASE MOTORS ONLY
LOCATED ON FANS WITH OPTIONAL CONTROL BOX

15
CAUTION
Read and understand operator’s manual
before starting this unit.
All safety guards must be secured in
place before starting unit.
Stop unit and lock out power to adjust,
service or clean.
A minium of (1) square foot opening for
each 1000 CFM of air input is required.
Operator must be sure that roof exhaust
openings are not constricted due to chaff, ice
or other materials during operation.
Warranty maybe VOID if fan is not installed
per the following.
1. Fan must be installed level.
2. Fan must be securely mounted on a solid
concrete slab (min. 6” thk.) unless hung
by cables.
3. To avoid slab frost heave (which can cause
vibration), place pilings under slab to reach
maximum frost depth in your area.
P/N: 082056
INSUFFICIENT AIR EXHAUST AREA
MAY RESULT IN BIN DAMAGE!
INSTALLATION NOTES:
LABEL "A" -- INCLUDED ON ALL FAN MODELS.
LABEL "B" -- INCLUDED ON ALL CSA FAN MODELS.
Label ID "A" Label ID "B"
LABEL "C" -- INCLUDED ON ALL FANS WITH SINGLE PHASE MOTORS ONLY.
Label ID "D" Label ID "E"
LABELS "D" THRU "E" -- INCLUDED ON ALL FAN MODELS WITH CONTROLS
Label ID "C"

16
Label Locations
ON SINGLE PHASE ONLY
OPTIONAL
CONTROL BOX
INNER LID:
"E"
"D"
SCHEMATIC
OPTIONAL
CONTROL BOX
"A"
"C"
SHIPPING
LABEL
(FRONT & BACK
OF FAN)
NAMEPLATE
CSA/ UL LABEL "B"
"C"

17
3. EQUIPMENT OVERVIEW
General Design Criteria
Typical In-Bin Drying Components
When using multiple fans in one bin you must prevent reverse rotation of idle fans or the fan
motors may be damaged. Reverse rotation can be prevented by ensuring simultaneous start-up of
the fans or by employing shutters that shield idle fan wheels from moving air. Contact your NECO
dealer for the appropriate size shutter.
Centrifugal Fan
Heater
Transition
Fan Pad
Grain Bin Pad
Grain Bin
Cutaway
Aeration Floor
Powered
Roof Exhauster
Roof Vent

18
Installation Planning
As shipped, the fan is basically a complete and ready to operate unit. The following installation
functions will need to be completed :
TRANSITIONING
The fan must be attached to the bin wall beneath the drying floor through a transition and entrance
collar arrangement. Transitions are available from NECO although other designs can be used. Be
sure that there is minimum air leakage in the fan-transition arrangement to preserve airflow to the
grain bed. The transition should provide the same OR GREATER cross sectional area at the outlet
in order to prevent air flow loss.
MOUNTING NEEDS TO BE SECURE, LEVEL, AND VIBRATION FREE
A mounting pad or hanging type installation is possible for this unit. Either case requires that
the entire system be mounted level. In hanging installations, it is highly recommended that fans
be placed on a hung platform and secured. These type of installations must also be restrained
from any swaying. A swaying and/or out-of-level fan will vibrate and experience unusual noise,
premature motor bearing wear, and wheel damage.
MOUNTING PAD INSTALLATION
When mounting on a pad it is very important that the pad is a solid surface - typically, a poured
concrete slab is one of the most common methods of installation. The pad itself must be a
minimum 6" [152] thick, minimum 3000psi concrete and preferably reinforced with steel mesh or
rebar. To avoid frost heave (which can cause vibration), place pilings under the pad to reach the
maximum frost depth in your area. Contact your county extension agent for information concerning
maximum frost depth.

19
WARNING - TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK,
OR INJURY TO PERSONS, OBSERVE THE FOLLOWING:
Installation work and electrical wiring must be done by qualified person(s) in accordance
with all applicable codes and standards including fire rated construction.
Electrical Planning
The customer is responsible for supplying materials and labor to install the following:
1. A properly-sized lock-out type disconnect box with fuse or breaker protection for EACH fan &
add-on heater.
2. Properly-sized service line.
3. Proper grounding protection.
4. (OPTIONAL) If a heater is used in conjunction with the fan, the heater MUST be wired into
the fan contactor so that an interlock will prevent the heater from operating without the fan ON.
The heater must NEVER be wired into a separate power feed !!

20
04CH A101 C
I II III IV V
Reference
Number Category Character Description
ICentrifugal Fan
Type 04CH Low Speed Centrifugal (10-60HP)
II Type of Controls A Basic Fan without Starter
S Fan with Starter Controls
III Fan Horsepower
03
Horsepower of Motor
05
07
10
15
20
25
30
40
50
60
IV Fuel Control
Type
1 230V Single-Phase
3-230V 3-Phase with controls -230/460V 3-Phase without control
-380V 3-Phase if followed by "-50"
A 460V 3-Phase with controls
5 575V 3 Phase
V Certified C CSA/UL Certified
-50 CE Certified
The following 2-table-key offers a Low Speed Centrifugal
Fan model number description and can be used to
decipher the model number of a low speed unit.
For example, using the model numbering system below
the model number for a CSA /UL Certified Low Speed
Centrifugal Fan without a starter and with a 230V 10HP
Single-Phase motor would be.
Model Number Key, Low Speed Centrifugal Fans