Cincinnati Fan CPF Guide

OMM-11-0211-page 1
Installation, Safety, Operation & Maintenance Instructions And Parts List
For Models CPF and CPAF
Arrangement 9 Blowers.
All Cincinnati Fan products are packaged to minimize any damage during shipment. The freight carrier is responsible
for delivering all items in their original condition as received from Cincinnati Fan. The individual receiving this equipment
is responsible for inspecting this unit for any obvious or concealed damage. If any damage is found, it should be noted
on the bill of lading before the freight is accepted and the receiver must file a claim with the freight carrier.
ATTENTION: RECEIVING DEPARTMENT
LONG TERM STORAGE NOTICE
If this blower will NOT be installed and put into operation within 30 days, refer to the “Long Term Storage
Instructions” on page 15. Failure to follow all applicable long term storage instructions, will void your warranty.
This blower should be stored indoors in a clean, dry location.
BLOWER SERIAL NUMBER: ________________________ MFG. DATE: ____________________
NOTE: The serial number above is a required reference for any assistance. It is stamped on the blower nameplate.
BLOWER SPECIFICATIONS:
Model: ________ Arrangement: ________ Rotation: ________
Wheel Size and Type: ___________________
BLOWER PERFORMANCE DATA: (If entered on order)
CFM: ________ SP: ________ (Inches of Water Gauge) Motor BHP: ________
Density: ________ Altitude: ________ (Ft. above S. .) Airstream Temperature: ________°F.
Fan RPM: ________ Maximum Safe Fan RPM: ____________ DO NOT EXCEED THIS RPM
MOTOR DATA: (This section is completed only if the motor was supplied by Cincinnati Fan)
HP: __________ RPM: ____________ Voltage: ______________________________ Phase:________
Hz: ___________ Frame Size: ___________ Enclosure: ____________ Efficiency: ____________
IF Motor is EXP, Class(es) & Group(s) are:_________________________
Manufacturers Model Number: ___________________________ CFV Part Number: ___________
DRIVE DATA:
Fan Sheave: ______________ Motor Sheave: _______________ Belts: ______________
No. of Grooves: ___________ Fixed Speed: ■■Adjustable Speed: ■■
BLOWER SPECIFICATIONS
READ ENTIRE MANUAL, INCLUDING “SECTION IV. INITIAL UNIT STARTUP” BEFORE
ATTEMPTING TO INSTALL AND OPERATE THIS EQUIPMENT.
NOTE
Form: OMM-11-0211
Effective: 2/21/11
Supersedes: OMM-11-0509
Part No.: 01226

DANGER
OMM-11-0211-page 2
TABLE OF CONTENTS
Hazardous voltage High speed rotating ock out/Tag out to Avoid injury. NEVER Avoid injury. You MUST
can cause electrical equipment can cause prevent personal injury operate without A read and understand all
shock and death. severe personal injury. BEFORE starting ANY required safety instructions in this manual
service or inspection. guards in place. BEFORE installing.
I. GENERAL
A. Unpacking:
Be careful not to damage or deform any parts of the blower when removing it from the packaging container. All the
packaging material should be kept in the event the blower needs to be returned.
Handling:
Handling of the blower should be performed by trained personnel and be consistent with all safe handling practices.
Verify that all lifting equipment is in good operating condition and has the proper lifting capacity. The blower should
be lifted using well-padded chains, cables or lifting straps with spreader bars. ifting eye locations are provided in
the blower base. NEVER lift the blower by an inlet or discharge flange, blower or motor shaft, motor eye bolt,
or any other part of the blower assembly that could cause distortion of the blower assembly.
B. Safety Instructions & Accessories:
1. Safety Instructions:
All installers, operators and maintenance personnel should read AMCA Publication 410-96, “Recommended Safety
Practices for Users and Installers of Industrial and Commercial Fans”. This manual is included with the blower.
Additional copies can be requested by writing us at Cincinnati Fan, 7697 Snider Rd., Mason, OH 45040-9135
2. Sound:
Some blowers can generate sound that could be hazardous to personnel. It is the responsibility of the user to measure
the sound levels of the blower and/or system, determine the degree of personnel exposure, and comply with all appli-
cable safety laws and requirements to protect personnel from excessive noise.
I. GENERAL
A. Unpacking and Handling ..................................2
B. Safety Instructions & Accessories.................2-3
II. INSTALLATION
A. Vibration............................................................3
B. Mounting Methods.........................................3-4
C. Safety Guards...................................................4
D. Set Screw and Taper-lock Bushing
Torque Values....................................................5
E. Blower Bearings................................................5
F. V-Belt Drives .....................................................5
G. V-Belt Drive Installation .................................5-6
III. ELECTRICAL
A. Disconnect Switches.........................................6
B. Motors............................................................7-8
C. Maximum Speed & Speed Controllers .............8
IV. INITIAL UNIT STARTUP
A. Pre-Startup & Post-Startup Checks ..............8-9
B. Vibration ......................................................9-10
V. ROUTINE INSPECTION & MAINTENANCE
A. Hardware ...................................................10-11
B. Motor or Blower Bearing ubrication ..............11
C. Wheel Balance ..........................................11-12
D. Vibration..........................................................12
E. Blower Shaft or Bearing Replacement ......12-13
F. Safety Equipment or Accessories...................13
VI. ORDERING REPLACEMENT PARTS ..................13
VII. TROUBLESHOOTING ...........................................14
VIII. LONG TERM STORAGE.......................................15
IX. WARRANTY, LIMITS OF LIABILITY,
RESPONSIBILITY & RETURNS..........................16
X. PARTS DRAWING.................................................17

OMM-11-0211-page 3
3. Air Pressure and Suction:
In addition to the normal dangers of rotating machinery, the blower can present additional hazards from the suction or pres-
sure created at the blower inlet or discharge. Suction at the blower inlet can draw materials into the blower where they
become high velocity projectiles at the discharge and cause severe personal injury or death. It can also be extremely dan-
gerous to persons in close proximity to the inlet or discharge as the forces involved can overcome the strength of most indi-
viduals.
NEVER OPERATE A BLOWER WITH A NON-DUCTED INLET AND/OR DISCHARGE. IF THE BLOWER INLET
AND/OR DISCHARGE IS NON-DUCTED, IT IS THE USERS RESPONSIBILITY TO INSTALL AN
INLET AND/OR DISCHARGE GUARD.
NO GUARANTEE OF ANY LEVEL OF SPARK RESISTANCE IS IMPLIED BY SPARK RESISTANT CONSTRUCTION.
IT HAS BEEN DEMONSTRATED THAT ALUMINUM IMPELLERS RUBBING ON RUSTY STEEL CAN CAUSE HIGH
INTENSITY SPARKS. AIR STREAM MATERIAL AND DEBRIS OR OTHER SYSTEM
FACTORS CAN ALSO CAUSE SPARKS.
4. Temperature:
Many blowers, blower components and all motors operate at temperatures that could burn someone if they come in contact
with them. If this potential hazard could exist in your installation, steps must be taken by the user to protect anyone from
coming in contact with this equipment.
5. Spark Resistance: (Per AMCA Standard 99-0401-86 and ISO 13499)
6. Safety Accessories:
Guards:
All moving parts must be guarded to protect personnel. Safety requirements can vary, so the number and types of guards
required to meet company, local, state and OSHA regulations must be determined and specified by the actual user or oper-
ator of the equipment.
NEVER start any blower without having all required safety guards properly installed. All blowers should be
checked on a regular schedule, for missing or damaged guards. If any required guards are found to be missing or
defective, the power to the blower should be immediately turned off and locked out in accordance with OSHA regu-
lations. Power to the blower should NOT be turned back on until the required guards have been repaired or
replaced.
This blower can become dangerous due to a potential “windmill” effect, even though all electrical power has been turned off
or disconnected. The blower wheel should be carefully secured to prevent any rotational turning BEFORE working on any
parts of the blower/motor assembly that could move.
7. Access or Inspection Doors:
II. INSTALLATION
A. Vibration:
Before any mounting method is selected, the user should be aware of the effects vibration will have on the blower, motor
and other parts. Improper blower installation can cause excessive vibration causing premature wheel and/or bearing failure,
that is not covered under warranty. Vibration eliminator pads, springs or bases should be properly installed to prevent any
blower vibration from transmitting to the foundation or support structure.
B. Mounting Methods:
The blower wheel for this model blower was dynamically balanced before assembly. The completed blower was also tested
at the operating speed to make sure it conformed to Cincinnati Fan vibration limits. However, proper mounting is necessary
to make sure the blower will operate smoothly. The vibration levels this blower will acturally operate at will depend on how
rigidly the blower is mounted. If the structural support the blower is mounted on is too weak, severe vibration problems can
occur. Plug fans are designed to be mounted to a plenum or main support structure, like oven walls. The panel is bolted
directly to the wall and the blower wheel is mounted on the blower shaft that passes through a hole in the wall. See
Fig. 1
on page 4.
WARNING
DANGER
I
SHUT THE BLOWER DOWN IMMEDIATELY IF THERE IS ANY SUDDEN INCREASE IN VIBRATION.
WARNING
NEVER OPEN ANY ACCESS OR INSPECTION DOORS WHILE THE BLOWER IS OPERATING. SERIOUS IN URY OR
DEATH COULD RESULT FROM THE EFFECTS OF AIR PRESSURE, AIR SUCTION OR MATERIAL THAT IS BEING
CONVEYED. DISCONNECT OR LOCK OUT POWER TO THE BLOWER AND LET THE BLOWER WHEEL COME TO A
COMPLETE STOP BEFORE OPENING ANY TYPE OF ACCESS OR INSPECTION DOOR.
DANGER

OMM-11-0211-page 4
The plug fan panel has a formed channel on all four sides to add to the rigidity of the blower and the mounting struc-
ture. The front of the panel also contains pre-punched holes to mount the panel to your structure.
Plug fans are shipped with an inlet bell, but it is the users responsibility to provide the mounting structure and hardware
to mount the bell. In most cases, the inlet bell mounting structure is an internal wall or plenum. The wall or plenum
MUST be parallel with the mounting structure the blower is bolted to, to maintain the correct wheel-to-inlet bell clear-
ance shown in Table 1 below. The inlet bell plenum or wall must also be rigid enough to prevent movement or pulsation
of the inlet bell during operation.
Fig. 1
Table 1
Fan Size
120
130
150
160
180
“A” Dimension
1/8
1/8
5/16
5/16
5/16
Fan Size
200
220
240
270
300
“A” Dimension
5/16
5/16
3/8
7/16
1/2
C. Safety Guards:
Cincinnati Fan offers guards, as optional, to keep your blower in compliance with OSHA safety regulations. These
include shaft/bearing guards and belt guards. Arrangement 9 blowers come with belt guards as standard.The base
design on Models CPF and CPAF also acts as a shaft and bearing guard as long as the access holes are closed. With
any blowers built with high temperature construction, a heat slinger guard is standard. It is the responsibility of the user
to make sure this blower meets all local, state and OSHA safety regulations. If you have a specific guard requirement
not covered by OSHA, please contact the local Cincinnati Fan sales office for assistance.
Inlet
Bell
ABell Overlap
Wheel-to-Inlet
Wheel

OMM-11-0211-page 5
D. Set Screw and Taper-lock Bushing Torque Values:
All blower wheel set screws are tightened to the proper torque prior to shipment. Some wheels may have taper-lock hubs
and split, taper-lock bushings to secure the wheel to the blower shaft.
NOTE: Check all set screw or taper-lock bushing torques. Forces encountered during shipment, handling, rigging and tem-
perature can affect factory settings. For correct torque values, see Tables 2 and 3below.
Set screws should NEVER be used more than once. If the set screws are loosened, they MUST be replaced.
Use only knurled, cup-point, set screws with a nylon locking patch.
CAUTION
E. Blower Bearings:
The blower bearings have set screws to lock the bearings onto the blower shaft. The set screws should be tightened to the
torque levels as shown in Table 2 above. Blower bearings should be lubricated in accordance with the bearing manufactur-
er’s recommendation and with the same type of grease. See chart under B-2 on page 11. Bearings are pre-lubricated at
the factory. The blower shaft/bearing access hole covers and belt guard should only be opened or removed for inspection
before startup or inspection or maintenance AFTER the power to the motor has been turned off and locked out. The
shaft/bearing access covers and belt guard MUST be replaced before power to the motor is turned back on.
F. V-Belt Drives:
If Cincinnati Fan supplied the belts and sheaves (drives package), they were carefully selected for the specific operating
conditions supplied to us by the customer.
If the user is supplying the sheaves and/or belts, it is their responsibility to make the correct component selections for the
specific operating conditions. Their selection must also NOT ALLOW the blower to exceed its maximum safe speed or
hub load. If you do not know the maximum safe speed or hub load for this blower, DO NOT make any drive selection
without first consulting Cincinnati Fan or our sales office for your area. “Timing” belts should never be used on blow-
ers. If you are replacing belts and/or sheaves, checking belt tension or proper alignment, see below and page 6. Sheave
set screws or taper-lock bushing bolts should be tightened to the torque values as indicated in Tables 1 and/or 2above.
G. V-Belt Drive Installation:
Power to the motor must be turned off and locked out, BEFORE inspecting, installing or servicing any compo-
nents of the drives. READ THE BELOW AND FOLLOW ALL THE STEPS ON PAGE 6.
If you are installing any new belts, inspect and replace any worn or damaged sheaves, bearings or shafts while the power is
turned off and locked out. This will eliminate additional down time later to replace any other parts that were worn or defec-
tive.
SET SCREW TORQUE VALUES TORQUE VALUES FOR
TAPER-LOCK BUSHINGS
Diameter & Number
of Treads/Inch
Hex Wrence Size
(Across Flats)
Required Torque
(Inch Pounds)
1/4-20
5/16-18
3/8-16
7/16-14
1/2-13
5/8-11
1/8”
5/32”
3/16”
7/32”
1/4”
5/16”
65
165
228
348
504
1104
Taper-lock
Bushing Size
Required Torque
(Inch Pounds)
H
B
P
Q
R
95
192
192
350
350
Table 3Table 2
Changing any of the v-belt drive component selections, supplied with the blower, could result in unsafe
operating conditions which could cause equipment failure, personal injury and death.
DANGER
If you are installing a complete set of new drives, the most
critical steps of the installation are alignment of the sheaves
and belt tension. Misaligned sheaves and/or improper
belt tension will cause excessive fan vibration and
result in premature belt and /or bearing failure.
The blower and motor shafts must be parallel and the
sheaves must be in line with each other. See Fig. 2 on the
right:
For complete drive installation
instructions, please see these
websites:
www.emerson-ept.com/catalogs/instshts/browning/form5453.pdf
OR
www.maskapulleys.com/images/produit/Product%20Training_jan09.1.pdf
Fig. 2
Shafts not parallel Sheaves not aligned Proper alignment

OMM-11-0211-page 6
ASSEMBLY STEPS: (Below are general instructions. Obtain specific instructions from your drives dealer)
1. Remove belt guard and open shaft access holes. Remove the protective coating from the blower and motor shafts.
2. oosen (don't remove) the four bolts in the side of the motor adjustment base. Now you can adjust the centerline
height of the base by turning the four bolts in the top of the adjustment base, next to the motor feet. ower the motor
adjustment base so the motor shaft is as close to the fan shaft as possible. Now loosen (don't remove) the 4 bolts
holding the motor feet to the adjustment base.
NOTE: The 4 nuts that secure the motor feet onto the motor slide base should be loosened just enough so the
motor will slide along the slide base before you loosen or tighten the belt tension adjustment bolt(s).
3. If you are replacing the belt(s) and/or sheaves, remove belt(s) from sheaves and then loosen the sheaves set screws
or taper-lock bushings to remove the sheaves.
4. Check the blower and motor shafts for any nicks or burrs. Remove any burrs with a file or emery paper.
5. Slide the new sheaves onto the blower and motor shafts. DO NOT drive or pound the sheaves on as this may dam-
age the blower and/or motor bearings.
6. Check the blower and motor shafts to make sure they are parallel and aligned as shown in Fig. 2 on page 5.
7. Place the belt(s) over the sheaves. DO NOT force, pry or “roll” the belts, as this could damage the cords in the
belt(s). If there is more than 1 belt, all the belts should be a “matched set”.
8. Align the blower and motor sheaves with a straight-edge or string as shown in Fig. 3 below. If the sheaves are not
the same width, align by sight. For more precise methods, consult your local drives dealer.
NOTE: Any sheave with a taper-lock bushing will slide a little on the shaft as the bolts are tightened. You will need to
compensate for the sliding before performing Step 9.
9. Tighten the set screws in the sheaves or the bolts in the taper-lock bushings to the correct torque values as indicat-
ed in Tables 2 and/or 3 on page 5.
10. Tighten the 4 bolts in the motor feet. Adjust the motor adjustment base until the belts become snug. Repeat Steps 6
and 8 above.
11. Tighten the 4 bolts in the side of the adjustment base to secure it.
CAUTION: BEFORE ATTEMPTING STEPS 12 AND 15, MAKE SURE THE AREA AROUND THE BLOWER IS
SAFE AND SECURED SO NO ONE CAN GET NEAR THE BLOWER AND POSSIBLY GET IN URED
WHEN IT IS STARTED.
12. Unlock power to the motor and run the blower for 15-20 minutes to allow belts to “seat” properly. Then turn off and
lock out power to the motor.
13. oosen the 4 bolts in the side of the motor adjustment base and re-adjust the belt tension. Final belt tension
should be checked with a “tensioning gauge”. Repeat Steps 6 and 8above.
14. Tighten the 4 bolts in the side of the motor adjustment base.
15. Unlock power to the motor and run the blower for 8 hours. The belts should be running as shown in Fig. 4 below. If
not, repeat steps 13 and 14 after you have turned off and locked out power to the motor.
16. Turn off and lock out power to the motor, reinstall belt guard and cover the bearing/shaft access holes. Unlock the
power to the motor and run the blower.
17. After running the blower for 24 hours, turn off and lock out power to the motor. Then, remove belt guard. Repeat
Steps 13 through 16 above.
18. After running the blower for 100 hours, lock out power to the motor, remove belt guard and repeat steps 13
through 16. Repeat this periodically, but never more than a one year period.
Fig. 3
III. ELECTRICAL
A. Disconnect Switches:
All blower motors should have an independent disconnect switch located in close visual proximity to turn off the elec-
trical service to the blower motor. Disconnects must be locked out in accordance with OSHA “lock out-tag out”
procedures any time inspection or maintenance is being performed on the blower and/or motor assembly.
The “lock out-tag out” procedure should be performed by a licensed electrician or authorized personnel.
All disconnects should be sized in accordance with the latest NEC codes (National Electric Codes) and any local
codes and should be installed only by a licensed electrician. “Slow blow” or “time delay” fuses or breakers should be
used since the initial start-up time for the blower motor, although rare, can be up to 10 seconds.
Straight edge
should touch
sheaves at
these 4 points.
Straight
Edge
To o Tight
To o Loose
Proper Tension
(Slight Bow)
Fig. 4

OMM-11-0211-page 7
B. Motors:
1. DO NOT connect or operate a motor without reading the motor manufacturers instructions supplied with the
motor. The basic principle of motor maintenance is: KEEP THE MOTOR CLEAN AND DRY. This requires periodic
inspections of the motor. The frequency of the inspections depends on the type of motor, the service and environment
it will be subjected to and the motor manufacturers instructions.
2. Cleaning: Cleaning should be limited to exterior surfaces only. Follow motor manufacturers cleaning instructions.
3. Lubrication: Most small motors have sealed bearings that are permanently lubricated for the life of the motor. Some
larger motors have grease plugs that should be replaced with grease fittings to perform re-lubrication. These motors, or
any motor with grease fittings, should be lubricated in accordance with the motor manufacturers recommendations.
ubrication frequency depends on the motor horsepower, speed and service. BE SURE you use compatible grease
and DO NOT over grease.
4. Location: If the motor will be outside and subjected to the weather, it is recommended that a weather cover be
installed to keep rain and snow off of the motor. No motors are guaranteed to be “watertight”. Be careful to allow
enough openings between the motor and the motor cover to let the motor ”breath”. If the back end of the motor is cov-
ered, the cover should be no closer than 3” to the back of the motor for proper ventilation.
5. Wiring Connections: All wiring connections should be made for the proper voltage and phase as shown on the motor
nameplate. Connections should follow the motor manufacturers recommendations as shown on the wiring schematic.
This wiring diagram will be located on the outside of the motor, inside of the motor conduit box or on the motor name-
plate. Reversing some wires might be necessary to get the correct blower rotation.
6. Motors with Thermal Overload Protection: If a motor is equipped with thermal overloads, the thermal overload must
be wired per the wiring schematic to be operable. There are 3 types of thermal overloa s:
a. Automatic: These will automatically shut the motor down if the internal temperature exceeds the design limits.
b. Manual: These motors will have a button on them. If the motor overheats, it will shut down. After you have
inspected the motor and eliminated the over heating problem, you will need to “reset” it by pushing the button.
Lock out the power BEFORE inspecting the motor.
c. Thermostats: This type of thermal is a temperature sensing device ONLY. If the motor overheats, the thermo-
stats will open or close (depending on the type) and send a “signal” to the electrical box. THEY WILL NOT
TURN THE MOTOR OFF. These are pilot circuit devices that must be connected to the magnetic starter
circuit.
7. EXPLOSION PROOF Motors: No motor is explosion proof. Explosion proof motors are designed so if there is an
explosion WITHIN the motor, the explosion will be CONTAINED INSIDE the motor and not allowed to get out to the
atmosphere. All explosion proof motors must be selected based on the atmosphere and/or the environment the motor
will be operating in. Explosion proof motors are designed, rated, and labeled for their operating conditions based on
Classes, Groups and “T” Codes. The Class, Group and “T” code of an EXP motor MUST be selected based on the
atmosphere and/or environmental conditions the motor will be operating in. Consult the NEC (National Electric
Code) and the NFPA (National Fire Protection Association) for the proper EXP motor Class, Group and “T”
Code required for your specific application and location.
NOTICE:
a. All EXP motors have some type of thermal overload as required by UL (Underwriters Laboratories). Refer
to all of Section 6 above.
b. All EXP motors are required to have the UL (Underwriters Laboratories) and CSA (Canadian Standards
Association) listing numbers on the motor name plate or on a separate plate attached to the motor. The
Class, Group and “T” Code the motor is designed for must also be listed.
MAKE SURE YOU LOCK OUT THE POWER TO THE MOTOR BEFORE INSPECTING ANY MOTOR WITH
AUTOMATIC THERMALS, WHEN THE THERMALS COOL DOWN, THEY WILL ALLOW THE MOTOR TO
AUTOMATICALLY START UP AGAIN, UNLESS YOU HAVE LOCKED OUT THE POWER TO THE MOTOR.
DANGER
IF AN EXPLOSION PROOF MOTOR IS USED IN AN AREA CONTAINING VOLITILE LIQUIDS, GASES,
FUMES OR DUST FOR WHICH THE MOTOR WAS NOT DESIGNED TO OPERATE IN,
AN EXPLOSION AND/OR FIRE CAN OCCUR
DANGER
ALL WIRING CONNECTIONS, INSPECTION AND MAINTENANCE OF ANY MOTOR MUST BE PERFORMED BY
A LICENSED ELECTRICIAN IN ACCORDANCE WITH THE MOTOR MANUFACTURERS RECOMMENDATIONS,
ALL ELECTRICAL CODES AND OSHA REGULATIONS. FAILURE TO PROPERLY INSTALL, MAKE WIRING
CONNECTIONS, INSPECT OR PERFORM ANY MAINTENANCE TO A MOTOR CAN RESULT IN MOTOR
FAILURE, PROPERTY DAMAGE, EXPLOSION, ELECTRICAL SHOCK AND DEATH.
DANGER

OMM-11-0211-page 8
A. Pre-Startup & Post-Startup Checks: (Check blocks as each step is completed. Retain this for your records.)
A1. Pre-Startup Checks Completed By: _______________________________ DATE: ___________________
A2. 8 Hour, Post-Startup Checks Completed By: ____________________ DATE: ___________________
A3. 3 Day, Post-Startup Checks Completed By: __________________ DATE: ___________________
MAKE SURE POWER TO THE MOTOR IS LOCKED OUT BEFORE STARTING PRE-START OR POST-START CHECKS.
1. ■■■■■■Check all blower hardware to make sure it is tight.
2. ■■■■■■Check all blower wheel, sheave and bearing set screws to make sure they are tight per Table 2 on page 5.
3. ■■■■■■If the blower wheel or sheaves have a taper-lock bushing, make sure the bolts are tightened per Table 3 on page 5.
4. ■■■■■■Make certain there is no foreign material in the blower housing (optional) that can become a projectile.
5. ■■■■■■Make sure any inspection doors in the blower housing or duct work are securely bolted or locked.
6. ■■■■■■Ensure all electrical power components are properly sized and matched for your electrical system.
7. ■■■■■■Check the blower wheel, by turning the blower shaft by hand, to ensure it rotates freely.
8. ■■■■■■Check sheaves for proper alignment and belts for proper tension. See instructions on pages 5 and 6.
9. ■■■■■■Check that all required guards are properly secured.
10. ■■■■■■If your blower is mounted on an elevated support structure, make sure the structure is welded at all the joint con-
nections, welds have not cracked and the structure is properly braced to prevent “side sway”.
11. ■■■■■■Never subject a “cold” blower to a “hot” gas stream. If the blower will be handling “hot gases” greater than 150°F
(65°C) it is imperative that the blower be subjected to a gradual rate of temperature increase, not to exceed
15°F/minute (8°C/minute). The same temperature limits are also important when the blower is experiencing a drop
in temperature until the temperature drops down to 150°F (65°C). Only, when the entire blower has reached an
equilibrium temperature of 150°F (65°C), or less, should the power be turned off.
12. ■■■■■■Make sure the power source connections to the blower motor are per the motor manufacturer’s instructions.
13. ■■■■■■Make sure the blower wheel is stationary prior to startup. Starting a blower with a wheel that is rotating back-
wards can cause wheel damage.
14. ■■■■■■Apply power to the blower motor momentarily (i.e. “bump start”) to check for proper blower wheel rotation. If the
blower is rotating in the wrong direction, reconnect the motor leads per the motor manufacturer’s wiring schematic.
Blower rotation is determined by viewing the blower from the motor or drive side of the blower, NOT from
the inlet side. After reconnecting the leads, repeat this step. See Fig. 5 below.
8. Normal Motor Operating Temperatures:
Using your hand to test the normal running temperature of a motor can be a very painful experience;
The normal operating temperature of a fully loaded, open type, electric motor operating in a 70°F. (21°C.)
ambient temperature is 174°F. (79° C.)
C. Maximum Blower Speed and Motor Speed Controllers:
If you will be using any type of motor speed controller with this blower, DO NOT exceed the maximum safe
blower speed. Installing and using a speed control device requires special training and certification as required by the
speed control manufacturer. See the manufacturers instructions for proper use, installation and wiring connections for
the maximum speed settings. It may be necessary to “block out” some speeds to eliminate a resonant vibration prob-
lem. The maximum safe blower speed is shown on the data sheet shipped with the blower. If you have lost the data
sheet, contact Cincinnati Fan or our sales office for your area. You must have the serial number from the blower name
plate for us to determine the maximum safe blower speed.
Cincinnati Fan will only extend the motor manufacturers warranty, when used with a speed controlling device, if the
motor has the words “Inverter Duty” marked on the motor name plate. If the motor does not have “Inverter Duty”
marked on the motor name plate, and you have a motor failure, you will be required to contact the motor manufacturer
for any service or warranty claims.
NOTICE: Failure to complete and document all the following pre-startup and both post-startup
checks, listed in sections A (below) and B on page 9, could void all warranties.
Blower
Sheaves
IV. INITIAL UNIT STARTUP
Fig. 5
Clockwise (CW) Rotation Counter-Clockwise (CCW) Rotation

OMM-11-0211-page 9
15. ■■■■■■Apply power to the motor and let it come up to full speed. Turn off the power. ook and listen for any unusual
noise or mechanical abnormality while the blower wheel is still spinning. If any are noticed, lock out the power,
wait for the blower wheel to come to a complete stop, locate the cause and correct it.
16. ■■■■■■Unlock power and start the blower.
17. ■■■■■■Unlock power to the motor and run the blower for 15-20 minutes to allow belts to “seat” properly. Turn off and
lock out power to the motor.
18. ■■■■■■Remove the belt guard.
19. ■■■■■■Check the belt tension with a “belt tensioning gauge”. If the belts are too loose, loosen the 4 nuts holding the
motor feet on the motor slide base and re-adjust the belt tension.
20. ■■■■■■Tighten the 4 nuts in the motor feet.
21. ■■■■■■Unlock power to the motor and run the blower for 8 hours. The belts should be running as shown in Fig. 4 on
page 6. If not, repeat steps 19 and 20 after you have turned off and locked out power to the motor.
22. ■■■■■■When belts are running properly, turn off and lock out power to the motor. Re-install belt guard
23. ■■■■■■Unlock power to the motor and run the blower.
24. ■■■■■■Measure, record and keep the following motor data for future reference and comparison:
(Single phase motors will only have L1 and L2 leads)
Amperage draw on each motor lead: L1_______ L2_______ L3_______
(Running amps should NOT exceed the motor name plate amps for the voltage being operated on).
Voltage coming to motor leads: L1_______ L2_______ L3_______
(Should be about the same input voltage on all leads).
25. ■■After running the blower for 24 hours, turn off and lock out power to the motor, remove belt guard and repeat
steps 19 through 23 above.
26. ■■Repeat step 25 after 100 hours and periodically after that but never more than a one year period.
B. Vibration:
The blower was balanced at the factory to comply with ANSI/AMCA Standard 204-05, Category BV-3. However, rough
handling in shipment and/or erection, weak and/or non-rigid foundations, and misalignment may cause a vibration
problem after installation. After installation, the vibration levels should be checked by personnel experienced with vibra-
tion analysis and vibration analysis equipment.
NOTE:
The blower SHOULD NOT be operated if the vibration velocity of the blower exceeds 0.40 inches per second, filter out,
if the blower is rigidly mounted. If the blower is mounted on isolators or on an isolator base, it SHOULD NOT be oper-
ated if the vibration velocity of the blower exceeds 0.65 inches per second, filter out.
Vibration readings for belt driven blowers should be taken at the top, sides and end as per Fig. 6 below. They should
also be taken on the top, sides and ends of the blower bearings as per Fig. 7 below. After you have taken your vibra-
tion readings, write them down in the spaces in Fig. 8 on page 10 and keep for future comparison.
Taking vibration readings at the fan bearings must be performed with EXTREME CAUTION. Since the fan
must be running to take the readings, it is imperative that you exercise caution so as not to cause, or be
subjected to, personal injury from rotating belts and/or sheaves. This procedure should only be completed
by personnel trained in vibration analysis with the proper vibration analysis equipment.
DANGER
Fig. 7 (Blower bearing reading points)Fig. 6 (Motor reading points)

OMM-11-0211-page 10
Fig. 9 Vibration Severity Chart
BEFORE STARTING ANY INSPECTION OR MAINTENANCE, BE SURE BLOWER IS TURNED OFF, POWER IS
LOCKED OUT AND THE BLOWER WHEEL HAS BEEN CAREFULLY SECURED TO PREVENT WIND MILLING. IF THE
OPERATING CONDITIONS OF THE BLOWER ARE TO BE CHANGED (SPEED, PRESSURE, TEMPERATURE, ETC.)
CONSULT CINCINNATI FAN OR OUR SALES OFFICE FOR YOUR TERRITORY TO DETERMINE IF THE UNIT WILL
OPERATE SAFELY AT THE NEW CONDITIONS.
WARNING
V. ROUTINE INSPECTION & MAINTENANCE
Periodic inspection of all the blower parts is the key to good maintenance and trouble-free operation. The frequency
of inspections must be determined by the user and is dependent upon the severity of the application, BUT, it should
NEVER exceed a 12 month period. The user should prepare an inspection and maintenance schedule and make
sure it is adhered to.
Fig. 8
VIBRATION METER PROBE POSITIONS
For Arrangement 9 Blowers

OMM-11-0211-page 11
A. Hardware:
All blower and foundation hardware should be checked to make sure it is tight. All set screws or taper-lock bushing
bolts should be tightened to the torque values shown in Tables 2 and 3 on page 5.
NOTE: If any set screws have become loose, they must be thrown away and replaced. NEVER use set screws more
than once. Replace with knurled, cup-point set screws with a nylon locking patch.
B. Motor and Blower Bearing Lubrication:
1. Motor Bearings:
Most smaller motors have sealed bearings that never require re-lubrication for the life of the motor. For any motors with
grease fittings, consult the motor manufacturers recommendations with reference to the lubrication frequency and the
type of grease that should be used.
DO NOT over grease the motor bearings. Generally, 1-2 shots should be enough. Use a hand operated grease gun at
no more than 40 PSI. IF POSSIBLE, CAREFULLY lubricate the motor bearings while the motor is running.
2. Blower Bearings:
Blower bearings should be re-lubricated per the chart below for all clean and dry applications where the ambient tem-
perature or blower air temperature is -20°F (-29°C) up to 120°F (49°C). If your application is dirty, moisture laden air, or
is outside the temperature limits stated previously, consult the bearing manufacturer for the proper grease type and
lubrication frequency. The chart below is affixed to every belt driven blower base.
NOTE: For high temperature applications that require high temperature grease in the blower bearings, a chart
similar to below will also specify that ONLY Dow Corning DC44 (silicone based) high temperature
grease should be used.
DO NOT over grease the blower bearings. Generally, 1-2 shots should be enough. Use a hand-operated grease gun at
no more than 40 PSI. IF POSSIBLE, CAREFULLY lubricate the blower bearings while the blower is running.
C. Wheel Balance:
All blower wheels are balanced at the factory. It is not uncommon that additional “trim balancing” is required after the
blower is assembled. Trim balancing of the blower assembly, in the field, is typically always necessary for all replace-
ment wheels. After any wheel is installed, the final balance of the entire blower assembly should be checked.
Refer to Section B on page 9 and Fig. 9 on page 10.
Airstream material or chemicals can cause abrasion or corrosion of the blower parts. This wear is generally uneven
and, over time, will lead to the wheel becoming unbalanced causing excessive vibration. When that happens, the wheel
must be rebalanced or replaced. The other airstream components should also be inspected for wear or structural dam-
age and cleaned or replaced if necessary. After cleaning any blower wheel, it should be balanced and then “trim
balanced” on the blower shaft.
FAN
OPERATING
SPEED (RPM)
1/2” TO
1”
11/8” TO
11/2”
15/8” TO
115/16”
2” TO
21/2”
211/16” TO
33/16”
37/16” TO
315/16”
FAN SHAFT O.D. IN INCHES
6
6
6
5
5
5
4
3
2
2
UP TO 500
501-1000
1001-1500
1501-2000
2001-2500
2501-3000
3001-3500
3501-4000
4001-4500
4501-5000
6
6
5
5
5
4
3
3
2
1
6
6
5
4
3
2
2
1
1
—
6
5
4
3
2
2
1
—
—
—
5
4
3
2
2
1
—
—
—
—
5
4
2
1
—
—
—
—
—
—
The above lubrication frequencies are based on the fan bearings operating in a clean and dry
environment from -20°F (-29°C) up to 120°F (49°C). For hostile, moisture laden environments
and/or temperatures below -20°F (-29°C) or above 120°F (49°C), consult the bearing
manufacturer for the proper grease type and recommended lubrication frequencies.
If possible, carefully lubricate the bearings while the fan is running.
Add grease until a slight bead appears at the bearing seals. DO NOT over grease.
Generally, 1-2 shots with a hand grease gun that has a maximum pressure rating of 40 PSI.
Warning: Over greasing bearings will cause them to run hot.
The TYPE of grease you use MUST BE compatible with the grease already in the bearings.
THIS FAN IS EQUIPPED WITH BEARINGS PRE-LUBRICATED AND READY FOR USE
Generally Recommended Lubrication Frequency in MONTHS

OMM-11-0211-page 12
To balance a blower wheel:
1. Add balancing weights for fabricated aluminum, steel or stainless steel wheels:
Balance weights should be rigidly attached to the wheel at a location that will not interfere with the blower hous-
ing nor disrupt air flow. They should (if at all possible) be welded to the wheel. When trim balancing the wheel,
on the blower shaft,be sure to ground the welder directly to the wheel. Otherwise, the welding current will likely
pass through the blower shaft and damage the blower and/or motor bearings.
NOTE:
Removing any Backward Inclined or Airfoil wheel requires special attention when reinstalling it. Make sure you
reinstall the wheel so the proper wheel-to-inlet bell clearance is maintained. Failure to do this will affect the blow-
er’s airflow (CFM), and/or static pressure (SP) capabilities and efficiency. See Table 1 on page 4. Consult
Cincinnati Fan or our local sales office for your area for assistance if necessary.
D. Vibration:
As mentioned previously in this manual, excessive vibration can cause premature motor and/or blower bearing failure that
could lead to catastrophic failure of the blower. After performing any routine maintenance, the vibration readings should be
taken again. New readings should be taken (maximum every 12 months) and compared to the readings you recorded in
Fig. 8, on page 9, during the initial startup. If any major differences are present, the cause should be determined and
corrected before the blower is put back into operation.
The most common causes of vibration problems are:
1. Wheel unbalance 4. Poor blower inlet and/or discharge conditions
2. Bearing failure 5. Foundation stiffness
3. Mechanical looseness 6. Misaligned sheaves and/or belts
E. Blower Shaft & Bearing Replacement:
The blower shaft and bearings for Cincinnati Fan blowers are carefully selected to match the maximum load and operating
conditions for each specific blower model. If the instructions in this manual and those provided by the bearing manufacturer
are followed, you should not need to replace the bearings for many years.
When you do need to replace the bearings, it is strongly recommended that the blower shaft also be replaced at
the same time.
Use the following applicable steps when replacing the blower bearings and/or blower shaft.
1. LOCK OUT THE POWER SOURCE TO THE MOTOR AND LET THE WHEEL COME TO A COMPLETE STOP.
2. Remove the inlet bell.
3. If necessary, disconnect the optional blower housing.
4. Measure the location of the blower wheel on the shaft. Record the dimension.
5. Remove the locking hardware in the wheel hub.
6. Carefully remove the wheel.
7. Remove the belt guard and open the shaft/bearing access hole covers in the side of the base.
8. oosen (but don't remove) the 4 bolts in the side of the motor adjustment base.
9. oosen the belt tension by turning the 4 bolts in the top of the motor adjustment base.
10. Remove the belt(s).
11. oosen the blower sheave set screws, or taper-lock hub bolts, and remove the blower sheave.
12. Disconnect the lube lines to the blower bearings.
13. Remove the 4 bolts holding the two bearings on the bearing base. Be careful not to change the location of any bearing
riser shims that might be under the bearings.
14. Remove the shaft and bearing assembly from the blower.
15. There is a rust preventative coating that was applied to the blower shaft before shipment. Remove this coating at all areas
on the shaft with a solvent or degreaser.
WARNING: DO NOT use gasoline to remove this coating. CAUTION: Use gloves to protect your skin.
16. Measure (and record) the distance between the bearings and the distance from each bearing to each end of the shaft.
17. Remove the hardware holding the bearings on the shaft and then, remove the bearings from the shaft.
18. When replacing the bearings, we strongly recommend that you also replace the blower shaft. However, if you intend to
use the same shaft, file down all set screw marks on the shaft from the bearings, blower wheel or sheave.
19. If you are replacing the blower shaft, it should be turned, ground and polished shaft material. It should be the same length
and diameter and have the same keyway sizes and lengths on both ends of the shaft.
20. Install new bearings onto the new or original blower shaft. Be sure the bearing locking collars are facing each other
and the set screws in the locking collars are in line with each other. DO NOT tighten the locking collars onto the
shaft at this time.
NOTE: If you are replacing “split housing” type bearings, refer to the bearing manufacturers directions for proper
mounting and adjustment.
21. Place the shaft and bearing assembly onto the blower bearing base with any bearing riser shims located under each bear-
ing as were under the original bearings in Step 13 above.
22. Install the hardware to hold the bearings to the bearing base. DO NOT tighten the hardware at this time.

OMM-11-0211-page 13
23. Adjust the blower shaft location in the bearings to the dimensions you recorded in Step 16 on page 12.
24. Tighten the hardware that holds the bearings on the bearing base.
25. Using a soft faced mallet, GENTLY tap on the blower shaft, in between the two bearings, while turning the blower
shaft by hand. This will "seat" the bearing races. The shaft MUST turn freely.
26. Tighten the set screws in both bearings. NOTE: If there are 2 set screws per bearing, make sure you tighten the set
screws in line with each other on each bearing and then the other set screws. Use new set screws only.See
Section D on page 5.
27. Turn the shaft by hand again to make sure it turns freely and does not bind.
28. Reconnect the bearing lube lines.
29. Slide the blower sheave onto the blower shaft. Install a new shaft key.
30. Align the blower and motor sheaves and adjust the belt tension per the instructions in Section G on pages 5 & 6
31. While rotating the blower shaft by hand, lubricate the new bearings with fresh grease per the instructions in Section
B-2 on page 11.
32. Install new set screws into the wheel hub, or new bolts into the taper-lock hub. DO NOT use old set screws or
bolts.
33. Install the blower wheel onto the shaft making sure it is located on the shaft per the dimension you took in Step 4 on
page 12.
34. Install a new shaft key into the wheel hub.
35. Turn the wheel by hand to determine there is no binding or rubbing anywhere.
36. Tighten the wheel set screw, over the key first, to the torque values in Table 2 on page 5. Now, tighten the set
screw onto the shaft to the same torque value. If the wheel has a taper-lock hub, tighten the bolts per Table 3 on
page 5.
37. Install the blower housing (if used).
38. Install the inlet bell with the clearance and dimensions per Table 1 on page 4.
39. Turn the wheel by hand to determine there is no binding or rubbing anywhere.
40. Unlock power to the motor, turn it on and let it run for 10 minutes.
41. Turn off and lock out power to the motor.
42. Check all set screws, nuts and bolts to make sure they are tight.
43. Install belt guard and close the shaft/bearing access hole covers. Install any other guards.
44 Unlock power to the motor, turn it on.
45 Repeat Steps 1, 7, 42, 43 and 44 (in that order) after 8 hours and again after 1 week.
F. Safety Equipment & Accessories:
It is the user’s responsibility to make sure that all safety guards required by company, local, state and OSHA regula-
tions are properly attached and fully functional at all times. If any guards become defective or non-functional at any
time, the power to the blower MUST be turned off and locked out until complete repairs and/or replacements
have been made, installed and inspected by authorized personnel. Any accessories used in conjunction with the
blower should also be inspected to make sure they are functioning within their intended limits and design specifica-
tions. The manufacturer’s maintenance manuals should be referred to for correct maintenance procedures. These
accessories include, but are not limited to, the following:
Shaft seals, inspection doors, vibration isolators or vibration bases, air flow or pressure measuring equipment,
hoods, controls, special coatings, silencers, expansion joints, valves, flexible connectors, filters, sheaves and
belts.
VI. ORDERING REPLACEMENT PARTS:
Under normal conditions, you should not need any spare or replacement parts for at least 24 months after shipment
from Cincinnati Fan. That does not include any wear due to abrasion, corrosion, excessive temperatures, abuse,
misuse, accident or any severe conditions the fan was not designed for.
A. If this fan is vital to any process that could cost you lost revenue, we strongly recommend that you keep a
blower wheel, blower shaft and bearings, motor, sheaves and belt(s) at your location.
B. If this fan is vital for the safety of any people and/or animals, we strongly recommend that you keep a com-
plete blower/motor assembly, as originally ordered, at your location.
To order any parts or complete units, contact us for the name of our sales office for your area. Or you can find them
on our website at: www.cincinnatifan.com
WE MUST HAVE THE BLOWER SERIAL NUMBER FROM THE BLOWER NAME PLATE TO IDENTIFY PARTS CORRECTLY.

OMM-11-0211-page 14
VII. TROUBLESHOOTING
Potential problems and causes listed below are in no order of importance or priority. The causes are only a list
of the most common items to check to correct a problem. If you find the cause of a problem, DO NOT assume it is
the ONLY cause of that problem. Different problems can have the same causes.
Troubleshooting should only be performed by trained personnel. Any potential electrical problems should only
be checked by a licensed electrician. All safety rules, regulations and procedures MUST be followed. Failure to
follow proper procedures can cause property damage, severe bodily injury and death.
DANGER

OMM-11-0211-page 15
VIII. LONG TERM STORAGE INSTRUCTIONS: (Storage exceeding 30 days after receipt of equipment)
NOTE: Failure to a here to these instructions voi s all warranties in their entirety.
1. Storage site selection:
(a) evel, well-drained, firm surface, in clean, dry and warm location. Minimum temperature of 50°F (10°C).
(b) Isolated from possibility of physical damage from construction vehicles, erection equipment, etc.
(c) Accessible for periodical inspection and maintenance.
2. The blower should be supported under each corner of its base to allow it to “breathe”. Supports (2 x 4’s, timbers, or
railroad ties) should be placed diagonally under each corner.
3. If the equipment is to be stored for more than three (3) months, the entire blower assembly must be loosely covered
with plastic, but not tightly wrapped.
4. Initial inspections must be made of the following components, and immediate corrective action taken if discrepancies
are found, to insure adequate protection of the equipment during storage.
(a) Blower bearings only should be completely filled with lubricant to minimize the chance of oxidation or
rust.
(b) Sheave center distance should be reduced to reduce tension on the belts.
5. Storage Maintenance:
A perio ic inspection an maintenance log, by ate an action taken, must be evelope an main-
taine for each blower. See example below. Each item must be checke monthly.
EXAMPLE: Storage / Maintenance Schedule Log
6. General Motor Procedure:
If the motor is not put into service immediately, the motor must be stored in a clean, dry, warm location. Minimum
temperature of 50°F. (10°C,). Several precautionary steps must be performed to avoid motor damage during storage.
a. Use a “Megger” each month to ensure that integrity of the winding insulation has been maintained. Record
the Megger readings. Immediately investigate any significant drop in insulation resistance.
b. DO NOT lubricate the motor bearings during storage. Motor bearings are packed with grease at the factory.
Excessive grease can damage the insulation quality in the motor.
c. If the storage location is damp or humid, the motor windings must be protected from moisture. This can be
done by applying power to the motor’s space heaters, (IF AVAI AB E) while the motor is in storage. If the
motor does not have space heaters, storing it in a damp or humid location will, very quickly, cause internal
corrosion and motor failure which is not warranted.
d. Rotate motor shaft a minimum of 10 full turns each month to keep bearing grease from separating and dry-
ing out.
NOTE:
For specific storage instructions, for the actual motor and any accessory parts that were supplied, refer
to the manufacturer’s instructions.

OMM-11-0211-page 16
DISCLAIMER
This manual, and all its content herein, is based on all applicable known material at the time this manual was created. Any
parts of this manual are subject to change at any time and without notice.
If any statements, diagrams and/or instructions contained herein, for components not manufactured by the Seller, conflict
with instructions in the manufacturer’s manual (i.e.: motors, bearings, belts and sheaves, dampers, etc.), the instructions in the
manufacturer’s manual, for that component take precedent.
Should you want the latest version of this manual, please contact us or our sales office for your area. Or, you can print a current
version by going to our website at: www.cincinnatifan.com
7697 Snider Road, Mason, OH 45040-9135
Phone: [phone] Fax: [phone]
E-Mail: [e-mail]
IX. LIMITED WARRANTY:
Cincinnati Fan & Ventilator Company (Seller) warrants products of its own manufacture, against defects of material and workman-
ship under normal use and service for a period of eighteen (18) months from date of shipment or twelve (12) months from date of
installation, whichever occurs first. This warranty does not apply to any of Seller’s products or any part thereof which has been
subject to extraordinary wear and tear, improper installation, accident, abuse, misuse, overloading, negligence or alteration. This
warranty does not cover systems or materials not of Seller’s manufacture. On products furnished by Seller, but manufactured by
others, such as motors, Seller extends the same warranty as Seller received from the manufacturer thereof. Expenses incurred
by Purchaser’s in repairing or replacing any defective product will not be allowed except where authorized in writing and signed
by an officer of the Seller.
The obligation of the Seller under this warranty shall be limited to repairing or replacing F.O.B. the Seller’s plant, or allowing credit
at Seller’s option. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EITHER EXPRESSED OR
IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND OF
ALL OTHER OBLIGATIONS AND LIABILITIES OF THE SELLER. THE PURCHASER ACKNOWLEDGES THAT NO OTHER
REPRESENTATIONS WERE MADE TO PURCHASER OR RELIED UPON BY PURCHASER WITH RESPECT TO THE QUALI-
TY OR FUNCTION OF THE PRODUCTS HEREIN SOLD.
Removal of the Sellers nameplate or any generic fan nameplate containing the fan serial number voids all warranties, either writ-
ten or implied. Failure to complete and document all the pre-startup and post startup checks and perform the suggested routine
maintenance checks voids all warranties, either written or implied.
LIMITATION OF LIABILITY:
Notice of any claim, including a claim for defect in material or workmanship, must be given to Seller in writing within 30 days after
receipt of the equipment or other products. Seller reserves the right to inspect any alleged defect at Purchaser’s facility before
any claim can be allowed and before adjustment, credit, allowance replacement or return will be authorized. See RETURNS
below. Seller’s liability with respect to such defects will be limited to the replacement, free of charge, of parts returned at
Purchaser’s expense F.O.B. Seller’s plant and found to be defective by the Seller.
IN NO EVENT WILL SELLER BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES,
WHETHER IN CONTACT, TORT, NEGLIGENCE, STRICT LIABILITY OR OTHERWISE, INCLUDING WITHOUT LIMITATION
DAMAGES FOR IN URY TO PERSONS OR PROPERTY, LOST PROFITS OR REVENUE, LOST SALES OR LOSS OF USE
OF ANY PRODUCT SOLD HEREUNDER. PURCHASER’S SOLE AND EXCLUSIVE REMEDY AGAINST SELLER WILL BE
THE REPLACEMENT OF DEFECTIVE PARTS AS PROVIDED HEREIN OR REFUND OF THE PURCHASE PRICE FOR
DEFECTIVE PRODUCTS, AT SELLER’S SOLE OPTION. SELLER’S LIABILITY ON ANY CLAIM, WHETHER IN CONTRACT,
TORT, NEGLIGENCE, STRICT LIABILITY OR OTHERWISE, FOR ANY LOSS OR DAMAGE ARISING OUT OF OR IN CON-
NECTION WITH PURCHASER’S ORDER OR THE PRODUCTS OR EQUIPMENT PURCHASED HEREUNDER, SHALL IN NO
CASE EXCEED THE PURCHASE PRICE OF THE EQUIPMENT GIVING RISE TO THE CLAIM.
RESPONSIBILITY:
It is the understanding of the Seller that Purchaser and/or User will use this equipment in conjunction with additional equipment
or accessories to comply with all Federal, State and local regulations. The Seller assumes no responsibility for the Purchaser’s
and/or User’s compliance with any Federal, State and local regulations.
RETURNS:
Cincinnati Fan & Ventilator Company assumes no responsibility for any material returned to our plant without our permission. An
RMA (Return Material Authorization) number must be obtained and clearly shown on the outside of the carton or crate and on a
packing slip. Any items returned must be shipped freight prepaid. Failure to comply will result in refusal of the shipment at our
receiving department.

OMM-11-0211-page 17
X. PARTS DRAWING:
Cincinnati Fan manufactures many models and arrangements with special variations. For that
reason, the maintenance manuals contained on our website do not include a parts drawing nor the
completed blower or fan specifications on page 1. For the parts drawing of all the standard
components and specifications for the specific blower or fan that you have, please contact our local
Cincinnati Fan sales office for your area.
You will need to give them the serial number shown on the blower or fan nameplate so they can
supply you the correct information.
Click on “Contact a Sales Rep” on our website for the name and contact information for our local
sales office for your area. www.cincinnatifan.com
PLEASE NOTE