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Related Manuals for Cincinnati Fan Arrangement 9
Summary of Contents for Cincinnati Fan Arrangement 9
- Page 1 CINCINNATI FAN u s e r m a n u a l Arrangement 9 centrifugal fan Models SQBI - SQAF I N STA L L AT I O N - O P E R AT I O N - M A I N T E N A N C E...
- Page 2 Altitude ft Airstream Temperature °F Do Not Exceed this RPM Fan RPM Maximum Safe Fan RPM Motor Data: (This section is completed only if the motor was supplied by Cincinnati Fan) Voltage Phase Frame Size Enclosure Efficient If Motor is EXP, Class(es) and Group(s) are Manufacturer’s Model Number...
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Page 3: Table Of Contents
contents General ................................4 - Unpacking and Handling ......................... 4 - Safety Instructions and Accessories ....................4 Installation ............................... 6 - Vibration ............................... 6 - Mounting Methods ............................ 6 - Duct Work Connections .......................... 7 - Safety Guards ............................7 - Dampers and Valves .......................... -
Page 4: General
general Receiving 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. - Page 5 general Never operate a blower with a non-ducted inlet and/or discharge. If the Caution blower inlet and/or discharge is non-ducted, it is the users responsibility to install an inlet and/or discharge guard. Temperature Many blowers, blower components and all motors operate at temperatures that could burn someone if they come in contact with them.
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Page 6: Installation
installation Vibration Before any mounting method is selected, the user should be aware of the ef- fects vibration will have on the blower, motor and other parts. Improper blower installation can cause excessive vibration causing premature wheel and/or motor 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. -
Page 7: Duct Work Connections
Cincinnati Fan offers optional safety guards to keep your blower in compliance with OSHA safety regulations. These include inlet or discharge guards, shaft/ bearing guards and belt guards. Arrangement 9 blowers come with belt guards as standard. The base design on SQBI and SQAF models also acts as a shaft and bearing guard as long as the access holes are closed. -
Page 8: Dampers And Valves
installation Dampers and Valves (airflow control devices) If the blower is supplied with any type of air flow control device, it should be closed before initial startup of the blower to minimize overloading of the motor. Any airflow control device, with bearings, should be maintained in ac- cordance with the manufacturers instructions. -
Page 9: Blower Bearings
Cincinnati Fan or the sales office for your area. Timing belts should never be used on blowers. If you are replacing belts and/or sheaves, checking belt ten- sion or proper alignment refer to Figure 2 and Assembly Steps. - Page 10 installation The blower and motor shafts must be parallel and the sheaves must be in line with each other. See Figure 2. Figure 2 Shafts not parallel Shafts not aligned Proper Alignment Assembly 1. Remove belt guard and open shaft access holes. Remove the protective coating from the blower and motor shafts.
- Page 11 installation Any sheave with a taper-lock bushing will slide a little on the shaft as the Note 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 bush- ings to the correct torque values as indicated in Tables 1 and/or Table 2.
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Page 12: Electrical
installation 16. Turn off and lock out power to the motor, reinstall belt guard and shaft guard, unlock power to motor and run the blower. 17. After running the blower for 24 hours, turn off and lock out power to the motor. - Page 13 installation 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.
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Page 14: Maximum Speed And Speed Controllers
Fan or the 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”... -
Page 15: Initial Unit Startup
operation Pre-Startup and Post-Startup Check (Check blocks as each step is completed. Retain for you records) Failure to complete and document all the following Pre-Startup checks, Note Post-Startup checks and Vibration checks, could void all warranties. Pre-Startup Check completed by: Date Eight Hour Post-Startup Check completed by: Date... - Page 16 operation BLOWER SHEAVE Figure 5 Clockwise (CW) Rotation Counter-Clockwise (CCW) Rotation Pre-Startup Check completed by: Date Eight Hour Post-Startup Check completed by: Date Three-Day Post-Startup Check completed by: Date Apply power to the motor and let it come up to full speed. Turn off the power. Look and listen for any n n n n n n unusual noise or mechanical abnormality while the blower wheel is still spinning.
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Page 17: Vibration
operation Vibration The blower was balanced at the factory to comply with ANSI/AMCA Stan- dard 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 vibration analysis and vibration analysis equipment. - Page 18 operation Table 3 — Vibration Meter Probe Positions A—Pre-Startup Check completed by: Date B—Eight Hour Post-Startup Check completed by: Date C—Three-Day Post-Startup Check completed by: Date Alarm, vibration isolator mount (.65) Alarm, rigid mount (.40) Normal, vibration isolator mount (.35) Normal, rigid mount (.25) Figure 7 Vibration Severity Graph...
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Page 19: Routine Inspection And Maintenance
If the operating conditions of the blower are to be changed (speed, pressure, temperature, etc.) consult Cincinnati Fan or our sales office in your territory to determine if the unit will operate safely at the new conditions. -
Page 20: Wheel Balance
maintenance For high temperature applications that require high temperature grease in Note 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. -
Page 21: Vibration
Make sure you reinstall the wheel so the proper wheel-to-inlet clearance is maintained. Failure to do this will affect the blower’s airflow (CFM), and/or static pressure (SP) capabilities and ef- ficiency. Consult Cincinnati Fan or our local sales office for your area for assistance if necessary. Vibration As mentioned previously in this manual, excessive vibration can cause prema- ture motor failure that could lead to catastrophic failure of the blower. -
Page 22: Blower Shaft Or Bearing Replacement
Blower Shaft and 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. - Page 23 maintenance 15. When replacing the bearings, it is strongly recommended that the blower shaft also be replaced. If using the same blower shaft, file down all the setscrew marks on the shaft. 16. Install new bearings onto the new blower shaft or onto the original shaft. Be sure the bearing locking collars are facing each other and the set screws are in line with each other.
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Page 24: Dampers And Valves
maintenance 31. Turn the wheel by hand to determine if there is any binding of the shaft in the bearings, or if there is any interference between the back plate of the wheel and the blower housing. 32. Tighten the wheel set screw, over the key first, to the torque values in Table 1. -
Page 25: Ordering Replacement Parts
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. -
Page 26: Troubleshooting
maintenance 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. -
Page 27: Long Term Storage
maintenance Wheel rubbing inside of housing Worn or corroded blower wheel Accumulation of foreign material on blower wheel Loose mounting bolts, set screws or taper-lock hub bolts, bearings or sheaves Misalignment of blower bearings, sheaves or motor Bent motor shaft or blower shaft Excessive Noise Worn motor and/or blower bearings Motor out of balance... - Page 28 maintenance • Storage Maintenance: A periodic inspection and maintenance log, by date and action taken, Note Storage/Maintenance Schedule Log Example Action Date Checked Reinspect units to insure any protective devices used are functioning properly. Check for scratches in the finish which will allow corrosion or rust to form Rotate blower wheel a minimum of 10 full revolutions to keep the moor bearing grease from separating and drying.
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Page 29: Warranty, Limits Of Liability, Responsibility And Returns
Limited Warranty Cincinnati Fan and 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... - Page 30 Purchaser’s and/or User’s compliance with any Federal, State and local regulations. Returns Cincinnati Fan & Ventilator Company assumes no responsibility for any mate- rial 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.
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Page 31: Parts Drawing
Or, you can print a current version by going to our website at: cincinnatifan.com. 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 2. - Page 32 Centrifugal Fan U S E R M A N UA L SPX ENGINEERED AIR MOVEMENT CF-13-IOM-24 ISSUED 5/2024 ©2024 SPX ENGINEERED AIR MOVEMENT ALL RIGHTS RESERVED 7697 SNIDER ROAD In the interest of technological progress, all products are subject to design T E C H N O L O G I E S MASON, OH 45040 USA and/or material change without notice.
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