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OMM-23-1009-page 7

IV. INITIAL UNIT STARTUP

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-STARTUP OR POST-STARTUP CHECKS.

1.

■ ■

■ ■

If possible, 

CAREFULLY

spin either blower wheel by hand to ensure it rotates freely and no rubbing or clicking noise

is heard.

2.

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■ ■

Check all blower, foundation and duct work hardware to make sure it is tight.

3.

■ ■

■ ■

Check all blower wheel set screws to make sure they are tight per 

Table 1

on page 5.

4.

■ ■

■ ■

If the wheels have a taper-lock bushing, make sure the bolts are tightened per 

Table 2

on page 5.

5.

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■ ■

Make certain there is no foreign material in the blower or duct work that can become a projectile.

6.

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■ ■

Make sure any inspection doors in the duct work are securely bolted or locked.

7.

■ ■

■ ■

Ensure all electrical power components are properly sized and matched for your electrical system.

8.

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■ ■

Check that all required guards are properly secured.

9.

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■ ■

Any dampers should be fully opened and closed to make sure there is no binding or interference.

10.

■ ■

■ ■

If your blower is mounted on an elevated support structure, make sure the structure is welded at all the joint connec-
tions and the structure is properly braced to prevent “side sway”.

11.

■ ■

■ ■

Close any dampers to minimize load on motor. Especially on blowers with high temperature construction. 

Never 

sub-

ject 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 tempera-
ture 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 manufacturers instructions.

13.

■ ■

■ ■

Make sure the blower wheels are stationary prior to startup. 

Starting a blower with wheels that are 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 blow-
er is rotating in the wrong direction, reconnect the motor leads per the motor manufacturers wiring schematic. 

Blower

rotation is determined by viewing the blower from the motor side of the blower, NOT from the inlet side

. After

reconnecting the leads, repeat this step. 

See Fig. 2 below.

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 8, could void all warranties.

15.

■ ■

■ ■

Apply power to the blower motor and let it come up to full speed. 

Turn off the power.

Look 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.

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■ ■

Unlock power and start the blower.

17.

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■ ■

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 nameplate 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)

Fig. 2

Clockwise 

(CW) Rotation

Counter-Clockwise

(CCW) Rotation

Содержание LM

Страница 1: ... need to order any replacement parts special instructions may be required NOTICE 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 pages 12 and 13 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 ...

Страница 2: ...r 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 p...

Страница 3: ...dance with OSHA regulations Power to the blower should NOT be tuned 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 ass...

Страница 4: ...eters from the blower Any duct elbows located closer than 2 wheel diameters to the blower inlet or discharge WILL reduce the air performance and blower efficiency Any duct elbows near the blower discharge should be in the same rotational direction as the blower rotation Non Ducted Blower Inlet Any blower with no ducting on the inlet must have an inlet guard The blower should be located so the blow...

Страница 5: ...ay fuses or breakers should be used since the initial start up time for the blower motor although rare can be up to 10 seconds B Motors 1 DO NOT connect or operate a motor without reading the motor manufacturers instructions supplied with the blower The basic principle of motor maintenance is KEEP THE MOTOR CLEAN AND DRY This requires periodic inspections of the motor The frequency of the inspecti...

Страница 6: ... 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 al...

Страница 7: ... 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 tempera ture of 150 F 65 C or less should the power be turned off 12 Make sure the power source connections to the bl...

Страница 8: ...end as per Fig 3 below After you have taken your vibration readings write them down in the spaces below and keep for future comparison OMM 23 1009 page 8 If the blower is going to be conveying material it is the users responsibility to periodically turn the blower off and lock out the power The blower wheel should then be checked for material build up and or erosion If material has built up on any...

Страница 9: ... 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 e...

Страница 10: ...through the motor and damage the motor bearings 2 Grinding off material for cast aluminum wheels If you are grinding on the wheel to remove material be very careful not to grind too much in one area That could affect the structural integrity of the wheel 3 Forward curved wheels Model LM only also known as squirrel cage or multivane wheels These wheels have balancing clips attached to individual bl...

Страница 11: ...Y PARTS CORRECTLY VII TROUBLESHOOTING 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 PROBLEM CAUSE Excessive Vibration 1 Loose mounting bolts...

Страница 12: ...aintenance 2 The blower should be supported under each corner of its base to allow it to breath 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 Storage Maintenance A periodic inspection and maintenance log ...

Страница 13: ... insulation resistance b DO NOT lubricate the motor bearings during storage Motor bearings are packed with grease at the factory 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 AVAILABLE while the motor is in storage If the motor does not have space heaters storing it in a damp or humid...

Страница 14: ...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 INJURY TO PERSONS OR PROPERTY LOST PROFITS OR REVENUE LOST SALES OR...

Страница 15: ...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 ...

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