background image

OMM-14-0509-page 10

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

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. 

Summary of Contents for DDF

Page 1: ...location FAN SERIAL NUMBER ________________________ MFG DATE ____________________ NOTE The serial number above is a required reference for any assistance It is stamped on the fan nameplate FAN SPECIFICATIONS Model ________ Wheel Size and Type ___________________ FAN PERFORMANCE DATA If entered on order CFM ________ SP ________ Inches of Water Gauge Motor BHP ________ Density ________ Altitude ____...

Page 2: ...tices Verify that all lifting equipment is in good operating condition and has the proper lifting capacity The fan should be lifted using well padded chains cables or lifting straps with spreader bars Some fan models have lifting eye locations provided in the fan base NEVER lift the fan by the motor shaft motor eye bolt or any other part of the fan assembly that could cause distortion of the fan a...

Page 3: ... or disconnected The propeller should be carefully secured to prevent any rotational turning BEFORE working on any parts of the fan 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 fan motor and other parts Improper fan installation can cause excessive vi...

Page 4: ...tch the flanges on the DDF fan To minimize any leakage it is recommended that some type of caulking be used between the fan flange and the machine C Safety Guards Cincinnati Fan offers guards as optional to keep your fan in compliance with OSHA safety regulations These include inlet or discharge guards It is the responsibility of the user to make sure this fan meets all local state and OSHA safety...

Page 5: ...ase fittings should be lubricated in accordance with the motor manufacturers recommenda tions Lubrication frequency depends on the motor horsepower speed and service BE SURE you use compatible grease and DO NOT over grease 4 Location On Model DDF fans the motor is in the airstream The standard motor is a Totally Enclosed type motor which is suitable in a clean dry airstream below 104 F 40 C If the...

Page 6: ...te attached to the motor The Class Group and T Code the motor is designed for must also be listed 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 Fan Speed and Motor ...

Page 7: ...secured 9 Any dampers or shutters should be fully opened and closed to make sure there is no binding or interference 10 If your fan is mounted on an elevated support structure make sure the structure is welded at all the joint connections and the structure is properly braced to prevent any side sway 11 Make sure the propeller is stationary prior to startup Starting a fan with a prop that is rotati...

Page 8: ...welder directly to the propeller Otherwise the welding current will likely pass through the motor and damage the motor bearings 2 Grinding off material for cast aluminum propellers If you are grinding on the prop to remove material be very careful not to grind too much in one area That could affect the structural integrity of the prop D Vibration As mentioned previously in this manual excessive vi...

Page 9: ...w or pressure measuring equipment hoods controls special coat ings silencers expansion joints flexible connectors and filters 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 mis use accident or any s...

Page 10: ...lowed Failure to follow proper procedures can cause property damage severe bodily injury and death DANGER 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 ca...

Page 11: ... For specific storage instructions for the actual motor and any accessory parts that were supplied refer to the manufacturer s instructions VIII LONG TERM STORAGE INSTRUCTIONS Storage exceeding 30 days after receipt of equipment NOTE Failure to adhere to these instructions voids all warranties in their entirety 1 Storage site selection a Level well drained firm surface in clean dry and warm locati...

Page 12: ...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...

Reviews: