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Donaldson Company, Inc.

Improper operation of dust collectors and/or dust control systems may contribute to conditions in a work 

area or facility which could result in severe personal injury, and product or property damage. All dust 

collection equipment should be used only for its intended purpose and should be properly selected and sized 

for its intended use.
Process owners have important responsibilities relating to identifying and addressing potential hazards in 

their processes. When the potential for handling combustible dust exists within a process the process owner 

should include combustion hazards in their risk management activities and should comply with applicable 

codes and standards related to combustible dust.
Electrical installation must be performed by a qualified electrician.
This equipment is not designed to support site ducts, piping, or electrical services. All ducts, piping, or 

electrical services must be adequately supported to prevent injury and/or property damage.
Site selection must account for wind, seismic zone, and other load conditions.
Equipment may reach peak sound pressure levels above 80 dB (A). Noise levels should be considered when 

selecting collector location.

Combustible Dust Hazards 

Among other considerations, the current NFPA standards require owners whose processes involve potentially 

combustible materials to have a current Dust Hazard Analysis, which can serve as the foundation for their process 

hazard mitigation strategy. Mitigation may include but is not limited to:

•  Prevention of all ignition sources from entering any dust collection equipment.
•  Selection and implementation of fire and explosion mitigation, suppression, and isolation strategies 

appropriate for the risks in their process.

•  Development and use of work practices to maintain safe operating conditions, and to ensure combustible dust 

does not accumulate within their plant or process equipment.

Donaldson designs, manufactures, and sells industrial air filtration products for a wide variety of applications. Some 

applications may include processes or materials with inherent fire and explosion hazards. Donaldson is neither an 

expert nor a certified consultant in fire, spark, or explosion detection, suppression, or control. Donaldson does not 

provide engineering consulting services related to process or dust hazard analyses, or code and standard compliance. 

Complying with applicable codes and standards and managing the risks associated with the process or materials 

remains the responsibility of the process owner/operator. Donaldson may provide referrals to consultants, suppliers 

of equipment or services related to the detection and/or mitigation of sparks, fires and/or explosions, but Donaldson 

does not assume responsibility for any such referrals, nor does Donaldson assume any liability for the fitness of a 

mitigation strategy or product for a particular installation or application. The process owner’s final selection of dust 

collectors and risk mitigation strategies should be based on the outcome of a Dust Hazard / Process Hazard Analysis 

performed by the process owner. Although early engagement of a dust collector supplier provides helpful insights on 

the availability and features of various products, process owners should consult with a combustible dust expert and/or 

a process safety expert before making actual product and mitigation strategy selections.
Donaldson recommends that all industrial air filtration system designs be reviewed and approved by an expert 

consultant who is responsible for the integrity of the system design and compliance with applicable codes and 

standards. It is the process owner’s responsibility to understand the risks in their process and mitigate those risks in 

accordance with all applicable laws, regulations and standards, including those published by the NFPA. Donaldson 

also recommends that proper maintenance and housekeeping procedures and work practices be evaluated, 

developed, and followed to maintain any industrial air filtration products in safe operating condition.
Many factors beyond the control of Donaldson can affect the use and performance of Donaldson products in a 

particular application, including the conditions under which the product is used. Since these factors are uniquely 

within the user’s knowledge and control, it is essential the user evaluate the Donaldson products to determine whether 

the product is fit for the particular purpose and suitable for the user’s application. All products, product specifications, 

and data (airflow, capacity, dimensions, or availability) are subject to change without notice, and may vary by region or 

country.

Safety Communication

Summary of Contents for DFO 2-12

Page 1: ...on and Service Information IOM 9343601 ENG Revision 15 English Master Language This manual contains specific precautions related to worker safety The hazard alert image denotes safety related instruct...

Page 2: ...ipment This manual has been supplied to assist with the installation operation and maintenance for the collector purchased Please read the manual before installing operating or performing maintenance...

Page 3: ...nstallation 13 Electrical Wiring 13 Solid State Timer Installation 15 Solenoid Connection 15 Timer and Solenoid Specifications 15 Preliminary Start Up Check 17 Maintenance Information 18 Operational C...

Page 4: ...r control Donaldson does not provide engineering consulting services related to process or dust hazard analyses or code and standard compliance Complying with applicable codes and standards and managi...

Page 5: ...pical applications include abrasive blasting grinding pharmaceuticals powder paint applications sand handling and welding Each application is different and selecting the correct filter for the applica...

Page 6: ...The cleaning sequence starts at the top filter row and continues down through each module Remove inspect or change the cartridges from outside the collector by removing the filter access cover and sl...

Page 7: ...collector will compromise collector performance Inspect collector to ensure all hardware is properly installed and tight prior to operating collector Do not set compressed air pressure above 100 psig...

Page 8: ...t a qualified engineer for final selection of foundation or support framing The collector is suitable for either indoor or outdoor installations Reference the Rating and Specification Information Site...

Page 9: ...ift collector over leg and hopper assembly and lower slowly 8 Secure with bolts washers and nuts supplied 9 Remove crane 10 Apply sealant to hopper cabinet seam angle not to exceed 30 from vertical mi...

Page 10: ...classified hazardous atmospheres without an enclosure rated for the application Turn compressed air supply OFF bleed and lock out lines before performing service or maintenance work Field Assembly Mod...

Page 11: ...Downflo Oval DFO 2 8 to 4 128 8 inlet deflector plate see Detail E yoke see Detail F clean air plenum outlet cover see Detail H filter access cover see Detail A dirty air plenum Module Assembly...

Page 12: ...he clean air plenum See Detail H Do not tighten hardware at this time 4 Adjust jam nut against the filter cartridge panel Have one person hold the yoke in position as shown in Detail F while another p...

Page 13: ...in hex nut 3 8 x 1 1 4 in bolt 3 8 in flat washer inlet deflector panel Detail F yoke Detail G 3 8 in hex nut venturi 3 8 in flat washer 3 8 in lock washer 3 8 in hex jam nut yoke shoulder filter car...

Page 14: ...on over anchor bolts Secure each leg pad to the foundation anchor bolts with customer supplied flat washers and nuts Do not tighten hardware at this time Tighten all hardware before removing crane to...

Page 15: ...DFO 3 72 and 4 96 8 module DFO 4 128 9 module for larger collectors supplied with extended dirty air plenum and air management module 10 module for larger collectors supplied with extended dirty air p...

Page 16: ...f 90 100 psig supply pressure The compressed air supply must be oil and moisture free Contamination in the compressed air used to clean filters will result in poor cleaning cleaning valve failure or p...

Page 17: ...d type air filter automatic condensate valve air supply line 1 2 3 4 safety exhaust valve blower 1 solid state timer 2 blower motor starter 3 power supply disconnect switch 4 Magnehelic gauge customer...

Page 18: ...imer Solenoid Connection The collector is equipped with electric solenoid valves typically 120V that controls the pulse cleaning valves which in turn clean the filters Solenoid enclosures are mounted...

Page 19: ...to clean one or more filters every 10 seconds during a cleaning cycle Do not increase supply pressure above 100 psig as component damage can occur 1FU 2FU 3FU 208 230V 60 Hz 3Ph IL1 IL2 IL3 1M 1OL 1T...

Page 20: ...motor junction box Do not look into fan outlet to determine rotation View the fan rotation through the back of the motor Check that the exhaust plenum is free of tools or debris before checking blowe...

Page 21: ...ice or maintenance work Turn compressed air supply OFF bleed and lock out lines before performing service or maintenance work Do not operate with missing or damaged filters Filter Removal and Installa...

Page 22: ...ets clean and replace covers by attaching cover to yoke hook and firmly latching cover handle Replaced access covers carefully by securing them using the handle provided Keep fingers away from the sea...

Page 23: ...ver handle Optional and Bag In Bag Out Filter Access Cover Removal Top View Filter Access Cover Removal Side View latched unlatched removal access cover yoke latched unlatched yoke access cover hook a...

Page 24: ...flow through the collector Lack of a control damper or VFD will shorten filter life Optional Equipment blower and motor assembly sealant sealant side power adapter Side Mount Fan Blower Side MountTBI...

Page 25: ...acket For complete information see the most current version of the TBI or TRB Fan Installation Operation and Maintenance manual Typical Side and Top Mount Silencer and Damper Installation power pack p...

Page 26: ...8 in gasket spacer between the hopper flange and slide gate as shown 2 Attach the drum pack and slide gate to the hopper flange using 3 8 16 bolts washers and hex nuts 3 Attach the drum cover to the...

Page 27: ...pe sealant 3 8 16 bolt 3 8 in flat washer 3 8 in lock washer 3 8 16 hex nut adapter 55 Gallon Drum Pack without Slide Gate hopper flange drum cover slide gate optional latch customer supplied 55 gallo...

Page 28: ...Turn power off and lock out all power before performing service or maintenance work Keep hands feet and loose clothing away from both inlet and outlet openings to avoid injury or damage when valve is...

Page 29: ...wo self drilling screws 5 Thirty five feet of plastic tubing is supplied and must be cut in two sections Connect one section of tubing from the gauge s high pressure port to the pressure fitting locat...

Page 30: ...rts Tighten screws 3 On the back of the gauge remove four 6 32 x 5 16 in screws and plastic enclosure Set aside Add two jumper wires supplied by customer Remove the jumper from the pressure switch loc...

Page 31: ...x 1 4 in mounting screws mounting bracket static pressure tee 1 8 in NPT x 90 elbow 1 8 in NPT adapter 1 8 in NPT adapter 3 8 in flat washer dirty air plenum pressure tap location 1 8 in NPT adapter 1...

Page 32: ...through the filters creating a pressure drop The Delta P Controller measures the pressure drop and provides a visual display in inches water gauge or metric SI units of daPa Filter Cleaning When the p...

Page 33: ...e Delta P Plus Controller offers three filter cleaning options 1 Differential Pressure Cleaning DFF When the pressure drop across the filters reaches the Controller s High Pressure On setpoint the Con...

Page 34: ...ing 4 Install the top of the silencer and attach silencer to base using the supplied hardware 5 Loosen the wing nut on the damper and adjust from 30 to 50 closed collector sealant flat washer 3 8 16 x...

Page 35: ...side only Complete installation and assembly instructions are shipped with the platform Dropping the platform can result in personal injury or property damage Secure the platform assembly to the crane...

Page 36: ...dirty air plenum although front or side locations limit the area to 36 x 36 in Air Management Module The air management module is used in applications involving heavy grain loading large or abrasive...

Page 37: ...the basic kit plus a heat cable to deliver heat to the large pulse valves This kit is customer installed and detailed installation instructions are provided 1 Install the power connection kit on the h...

Page 38: ...ng of an explosion must be safely directed outdoors away from areas occupied by personnel to reduce risk of personal injury and or property damage The risk of personal injury and or property damage ca...

Page 39: ...operly Check airflow in duct Adjust damper control until proper airflow is achieved and the blower motor s amp draw is within the manufacturer s rated amps Electrical circuit overload Check that the p...

Page 40: ...and input power is present but output voltage to the solenoid is not replace the timer board See Solid State Timer Installation Solid State timer out of adjustment See Solid State Timer and Solid Sta...

Page 41: ...elta P arrow keys do not work Improper operation Press and hold one of the three setpoint keys to use arrow keys Programming keys disabled Remove the Program Disable jumper from Terminals 3 and 4 on T...

Page 42: ...____________ Collected Dust _________________________________________________________________________ Dust Properties Kst_______________Pmax______________MIE____________MEC_________________ Accessorie...

Page 43: ...e foregoing warranty on services Products manufactured by a third party Third Party Product may constitute contain be contained in incorporated into attached to or packaged together with the goods Buy...

Page 44: ...e Many factors beyond the control of Donaldson can affect the use and performance of Donaldson products in a particular application including the conditions under which the product is used Since these...

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