Table of Contents
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Installation,
Operation, and
Service Information
Patent Numbers:
6,387,162
6,090,173
6,488,746
5,562,746
6,364,921
6,368,388
Other Patents Pending
Throughout this manual
statements indicating
precautions necessary
to avoid equipment failure are
referenced in a Note. Statements
indicating potential hazards that
could result in personal injury or
property damage are referenced
in a Caution! box.
Installation
and Operation Manual
Downflo
Oval
®
DFO 2-4 and DFO 3-6
Model DFO 2-4
This manual is property of the owner. Leave with the unit when setup and
start-up are complete. Donaldson Company reserves the right to change design
and specifications without prior notice.
Model DFO 3-6
IOM 9603801
Revision 8
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Table of Contents
Related Manuals for Donaldson Torit DFO 2-4
Summary of Contents for Donaldson Torit DFO 2-4
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Page 1: Service Information
Installation and Operation Manual Installation, Downflo Oval ® Operation, and DFO 2-4 and DFO 3-6 Service Information Patent Numbers: 6,387,162 6,090,173 6,488,746 5,562,746 6,364,921 6,368,388 Other Patents Pending Throughout this manual statements indicating precautions necessary Model DFO 2-4 Model DFO 3-6 to avoid equipment failure are referenced in a Note. - Page 2 Donaldson Torit dust collection equipment is not equipped with fire extinguishing or explosion protection systems. • DO NOT allow sparks, cigarettes or other burning objects to enter the hood or duct of any dust or fume control equipment as these may initiate a fire or explosion.
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Page 3: Table Of Contents
This manual contains specific precautionary statements relative to worker safety. Read thoroughly and comply as directed. Discuss the use and application of this equipment with a Donaldson Torit representative. Instruct all personnel on safe use and maintenance procedures. Data Sheet... -
Page 4: Description
Donaldson Company, Inc. Description Purpose and Intended Use The Downflo Oval, Models DFO 2-4 and DFO 3-6 Downflo Oval collectors are widely used on are continuous-duty dust collectors with oval, nuisance dust where the load to the collector is less cartridge-style filters. -
Page 5: Rating And Specification Information
Downflo Oval, Model DFO 2-4 and DFO 3-6 Rating and Specification Information DFO 3-6 DFO 2-4 Side View DFO 2-4 and DFO 3-6 All Units (per IBC 2003 Specifications): Wind ........90 MPH Exposure C Seismic Spectral Acceleration, S 1.5 g ........ -
Page 6: Operation
• Donaldson Torit equipment is not equipped with • Use special care when selecting and fire extinguishing or explosion protection operating all collection equipment systems. -
Page 7: Inspection On Arrival
Downflo Oval, Model DFO 2-4 and DFO 3-6 Inspection on Arrival Installation 1. Inspect unit on delivery. Site Selection, Grade-Mounted Units 2. Report any damage to the delivery carrier. 1. The unit can be located on a reinforced concrete 3. Request a written inspection report from the foundation or rooftop. -
Page 8: Electrical Wiring
Donaldson Company, Inc. Electrical Wiring Rigging Instructions Suggested Tools & Equipment CAUTION! Clevis Pins and Clamps Lifting Slings • Electrical installation must be Crane or Forklift Pipe Sealant performed by a qualified electrician Drift Pins Pipe Wrenches and comply with all applicable Drill and Drill Bits Screwdrivers national and local codes. -
Page 9: Typical Installation
Downflo Oval, Model DFO 2-4 and DFO 3-6 Typical Installation 1. Lift cabinet. 2. Apply sealant to hopper flange. 3. Fasten hopper to cabinet. 4. Assemble legs and cross braces. 5. Lift unit and hopper into position over legs and lower slowly. -
Page 10: Standard Equipment
Donaldson Company, Inc. Standard Equipment Hopper Assembly Standard equipment consists of a collector cabinet, hopper, and legs. Basic assembly starts by attaching Assemble the standard or the optional steep-sided the hopper to the cabinet, then attaching the legs. A hopper following these instructions. detailed instruction drawing, shipped with each collector, provides specific assembly and lifting 1. -
Page 11: Leg Assembly
Downflo Oval, Model DFO 2-4 and DFO 3-6 Leg Assembly Leg sets are designed for standard height collectors 4. Recheck the position of the leg sets and cross braces. and are rated as shown in the Rating and Specification Information. Reference the drawing 5. -
Page 12: Compressed Air Installation
Donaldson Company, Inc. Compressed Air Installation CAUTION! Units Built Before November 2006 • 60-psig maximum operating pressure. • Air regulator required. manifold 1. Remove the 1-in pipe cap from one of the unit’s diaphragm two air manifolds and connect the compressed- valve air supply line. - Page 13 Downflo Oval, Model DFO 2-4 and DFO 3-6 blower fan diaphragm valve solenoid enclosure manifold power supply disconnect switch* 120-Volt blower motor starter* solid-state Magnehelic timer gauge* hopper solenoid electrical connection* air supply to manifold* compressed-air supply line* regulator* automatic...
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Page 14: Solid-State Timer Installation
Donaldson Company, Inc. Solid-State Timer Installation The solid-state timer is an electronic timer used to 2. Plug the program lug into the pin that control the filter cleaning system. corresponds with the number of solenoid valves controlled. CAUTION! 3. With power supply ON, check the operation of The solid-state timer requires a 105 to the solenoid valves. -
Page 15: Solenoid Connection
Downflo Oval, Model DFO 2-4 and DFO 3-6 Solenoid Connection Solenoid Valves The unit is equipped with 115-Volt solenoid valves that control the pulse-cleaning valves, which clean 115-Volt at 19.7 watts each the filters. Compressed-Air Set compressed-air supply at 60-psig. The timer is One of three types of solenoid enclosures, the weatherproof NEMA 4 with 1/8-in solenoid valves;... -
Page 16: Preliminary Start-Up Check
Donaldson Company, Inc. Preliminary Start-Up Check Service Information 1. Check all electrical connections for tightness and Operational Checklist contact. 1. Monitor overall performance of the collector. 2. Check for and remove all loose items in or near the inlet and outlet of the unit. 2. - Page 17 Downflo Oval, Model DFO 2-4 and DFO 3-6 This Page Intentionally Left Blank...
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Page 18: Filter Installation And Replacement
Donaldson Company, Inc. Filter Installation and Replacement 1. Slide the new filter cartridges onto each CAUTION! suspension yoke. • Use proper safety and protective Note: Insert the filter gasket end first. equipment when removing 2. Wipe cover gaskets clean and replace covers by contaminants and filters. - Page 19 Downflo Oval, Model DFO 2-4 and DFO 3-6 Filter Access Cover Removal (Side View) yoke yoke access cover latched filter cartridge access cover cover handle unlatched removal Optional and Bag-In/Bag-Out Filter Access Cover Removal (Top View) access cover yoke access cover...
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Page 20: Optional Equipment
Donaldson Company, Inc. Optional Equipment Power Pack Radial Blade Note: For a top-mounted TBI, install a spacer The 3 through 10 horsepower power packs are ring between the fan housing and the designed to fit on top or side of the unit. collector to provide the necessary 1. - Page 21 Downflo Oval, Model DFO 2-4 and DFO 3-6 Radial Blade Power Pak, Top or Side Mount motor side bolt inlet side blower outlet apply sealant between blower housing sections flat washer lock washer hex nut 1/4-in diameter rope-type sealant TBI with Spacer Ring and TBI with Spacer Spool for Explosion Vented Units...
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Page 22: Side-Mount Power Pack
Donaldson Company, Inc. Side-Mount Power Pack for Units Built After July 2003 4. Install the motor and blower assembly to the fan CAUTION! housing using the original hardware and caulk sealant. • Side mounting a power pack requires side power adapter to support the 5. -
Page 23: 55-Gallon Drum Pack
Downflo Oval, Model DFO 2-4 and DFO 3-6 55-Gallon Drum Pack 1. Place 1/4-in diameter rope-type sealant between The drum pack is designed to fit a customer- the hopper flange and the drum cover mounting supplied, standard 55-gallon drum and provides flange toward the inside edge of the bolt pattern. -
Page 24: 5-Gallon Pail Pack
Donaldson Company, Inc. 5-Gallon Pail Pack 3. Place pail beneath sealer mechanism. The pail pack includes a 5-gallon pail and provides easy access for dust removal and storage. 4. Tighten clamps on either side by pulling down. 1. Apply sealant to the hopper flange or the pail cover mounting plate flange toward the inside edge of the bolt pattern. - Page 25 Downflo Oval, Model DFO 2-4 and DFO 3-6 This Page Intentionally Left Blank...
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Page 26: Magnehelic Gauge
Donaldson Company, Inc. Magnehelic Gauge 3. Place a piece of wood behind the drill location in The Magnehelic is a differential pressure gauge used the dirty-air plenum to protect the filters from to measure the pressure difference between the clean- and dirty-air chambers and provides a visual damage by the drill bit. - Page 27 Downflo Oval, Model DFO 2-4 and DFO 3-6 6. Mount the gauge and bracket assembly to the supporting structure using two self-drilling screws. 7. 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...
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Page 28: Photohelic Gauge
Donaldson Company, Inc. Photohelic Gauge The Photohelic combines the functions of a jumper wires differential pressure gauge and a pressure-based supplied by customer switch. The gauge function measures the pressure difference between the clean- and dirty-air plenum and provides a visual display of filter condition. The Photohelic gauge high-pressure tap is located in the dirty-air plenum NO NC NC NO C... - Page 29 Downflo Oval, Model DFO 2-4 and DFO 3-6 4. Thirty-five feet of plastic tubing is supplied and 5. Zero and maintain the gauge as directed in the must be cut in two sections. Connect one section manufacturer’s Operating and Maintenance of tubing from the gauge’s high-pressure port to...
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Page 30: Delta P Control
Donaldson Company, Inc. Delta P Control Description For complete information, see the most current The Delta P Control monitors the differential version of the Delta P Installation, Operation, and pressure between the clean and dirty air plenums, providing a visual display of the filter condition. Maintenance manual. -
Page 31: Delta P Plus Control
Downflo Oval, Model DFO 2-4 and DFO 3-6 Delta P Plus Control drop to exceed the Low setpoint, and then for The Delta P Plus Control monitors the differential the pressure drop to approach zero. After the pressure between the clean and dirty air plenums, blower has come to a stop, the Delta P Plus providing a visual display of the filter condition. -
Page 32: Damper Installation
Donaldson Company, Inc. Damper Installation Backward Inclined A damper can be added to the power pack outlet to limit and regulate airflow when unit is in operation. 1. Apply sealant around the inside edge of the bolt Radial Blade pattern on the power pack outlet. 1. -
Page 33: Plenum Silencer
Downflo Oval, Model DFO 2-4 and DFO 3-6 Plenum Silencer Radial Blade and Backward Inclined 1. Apply 1/4-in diameter rope-type sealant towards chamber the outside edge of the bolt pattern on the clean- silencer air outlet. 2. Position the silencer mounting base aligning the... -
Page 34: Hepa Or Ashrae Afterfilter Installation
Donaldson Company, Inc. HEPA or ASHRAE Afterfilter Installation 6. Apply sealant to the inside perimeter of the The afterfilter plenum is mounted on top of the unit mounting base. Install the plenum to the and the blower is positioned inside the plenum. mounting base using self-threading bolts with 1. -
Page 35: Abrasion-Resistant Inlet Collar
Downflo Oval, Model DFO 2-4 and DFO 3-6 Abrasion-Resistant Inlet Collar 1. Remove the unit’s front cover plate. Remove excess sealant from opening. 2. Apply 1/4-in sealant around the opening toward the inside edge of the bolt pattern. 3. Align the holes on the inlet collar with the holes in the unit and secure using 3/8-16 x 1-in bolts and flat washers supplied. -
Page 36: Cold Climate Kit
Donaldson Company, Inc. Cold Climate Kit A cold climate kit provides heat to the pulse valves 2. Start with the upper right-hand valve, wrap heat to prevent cold weather freeze up. The basic kit, for cable around the valve. Pull heat cable tight. use in applications that have a moderate of moisture Note: Double wrap between the valve’s in the compressed-air supply, consists of a small... -
Page 37: Explosion Vents
Downflo Oval, Model DFO 2-4 and DFO 3-6 Explosion Vents Sprinkler Installation CAUTION! CAUTION! • Personal injury or property damage Sprinkler systems place a large quantity can result from material discharge of water in the dust collector when during venting. -
Page 38: Troubleshooting
Donaldson Company, Inc. Troubleshooting i f i s ' r a l i l l a . t l s - r l l a , t r t l i l l a l l a i l s . - Page 39 Downflo Oval, Model DFO 2-4 and DFO 3-6 c i f f r i l l a l l a . y l t c i l a i . s i t l i e t l t l i...
- Page 40 Donaldson Company, Inc. Troubleshooting i l a e l l l a i i t l l c - g i l . y l t l i e t l...
- Page 41 Downflo Oval, Model DFO 2-4 and DFO 3-6 g i l . s l i t c s l i g i l i t c . s l i t l l l i e l f...
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Page 42: Service Notes
Donaldson Company, Inc. Service Notes i v r... -
Page 44: Warranty
IN THIS PARAGRAPH AND ALL OTHER WARRANTIES INCLUDING MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WHETHER EXPRESS OR IMPLIED ARE HEREBY EXPRESSLY EXCLUDED AND DISCLAIMED. Parts and Service For genuine Donaldson Torit replacement filters and parts, call the Parts Express Line 800-365-1331 USA 800-343-3639 within Mexico www.donaldsontorit.com...
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