A21_Operation_Manual.pdf

Downflo® II

DFT 2-8, 2-12, 2-16, 2-24, 2-36

DFT 3-12, 3-24, 3-26, 3-48, 3-60, 3-72,

DFT 4-16, 4-32, 4-48, 4-64, 4-80, 4-96, 4-112, 4-128

(Units Built After July 2003)

Installation and Operation Manual Installation, Operation, and Service Information

IOM AD3310701 (ENG)

Revision 8

English Master Language

This is the safety alert symbol. It is used to alert you to potential personal injury hazards.

Obey all safety messages that follow this symbol to avoid possible injury or death.

This manual is property of the owner. Leave with the collector when set-up and start-up are complete. Donaldson Company reserves the right to change design and specifications without prior notice.

Illustrations are for reference only as actual product may vary.

Donaldson Company, Inc.

Process owners/operators have important responsibilities relating to combustible hazards.

Process owners/operators must determine whether their process creates combustible dust, fume, or mist. If combustible dust, fume, or mist is generated, process owners/operators should at a minimum:

Comply with all applicable codes and standards. Among other considerations, current NFPA standards require owners/operators whose processes involve potentially combustible materials to have a current Hazard Analysis, which can serve as the foundation for their process hazard mitigation strategies.

Prevent all ignition sources from entering any dust collection equipment.

Design, select, and implement fire and explosion mitigation, suppression, and isolation strategies that are appropriate for the risks associated with their application.

Develop and implement maintenance work practices to maintain a safe operating environment, ensuring that combustible dust, fume, or mist does not accumulate within the plant.

Donaldson recommends process owners/operators consult with experts to insure each of these responsibilities are met.

As a manufacturer and supplier of Industrial Filtration Products, Donaldson can assist process owners/ operators in the selection of filtration technologies. However, process owners/operators retain all responsibility for the suitability of fire and explosion hazard mitigation, suppression, and isolation strategies.

Donaldson assumes no responsibility or liability for the suitability of any fire and/or explosion mitigation strategy, or any items incorporated into a collector as part of an owner/operators hazard mitigation strategy.

Improper operation of a dust control system may contribute to conditions in the work area or facility that could result in severe personal injury and product or property damage. Check that all collection equipment is properly selected and sized for the intended use.

DO NOT operate this equipment until you have read and understand the instruction warnings in the Installation and Operations Manual. For a replacement manual, contact Donaldson Torit.

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.

Model Number _____________________________ Serial Number ______________________________

Ship Date _________________________________ Installation Date _____________________________

Customer Name _______________________________________________________________________

Address _____________________________________________________________________________

Filter Type ____________________________________________________________________________

Accessories __________________________________________________________________________

Other ________________________________________________________________________________

Data Sheet

Downflo II, DFT 2-8 through 4-128 i

Magnehelic® and Photohelic® are registered trademarks of Dwyer Instruments, Inc.

DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.

WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION, used with the safety alert symbol, indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

NOTICE is used to address practices not related to personal injury that may result in damage to equipment.

Contents

Description Purpose and Intended Use Rating and Specification Information Operation Inspection on Arrival Installation Codes and Procedures Installation

Foundations or Support Framing Collector Location Site Selection

Rigging Instructions Hoisting Information

Typical Installation Standard Equipment

Module Assembly Field Assembly Yoke, Venturi, and Filter Installation Hopper Installation Leg Installation Provisional Anchor Bolt Recommendations Compressed Air Installation Electrical Wiring

Solid-State Timer Installation Solenoid Connection Timer and Solenoid Specifications

Preliminary Start-Up Check

Maintenance Information Operational Checklist Filter Removal and Installation Filter Removal Dust Disposal Compressed Air Components

Optional Equipment Fan Blower 55-Gallon Drum Pack Rotary Valve and Transition Magnehelic® Gauge Photohelic® Gauge Delta P Control Delta P Plus Control TBI and TRB Style Damper and Silencer Support Bracket Plenum Silencer, TRB Abrasion-Resistant Inlet Collar Platforms and Ladders Cold Climate Kit Explosion Vent Sprinkler

Troubleshooting Service Notes

Combustible materials such as buffing lint, paper, wood, metal dusts, weld fume, or flammable coolants or solvents represent potential fire and/or explosion hazards. Use special care when selecting, installing, and operating all dust, fume, or mist collection equipment when such combustible materials may be present in order to protect workers and property from serious injury or damage due to a fire and/or explosion.

Consult and comply with all National and Local Codes related to fire and/or explosion properties of combustible materials when determining the location and operation of all dust, fume, or mist collection equipment.

Standard Donaldson Torit equipment is not equipped with fire extinguishing or explosion protection systems.

Description

The Downflo II dust collector is a continuous-duty, modular collector with cartridge-style filters. The downward airflow design delivers high filtration efficiency while using less energy. Continuous-duty means no downtime. The filters are pulse-cleaned in sequence, one set at a time, without turning the unit off.

The modular design allows flexibility in system design and adapts easily to limited space areas. Each standard module is two or three filter rows wide by two, three, or four rows high by two filters deep.

Designed to increase the versatility of the unit, standard options include top or front inlets, covers, Bag Out, cold climate kits, steep-slope ledge-free hoppers, trough hoppers, and stationary service platforms.

Downflo II collectors are widely used on nuisance dust where the load to the collector is less than two grains per cubic foot. Some typical applications include abrasive blasting, grinding, mixing, blending, processing, pan coating, powder paint applications, sand handling, welding, and machining. Each application is different and selecting the correct cartridge filter for the application and type of dust collected is important. Contact Donaldson Torit for selection assistance.

• Fibrous dusts often benefit from a cartridge with an open-pleat design, such as Fibra-Web®.

• Operations involving high temperature and high humidity may require special attention. Temperature, moisture content, and chemistry issues may require custom collector design.

• Hygroscopic dust such as fertilizer, salt, and sugar should be handled under a controlled, low humidity environment.

• Flammable or explosive dust may require customized collector design options and special cartridges.

• Applications with high hydrocarbon or high oil content may require special treatment or filter media.

Purpose and Intended Use

Misuse or modification may result in severe personal injury and/or property damage.

Do not misuse or modify.

Collectors are rated for the following loads as calculated per relevant sections of the IBC 2009 code*:

Basic Wind Speed & Exposure ............90 mph, Exposure C Seismic Spectral Acceleration, S s ................................. 1.5 g

Seismic Spectral Acceleration, S ................................. 0.6 g

Installed Collector Base Elevation ...............................Grade Occupancy Category ............................................................. II

Compressed air, psig ..................................................... 90-100 Housing rating, inches water gauge ............................+/- 20 Control power ...............................................120-Volt 50/60 Hz

*If collector was supplied with a Record Drawing, the specifications on the drawing will supersede the standard specifications above.

Front DFT 2-Model

Front DFT 3-Model

Front DFT 4-Model

DFT 2-12 Front 3-wide models

DFT 3-18 Front 3-wide models

Typical Side View

Rating and Specification Information

Operation

During normal operation, dust-laden air enters the unit through the dirty-air inlet. Airflow is directed downward through the collector and heavier particulate falls directly into the hopper. The cartridges remove fine particulate and clean filtered air passes through the cartridges to the clean-air plenum and discharges through the clean-air outlet.

Filter cleaning is completed using pulse-jet technology.

A solenoid and diaphragm valve aligned to each row of filters provides the pulse cleaning. The cleaning sequence starts at the top filter row and continues down through each row. Remove, inspect, or change the cartridges from outside the unit by removing the filter access cover and sliding the filters out.

filter cartridges

ExtraLife™ filter cleaning system dirty-air inlet clean-air outlet diaphragm valve compressed-air supply

Normal Operation hopper

Filter Cleaning Operation

Unit Operation

Inspection on Arrival

1. Inspect collector upon delivery.

2. Report any damage to the delivery carrier.

3. Request a written inspection report from the Claims Inspector to substantiate any damage claim.

4. File claims with the delivery carrier.

5. Compare collector received with description of product ordered.

6. Report incomplete shipments to the delivery carrier and your Donaldson Torit representative.

7. Remove crates and shipping straps. Remove loose components and accessory packages before lifting collector from truck.

8. Check for hardware that may have loosened during shipping.

9. Use caution removing temporary covers.

Installation Codes and Procedures

Codes may regulate recirculating filtered air in your facility.

Consult with the appropriate authorities having jurisdiction to ensure compliance with all national and local codes regarding recirculating filtered air.

Safe and efficient operation of the collector depends on proper installation.

Authorities with jurisdiction should be consulted before installing to verify local codes and installation procedures. In the absence of such codes, install collector according to the National Electric Code, NFPA No. 70-latest edition and NFPA 91 (NFPA 654 if combustible dust is present).

A qualified installation and service agent must complete installation and service of this equipment.

All shipping materials, including shipping covers, must be removed from the collector prior to or during collector installation.

Failure to remove shipping materials from the 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 as component damage can occur.

All compressed air components must be sized to meet the system requirements of 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 poor collector performance.

Purge compressed air lines to remove debris before connecting to the collector’s compressed air manifold.

Installation

Use proper equipment and adopt all safety precautions needed for servicing equipment.

Electrical service or maintenance work must be performed by a qualified electrician and comply with all applicable national and local codes.

Turn power off and lock out electrical power sources before performing service or maintenance work.

Do not install in 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.

Site selection must account for wind, seismic zone, and other load conditions when selecting the location for collectors.

Codes may regulate acceptable locations for installing dust collectors. Consult with the appropriate authorities having jurisdiction to ensure compliance with all national and local codes regarding dust collector installation.

Collectors must be anchored in a manner consistent with local code requirements.

Anchors must be sufficient to support dead, live, seismic, and other anticipated loads.

Consult a qualified engineer for final selection of anchorage.

Collector Location

Donaldson Torit equipment is not designed to support site installed ducts, interconnecting piping, or electrical services. All ducts, piping, or electrical services must be adequately supported to prevent severe personal injury and/or property damage.

When hazardous conditions or materials are present, consult with local authorities for the proper location of the collector.

Dust collection equipment may reach peak sound pressure levels above 80 dB (A). Noise levels should be considered when selecting collector location.

Locate the collector to ensure easy access to electrical and compressed air connections, to simplify solids collection container handling and routine maintenance, and to ensure the straightest inlet and outlet ducts.

Foundations or Support Framing

Prepare the foundation or support framing in the selected location. Foundation or support framing must comply with local code requirements and may require engineering.

Foundation and support framing must be capable of supporting dead, live, wind, seismic and other applicable loads. Consult a qualified engineer for final selection of foundation or support framing.

Rigging Instructions

Suggested Tools & Equipment Clevis Pins and Clamps Lifting Slings Crane or Forklift Pipe Sealant Drift Pins Pipe Wrenches Drill and Drill Bits Screwdrivers End Wrenches Socket Wrenches Adjustable Wrench Spreader Bars Torque Wrench (inch/lbs, 9/16-in Socket)

The collector is suitable for either indoor or outdoor installations. Reference the Rating and Specification Information.

Portable collectors require special installation accommodations.

Note: Collectors with explosion vents are not available in portable configurations.

Site Selection

This collector can be located on a foundation or structural framing.

Provide clearance from heat sources and avoid any interference with utilities when selecting the location.

Hoisting Information

Failure to lift the collector correctly can result in severe personal injury and/or property damage.

Use appropriate lifting equipment and adopt all safety precautions needed for moving and handling the equipment.

A crane or forklift is recommended for unloading, assembly, and installation of the collector.

Location must be clear of all obstructions, such as utility lines or roof overhang.

Use all lifting points provided.

Use clevis connectors, not hooks, on lifting slings.

Use spreader bars to prevent damage to collector’s casing.

Check the Specification Control drawing for weight and dimensions of the collector and components to ensure adequate crane capacity.

Allow only qualified crane or forklift operators to lift the equipment.

Refer to applicable OSHA regulations and local codes when using cranes, forklifts, and other lifting equipment.

Lift collector and accessories separately and assemble after collector is in place.

Use drift pins to align holes in section flanges during assembly.

1. Stand hopper on the discharge end.

2. Apply sealant around the top flange of the hopper toward the inside edge of the bolt pattern.

3. Lift collector into position over the hopper and lower slowly

4. Use drift pins to align holes and secure with hardware provided.

5. Assemble legs and cross braces.

6. Lift unit and hopper assembly into position over legs and lower slowly

7. Fasten legs to unit and to foundation.

8. Lift assembled unit to location.

9. Support and level unit.

9. Tighten all hardware.

10. Remove crane.

Typical Installation

Detail A filter cartridge access cover

Standard Equipment

Standard equipment consists of modules, inlet deflectors, yokes, filters, hoppers, and legs. Single-module through six-module units are delivered with the inlet deflectors, yokes, and filters factory installed.

Module Assembly

Two cranes are required to lift and assemble modules.

1. Remove the protective cover from the end of each module.

2. Remove one column of access covers, filters, venturis, yokes, and deflector panels from the joint-side of each module. See Detail A.

3. Remove outlet cover from the bottom of the clean-air plenum and set aside.

4. Apply a generous amount of sealant to one module to create an airtight seal between the clean and dirty-air chambers as shown in Detail B.

5. Lift both modules into position using two cranes.

6. Use drift pins to align the bolt holes in the mating flanges.

7. Bolt the modules together using 3/8-16 x 1 1/4-in bolts, washers, and nuts as shown Details B, and C.

Do not tighten hardware at this time.

8. Check that all joints and flanges are flush and tighten hardware starting with the joint between the clean-and dirty-air plenums.

Field assembly of modules may be required due to truck capacity, crane capacity, or specific customer requirements. A detailed instruction drawing, shipped with each unit, provides specific assembly and lifting instructions.

If unit has been shipped with fully-assembled modules, skip to Hopper Installation.

Use proper equipment and adopt all safety precautions needed for servicing equipment.

Electrical service or maintenance work must be performed by a qualified electrician and comply with all applicable national and local codes.

Turn power off and lock out electrical power sources before performing service or maintenance work.

Do not install in 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 filter acces cover see Detail A clean-air outlet cover see Detail F clean-air plenum bolting, see Detail C inlet deflector sealant, see Detail B yoke installation, see Detail E yoke alignment, see Detail D

Module Assembly dirty-air plenum clean-air plenum sealant

Detail B

3/8-16 x 1 1/4-in bolt flat washer sealant module flange lock washer

All hardware 3/8-16-in unless otherwise specified module flange

3/8-16 hex nut flat washer

Detail C clean-air plenum outlet cover

5/16-in seal washer

5/16 x 3/4-in thread-forming screw

Detail E

Detail F

3/8-in hex nutventuri

3/8-in flat washer

3/8-in lock washer

3/8-in hex jam nut yoke shoulder filter cartridge panel yoke

1/4-in filter access

52.63-in

Detail D

Yoke, Venturi, and Filter Installation

Notes Installing yokes requires two people.

Place blocks under assembled modules during yoke and filter installation.

1. Thread a thin jam-nut on each of the yoke rod ends to the shoulder. See Detail D and E.

2. Start at the bottom access port and work upward.

Position the yoke as shown in Detail D. From the filter section, have one person hold the yoke in position while another person installs the venturi and hardware from the clean-air plenum. See Detail E.

Do not tighten hardware at this time.

3. Center the yoke from side-to-side horizontally and 1/4-in above center vertically. See Detail D. Adjust jam nut against the filter cartridge panel. Have one person hold the yoke in position while another person tightens the three hex nuts from the clean-air plenum. Repeat to install all yokes.

4. Slide the filter cartridge on the yoke gasket-end first.

Replace access cover and tighten securely by hand.

Repeat for all filter cartridges.

5. Replace the outlet cover on the bottom of the clean-air plenum. See Detail F.

single module spanning two portholes single module spanning three portholes dual module spanning four portholes steep-sided, single module spanning two portholes

Hopper Installation

Hopper Styles

3/8-16 x 1-in bolt flat washer flat washer lock washer

3/8-16 hex nut

3/8-16 x 1-in bolt flat washer

3/8-16 x 1-in bolt flat washer lock washer flat washer lock washer 3/8-16 hex nut

3/8-16 x 1-in bolt flat washer hopper access cover (four port hole only)

All hardware is 3/8-in unless otherwise noted.

Hopper Installation

There are four ledge-free hopper styles offered for the Downflo II. A single-module wide that spans two portholes; a single-module wide that spans three portholes; a taller, steeper, single-module wide module which spans two portholes, and a double-module wide spanning four portholes. All styles transition to a single, 10-inch square discharge.

1. Stand the hopper on the discharge end.

Note: Remove hopper access covers on double module hoppers if necessary.

2. Apply sealant around the hoppers top flange toward the inside of the bolt pattern.

3. Lift the collector and position over the hopper and lower slowly.

4. Use drift pins to align holes.

5. Secure collector to hopper using 3/8-16 x 1 1/4-in bolts, flat washers, and nuts. Tighten all hardware securely.

6. Replace all access covers and tighten securely.

Leg Positioning

2. Position and assemble legs and cross braces as shown in Leg and Cross Brace Assembly.

3. Lift the cabinet and hopper assembly into position over the legs and lower slowly.

Leg Installation

Anchors must comply with local code requirements and must be capable of supporting dead, live, wind, seismic, and other applicable loads.

Anchor sizes shown are provisional, as final anchor sizing will depend on jobsite load conditions, collector location, foundation/ framing design variables and local codes.

Consult a qualified engineer for final selection of suitable anchors.

Leg sets for standard collector sizes are shown in the Rating and Specification Information. Reference Typical Foundation Anchor and leg assembly drawing shipped with the collector prior to starting assembly.

1. Prepare the foundation or support framing in the selected location. Locate and install anchors.

Anchor should project a minimum of 1 3/4-in and account for nut, washer, base plate and shims/grout.

Embedment depth

Typical Foundation Anchor

Provisional Anchor Bolt Recommendations

1. Consider Hilti HIT-HY 200 Anchor System or equivalent. Quantity of anchor bolts should match the number of holes provided in the base plates.

2. Anchor diameter is typically 1/8-in less than baseplate hole diameter.

3. Corrosive environment or outdoor installation may require stainless steel anchors.

5-module DFT 3-60 and 4-80

7-module

DFT 4-112

8-module

DFT 4-128

6-module DFT 3-72 and 4-96

4-module DFT 3-48 and 4-64 single module

DFT 2-8, 3-12

and 4-16

DFT 2-12

and 3-18 dual module

DFT 3-24

and 4-32

DFT 2-16

and 2-24

3-module

DFT 3-36

and 4-48 DFT 2-36 hex nut flat washer cross brace leg flat washer

Gr 5 hex bolt cross brace leg flat washer

Gr 5 hex bolt flat washer hex nut hex nut lock washer flat washer flat washer

Gr 5 hex bolt

Leg and Cross Brace Assembly

4. Use drift pins to align the holes in the collector with the holes in the legs. Attach each leg with the hardware supplied. Do not tighten hardware at this time.

5. Use drift pins to align the holes in the cross braces to the back of the leg set. Attach using the hardware supplied. Do not tighten hardware at this time.

6. Recheck the position of the leg sets and cross braces.

7. Using a crane, lift the assembled unit onto the anchor bolts. Fasten each leg pad to the anchor bolts using flat washers, lock washers, and hex nuts provided by others. Do not tighten hardware at this time.

8. Level unit. Tighten all hardware on legs, cross braces, and foundation anchors.

9. Remove crane.

Compressed Air Installation

Turn compressed air supply OFF, bleed and lock out lines before performing service or maintenance work.

A safety exhaust valve should be used to isolate the compressed air supply. The safety exhaust valve should completely exhaust pressure in the collector manifolds when closed, should be capable of being interlocked with fire or explosion mitigation equipment and should include provisions to allow closed-position locking.

Do not set compressed-air pressure above 100-psig as component damage can occur.

All compressed air components must be sized to meet the system requirements of 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 poor collector performance.

Purge compressed-air lines to remove debris before connecting to the collector’s compressed-air manifold.

Electrical Wiring

Electrical installation, service, or maintenance work must be performed by a qualified electrician and comply with all applicable national and local codes.

Turn power off and lock out electrical power sources before performing service or maintenance work.

Do not install in classified hazardous atmospheres without an enclosure rated for the application.

All electrical wiring and connections, including electrical grounding, should be made in accordance with the National Electric Code (NFPA No. 70-latest edition).

Check local ordinances for additional requirements that apply.

The appropriate wiring schematic and electrical rating must be used. See collector’s rating plate for required voltage.

An electric disconnect switch having adequate amp capacity shall be installed in accordance with Part IX, Article 430 of the National Electrical Code (NFPA No.

70-latest edition). Check collector’s rating plate for voltage and amperage ratings.

Refer to the wiring diagram for the number of wires required for main power wiring and remote wiring.1. Remove the plastic pipe plug from the collector’s air manifold and connect the compressed-air supply lines. Use thread-sealing tape or pipe sealant on all compressed-air connections.

2. Install a customer-supplied shut-off valve, bleed-type regulator with gauge, filter, and automatic condensate valve in the compressed-air supply line.

3. Set compressed-air supply to 90-psig. The pulse-cleaning controls are factory set to clean one or more filters every 10-seconds during a cleaning cycle.

clean-air outlet* clean-air plenum diaphragm valve solenoid enclosure manifold air regulator* bleed-type air filter* automatic condensate valve* compressed-air supply line* solid-state timer blower motor starter* power supply disconnect switch* blower assembly*

Magnehelic gauge

Turn power off and lock out electrical power sources.

Turn compressed-air supply OFF and bleed lines before performing service or maintenance work.

*customer-supplied

Compressed Air and Component Installation

Solid-State Timer Installation

Electrical installation, service or maintenance work during installation must be performed by a qualified electrician and comply with all applicable national and local codes.

Turn power off and lock out electrical power sources before performing installation, service, or maintenance work.

Do not install in classified hazardous atmospheres without an enclosure rated for the application.

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 near or on the collector’s compressed-air manifold.

Wire the solenoids to the solid-state timer following the wiring diagram supplied with the collector. Filter life and cleaning operation will be affected if not wired correctly.

Timer and Solenoid Specifications

Power to the solid-state timer is supplied to Terminals L1 and L2, which are intended to operate in parallel with the fan starter’s low-voltage coil. On fan start-up, power is supplied to the timer and the preset OFF time is initiated. At the end of the OFF time, the timer energizes the corresponding solenoid valve to provide the ON time cleaning pulse for one diaphragm valve and then steps to the next until all filters have been cleaned.

To pulse when the fan is OFF, install a toggle switch as shown on the Solid-State Timer Wiring Diagram. When the toggle switch is ON, the timer receives power and energizes the solenoid valves’ pulse-cleaning operation even though the fan is turned OFF.

The solid-state timer is used to control the filter cleaning system. Available options include 3, 6, 10, 20, or 32-pin solenoid valve controls.

1. Using the wiring diagram supplied, wire the fan motor, fan-motor starter, solid-state timer, and solenoid valves. Use appropriate wire gauge for rated amp load as specified by local codes.

2. Plug the program lug into the pin that corresponds with the number of solenoid valves controlled for 3-10 PIN. For 20 and 32 PIN solenoid controls, set the switch positions on the DIP switch labeled LAST CHANNEL to the corresponding number of pulse valves using the chart printed on the timer board.

3. With power supply ON, check the operation of the timer and valves. The valves should open and close sequentially at factory set 10-second intervals.

4. If a gauge or similar device is used to control the solid-state timer, the jumper on the pressure switch portion of the timer should be removed. The solenoid valves pulse only when the differential pressure reaches the high-pressure setpoint. The valves will continue to pulse until the low-pressure setpoint is reached.

The solid-state timer voltage must match the voltage of the rating of the timer provided (typically 120 VAC, 240 VAC also available).

Do not mount the solid-state timer directly to the collector as mechanical vibration can damage the timer.

Solid-State Timer Typical Wiring Diagram

Fan Starter Control BoxDisconnect

1FU

2FU

3FU

208-230V 60 Hz/3Ph

IL1

IL2

IL3

1M 1OL 1T1

1T2

1T3

230V

115V

H1 H2H3 H4

X1 X2 stop start

1M

1M

1TGS

fan motor

OFF time ON time program pins program lug pressure switch timing logic power supply control logic

4FU, 3A

105 to 135 V 50-60 Hz solenoid valves

COM

L1

L2

L3

Disconnect, fuses, low voltage blower starter, and 1TGS switch are customer-supplied.

Use wiring diagram provided with unit

Wiring by others Wiring by factory

L1 L2 21

Input 105-135V/50-60Hz/1Ph

Output Solenoids The load is carried and turned ON and OFF by the 200 watt maximum-load-per-output solid-state switch.

Pulse ON Time Factory set at 100-milliseconds, or 1/10-second.

Do not adjust pulse ON time unless the proper test equipment is available. Too much or too little ON time can cause shortened filter life.

Pulse OFF Time Factory set at 10-seconds, adjustable from 1.5-sec minimum to maximum 30-seconds.

Operating Temperature Range -20° F to 130° F

Transient Voltage Protection 50 kW transient volts for 20-millisecond duration once every 20 seconds, 1% duty cycle.

Solenoid Valves 115-Volt at 19.7 watts each

Compressed-Air Set compressed-air supply at 90-psig. The timer is factory set to clean one filter or set of filters every 10-seconds.

Do not increase supply pressure above 100-psig as component damage can occur.

Instruct all personnel on safe use and maintenance procedures.

Electrical work during installation, service or maintenance must be performed by a qualified electrician and comply with all applicable national and local codes.

Turn power off and lock out electrical power sources before performing service or maintenance work.

Turn compressed air supply OFF, bleed and lock out lines before performing service or maintenance work.

Check that the collector is clear and free of all debris before starting.

Do not install in classified hazardous atmospheres without an enclosure rated for the application.

Optional fans over 600 lbs must be independently supported.

Preliminary Start-Up Check

1. Check all electrical connections for tightness and contact.

2. Check for proper rotation as noted on the fan and/or hopper dishcarge device housing.

To reverse rotation, single-phase power supply:

Follow manufacturer’s instructions on the motor’s nameplate.

To reverse rotation, three-phase power supply:

Switch any two leads on the motor junction box.

Do not interchange a power lead with the ground wire. Severe personal injury and/or property damage may result.

3. All access panels should be sealed and secure.

4. Check that the dust container is properly sealed and clamped.

5. Check that fan exhaust damper is set to the fully-closed position.

6. Check and remove all loose items in or near the inlet and outlet of the collector.

7. Check that all remote controls and solenoid enclosures (if applicable) are properly wired and all service switches are in the OFF position.

8. Check that all optional accessories are installed properly and secured.

9. Turn power ON at source.

10. Turn the compressed-air supply ON. Adjust pressure regulator for 90-100 psig.

11. Turn fan motor ON.

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 blower/fan rotation.

Stand clear of exhaust to avoid personal injury.

12. Adjust airflow with the exhaust damper.

Excess airflow can shorten filter life, cause electrical system failure and fan motor failure.

13. Turn powered hopper discharge devices ON.

Maintenance Information

Instruct all personnel on safe use and maintenance procedures.

Use proper equipment and adopt all safety precautions needed for servicing equipment.

Electrical service or maintenance work must be performed by a qualified electrician and comply with all applicable national and local codes.

Turn power off and lock out electrical power sources before performing service or maintenance work.

Do not install in 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..

Do not set compressed-air pressure above 100-psig as component damage can occur.

All compressed air components must be sized to meet the system requirements of 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 poor collector performance.

Purge compressed air lines to remove debris before connecting to the collector’s compressed air manifold.

Operational Checklist

1. Monitor the physical condition of the collector and repair or replace any damaged components.

Routine inspections will minimize downtime and maintain optimum system performance. This is particularly important on continuous-duty applications.

2. Periodically check the compressed air components and replace compressed air filters.

Drain moisture following the manufacturer’s instructions. With the compressed air supply ON, check the cleaning valves, solenoid valves, and tubing for leaks. Replace as necessary.

3. Monitor pressure drop across filters.

Abnormal changes in pressure drop may indicate a change in operating conditions and possibly a fault to be corrected. For example, prolonged lack of compressed air will cause an excess build-up of dust on the filters resulting in increased pressure drop.

Cleaning off-line with no flow usually restores the filters to normal pressure drop.

4. Monitor exhaust.

5. Monitor dust disposal.

Filter Removal and Installation

Use proper safety and protective equipment when removing contaminants and filters.

Dirty filters may be heavier than they appear.

Use care when removing filters to avoid personal injury and/or property damage.

Turn power off and lock out electrical power sources before performing service 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.

1. Slide the new filter cartridge onto each suspension yoke.

Insert the filter, gasket end first.

2. Wipe cover gaskets clean and replace covers.

Tighten securely by hand.

Inspect and replace any covers with damaged or missing gaskets. Failure to do so may result in leakage in the collector.

Tighten access covers securely by hand. Gaskets must be compressed to seal properly.

3. Turn electrical power and compressed air supply ON before starting collector.

Filter Installation

Dust Disposal

To avoid possible damage to the fan motor, maintain a seal below the collector if servicing the dust storage device while the fan is running.

1. Empty dust container(s) as necessary to minimize dust in the hopper.

2. If the optional 55-gallon drum attachment is used, empty when drum is 2/3 full.

3. If optional slide gate is used, close gate before servicing drum.

Sharp edge of slide gate may result in personal injury while closing the slide gate. Keep hands clear when operating the slide gate.

4. Check integrity of gasket under drum cover.

5. Reinstall drum and open gate (if applicable).

Compressed Air Components

1. Periodically check the compressed air components and replace damaged or worn components as necessary.

2. Drain moisture following the manufacturer’s instructions.

3. With the compressed-air supply ON, check the cleaning valves, solenoid valves, and tubing for leaks. Repair or replace as necessary.

1. Start at the top access port.

2. Remove access cover by turning knob counterclockwise.

3. Break the seal between the filter cartridge and the sealing surface.

4. Slowly rotate the cartridge 1/2-turn to remove dust that may have accumulated on the top of the filter.

5. Slide the filter out the access port along the suspension yoke.

6. Dispose of properly.

7. Clean the sealing surface.

Clean dust from gasket sealing area to ensure a positive filter gasket seal.

8. Check for an accumulation of dust in the storage area and empty as necessary.

Filter Removal yokeaccess cover filter cartridge insert gasket end first

Filter Removal and Installation

Electrical installation, service, or maintenance work must be performed by a qualified electrician and comply with all applicable national and local codes.

Turn power off and lock out electrical power sources before performing service or maintenance work.

Do not install in classified hazardous atmospheres without an enclosure rated for the application.

Mounting a fan blower on the side of a collector requires a side power adapter to support the weight of the fan blower.

Poorly installed fan blowers may separate from the collector resulting in personal injury and/or property damage.

1. Disconnect power supply.

2. Apply 1/4-in diameter rope-type sealant to the outside surface of the power adapter just outside the edge of the hole pattern.

3. Install the fan housing to the power adapter using the hardware supplied.

4. Install the motor and blower assembly to the fan housing using the original fan hardware and new sealant.

5. Connect power supply to the motor. Turn the fan motor ON then OFF to check motor rotation by referencing the rotation arrow on the blower.

To change rotation on three phase collectors, turn power supply OFF and switch any two leads on the output side of the fan motor starter.

Do not interchange a power lead with the ground wire. Severe personal injury and/or equipment damage may result.

Side Mount TBI or TRB Fan BlowersFan Blower

Failure to lift the fan correctly can result in severe personal injury and/or property damage.

Use appropriate lifting equipment and adopt all safety precautions needed for moving and handling the fan.

A crane or forklift is recommended for unloading, assembly, and installation of the fan.

Location must be clear of all obstructions, such as utility lines or roof overhang.

To avoid personal injury and/or damage to equipment, ensure fan blowers are properly attached to equipment.

The use of a damper or variable fan drive (VFD) is required to control airflow through the collector. Lack of a control damper or VFD will shorten filter life.

Optional Equipment

The collector can accept direct mounted fan blowers, Torit Backward Inclined (TBI) or Torit Radial Blade (TRB), to the top or side of the collector.

For complete information, see the most current version of the TBI or TRB Fan Installation, Operation and Maintenance manuals.

Side-Mount Fan Blower sealant sealant mounting spool fan case motor/wheel assembly

55-Gallon Drum Pack

The drum pack is designed to fit a customer-supplied, standard 55-gallon drum and provides easy access for dust removal and disposal. A flexible hose connects the drum cover to the hopper. Placing a pallet under the drum allows heavier materials to be moved quickly using a forklift or pallet jack. If a pallet is used, the length of flexible hose may need to be shortened.

Sharp edge of slide gate may result in personal injury while closing the slide gate. Keep hands clear when operating the slide gate.

With Slide Gate

1. Place the 1/8-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 55-gallon drum.

4. Use latches to secure the cover to the drum, if equipped.

5. Connect the flexible hose between the drum cover and slide gate. Secure with hose clamps.

Without Slide Gate

1. Place 1/4-in diameter rope-type sealant between the hopper flange and the drum cover mounting flange toward the inside edge of the bolt pattern.

2. Fasten using the bolts, washers, and nuts supplied.

3. Attach the drum cover to the 55-gallon drum.

4. Use latches to secure the cover to the drum, if equipped.

5. Connect the flexible hose between the drum cover and the adapter. Secure with hose clamps.

hopper flange drum cover optional latch customer-supplied 55-gallon drum hose clamp flexible hose

1/4-in diameter rope-type sealant

3/8-16 bolt flat washer 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-gallon drumhose clamp flexible hose

1/8-in gasket spacer

3/8-16 bolt flat washer lock washer 3/8-16 hex nut

55-Gallon Drum Pack with Slide Gate

3/8-16 bolt flat washer

1/4-in diameter rope-type sealant placed inside bolt pattern flat washer hex nut hopper flange transition hex nut flat washer

3/8-16 bolt flat washer rotary airlock

1/4-in diameter rope-type sealant placed inside bolt pattern

Transition and Rotary Valve Assembly

Rotating blades can cause serious injury.

Turn power off and lock out electrical source 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 operating.

Optional discharge devices may require independent support.

Discharge devices over 800 lbs. must be independently supported.

Rotary Valve and Transition

Rotary Valves are used to maintain a seal on the hopper outlet while material is discharged from the hopper. A transition allows a valve to be connected to the hopper discharge when there is a size difference between the hopper and the valve.

1/8-in NPT x 90° male elbowclean-air plenum pressure tap location 1/8-in NPT adapter

1/8-in NPT adapter plenum tap location 3/8-in flat washer

1/8-in NPT coupling mounting bracket

#6-32 x 1/4-in mounting screws support structure mounting surface

Magnehelic gauge high-pressure port low-pressure port two, 1/8-in NPT adapters plastic tubing two, 1/8-in NPT pipe plugs two, self-drilling screws

1/8-in NPT x 90° male elbow dirty-air plenum pressure tap location 3/8-in flat washer

1/8-in NPT adapter 1/8-in NPT x 90° elbow static pressure tee

Magnehelic Gauge Installation

Magnehelic® Gauge

The Magnehelic is a differential pressure gauge used to measure the pressure difference between the clean-air and dirty-air plenums and provides a visual display of filter change requirements. The high-pressure tap is located in the dirty-air plenum and the low-pressure tap is located in the clean-air plenum.

1. Choose a convenient, accessible location on or near the collector for mounting that provides the best visual advantage.

2. Plug the pressure ports on the back of the gauge using two, 1/8-in NPT pipe plugs supplied. Install two, 1/8-in NPT male adapters supplied with the gauge into the high- and low-pressure ports on the side of the gauges.

3. Attach the mounting bracket using three, #6-32 x 1/4-in screws supplied.

4. Mount the gauge and bracket assembly to the supporting structure using two, 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 located in the dirty-air plenum. Connect remaining tubing from the gauge’s low-pressure port to the fitting in the clean-air plenum. Additional tubing can be ordered from your representative.

6. Zero and maintain the gauge as directed in the manufacturer’s Operating and Maintenance Instructions provided.

Electrical installation, service, or maintenance work must be performed by a qualified electrician and comply with all applicable national and local codes.

Turn power off and lock out electrical power sources before performing service or maintenance work.

Do not install in classified hazardous atmospheres without an enclosure rated for the application.

The Photohelic combines the functions of a differential pressure gauge and a pressure-based switch. The gauge function measures the pressure difference between the clean-air and dirty-air plenums and provides a visual display of filter condition. The high-pressure tap is located in the dirty-air plenum and a low-pressure tap is located in the clean-air plenum. The pressure-based switch function provides high-pressure ON and low-pressure OFF control of the filter cleaning system.

1. Choose a convenient, accessible location on or near the collector for mounting that provides the best visual advantage.

2. Mount the gauge to the remote panel or door using the mounting ring, retaining ring, and four #6-32 x 1 1/4-in screws. Do not tighten screws. Connect two, 1/8-in NPT x 1/4-in OD male adapters to the gauge’s high- and low-pressure ports. 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 located on the timer board, if equipped. Using the 3/4-in conduit opening, wire the gauge as shown. Reassemble and fasten enclosure securely.

4. 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 located in the dirty-air plenum. Connect remaining tubing from the gauge’s low-pressure port to the fitting in the clean-air plenum. Additional tubing can be ordered from your representative.

5. Zero and maintain the gauge as directed in the manufacturer’s Operating and Maintenance Instructions provided.

6. To install the Photohelic Gauge mounted in a NEMA 4, Weatherproof Enclosure, follow Steps 4 and 5.

Photohelic gauge solenoid valves

Pressure Switch terminals neutral 110-V jumper wires supplied by customer timer board L1 L2 1 2 3 sol com

L2 L1

HI LO

C NO NC NC NO C

C NO NC NC NO C

Photohelic Gauge Wiring Diagram Photohelic Gauge in Optional NEMA 4 Weatherproof

Enclosure

Note:

For use with solid-state timer only. All parts, except the mounting bracket shown in the Photohelic Gauge Standard Installation drawing are included with the NEMA 4, Weatherproof Enclosure.

Photohelic® Gauge

1/8-in NPT x 90° male elbow 1/8-in NPT adapter clean-air plenum

1/8-in NPT coupling mounting bracket

Photohelic gauge plastic tubing high-pressure port low-pressure port

1/8-in NPT x 90° male elbow static pressure tee 1/8-in NPT x 90° elbow

1/8-in NPT adapter

1/8-in NPT adapter dirty-air plenum 3/8-in flat washer

3/8-in flat washer

#6-32 x 1/4-in mounting screws support structure mounting surface

Photohelic Gauge Installation

Delta P Control Display

Delta P Control

For complete information, see the most current version of the Delta P Installation, Operation, and Maintenance manual.

Description

The Delta P Controller monitors the differential pressure between the clean-air and dirty-air plenums, providing a visual display of the filter condition. When combined with a pulse timer, it manages the pressure drop by turning the cleaning mechanism On and Off at the chosen limits.

There are three (3) set points: High Pressure On, Low Pressure Off, and Alarm. The first two, High Pressure On and Low Pressure Off, control the filter cleaning system.

The third, Alarm, provides a relay output to activate an external alarm supplied by others.

Operation

Normal

The Delta P Controller monitors the pressure in the clean-air and dirty-air air plenums while the collector is running. The blower draws air 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) collectors of daPa.

Filter Cleaning

When the pressure drop across the filters reaches the High Pressure On setpoint, the controller closes an output relay allowing a timer to trigger the cleaning valves sequentially. When the controller senses that the pressure drop has decreased to the Low Pressure Off setpoint, the relay opens and the cleaning cycle stops.

This sequence continues as long as the collector is in use, maintaining the pressure drop within a narrow range.

Alarm

The Alarm setpoint is set to a higher setting than the High Pressure On setpoint used to start the filter cleaning cycle. It indicates situations when the cleaning system cannot reduce the pressure drop due to cleaning system failure, lack of compressed air, or the end of the filter’s useful life.