installation and operation manualused for light lubrication and generally creates mist greater than...

Installationand Operation Manual

WSO Mist CollectorMachine-MountableModels WSO 10, 15, and 20

Installation,Operation, andService Information

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Donaldson Company, Inc.

2

Caution!Application of Mist Control Equipment• Combustible materials such as buffing lint, rouge, aluminum and steel dust, weld fume, or

flammable solvents represent fire or explosion hazards. Use special care when selecting andoperating all mist collection equipment when combustible materials are present to protectworkers and property from damage due to fire and/or explosion. Consult and comply withNational and Local Codes relating to fire or explosion, and all other appropriate codeswhen determining the location and operation of mist collection equipment.

• When combustible materials are present, consult with an installer of fire extinguishingsystems familiar with these types of fire hazards and local fire codes for recommendationsand installation of fire extinguishing and explosion protection systems. Donaldson Dustand Mist Collection equipment are not equipped with fire extinguishing or explosionprotection systems.

• DO NOT allow sparks, cigarettes, or other burning objects to enter the hood or duct ofany mist control equipment as these may initiate a fire or explosion.

• For optimum collector performance, use only Donaldson replacement parts.

CAUTION!Improper operation of a mist control system may contribute to conditions in the work area orfacility that could result in severe personal injury and product or property damage. Check that allcollection equipment is properly selected and sized for the intended use.

WSO 10, 15, and 20

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Contents

Caution Statements................................................2Data Sheet .............................................................3Description ............................................................4Purpose and Intended Use ....................................4Operation ..............................................................5Inspection on Arrival .............................................6Installation Codes and Procedures.........................6Installation.............................................................6

Site Selection, Grade-Mounted Units ............6Site Selection, Ceiling-Mounted Units...........7

Unit Location ........................................................7Electrical Wiring ....................................................8Rigging Instructions...............................................8

Suggested Tools and Equipment....................8Hoisting Information ....................................8

Standard Equipment ............................................10General Installation ....................................10Flush Mount Installation ............................12Flanged Inlet Hopper Installation ...............12Ceiling Mount Installation..........................13Machine Center Mount Installation............14

Collector Stand Installation ........................16Floor Mount Stand Installation ..................18Inlet Hopper with Flex-Duct Installation ....19P-Trap Installation ......................................20Electrical Connection..................................21Motor Starter Control Box .........................21

Optional Equipment ............................................22HEPA/95% DOP Filter ...............................22Retrofit Kit Field Installation......................22Latch and Afterfilter Installation ................22Afterfilter Pressure Gauge Installation ........23Sprinkler Installation ..................................24Drain Collection Container.........................25

Preliminary Start-Up Check .................................26Service Information .............................................26

Operational Checklist .................................26Filter Cleaning and Replacement ................28Primary Filter Replacement.........................28Final Filter Replacement .............................30P-Trap Service ............................................31P-Trap with Y Strainer Service....................31Drain Collection Container.........................32

Troubleshooting...................................................33Service Notes .......................................................35Warranty .............................................................40

This manual contains specificprecautionary statements relative toworker safety. Read thoroughly andcomply as directed. Discuss the useand application of this equipment with aDonaldson representative. Instruct allpersonnel on safe use and maintenanceprocedures.

Model Number________________________________________________ Serial Number__________________________________________________

Ship Date ______________________________________________________ Installation Date ______________________________________________

Customer Name ____________________________________________________________________________________________________________________

Address______________________________________________________________________________________________________________________

______________________________________________________________________________________________________________________

Filter Type______________________________________________________________________________________________________________________

Accessories______________________________________________________________________________________________________________________

Other______________________________________________________________________________________________________________________

Data Sheet

Minihelic® is a registered trademark of Dwyer Instruments, Inc.


4

CAUTION!• Misuse or modification of this

equipment may result in personalinjury.

• Do not misuse or modify.

Description

Designed for versatility, the WSO (Water, Smoke,and Oil) mist collector is specifically engineered forwater-soluble, smoke, and oil-based mistapplications. WSO mist collector, Machine-Mountable Models WSO 10, 15, and 20 collectairborne mist such as oil, water-soluble, semi-synthetic and synthetic coolant from machiningoperations. Two stages of filtration, plus anoptional HEPA or 95% DOP filter, provide acleaner, healthier work environment as well as amore cost effective means of mist collection. Withairflow capacities up to 1200 cfm for the WSO 10,15, and 20, the WSO is a strategic component tomeeting industrial and government air-qualitystandards. The high efficiency filter cartridges allowair and coolants to be recycled.

Designed to increase the versatility of the unit, avariety of filter media specifically designed for mistcollection is a standard offering on the product line.The WSO model number (10, 15, or 20) indicatesthe height of the primary filter in inches for thatparticular model. For examples, the WSO 15contains a 15 inch tall primary filter. The primaryfilter is uniquely designed for either water-basedcoolants, straight oils, or thermally-generatedsmoky applications. Standard options include draincollection containers, P-traps, adjustable floormounting stands, and afterfilters.

The WSO machine-mountable unit is powered by ablower and motor mounted in the filter cabinet.

Purpose and Intended Use

Airborne mist is small droplets of metalworkingfluids suspended in the air. Metalworking fluidsinclude straight oils, water-soluble coolants, semi-synthetic and synthetic coolants. These fluidsperform a variety of functions such as lubricating orcooling the part or the tool, flushing chips awayfrom the part, and suppressing dust and smoke.

Mist is created in two ways: mechanical action orthermal effects. Mechanical action involves coolantused for light lubrication and generally creates mistgreater than one micron in size. Thermal effectsoccur when heat vaporizes the coolant, the vaporcools and recondenses into a mist. Thermal effectscreate mist from 0.01 to 1 micron in size. Othercontaminants, such as dust from the part or thetool or smoke from the vaporization of the oil orcoolant are also generated when usingmetalworking fluids.

The WSO mist collector is not designed to handlewater mist alone. There should be some type of oilcontent to allow coalescing since water vapor willsimply pass through the filters. The extremes ofvery heavy oil and light, thin oil should be avoided.Very heavy oil, similar to tar consistency, will notdrain while very light, thin oil, similar to paintthinner consistency, may evaporate.

WSO 10, 15, and 20

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primary filter cartridge

clean-air outlet

blower and motor

coalescedlarge droplets

first-stage filter

dirty-air inlet

clean-air plenum

P-trap (drain)

optional afterfilter

Unit Operation, WSO 15 shown

Operation

During normal operation, contaminated air entersthe unit through the dirty-air inlet on the bottom ofthe unit. The incoming air slows, causing large mistdroplets and particles to fall out of the air stream.The air passes through a reusable first-stage filterdesigned to collect and coalesce large droplets andparticles.

The primary stage of filtration is the pleated filtercartridge specifically designed to collect, coalesce,and drain fine mist. As the mist coalesce, thedroplets are big enough to run down the cartridgeand drain back into the collector. The droplets willdrain on both the inside and outside of thecartridge. Liquid that collects on the inside of thecartridge drains through the bottom portion of theporous media and into the hopper. Clean, mist-freeair exits the cartridge and discharges through thetop of the collector.


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CAUTION!OSHA may have requirements regardingrecirculating filtered air in your facility.Consult with the appropriate localauthorities to ensure compliance with allcodes regarding recirculating filtered air.

Inspection on Arrival

1. Inspect unit on delivery.

2. Report any damage to the delivery carrier.

3. Request a written inspection report from theClaims Inspector to substantiate claim.

4. File claims with the delivery carrier.

5. Compare unit received with description ofproduct ordered.

6. Report incomplete shipments to the deliverycarrier and your Donaldson representative.

7. Remove crates and shipping straps. Removeloose components and accessory packagesbefore lifting unit from truck.

Installation Codes and Procedures

Installation

Site Selection, Grade-Mounted Units

1. The unit can be located on a reinforced concretefoundation.

2. Provide clearance from heat sources andinterference with utilities when selecting thelocation.

3. Prepare the foundation in the selected location.Install anchor bolts to extend a minimum of 11/2-inches above foundation unless otherwiseindicated on the Specification Control drawing.

4. Locate the collector to ensure the shortest andstraightest inlet- and outlet-duct length, easyaccess to electrical connections, and routinemaintenance.

1. Safe and efficient operation of the unit dependson proper installation.

2. Authorities with jurisdiction should beconsulted before installing to verify local codesand installation procedures. In the absence ofsuch codes, install unit according to theNational Electric Code, NFPA No. 70-latestedition.

3. A qualified installation and service agent mustcomplete installation and service of thisequipment.

4. All shipping materials, including shippingcovers, must be removed from the unit prior to,or during unit installation.

Note: Failure to remove shipping materials from the unit will compromise unit performance.

CAUTION!Ensure weight of oil-laden unit plus weightof required materials and equipment willbe adequately supported. Failure tocomply may result in personal injuryand/or property damage.

WSO 10, 15, and 20

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CAUTION!• Combustible materials such as buffing lint, paper, wood, aluminum or steel dust, weld fume,

or flammable solvents represent fire or explosion hazards.

• Use special care when selecting and operating all collection equipment when combustiblematerials are present to protect workers and property from damage due to fire and/orexplosion.

• Consult and comply with all national and local codes relating to fire or explosion, and allother appropriate codes when determining the location and operation of mist collectionequipment.

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

Site Selection, Ceiling-Mounted Units:

1. The unit can be suspended or hung fromoverhead supports. The supports must beadequate to carry the live load of the unit andinstallation performed to reduce sway orvibration to the unit. The dry unit weight isshown on the specification control drawingshipped with the unit.

2. The live load will include the weight of allancillary hardware attached to the mistcollector, as well as the weight of the mist-laden, wet filters. Consult the coolant MSDS forthe specific gravity of the coolant to estimatethe weight of the mist-laden, wet filters.

3. Provide clearance from heat sources andinterference with utilities when selecting thelocation for suspended units.


Unit Location

1. When hazardous conditions or materials arepresent, consult with local authorities for theproper location of the collector.

2. Foundation or overhead support must be sizedto accommodate the entire weight of the unit,plus the weight of the collected material, piping,and ductwork.


CAUTION!Donaldson equipment is not designed tosupport site-installed ducts,interconnecting piping, or electricalservices. All ducts, piping, or electricalservices supplied by others must beadequately supported to prevent severepersonal injury and/or property damage.


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CAUTION!• Failure to lift the collector correctly

can result in severe personal injuryand/or property damage.

• Use appropriate lifting equipmentand adopt all safety precautionsneeded for moving and handling theequipment.

• A crane or forklift is recommendedfor unloading, assembly, andinstallation of the collector.

• Location must be clear of allobstructions, such as utility lines orroof overhang.

Electrical Wiring

CAUTION!• Electrical installation must be

performed by a qualified electricianand comply with all applicablenational and local codes.

• Lock out electrical power sourcesbefore performing service ormaintenance work.

• Do not install in classified hazardousatmospheres without an enclosurerated for the application.

The only component requiring electrical power isthe blower motor.

1. All electrical wiring and connections, includingelectrical grounding, should be made inaccordance with the National Electric Code,NFPA No. 70-latest edition.

2. Check local ordinances for additionalrequirements that apply.

3. The appropriate wiring schematic and electricalrating must be used. See unit’s rating plate forrequired voltage.

4. An electric disconnect switch having adequateamp capacity should be installed in accordancewith Part IX, Article 430 of the NationalElectrical Code, NFPA No. 70-latest edition.Check unit’s rating plate for voltage andamperage ratings.

5. Refer to the wiring diagram for the number ofwires required for main power wiring andremote wiring.

Rigging Instructions

Suggested Tools & Equipment

Crane or Forklift Pipe WrenchesSlings, Spreader Bars, Socket Wrenchesand Clevis Pins End WrenchesDrift Pins Large Crescent WrenchClamps Drill and Drill BitsScrewdrivers Pipe Sealant

Hoisting Information

1. Use all lifting points provided.

2. Use clevis connectors, not hooks, on liftingslings.

3. Use spreader bars to prevent damage to units’casing. Refer to the Spreader Bar Lifting Detailin the WSO 20 Floor Mount Stand InstallationSection.

4. Check the Specification Control drawing forweight and dimensions of the unit,subassemblies, and components to ensureadequate crane capacity.

5. Allow only qualified crane operators to lift theequipment.

6. Refer to applicable OSHA regulations and localcodes when using cranes, forklifts, and otherlifting equipment.

7. Lift unit and accessories separately, andassemble after unit is in place.

WSO 10, 15, and 20

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This Page Intentionally Left Blank


10

Standard Equipment

General Installation

1. Apply a generous amount of sealant wheninstalling attachments.

2. Position the collector above the mist-capturezone. See Collector Positioning.

3. Do not allow a fluid trap to form when usingflexible duct. See Flex-Duct Positioning.

4. On enclosed-machine installations, mount theunit as far from the mist throw zone as possibleand away from the primary access door tomaximize filter life and provide effective mistcontainment. See Enclosed-Machine Installationillustration.

5. On open-machine installations, position theunit's pick-up hood a minimum of 12-in fromthe mist source. Avoid mounting the pick-uphood too close to the mist source of an openmachine such as a wet surface grinder. Installingtoo close can shorten filter life as the unit willcollect large droplets and particulate instead ofmist. See Open Machine Installation.

machinecenter

Correct

Incorrect

machinecenterfluid trap

Flex-Duct Positioning, WSO 15 shown

machine center

Correct Incorrect

machine center

Collector Positioning, WSO 15 shown

WSO 10, 15, and 20

11

Correct Location

Incorrect Location

large dropletsand particulateenter pick-uphood

Note: WSO collector not shown.Collector is in a remote location and connected with ducting.

Enclosed Machine Installation, WSO 15 shown

Open Machine Installation


12

Flush Mount Installation

The flush mount option is for installing a collectoron a machine center that has a large flatunobstructed top surface.

1. Open the units access door and remove theprimary and first stage filters.

2. Remove the filter retention system.

3. Layout and drill bolt hole pattern into the topof machine center (refer to Specification Controldrawing for bolt size and pattern).

Note: Alternative option is to trace bolt holepattern directly onto machine center.

4. Cut opening into machine center and drillmounting holes.

5. Apply generous amounts of sealant to theoutside perimeter of the bolt pattern on themachine center.

6. Carefully lift unit into position over themachine center and lower into position.

7. Install and tighten fasteners into every hole.

8. Install filter retention system and filters.

sealant

bolt

Flush Mount Installation, WSO 15 shown

Flanged Inlet Hopper Installation

This flanged inlet hopper option is for installing acollector on a machine center that has a limitedamount of unobstructed top surface.

1. Open the units access door and remove theprimary and first stage filters.

2. Remove the filter retention system.


4. Trace bolt pattern onto the machine center ormatch drill pattern.

5. Cut opening into machine center and drillmounting holes.

6. Move the unit aside and apply generousamounts of sealant to the outside perimeter ofthe bolt pattern on the machine center.

7. Carefully position unit over the bolt pattern andlower into position.

8. Install and tighten fasteners into every hole.

9. Install filter retention system and filters.

bolt

washer

sealant

Flanged Inlet Hopper Installation, WSO 15 shown

WSO 10, 15, and 20

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Ceiling Mount Installation

1. Verify that the ceiling attachment points canbear the live load.

2. Use properly sized cable or chain to attach toeach of the four eyebolts to suspend the unitfrom the ceiling.

3. To prevent sway, position the chain or cable toform a 60 degree angle to the top of the unitand a 45 degree angle along the sides.

CAUTION!• Failure to lift the collector correctly

can result in severe personal injuryand/or property damage.

• Use appropriate lifting equipmentand adopt all safety precautionsneeded for moving and handling theequipment.

• A crane or forklift is recommendedfor unloading, assembly, andinstallation of the collector.

• Location must be clear of allobstructions, such as utility lines orroof overhang.


Top View

45°

Front View

60°

Isometric View

customer-suppliedchain or cable

eye bolt

Ceiling Mount Installation, WSO 15 shown


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Machine Center Mount with Vertical inlet Hopperand Vibration Isolators Installation

Vertical inlet hopper and vibration isolators are forinstalling a collector on a machine center that issensitive to vibration.


2. Trace bolt hole pattern for vibration isolatorson the base of legs to the machine.

3. Drill four 1/2-in holes into the machine centerfor installing the vibration isolators.

4. Fasten the isolators to machine center.

5. Carefully position unit over the isolators andlower into position.

6. Install and tighten fasteners. Vibration isolatorneeds to be torqued to 12.0 ft-lbs.

7. Connect the flexible duct using the hose clampsto the collector and the machine center collar.See Inlet Hopper with Flex-Duct Installationsection.

Note: If machine center has no inlet collar,order part from Donaldson Parts ExpressLine (1-800-365-1331).

8. Install P-trap or 1 1/2-in NPT plug. If a plug isused, a shallow pool of coolant will be presentat the bottom of the hopper before it drainsdown the inlet duct.

sealant

vertical inlet hopper

hose clamp

flex-duct

hose clamp

leg

vibrationisolator

WSO unit

P-trap draininlet collar

Internal Hopper View

Inlet Hopper with Vibration Isolators Installation, WSO 15 shown

WSO 10, 15, and 20

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16

WSO 10, 15 Collector Stand Installation

For applications with limited mounting surfaces, anadjustable stand is available for the WSO 10 and15. The stand height may be adjusted up to amaximum of 117-in from the top of the collector tothe bottom of the stand.

Stand Base Installation, WSO 15 shown

CAUTION!Donaldson equipment is not designed tosupport site-installed ducts,interconnecting piping, or electricalservices. All ducts, piping, or electricalservices supplied by others must beadequately supported to prevent severepersonal injury and/or property damage.

CAUTION!If collector drainage is not properlymaintained, the collector may collapse onstand and cause severe personal injuryand/or property damage. Maintain propercollector drainage.

1. Install customer-supplied anchor bolts (HiltiKwik Bolt 3 [KB3] 3/8-in diameter x 1.63-inembedment in uncracked 2,500 psi concrete orequivalent) in the floor extending 1 ½ inchesabove surface. Use anchor bolt pattern from thestand specification drawing or see anchor boltpattern on stand base.

2. Install stand base, level, and securely tightenanchor bolts. See Stand Base Installation below.

3. Orient the front of the mist collector to face theforklift. Adjust the forks of the forklift to liftcollector on the cabinet and inlet flange. Secureunit to the forklift. See Collector on Forkliftdetail.

4. Remove the center two inlet hopper bolts fromthe back of the unit and install the formed anglestabilizing bracket using the bolts and washersremoved from the inlet hopper. See Detail A.

5. Remove the two eyebolts on the back of thecollector and attach the upper stand bracket ofthe stand to the collector using the provided8mm bolts and washers. See Detail B.

6. Using the provided hardware 3 1/4-in x 3/8-inbolts and mounting plate, secure the bottom ofthe collector to the stand. See Detail A.

7. Securely fasten all hardware. See Details A andB.

8. Lift collector and top portion of the stand overpreviously installed stand base and lower to thedesired height. See Upper and Lower StandInstallation detail and Stand Height Adjustmentdetail.

9. Securely fasten the clamping hardware foradded safety. See Detail D.

10. Permanently secure the stand height by drillinga 3/8-in hole through the upper and lower tubesand securing with a ½-in nut and bolt. SeeDetail C.

stand base

anchor boltfoundation

lower stand

WSO 10, 15, and 20

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Collector Stand Installation, WSO 15 shown

bolt

washer

eyebolt

upper stand

stabilizingbracket

boltwasher

nut

washer

washer

existinghardware

Detail A: Stabilizing Bracket Installation

mountingplate

Detail B: Upper Stand Bracket Installation

See Detail B

See Detail A

Collector on Forklift

117-inmaximum

Stand Height Adjustment

Detail D:Stand Hardware Installation

flat washer

lock washer

hex nut

locking bolt

See Detail D

Upper and Lower Stand Installation

lowerstand

upperstand

nut bolt

Detail C: Stand Lock Hardware Installation

See Detail C


18

CAUTION!The collector has a high center-of-gravityand may overturn if not securedproperly.

• Secure the collector to the liftingdevice.

• Use care when moving the unit.

Floor Mount Stand Installation, WSO 20 shown

CAUTION!The collector has a high center-of-gravityand may overturn if not secured properly.Secure the collector properly.

filtercabinet

inlethopper

eye bolt

foundationanchor bolt

leg

Spreader Bar Lifting Detail

angle not to exceed 30° from vertical (minimum 60°from horizontal)

Eyebolt Lifting Angle

clevis pin

eyebolt

spreaderbar

WSO 20 Floor Mount Stand Installation

1. Prepare the foundation in the selected location.Install customer-supplied anchor bolts to extenda minimum of 1 1/2-in above foundation.Anchor bolt pattern and recommended anchorbolt specifications are shown on thespecification control drawing.

2. Using a crane or forklift, raise the WSO 20collector and lower into position onto anchorbolts. Level unit and secure all hardware.

Note: When using a crane, use clevis pins and asling attached to four eyebolts.

3. Remove crane or forklift.

WSO 10, 15, and 20

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Inlet Hopper with Flex-Duct Installation

This option is available for ceiling mounted units orunits on stands. Included components are a 6-inintegrated collar on the inlet hopper, 10-ft flexibleduct, and two 6-in hose clamps.

1. Slip flex-duct over inlet collar on collector andinstall hose clamp over flex-hose and collar andsecurely fasten.

2. Trim flex-duct to the desired length and fastento machine center or inlet hood with remaininghose clamp.

Note: Do not allow flexible duct to create afluid trap. See Flex-Duct Positioningillustration in General Installationsection.

3. Install drain / P-trap. See P-Trap Installationsection.

sealant

inlet hopper

hose clamp

flex-duct

hose clamp

filter cabinet

P-trap drain

Inlet Hopper with Flex-Duct, WSO 15 shownsealant

side inlet hopper hose

clampflex-duct

filter cabinet

hose clamp

P-trap drain

Side Inlet Hopper with Flex-Duct, WSO 15 shown


20

hopper

fluidhead

union

pipe plug

NPT pipe

P-Trap Installation

CAUTION!Ensure collected material properly flowsthrough the P-trap. Improperly operatingP-trap may result in propery damage.

P-Trap Installation

Note: Ensure P-trap is designed with sufficientfluid head to overcome blower staticcapabilities. An incorrectly sized P-trapwill result in coolant pooling within theinlet plenum.

1. Install the P-trap as shown in P-TrapInstallation.

2. Position the P-trap outlet to the proper locationand tighten the union.

3. Plumb the P-trap to a receptacle or install areturn line back to the machine center.

4. Fill P-trap before starting unit.

Note: The characteristics of some machiningfluids change with time, use, andexposure to air. Check the condition ofthe collected fluid before re-using.

WSO 10, 15, and 20

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CAUTION!• Electrical installation must be

performed by a qualified electricianand comply with all applicablenational and local codes.

• Lock out electrical power sourcesbefore performing service ormaintenance work.

• Do not install in classified hazardousatmospheres without an enclosurerated for the application.

Electrical Connection

1FU

2FU

3FU

1M 1OL

1T2

1T3

fanmotor

Disconnect

L1

L2

L3

1T11L1

1L2

1L3

208/230/460/575/60/3

Motor Starter Wiring CAUTION!• Do not look into blower outlet to

determine rotation.

• Check that the exhaust plenum is freeof tools or debris before checkingblower rotation.

• Stand clear of exhaust to avoidpersonal injury.

WSO mist collectors must be equipped with acustomer-supplied safety disconnect with shortcircuit protection, contactors, and overloadprotection. Complete the wiring as shown in MotorStarter Wiring.

Motor Starter Control Box

Mount the motor starter control box in aconvenient location. An electrical knockout, sizedfor 1/2-in fittings, is provided on the left-hand sideof the blower cabinet. Increase knockout size usinga drill as required.

1. Using the wiring diagram supplied inside thecontrol box and the instructions on the motordecal, make the connections to the blowermotor.

Note: If the unit is supplied with an optionaljunction box, wire the motor starter tothe terminal strip located inside thejunction box according to the wiringdiagram supplied with the junction box.

2. Turn the blower motor ON then OFF and checkfor proper rotation. See rotation arrow on themotor’s mounting plate.

To reverse rotation, three-phase power supply:

Turn electrical power OFF at source, properlylock-out power, and switch any two leads onthe output-side of the blower motor starter.

3. Ground cabinet according to local electriccodes.


22

Optional Equipment

Factory-Installed HEPA/95% DOP Filter

Any HEPA or 95% DOP Filter module orderedwith any WSO collector comes with a factory-installed Minihelic gauge for measuring thepressure drop across the filter.

The HEPA or 95% DOP afterfiler is attached to thetop of the WSO unit using side-mounted latches.

afterfilter

latch

filtercabinet

afterfilterdifferential

pressuregauge

Afterfilter Differential Pressure Gauge with HEPA/95% DOP Module, WSO 15 shown

Retrofit Kit Field Installation

An afterfilter installation retrofit kit is available forcustomers who decide to add a HEPA or 95% DOPfilter to an existing field-operating WSO machine-mountable unit originally configured with astandard exhaust. The field kit includes: afterfilter,latches, hardware, and differential pressure gaugekit.

Latch and Afterfilter Installation

1. Turn the blower motor off and properly lock-out electrical power.

2. Remove the exhaust grill by removing thefasteners. The exhaust grill is not reinstalled.

3. Locate the existing sets of latch holes on theroof.

4. Using the latch hardware provided, install thelatches as shown in the Latch Installationsketch.

5. Place the afterfilter, gasket side down, on top ofthe exhaust outlet, and secure with the latches.

latch

latch hole

roof

Latch and Afterfilter Installation

WSO 10, 15, and 20

23

Afterfilter Differential Pressure Gauge Installation

The Minihelic gauge is used to measure the pressuredrop across the afterfilter.

1. Locate the Minihelic knock-out in cabinet.

2. Remove the knockout from the front of unit.

3. Install the Minihelic gauge per the Minihelicinstallation sketch.

elbow fitting

tubing

low pressure port

barbed fitting

differential pressure gauge

Afterfilter Differential Pressure Gauge, WSO 15 shown


24

Sprinkler Installation

CAUTION!Sprinkler systems place a large quantity ofwater in the mist collector when activated.Provide adequate drainage to removewater. Excess water and ancillaryhardware weight can cause the legstructure to collapse.

An optional fire control sprinklers is available forthe WSO mist collector. The Donaldson Torit-supplied sprinkler requires 20 to 60 psig waterpressure with a 1-in supply line. The volume ofwater discharged per sprinkler head at 20-psig is6.3 gallons per minute.

Note: Consult with local authorities wheninstalling fire control systems oncollection equipment.

pipeplug

front access door (open)

sprinkler

Sprinkler Installation (Blower Cabinet), WSO 15shown

CAUTION!Each sprinkler requires a 1-in supply lineat 20 to 60 psi water pressure.

WSO Sprinkler Installation

1. Open the front access door and remove theprimary filter.

2. Locate the ½-in coupling located at the top rearof the dirty air-plenum.

3. Apply pipe sealant to the sprinkler threads.

4. Thread the sprinkler into the ½-in sprinkler tapand tighten securely.

5. Re-install the primary filter and close the frontaccess door.

6. At the outside rear of the unit, locate the ½-incoupling.

7. Remove the 1/2–in pipe plug from the sprinklertap.

8. Install the water supply to the ½-in sprinklertap coupling.

WSO 10, 15, and 20

25

hopperdrain

faucet

Drain Collection Container


The optional drain collection container is intendedfor use where small amounts of liquid are collectedand requires regularly scheduled maintenance.Failure to empty the collection bottle will result ininlet plenum overflow.

1. Install the drain collection container duringinstallation or after unit is in its’ final operatingposition.

2. Turn unit OFF.

3. Remove the container by unscrewing thecontainer from the cap. Clean the container,faucet, and re-install.

Note: Close the faucet before turning thecollector back ON.


26

Preliminary Start-Up Check

CAUTION!• Do not look into blower outlet to

determine rotation.

• Check that the exhaust plenum is freeof tools or debris before checkingblower rotation.

• Stand clear of exhaust to avoidpersonal injury.

• Do not operate without properDonaldson filters.

CAUTION!Lock out electrical power sources beforeperforming service or maintenance work.

CAUTION!Lock out electrical power sources beforeperforming service or maintenance work.

1. Check all electrical connections for tightnessand contact.

2. Check for and remove all loose items in or nearthe inlet and outlet of the unit.

3. Check that all remote controls are wired intothe control system, and all service switches arein the OFF position.

4. Check that all optional accessories are installedproperly and secured.

5. Check that all filters are properly installed andfilter access doors are closed and latched.

6. Check that hopper discharge is open and thestorage container is sealed, if equipped.

7. Fill P-trap if equipped, or close faucet valve ondrain collection container if used.

8. Turn power ON at source.

9. Turn the blower motor ON then OFF to checkfor proper rotation by referencing the rotationarrow located on the motor’s mounting plate.

To reverse rotation, three-phase power supply:

Turn electrical power OFF at source, properlylock-out power, and switch any two leads onthe output-side of the blower motor starter.

10. Adjust the blower for proper airflow byadjusting the volume control damper on theblower discharge, if equipped.

Note: Excess airflow can shorten filter life,cause electrical system failure, and blowermotor failure.

Service Information

Operational Checklist

1. Monitor overall performance of the collector.

2. Monitor exhaust. Exhaust should remainvisually clean throughout filter life. If leaks arevisible, check the filters for positive gasket seals.

3. Monitor hopper drainage. If slow or stopped,check hopper for obstructions and clean asnecessary.

4. Check that the P-trap is full. Refill if low or dry.

5. Monitor pressure drop across the primary filterand afterfilter (if equipped) using theappropriate differential pressure gauge. SeeFilter Cleaning and Replacement section.

6. For a typical installation, Donaldsonrecommends filter replacement when the gaugeindicator needle is half way into the red zone.See Filter Cleaning and Replacement section.

Note: Do not attempt to clean or wash theprimary filter. Replace only.

Note: Do not operate the unit without the first-stage or primary filter in place.Significant reduction in final filter life canresult.

WSO 10, 15, and 20

27



28

CAUTION!• Use proper safety and protective

equipment when removingcontaminants and filters.

• Dirty filters may be heavier than theyappear.

• Use care when removing filters toavoid personal injury.

• Do not drop filters.

CAUTION!• Use proper safety and protective

equipment when removingcontaminants and filters.

• Dirty filters may be heavier than theyappear.

• Use care when removing filters toavoid personal injury.

• Do not drop filters.

CAUTION!Loaded mist collection filters can exceed40 lbs. Take appropriate precautions whenlifting filters or risk personal injury.

First Stage Filter Cleaning and Replacement

Remove the first stage filter through the loweraccess door. Clean the first-stage screen by tappingit gently over an appropriate waste container. Iffurther cleaning is required, wash in an appropriatewash tank. To clean the first-stage filter, soak in anappropriate wash tank, rinse, dry, and re-install.

Note: High temperature, steam-cleaningmethods should not be used with thepolypropylene filters due to thetemperature limitations.

Do not operate the WSO mist collectorwithout the first-stage filter in place.Significant reduction in primary filter lifecan result.

Primary Filter Replacement

Note: With the unit’s airflow off, allow mist-laden, wet filter to drain into the inletplenum for at least 15 minutes prior toremoval.

1. Remove the filter cartridge by pulling the filterretention lever down to a horizontal position.Remove cartridge from unit and dispose ofproperly for the materials collected.

Note: A large plastic garbage bag placed overthe top of the used filter allows cleanerfilter change out. The filter can be tippedforward and out of the unit while the bagis pulled up over the bottom of thecartridge.

2. Place new filter on the filter retention platform,gasket side up. Slide filter back as far as it willgo.

Note: The primary filter must be replaced. Donot wash.

3. Lift the filter retention lever up and close accessdoor.

WSO 10, 15, and 20

29

primaryfilter cartridge

filter retention lever pull down

Primary Filter Replacement, WSO 15 shown


30

Final Filter Replacement

Note: The final filter must be replaced.Do not wash.

1. Unlatch the final filter on top of the unit.

2. Remove the filter and dispose of properly forthe collected materials.

Note: Dirty filters may be heavier than theyappear. Provide a support platform orhave two people, one on each side of thefilter and pull the filter out.

3. Install the replacement filter gasket-side down.

4. Latch the new filter in place.

final filter(gasket-side down)

latch

filtercabinet

Final Filter Replacement, WSO 15 shown

WSO 10, 15, and 20

31

P-Trap Service

1. Place a suitable container under the P-trap, turnthe collector OFF and remove the pipe plug.

2. Allow fluid and particulate to drain.

3. Inspect interior of P-trap and remove anymaterial blockage.

4. Use thread sealant and replace pipe plug.

5. Refill the P-trap with suitable fluid beforerestarting the collector.

pipe plug

P-Trap

strainer screen

P-trap valve

screenclean-out

valve

P-Trap with Y-Strainer

P-Trap with Y-Strainer, Screen Cleaning andRemoval

1. Place a suitable container under the screenclean-out valve, turn the collector OFF, close theP-trap valve, then open the screen clean-outvalve.

2. Allow fluid and particulate to drain.

3. With the clean-out valve open, slowly open theP-trap valve. This allows fluid still trapped inthe hopper to drain.

Note: A substantial amount of fluid may betrapped in the hopper and could exceedthe container capacity. Open the P-trapvalve slowly.

4. Close the P-trap valve.

5. Unscrew the screen cap and pull the screen out.

6. Clean the screen and the inside of the Y-strainerbody and re-assemble taking care to seat thescreen in the body and cap.

7. Close the clean-out valve.

8. Open the P-trap valve.

9. Refill the P-trap with suitable fluid beforerestarting the collector.


32


Note: Service the drain collection containerbefore it becomes completely filled withfluid. Fluid above the container willdischarge when the container isdisconnected from the collector.

1. Turn unit OFF.

2. Remove the container by unscrewing thecontainer from the cap. Clean the container,faucet, and reinstall.

Note: Close the faucet before turning thecollector back ON.


hopperdrain

faucet

WSO 10, 15, and 20

33

Troubleshooting

Problem Probable Cause Remedy

Blower and motor donot start

Improper motor wire size Rewire using the correct wire gauge as specifiedby national and local codes.

Not wired correctly Check and correct motor wiring for supplyvoltage. See motor manufacturer’s wiringdiagram. Follow wiring diagram and theNational Electric Code.

Unit not wired for availablevoltage

Correct wiring for proper supply voltage.

Input circuit down Check power supply to motor circuit on all leads.

Electrical supply circuit down Check power supply circuit for proper voltage.Check for fuse or circuit breaker fault. Replace asnecessary.

Overload relay tripped Reset. Check amp draw on motor leads.

Defective overload heater oroverload assembly

Replace as necessary.

Blower and motorstart, but do not stayrunning

Incorrect motor starter heaterelements installed

Check for proper heater elements and replace ifnecessary.

Access doors are open or notclosed tight

Close and tighten access doors.

Electrical circuit overload Check that the power supply circuit has sufficientpower to run all equipment.

Clean-air outletdischarging oil mist

Filter cartridges not installedcorrectly

See Filter Service section.

Filter cartridge damage, dents inthe end caps, gasket damage orholes in pleated media

Replace filters as necessary. Use only genuineDonaldson replacement parts. See Filter Servicesection.

Inlet dischargingvolumes of oil

Plugged P-trap Clean P-trap. See P-Trap Service Section.

Plugged or full drain collectioncontainer

Remove and clean or empty the drain collectioncontainer.


34

Troubleshooting, continued

Problem Probable Cause Remedy

Insufficient airflow Blower rotation backwards Proper blower rotation is clockwise whenlooking down at the blower motor. SeePreliminary Start-Up Check section.

Access doors open or notclosed tight

Check that all access doors are in place andsecured.

Blower exhaust area restricted Check blower exhaust area for obstructions.Remove materials or debris.

First-Stage filter plugged Remove and clean or replace.

Primary filter needsreplacement

Remove and replace using genuine Donaldsonreplacement filter. See Primary Filter Replacementsection.

Plugged HEPA filter Remove and replace. See HEPA FilterReplacement section.

Insufficient hopperdischarge

Plugged hopper screen Remove and clean hopper screen.

Plugged P-trap Clean P-trap. See P-Trap Service section.

Liquid leaking fromcollector door

Plugged P-trap Clean P-trap. See P-Trap Service section.

Plugged or full draincollection container

Remove and clean or empty the drain collectioncontainer.

WSO 10, 15, and 20

35

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Service Notes


36

Service Notes, continued

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installation and operation manualused for light lubrication and generally creates mist greater than...

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