Donaldson Torit Dalamatic DLMV Series User manual

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 unit 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.
Dalamatic®Insertable
DLMV
Installation and Operation Manual
Installation, Operation, and Service Information
IOM 7592601 (ENG)
Revision 6
English
Master Language

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

Dalamatic, DLMV
i
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.
Magnehelic®and Photohelic®are registered trademarks of Dwyer Instruments, Inc.
Contents
Description ...............................................................................1
Purpose and Intended Use ....................................................1
Operation...................................................................................3
Inspection on Arrival...............................................................4
Installation Codes and Procedures ......................................4
Installation.................................................................................4
Unit Location .........................................................................5
Site Selection .......................................................................5
Rigging Instructions.................................................................5
Hoisting Information ............................................................5
Typical Installation...................................................................6
Standard Equipment................................................................7
Unit Installation.....................................................................7
Filter Bag Installation...........................................................7
Compressed Air Installation...............................................9
Electrical Wiring.................................................................10
Solid-State Timer Installation...............................................11
Solenoid Connection..........................................................11
Timer and Solenoid Specifications..................................11
Preliminary Start-Up Check .................................................13
Maintenance Information.....................................................14
Operational Checklist ........................................................14
Diaphragm Replacement ..................................................15
Filter Removal and Installation.........................................15
Filter Bag..............................................................................15
Compressed Air Components...........................................16
Optional Equipment................................................................17
Magnehelic®Gauge .........................................................17
Photohelic®Gauge ............................................................18
Delta P Control....................................................................20
Delta P Plus Control ..........................................................21
Antistatic Option.................................................................22
Explosion Vent ....................................................................23
Troubleshooting......................................................................24
Service Notes.........................................................................25

1
Donaldson Company, Inc.
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.
The Dalamatic Model DLMV Insertable dust collectors
are continuous-duty collectors with bag-style filters
designed to handle known quantities of dust. Primarily
installed in storage vessels or silos, they provide
continuous filtration and maintain high collection
efficiency at constant system resistance. Variations
are available for pneumatic conveying operations
where high dust concentrations of raw materials and
particulate products are found. Continuous duty means
no downtime. The filters are pulse-cleaned one at a time
without turning the unit off. Standard sizes range from
43 to 645 sq ft of filter area and feature either a Delta P
or DeltaP Plus controller to control the filter cleaning
operation.
In pneumatic conveying systems, Dalamatic Insertables
can be inserted through the top of silos or storage
vessels to separate the product conveying from
displaced air to prevent product loss and nuisance dust.
DLMV, Type B and W are suitable for positive pressure
systems and Type F and H are applied when a suction
fan is required to overcome negative system pressure.
In mechanical conveying systems, the dust generated
by product loading, transfer, and discharge can be
controlled using a DLMV, Type F in an enclosure. The
collected dust returns directly to the product conveyed
making expensive ductwork systems unnecessary,
saving space, and eliminating dust disposal issues.
Dalamatic Insertables can be integrated with process
machinery requiring dust control such as fluid bed
reactors, mixers, blenders, mills, and crushers. Some
typical applications include powder paint booths and
automatic bag-slitting machines. The DLMV is commonly
used in the chemical, mineral, food, plastic, metal
compounds, and pharmaceutical industries. With custom
modifications, the DLMV is suitable for high-temperature
applications.
Description Purpose and Intended Use
Misuse or modification of this
equipment may result in personal
injury.
Do not misuse or modify.

Dalamatic, DLMV
2
All Units:
Compressed air, maximum psig.................................. 90-100
Housing rating, inches water gauge ...........................+/- 20
Control power..............................................120-Volt 50/60 Hz
*If unit was supplied with a Record Drawing, the
specifications on the drawing will supersede the
standard specifications above.
Front View
DLMV B
Typical Side View
DLMV B
Rating and Specification Information

3
Donaldson Company, Inc.
During normal operation, dust-laden air is drawn to the
filter bags. The velocity is reduced and natural pre-
separation, caused by the effects of gravity, takes place.
Fine particles collect on the outside surface of the filter
bag and clean, filtered air passes to the center of the bag
and discharges through the clean-air outlet.
Filter cleaning is completed using pulse-jet technology. A
jet tube positioned over each filter bag distributes a pulse
of compressed air through the filter. As the compressed
air enters the filter bag, airflow is temporarily reversed
and the bag inflates dislodging the dust cake formed on
the outside of the bag. The bag deflates and the dust
cake falls back into the silo or process equipment.
jet tube
outlet header
seal frame
sealing flange
and ring
accumulated
dust cake
wire insert
filter bag
clean-air plenum
dirty-air plenum
jet tube injecting
compressed air
air inducted by
force of jet
clean-air plenum
dirty-air plenum
airflow temporarily
reversed, inflating bag
and dislodging
dust cake
dust cake falls
back into the silo
or process equipment
Normal Operation Filter Cleaning Operation
clean-air outlet
Unit Operation
Operation

Dalamatic, DLMV
4
Inspection on Arrival
1. Inspect unit on 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 unit 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
unit from truck.
8. Check for hardware that may have loosened during
shipping.
9. Use caution removing temporary covers.
Installation Codes and Procedures
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 and bleed
lines before performing service or maintenance
work.
Site selection must account for
wind, seismic zone, and other
load conditions when selecting the location for
all units.
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 and
anchors must be sufficient to support dead,
live, seismic, and other anticipated loads.
Consult a qualified engineer for final selection
of anchorage.
Do not set compressed-air
pressure above 100-psig.
Component damage can occur.
All compressed air components must be sized
to meet the maximum 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 unit’s compressed air
manifold.
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 unit 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 unit
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 unit prior to, or during unit installation.
Failure to remove shipping
materials from the unit will
compromise unit performance.
Inspect unit to ensure all hardware is properly installed
and tight prior to operating collector.

5
Donaldson Company, Inc.
The unit is suitable for either indoors or outdoors.
Reference the Rating and Specification Information.
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.
Unit Location
Donaldson Torit equipment is not
designed to support site installed
ducts, interconnecting piping, or electrical
services. All ducts, piping, or electrical
services supplied by others 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.
If combustible materials will
be processed through this
collector, local codes may require the collector
be located either outside or adjacent to an
exterior wall to accommodate devices related
to a fire or explosion mitigation strategy.
Consult local codes prior to installation.
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.
Site Selection
This unit can be located on a foundation or structural
framing.
Provide clearance from heat sources and avoid any
interference with utilities when selecting the location.
Portable units require special installation
accommodations.
Note: Units with explosion vents are not available
in portable configurations.
If unit is to be located outdoors, an appropriate exhaust
and remote electrical controls may be necessary.
When outdoor locations are
selected, always mount motors
with drain holes pointed down for proper
drainage of moisture.
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)
Hoisting Information
Failure to lift the collector
correctly can result in severe
personal injury 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 unit’s casing.
Check the Specification Control drawing for weight
and dimensions of the unit and components to ensure
adequate crane capacity.
Allow only qualified crane operators to lift the equipment.
Refer to applicable OSHA regulations and local codes
when using cranes, forklifts, and other lifting equipment.
Lift unit and accessories separately and assemble after
unit is in place.
Use drift pins to align holes in section flanges during
assembly.

Dalamatic, DLMV
6
Two-Point Lift for Horizontal Installation, Manifold Up
Note: Horizontal installations are normally placed
manifold up for service and maintenance
access. However, if headroom is restricted,
they may be placed manifold down.
adjust chain or cable
to lift unit level
included angle of chain
must not exceed 90°
Four-Point Lift for Vertical Installation
protective
packing
< 90°
°
included angle of chain
must not exceed 90°
Two-Point Lift for Horizontal Installation, Manifold Down
< 90°
Typical Installation
Typical Installation

7
Donaldson Company, Inc.
Standard Equipment
Dalamatic Insertable dust collectors are delivered
partially assembled. Unit installation, filter bag
installation, compressed air, and electrical connections
are completed at the job site.
Unit Installation
Note: Compare the position and spacing of the bolt
pattern on the unit’s mounting flange to the
bolt pattern on the mounting surface.
1. Open the header cover and remove the components
shipped loose inside.
2. Apply two strips of 1/4-in diameter rope-type sealant
or caulk to the mounting surface: one toward the
inside of the bolt pattern and one toward the outside
of the bolt pattern.
3. Lift unit into position over mounting surface and
lower slowly.
4. Use drift pins to align holes.
Note: Install flat bar stiffeners, if equipped. See
Optional Flat Bar Stiffener Installation.
5. Secure with bolts, washers, and hex nuts supplied.
Tighten to form an airtight seal.
Filter Bag Installation
1. Remove header cover, if equipped.
2. Remove jet tubes and set aside.
3. Slide the filter bag over the wire support frame as
shown. Slide bag carefully until top of bag is tight
against the support frame flange.
4. Place filter bag and wire support assembly in seal
frame slots as shown.
5. Position clamps and tighten using a deep well
socket and extension. Do not overtighten. Maximum
recommended torque is 20 ft/lb.
Note: If filter bags are mounted horizontally,
tighten bottom clamp first.
6. Repeat to install all bags.
7. Replace jet tubes with the open end pressed firmly
into its locator and the orifices directed toward the
filter bag.
base side panel
bolt holes
flat bar stiffener
Optional Flat Bar Stiffener Installation
Filter Bag Assembly

Dalamatic, DLMV
8
Jet Tube Installation
Filter Bag Installation
Clamps and Inserts
jet tube
insert header
insert clamp
seal frame
recess for
filter bag
filter bag
insert frame
sealing ring
sealing flange
Filter Bag Detail

9
Donaldson Company, Inc.
Compressed Air Installation
Turn compressed-air supply OFF
and bleed 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
downstream pressure when closed and include
provisions to allow closed-position locking.
Do not set compressed-air
pressure above 100-psig.
Component damage can occur.
All compressed air components must be sized
to meet the system requirements of 90-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 unit’s compressed-air
manifold.
Model Compressed Air
Pressure*
Pulse Duration,
millisecond
Pipe Diameter,
inches***
DLMV 4/7, 6/10, and 9/15 65 psi 200 1/2
DLMV 7/7, 10/10, and 15/15 65 psi 200 1/2
DLMV 8/7, 12/10, and 18/15 90 psi 200 1/2
DLMV 14/7, 20/10, 5-valve 90 psi 200 1/2
at 12-second intervals*
DLMV 21/7 and 30/10 75 psi 60 1/2
DLMV 30/15 65 psi 110 1/2
DLMV 45/15 75 psi 110 1/2
DLMV 60/15 90 psi 110 1/2
* Normal operating pressure
** Recommended initial setting
*** Up to 100 ft
Compressed Air Requirements
1. Remove the plastic pipe plug from the unit’s air
manifold and connect the compressed-air supply
line. 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 between 90-100psig. The
pulse-cleaning controls are factory set to clean one
or more filters every 10-seconds during a cleaning
cycle.

Dalamatic, DLMV
10
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 unit’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 unit’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.
Using Existing Compressed-Air Supply
Install a customer-supplied shut-off valve, bleed-type
regulator with gauge, filter, and automatic condensate
valve in the compressed-air supply line to the unit.
Using Compressor-Supplied Compressed-Air
1. Use a compressor of adequate capacity. An
overloaded compressor will produce contaminated,
moisture-laden air.
2. Avoid locating the air intake in an excessively
polluted area and install an air intake filter.
3. The piping between the compressor and the unit
should act as a cooling device for the compressed
air. A typical requirement for a smaller installation
would be 30-ft of 1/2-in diameter pipe. Install the pipe
to provide a fall in the direction of airflow to assist
drainage of accumulated moisture.
4. Install a customer-supplied shut-off valve, bleed-
type regulator with gauge, filter, and automatic
condensate valve in the compressed-air supply line.

11
Donaldson Company, Inc.
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.
The solid-state timer is used to control th e filter cleaning
system. Available options include 3, 6, 10, 20, or 32-pin
solenoid valve control.
1. Using the wiring diagram supplied, wire the
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.
3. With power supply ON, check the operation of the
solenoid 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 120VAC).
Do not mount the solid-state timer directly to
the unit. Mechanical vibration can damage the
timer.
Solenoid Connection
The unit is equipped with a solenoid valve (typically 120V)
that controls the pulse-cleaning valves, which clean the
filters.
Solenoid enclosures are mounted near or on the unit’s
compressed-air manifold.
Wire the solenoids to the solid-state timer following
the wiring diagram supplied with the unit. 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.

Dalamatic, DLMV
12
L1 L2
ground lug
120V
1
2
3
4
pulse jet
sequencer
L2
white
printed circuit board black edge connector removable to facilitate field wiring
Use diagram provided with unit
SEQ1
L1
red
12-core cable
to terminal boxes
black red yellow blue green gray pink brown purple white orange
solenoid
valves
SV1
SV2
SV3
SV4
SV5
SV6
SV7
SV8
SV9
SV10
L1 L2
solenoid
commons
1
2
3
4
5
6
7
8
9
10
delta P
terminals
interlock
terminals
1
2
3
4
5
6
7
8
9
10
C
6
7
8
9
10
1
2
3
4
5
black
red
yellow
blue
green
gray
pink
brown
purple
white
orange
jumper for 10
compartment
cleaning
200
110
60
1
Solid-State Timer Typical Wiring Diagram
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. Component
damage can occur.

13
Donaldson Company, Inc.
Start-Up
1. Turn compressed-air supply ON.
2. Turn the equipment being served ON.
3. Turn timing controls ON.
4. Turn main fan ON, if equipped.
Shut Down
Follow this shutdown procedure to clear residual
deposits from the filter bags, filter body, and equipment
served:
1. Turn main fan OFF, leaving compressed air supply ON
to allow off-line filter cleaning.
Note: Contact your Donaldson representative for
shutdown instructions for explosion vented
units.
2. Wait 10 to 15 minutes and turn timing controls and
compressor OFF.
Preliminary Start-Up Check
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 and bleed
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.
1. Check all electrical connections for tightness and
contact.
2. Check for proper rotation as noted on the fan
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
damage or personal injury 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 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 unit.
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 setting in Compressed Air Requirements
table.
11. Turn blower 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 blower motor failure.

Dalamatic, DLMV
14
Check Monthly
1. Proper solenoid and diaphragm valve operation.
2. If equipped, check door seals for condition and
contact. Replace or adjust as necessary.
3. If equipped, check that the clean-air plenum is free
of dust accumulation. If dust is present, check the
surrounding filter bags for tears or loose seals.
Check Annually
Moisture Separator
Isolate the compressed-air supply and remove and clean
the filter.
Compressed-Air Manifold
Isolate the compressed air supply, remove the drain plug
and air inlet connections and clean thoroughly.
Filter Bags
Remove one or two filter bags and inspect for general
condition. Replace if necessary.
Jet Tubes
Check that jet tubes are clean and the orifices are clear.
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 and bleed
lines before performing service or maintenance
work.
Do not set compressed-air
pressure above 100-psig.
Component damage can occur.
All compressed air components must be sized
to meet the maximum 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 unit’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.

15
Donaldson Company, Inc.
Filter Bag
1. Activate the pulse cleaning for 10 to 15 minutes to
remove excess dust from the filter bags.
2. Remove header cover, if equipped.
3. Remove jet tubes and set aside.
4. Remove the hex nuts securing the wire insert.
Remove the clamps and withdraw the insert and
filter bag. Inspect insert for excess corrosion, broken
mesh, or other damage and replace as necessary.
jet tube
insert header
insert clamp
seal frame
recess for
filter bag
filter bag
insert frame
sealing ring
sealing flange
Filter Bag Detail
5. Slide the filter bag over the wire support frame as
shown. Slide bag carefully until top of bag is tight
against the support frame flange.
6. Place filter bag and wire support assembly in seal
frame slots as shown.
7. Position clamps and tighten using a deep well
socket and extension. Do not overtighten. Maximum
recommended torque is 20 ft/lb.
Note: If filter bags are mounted horizontally, tighten
bottom clamp first.
8. Repeat to install all bags.
9. Replace jet tubes with the open end pressed firmly
into its locator and the orifices directed toward the
filter bag.
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.
Turn power off and lock out electrical
power sources before performing service or
maintenance work.
Turn compressed air supply OFF and bleed
lines before performing service or maintenance
work.
Diaphragm Replacement
1. Remove nylon tubing by pushing inward on the fitting
collar and withdraw the tubing.
2. Remove the hex-head set screws and washers
securing the valve bonnet.
3. Check that the bleed-hole pin is not blocked.
4. Place the diaphragm over the bleed hole pin with the
nylon sealing washer inside the valve throat.
5. Position spring, if equipped, inside the bonnet
recess.
6. Replace valve bonnet with the spring over the
diaphragm disk shoulder and bonnet over the bleed
hole pin. Secure using the hex-head set screws and
washers removed in Step 2.
7. Reconnect nylon tubing and secure.

Dalamatic, DLMV
16
Filter Bag Assembly
Compressed Air Components
1. Periodically check the compressed air components
and replace compressed-air filters.
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. Replace as necessary.
Filter Bag Installation
Jet Tube Installation
Clamps and Inserts

17
Donaldson Company, Inc.
1/8-in NPT x 90°
male elbow
clean-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
Optional Equipment
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 unit 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.